MedWorm: Laser Surgery

Ultrasound Guided Ablative-Laser Assisted Photodynamic Therapy of Basal Cell Carcinoma (Us-aL-PDT)

Photomedicine and Laser Surgery — Thu, 09 Feb 2012 04:03:59 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Cutera closes $5.1 million acquisition of Iridex

Modern Medicine — Wed, 08 Feb 2012 23:47:51 +0100

Cutera, a provider of laser and other light-based systems used by cosmetic surgeons, has finalized its $5.1 million cash purchase of the global aesthetic business of Iridex, Mountain View, Calif. (Source: Modern Medicine)

Metal-Oxide Nanoparticles Increase the Bactericidal Effect of Blue Light

Photomedicine and Laser Surgery — Wed, 08 Feb 2012 21:49:26 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

AAO, ASCRS offer guidance on femtosecond billing

Modern Medicine — Wed, 08 Feb 2012 05:00:00 +0100

The American Academy of Ophthalmology and the American Society of Cataract and Refractive Surgery have issued guidelines to assist ophthalmologists in determining their ability to charge Medicare and/or its beneficiaries for use of a femtosecond laser during cataract surgery. (Source: Modern Medicine)

Woman gets artificial jawbone transplant

NHS News Feed — Tue, 07 Feb 2012 18:00:00 +0100

An 83-year-old woman has been implanted with the world’s first “3D printer-created jaw”. Using cutting-edge laser manufacturing techniques, doctors and metal experts were able to build up layers of titanium to form a custom metal jawbone to exactly fit her face. The metal jawbone was then inserted into her lower jaw, replacing a large section of bone that was destroyed by a chronic infection. The technique of 3D printing has been used to build prototype products for some time, but in recent years scientists have begun experimenting with the medical possibilities offered by the process. In this case, a specialist metalwork company called Layerwise was able to translate 3D bone scans into a custom jaw. The company had previously used the process to make bone-shaped prostheses and denta...

A histological evaluation of a low-level laser therapy as an adjunct to periodontal therapy in patients with diabetes mellitus

Lasers in Medical Science — Mon, 06 Feb 2012 19:33:44 +0100

Abstract Diabetes mellitus (DM) and chronic periodontitis are common chronic diseases in adults in the world population. DM has a strong influence on the oral cavity and represents a risk factor for gingivitis and periodontitis. Low-level laser therapy (LLLT) has proven effective in the reduction of inflammation and swelling. The aim of the present study was to evaluate the efficacy of LLLT in diabetic periodontitis through histological analysis. A total of 300 diabetics with chronic periodontal disease and teeth indicated for extraction were assigned into six equal groups. In the groups 1 and 4, indicated teeth were extracted before treatment, and in the rest of the groups upon completion of the entire treatment. All patients received oral hygiene instructions and full-mo...

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Proposal of landmarks for clamping neurovascular elements during endoscopic surgery of the supraglottic region

Head and Neck — Mon, 06 Feb 2012 05:00:00 +0100

ConclusionMicrosurgery in the supraglottic region may be safer if surgeons are aware of the superior third of the above‐defined triangle, “danger area”, where the vascular elements of this region are located. © 2012 Wiley Periodicals, Inc. Head Neck, 2012 (Source: Head and Neck)

A Case Report of Multiple Eccrine Hydrocystomas Successfully Treated with Subdermal 1,444‐nm Micropulsed Neodymium‐Doped Yttrium Aluminum Garnet Laser

Dermatologic Surgery — Mon, 06 Feb 2012 05:00:00 +0100

(Source: Dermatologic Surgery)

Necrotizing Keratitis after Laser Refractive Surgery in Patients with Inactive Inflammatory Bowel Disease

Karger Publishers — Fri, 03 Feb 2012 23:00:00 +0100

Case Rep Ophthalmol 2012;3:54–60 (DOI:10.1159/000336567) (Source: Karger Publishers)

GDx VCC measurements and blue-on-yellow perimetry in ocular hypertension

Lasers in Medical Science — Fri, 03 Feb 2012 17:11:21 +0100

Abstract The aim of this work was to investigate the correlation between scanning laser polarimetry with variable corneal compensation (GDx VCC) parameters and blue-on-yellow perimetry (B/YP) indices in ocular hypertension (OHT). One eye each of 52 patients with OHT (with a normal visual field, a normal optic nerve, and an untreated IOP > 21 mmHg) was chosen. All patients were examined with the Octopus 101 automated perimetry dG2 program using the dynamic/normal strategy (white-on-white perimetry, W/WP), with the dG2 program using the dynamic strategy/BY method (blue-on-yellow perimetry, B/YP), and with GDx VCC. Seven of the 52 OHT patients had both B/YP visual field loss and retinal nerve fiber layer (RNFL) defects with the GDx VCC measurements, and four patients ...

Development and Implementation of a Web-Enabled 3D Consultation Tool for Breast Augmentation Surgery Based on 3D-Image Reconstruction of 2D Pictures

Journal of Medical Internet Research — Fri, 03 Feb 2012 05:00:00 +0100

Conclusions: We tested our tool for 3D, Web-based, patient-specific consultation in the clinical scenario of breast augmentation. This example shows that the current state of development allows for creation of responsive and effective Web-based, 3D medical tools, even with highly complex and time-consuming computation, by off-loading them to a dedicated high-performance data center. The efficient combination of advanced technologies, based on analysis and understanding of human anatomy and physiology, will allow the development of further Web-based reconstruction and predictive interfaces at different scales of the human body. The consultation tool presented herein exemplifies the potential of combining advancements in the core areas of computer science and biomedical engineering with the ...

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Lasers for the treatment of intraocular tumors

Lasers in Medical Science — Thu, 02 Feb 2012 18:15:44 +0100

Abstract Lasers are used extensively in ophthalmology for a variety of conditions, including many choroidal and retinal tumors. With technologic advances, current therapy attempts not only to maximize survival with globe-salvaging treatment, but also to preserve vision. Each neoplasm has different indications for primary and adjuvant therapy, as well as differing laser treatment protocols. Additionally, there are numerous laser applications available for use, including laser photocoagulation, transpupillary thermotherapy (TTT), and photodynamic therapy (PDT). The current review outlines the basic principles of laser treatment for intraocular tumors, focusing on the indications, treatment protocols, efficacy, and safety, while also presenting the latest advances in intraocu...

Endoscopic laser fragmentation and removal of a nonremovable metal esophageal stent for persistent dysphagia: a technical note

Surgical Endoscopy — Thu, 02 Feb 2012 18:07:53 +0100

Conclusions We describe a successful technique for the removal of a nonretrievable stent using laser fracture and endoscopic retrieval. This method of stent removal has not been previously reported. Content Type Journal ArticleCategory TechniquePages 1-3DOI 10.1007/s00464-011-2111-5Authors Ross S. Coomber, Department of Upper GI Surgery, West Herts NHS Trust, Watford General Hospital, Vicarage Road, Watford, WD18 0HB UKPranav H. Patel, Department of Upper GI Surgery, West Herts NHS Trust, Watford General Hospital, Vicarage Road, Watford, WD18 0HB UKAnubhav Dhir, Department of Healths Clinical Advisor Scheme, Bupa Health Dialog, London, UKJeremy I. Livingstone, Department of Upper GI Surgery, West Herts NHS Trust, Watford General Hospital, Vicarage Road, Watford, WD18...

Randomized controlled trial of laparoscopic gastric ischemic conditioning prior to minimally invasive esophagectomy, the LOGIC trial

Surgical Endoscopy — Thu, 02 Feb 2012 18:07:53 +0100

Conclusions LIC does not translate into an improved perfusion of the gastric conduit tip. The benefits reported from published clinical series suggest that the resistance of the conduit to ischemia occurs through alternative possibly microcellular mechanisms. Content Type Journal ArticlePages 1-8DOI 10.1007/s00464-011-2123-1Authors Darmarajah Veeramootoo, Department of Upper Gastro-Intestinal Surgery, Royal Devon and Exeter NHS Foundation Trust, Exeter, EX2 5DW UKAngela C. Shore, Institute of Biomedical and Clinical Science, Peninsula College of Medicine and Dentistry, University of Exeter, Exeter, UKShahjehan A. Wajed, Department of Upper Gastro-Intestinal Surgery, Royal Devon and Exeter NHS Foundation Trust, Exeter, EX2 5DW UK Journal Surgical EndoscopyOnlin...

Acknowledgment of Reviewers 2011

Photomedicine and Laser Surgery — Thu, 02 Feb 2012 17:24:54 +0100

Photomedicine and Laser Surgery Feb 2012, Vol. 30, No. 2: 112-113. (Source: Photomedicine and Laser Surgery)

Can fractional lasers enhance transdermal absorption of topical lidocaine in an in vivo animal model?

Lasers in Surgery and Medicine — Thu, 02 Feb 2012 05:00:00 +0100

ConclusionsThis study demonstrates that laser pretreatment significantly increases absorption of topical lidocaine so that it is detectable in the blood and that manipulating laser settings can affect drug absorption. Future work will look at translating this effect into clinical benefit. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

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Minimally ablative resurfacing with the confluent 2,790 nm erbium:YSGG Laser: A pilot study on safety and efficacy

Lasers in Surgery and Medicine — Thu, 02 Feb 2012 05:00:00 +0100

ConclusionAblative resurfacing with the 2,790 nm Er:YSGG laser demonstrated visible improvement in photodamage with good tolerability and minimal downtime. Subjects were highly satisfied, especially with respect to dyschromia, skin tone, and texture. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

One year follow‐up of contrast sensitivity following conventional laser in situ keratomileusis and laser epithelial keratomileusis

Acta Ophthalmologica — Wed, 01 Feb 2012 05:00:00 +0100

Conclusion: One year postoperatively, there was no difference in CS between both treatment groups using the Pelli‐Robson and CSV‐1000E tests. CS was reduced postoperatively in the LASIK group at the lower spatial frequencies under photopic conditions. No postoperative change was detected in CS following LASIK or LASEK using the Pelli‐Robson test. (Source: Acta Ophthalmologica)

Prospective contralateral eye study to compare conventional and wavefront‐guided laser in situ keratomileusis

Acta Ophthalmologica — Wed, 01 Feb 2012 05:00:00 +0100

Conclusion: Visual acuity and refractive error outcomes were similar in both treatment group and no patient preference was observed. Customized ablation was associated with a smaller but not statistically significant postoperative increase in HOAs, better preservation of scotopic contrast sensitivity, quicker treatment time and removal of less corneal tissue. (Source: Acta Ophthalmologica)

K-ras Mutation is Strongly Associated with Perineural Invasion and Represents an Independent Prognostic Factor of Intrahepatic Cholangiocarcinoma after Hepatectomy

Annals of Surgical Oncology — Tue, 31 Jan 2012 07:11:03 +0100

Conclusions The prevalence of K-ras mutations in a considerably large cohort of ICC was 22%. K-ras mutation is strongly associated with perineural invasion phenotypically. K-ras mutation is an independent prognostic factor of ICC after hepatectomy. Content Type Journal ArticleCategory Translational Research and BiomarkersPages 1-7DOI 10.1245/s10434-012-2224-7Authors Tse-Ching Chen, Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, TaiwanYi-Yin Jan, Department of Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, TaiwanTa-Sen Yeh, Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan Journal Annals of Surgical OncologyOnline ISSN 1534-4681Print ISSN 1068-9265 (Sourc...

Platelet‐Rich Plasma Combined with Fractional Laser Therapy for Skin Rejuvenation

Dermatologic Surgery — Mon, 30 Jan 2012 05:00:00 +0100

ConclusionPRP with fractional laser treatment is a good combination therapy for skin rejuvenation. Keratinocyte and fibroblast proliferation and collagen production can explain the capacity of PRP to increase dermal elasticity. (Source: Dermatologic Surgery)

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Advanced Treatment Modalities for Vitiligo

Dermatologic Surgery — Mon, 30 Jan 2012 05:00:00 +0100

ConclusionOur ability to treat vitiligo may be imperfect, but through appropriate patient selection and careful application of one or more of these advanced therapies, successful treatment of vitiligo, even in patients refractory to treatment, can be achieved. (Source: Dermatologic Surgery)

Laser cordectomy offers good outcomes in elderly glottic carcinoma patients

MedWire News - Oncology — Sun, 29 Jan 2012 13:23:43 +0100

Endoscopic laser surgery is an effective and well-tolerated treatment for glottic carcinoma in elderly patients, study findings show. (Source: MedWire News - Oncology)

LED Phototherapy Improves Healing of Nipple Trauma: A Pilot Study

Photomedicine and Laser Surgery — Sat, 28 Jan 2012 04:16:14 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Surgical outcome of Descemet’s stripping automated endothelial keratoplasty for bullous keratopathy secondary to argon laser iridotomy

Graefe's Archive for Clinical and Experimental Ophthalmology — Fri, 27 Jan 2012 17:54:24 +0100

Conclusions Descemet’s stripping automated endothelial keratoplasty for BK secondary to ALI showed rapid postoperative visual improvement, with similar efficacy and safety to that observed in DSAEK for PBK or FED. Content Type Journal ArticleCategory CorneaPages 1-8DOI 10.1007/s00417-012-1927-6Authors Masatoshi Hirayama, Department of Ophthalmology, Ichikawa General Hospital, Tokyo Dental College, 5-11-13, Sugano, Ichikawa, Chiba 272-8513, JapanTakefumi Yamaguchi, Department of Ophthalmology, Ichikawa General Hospital, Tokyo Dental College, 5-11-13, Sugano, Ichikawa, Chiba 272-8513, JapanYoshiyuki Satake, Department of Ophthalmology, Ichikawa General Hospital, Tokyo Dental College, 5-11-13, Sugano, Ichikawa, Chiba 272-8513, JapanJun Shimazaki, Department of Ophthal...

Photodynamic Modulation of Wound Healing: A Review of Human and Animal Studies

Photomedicine and Laser Surgery — Fri, 27 Jan 2012 15:56:36 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Diode laser (980 nm) enucleation of the prostate: a promising alternative to transurethral resection of the prostate

Lasers in Medical Science — Thu, 26 Jan 2012 16:44:13 +0100

Abstract With good hemostatic ability, the end-firing continuous-wave diode laser at 980 nm was used to enucleate the prostate (DiLEP) for the treatment of benign prostatic obstruction (BPO). The study compared the patients’ demographics and surgical outcomes between DiLEP and transurethral resection of the prostate (TURP). Patients with significant BPO and a total prostatic weight of 40 g or more who had undergone DiLEP (n = 74) or TURP (n = 52) during the same period at our hospital were enrolled for analysis. DiLEP was performed by a single surgeon (Yang), and TURP by three surgeons (Yang, Hsieh and Chang). The 4-U incision technique was developed for DiLEP. The diode laser ensured bloodless incision followed by blunt dissection using the resectoscope...

Excimer laser refractive surgery versus phakic intraocular lenses for the correction of moderate to high myopia.

Cochrane Database of Systematic Reviews — Thu, 26 Jan 2012 08:18:08 +0100

CONCLUSIONS: The results of this review suggest that phakic IOLs are safer than excimer laser surgical correction for moderate to high myopia in the range of -6.0 to -20.0 D and phakic IOLs are preferred by patients. While phakic IOLs might be accepted clinical practice for higher levels of myopia (greater than or equal to 7.0 D of myopic spherical equivalent with or without astigmatism), it may be worth considering phakic IOL treatment over excimer laser correction for more moderate levels of myopia (less than or equal to 7.0 D of myopic spherical equivalent with or without astigmatism). Further RCTs adequately powered for subgroup analysis are necessary to further elucidate the ideal range of myopia for phakic IOLs. PMID: 22258972 [PubMed - in process] (Source: Cochrane Database of S...

Photodynamic inactivation of biofilms formed by Candida spp., Trichosporon mucoides, and Kodamaea ohmeri by cationic nanoemulsion of zinc 2,9,16,23-tetrakis(phenylthio)-29H, 31H-phthalocyanine (ZnPc)

Lasers in Medical Science — Wed, 25 Jan 2012 18:11:34 +0100

Abstract The biofilms formed by opportunistic yeasts serve as a persistent reservoir of infection and impair the treatment of fungal diseases. The aim of this study was to evaluate photodynamic inactivation (PDI) of biofilms formed by Candida spp. and the emerging pathogens Trichosporon mucoides and Kodamaea ohmeri by a cationic nanoemulsion of zinc 2,9,16,23-tetrakis(phenylthio)-29H,31H-phthalocyanine (ZnPc). Biofilms formed by yeasts after 48 h in the bottom of 96-well microtiter plates were treated with the photosensitizer (ZnPc) and a GaAlAs laser (26.3 J cm–2). The biofilm cells were scraped off the well wall, homogenized, and seeded onto Sabouraud dextrose agar plates that were then incubated at 37°C for 48 h. Efficient PDI of biofilms was verifie...

Comparing an optical parametric oscillator (OPO) as a viable alternative for mid-infrared tissue ablation with a free electron laser (FEL)

Lasers in Medical Science — Wed, 25 Jan 2012 18:11:34 +0100

Abstract Beneficial medical laser ablation removes material efficiently with minimal collateral damage. A Mark-III free electron laser (FEL), at a wavelength of 6.45 μm has demonstrated minimal damage and high ablation yield in ocular and neural tissues. While this wavelength has shown promise for surgical applications, further advances are limited by the high overhead for FEL use. Alternative mid-infrared sources are needed for further development. We compared the FEL with a 5-μs pulse duration with a Q-switched ZGP-OPO with a 100-ns pulse duration at mid-infrared wavelengths. There were no differences in the ablation threshold of water and mouse dermis with these two sources in spite of the difference in their pulse structures. There was a significant difference i...

The effect of post surface treatments on the bond strength of fiber posts to root surfaces

Lasers in Medical Science — Tue, 24 Jan 2012 18:14:12 +0100

Abstract The aim of the present study was to evaluate the influence of post surface treatment methods on the push-out bond strength of adhesively luted quartz fiber posts. Thirty freshly extracted and endodontically treated human incisor teeth were prepared for quartz fiber posts. The posts were submitted to three different surface treatments (n = 10), including no treatment, 50-µm aluminum-oxide (Al2O3) airborne-particle abrasion and Er:YAG laser (10 Hz, 150 mJ) irradiation. The posts were luted with resin cement. Each root was sectioned perpendicularly to its long axis to create specimens of 1-mm thickness. After the specimens were stored in distilled water at 37°C for 24 h, their push-out bond strength was tested using a universal testing machin...

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Effects of extracorporeal shockwave therapy on nanostructural and biomechanical responses in the collagenase-induced Achilles tendinitis animal model

Lasers in Medical Science — Tue, 24 Jan 2012 18:14:09 +0100

Abstract The aim of this study was to quantitatively investigate the effects of extracorporeal shockwave therapy (ESWT) on the nanostructure and adhesion force of collagen fibrils in a rat model of collagenase-induced Achilles tendinitis (CIAT) using histology and atomic force microscopy. A total of 45 rats were divided into experimental groups of three rats each: a control group, 27 CIAT rats with nine time points, and 15 ESWT rats with five time points. Progressive changes in nanostructure including the fibrillary diameter and D-periodicity, and biomechanical properties including the fibrillary adhesion forces in each healing phase were investigated over a 5-week period after collagenase injection. On postoperative day 3, CIAT rats showed granulomatous tissue associ...

Evidence of 5-aminolevulinic acid (ALA) penetration increase due to microdrilling in soft tissue using femtosecond laser ablation

Lasers in Medical Science — Tue, 24 Jan 2012 07:17:34 +0100

Abstract Photodynamic therapy (PDT) is a therapeutic technique mainly applied to the treatment of malignant and pre-malignant lesions, which induces cell death by the combined effect of a photosensitizer, irradiation in a proper wavelength, and molecular oxygen. One of the main limitations of PDT using 5-aminolevulinic acid (ALA) is the superficial volume of treatment, mainly due to the limited penetration of topical photosensitization. In this context, the present study investigates if a laser micromachining producing microchannels on the tissue surface could improve ALA penetration and result in an increase in the treatment depth. The laser micromachining under femtosecond regime was performed on the tissue surface of rat livers. Conventional PDT was applied and the indu...

Dormant but migratory tumour cells in desmoplastic stroma of invasive ductal carcinomas

Clinical and Experimental Metastasis — Tue, 24 Jan 2012 06:54:48 +0100

This study has important connotations for a role of SPCs in local recurrence. Content Type Journal ArticleCategory Research PaperPages 1-20DOI 10.1007/s10585-011-9450-4Authors Vanisri Raviraj, Australian Centre for Microscopy and Microanalysis (ACMM), AMMRF, The University of Sydney, Madsen Building F09, Room 243, Sydney, NSW 2006, AustraliaHui Zhang, Australian Centre for Microscopy and Microanalysis (ACMM), AMMRF, The University of Sydney, Madsen Building F09, Room 243, Sydney, NSW 2006, AustraliaHsin-ya Chien, Australian Centre for Microscopy and Microanalysis (ACMM), AMMRF, The University of Sydney, Madsen Building F09, Room 243, Sydney, NSW 2006, AustraliaLouise Cole, Advanced Microscopy Facility, Bosch Institute, The University of Sydney, Sydney, NSW 2006, AustraliaErik W. Th...

Effects of a Long‐Pulsed 800‐nm Diode Laser on Axillary Hyperhidrosis: A Randomized Controlled Half‐Side Comparison Study

Dermatologic Surgery — Tue, 24 Jan 2012 05:00:00 +0100

ConclusionAlthough we observed a significant decrease in sweat rate on laser‐treated sites, laser epilation was not able to reduce the sweat rate significantly more than on the untreated contralateral side. These results probably indicate a placebo effect rather than a direct therapeutic effect of laser epilation. (Source: Dermatologic Surgery)

Pyogenic Granuloma: Treatment with the 1,064‐nm Long‐Pulsed Neodymium‐Doped Yttrium Aluminum Garnet Laser in 20 Patients

Dermatologic Surgery — Tue, 24 Jan 2012 05:00:00 +0100

ConclusionWhen used with the right strategy and patient cohort, the long‐pulse 1,064‐nm Nd:YAG laser is an effective, low‐risk, minimally invasive method of treating PyG. This type of laser is a good therapeutic option that achieves good cosmetic results, particularly in PyG with a large diameter that are not suitable for treatment using the pulsed dye laser. (Source: Dermatologic Surgery)

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Photocoagulation of dermal blood vessels with multiple laser pulses in an in vivo microvascular model

Lasers in Surgery and Medicine — Tue, 24 Jan 2012 05:00:00 +0100

ConclusionsThe MLP approach can induce blood vessel photocoagulation at much lower RE per pulse as compared to SLP. The 5 Hz fr and the need for two pulses are achievable with modern laser technology, which makes the MLP approach practical in the clinical management of PWS birthmarks. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

In vivo analysis of laser preconditioning in incisional wound healing of wild‐type and HSP70 knockout mice with Raman spectroscopy

Lasers in Surgery and Medicine — Tue, 24 Jan 2012 05:00:00 +0100

ConclusionsThe data herein supports the theory that HSP70 is involved in normal skin protein configuration and the cellularity of early wound healing. Laser preconditioning extends cellular trends in the presence of HSP70. Despite study limitations, RS provided a non‐invasive method for quantifying temporal trends in altered wound healing, narrowing candidates and design for future studies with clinically applicable instrumentation. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Experimental Contacts May Ease Pain After Laser Eye Surgery

MedicineNet Eyesight General — Mon, 23 Jan 2012 07:00:00 +0100

Title: Experimental Contacts May Ease Pain After Laser Eye SurgeryCategory: Health NewsCreated: 1/21/2012 11:00:00 AMLast Editorial Review: 1/23/2012 (Source: MedicineNet Eyesight General)

A Randomized Controlled Trial of Fractional Laser Therapy and Dermabrasion for Scar Resurfacing

Dermatologic Surgery — Mon, 23 Jan 2012 05:00:00 +0100

ConclusionFractionated CO2 laser therapy should be considered a safe alternative for surgical scar resurfacing on the face. The safety profile exceeds that of dermabrasion, and it has a quicker clinical recovery and equivalent cosmetic efficacy. (Source: Dermatologic Surgery)

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Pulsed Dye Laser and Pulsed Dye Laser–Mediated Photodynamic Therapy in the Treatment of Dermatologic Disorders

Dermatologic Surgery — Mon, 23 Jan 2012 05:00:00 +0100

ConclusionsPDL is accepted as first‐line therapy for vascular disorders including port‐wine stains, telangiectasias, and hemangiomas. PDL causes selective photothermolysis of dermal vasculature. This mechanism also allows it to be applicable for disorders of other etiologies. Recent studies suggest that the PDL may induce cytokine expression and collagen formation, further increasing its applicability in dermatology. (Source: Dermatologic Surgery)

Hand Rejuvenation: A Review and Our Experience

Dermatologic Surgery — Mon, 23 Jan 2012 05:00:00 +0100

ConclusionReview of the literature revealed options for minimally invasive treatment for rejuvenation of the skin and volume restoration of the dorsal hand. These treatments include injectables and fat transfer for volume restoration; sclerotherapy or vein ablation for dorsal hand vein treatment; and chemical peels, lasers, light, and energies for the treatment of epidermal and dermal changes. (Source: Dermatologic Surgery)

Periorbital Rejuvenation with Fractional 1,550‐nm Ytterbium/Erbium Fiber Laser and Variable Square Pulse 2,940‐nm Erbium:YAG laser in Asians: A Comparison Study

Dermatologic Surgery — Mon, 23 Jan 2012 05:00:00 +0100

ConclusionFractional Yb/Er fiber and VSP Er:YAG lasers are effective in improving periorbital wrinkles in Asians, with minimal side effects. (Source: Dermatologic Surgery)

Hyperglycaemia emerging during general anaesthesia induces rat acute kidney injury via impaired microcirculation, augmented apoptosis and inhibited cell proliferation

Nephrology — Sat, 21 Jan 2012 12:52:13 +0100

Conclusion: Anaesthesia‐induced hyperglycaemia affects intra‐renal auto‐regulation via decreased renal perfusion, thus triggering renal function deterioration and tubular injury. Increased intra‐renal Angiotensin‐II aggravates the damage. Tight hypoglycaemic control might prevent or, at least, attenuate anaesthesia‐induced renal injury. (Source: Nephrology)

The Ritacca Laser & Cosmetic Surgery Center, Now Offering New...

PRWeb: Medical Pharmaceuticals — Sat, 21 Jan 2012 05:56:11 +0100

The Ritacca Laser & Cosmetic Surgery Center is thrilled to be offering Allumera as a new photodynamic cosmetic treatment that produces dynamic results for timeless skin and offers a new way for...(PRWeb January 18, 2012)Read the full story at http://www.prweb.com/releases/2012/1/prweb9106439.htm (Source: PRWeb: Medical Pharmaceuticals)

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Experimental Contacts May Ease Pain After Laser Eye Surgery

WebMD Health — Fri, 20 Jan 2012 22:06:39 +0100

Researchers are developing contact lenses that may one day deliver pain killing drugs directly to the cornea after laser eye surgery. (Source: WebMD Health)

Extended Pain Relief For Laser Eye Surgery Patients Via Contact Lenses

Health News from Medical News Today — Fri, 20 Jan 2012 08:00:00 +0100

Scientists are reporting development of contact lenses that could provide a continuous supply of anesthetic medication to the eyes of patients who undergo laser eye surgery - an advance that could relieve patients of the burden of repeatedly placing drops of medicine into their eyes every few hours for several days. Their report appears in ACS' journal Langmuir. Anuj Chauhan and colleagues explain that more than 1 million laser eye correction procedures are performed each year in the U.S. The surgery enables most patients to see clearly without eye glasses or contact lenses... (Source: Health News from Medical News Today)

CO2 laser surgery in elderly patients with glottic carcinoma: Univariate and multivariate analyses of results

Head and Neck — Fri, 20 Jan 2012 05:00:00 +0100

Low-Level Laser Irradiation Affects the Release of Basic Fibroblast Growth Factor (bFGF), Insulin-Like Growth Factor-I (IGF-I), and Receptor of IGF-I (IGFBP3) from Osteoblasts

Photomedicine and Laser Surgery — Thu, 19 Jan 2012 04:11:48 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Contact lenses provide extended pain relief to laser eye surgery patients

ScienceDaily Headlines — Wed, 18 Jan 2012 16:20:20 +0100

Scientists are reporting development of contact lenses that could provide a continuous supply of anesthetic medication to the eyes of patients who undergo laser eye surgery -- an advance that could relieve patients of the burden of repeatedly placing drops of medicine into their eyes every few hours for several days. (Source: ScienceDaily Headlines)

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Comparison of diode laser-assisted surgery and conventional surgery in the management of hereditary ankyloglossia in siblings: a case report with scientific review

Lasers in Medical Science — Wed, 18 Jan 2012 06:59:05 +0100

This article addresses the management of hereditary ankyloglossia using the diode laser and conventional surgery in siblings. Content Type Journal ArticleCategory Original ArticlePages 1-6DOI 10.1007/s10103-011-1047-2Authors S. Elanchezhiyan, Department of Periodontia, KSR Institute of Dental Sciences & Research, KSR Kalvinagar, Tiruchengode, Tamil Nadu 637215, IndiaR. Renukadevi, Department of Periodontia, KSR Institute of Dental Sciences & Research, KSR Kalvinagar, Tiruchengode, Tamil Nadu 637215, IndiaK. Vennila, Department of Periodontia, JKK Nataraja Dental College, NH 47, Komarapalayam, Namakkal, 638183 India Journal Lasers in Medical ScienceOnline ISSN 1435-604XPrint ISSN 0268-8921 (Source: Lasers in Medical Science)

GreenLight HPS™ 120‐W laser vaporization vs transurethral resection of the prostate (

BJU International — Wed, 18 Jan 2012 05:00:00 +0100

CONCLUSIONS• Bladder storage symptoms may represent a major concern, although they are of limited duration in patients undergoing PVP.• High‐power PVP can achieve and maintain the same results as TURP over a period of 24 months. (Source: BJU International)

Fluorescence spectroscopy as a tool to detect and evaluate glucocorticoid-induced skin atrophy

Lasers in Medical Science — Tue, 17 Jan 2012 07:17:27 +0100

Abstract Topical glucocorticoid (GC) therapy has been successfully used in the treatment of several common cutaneous diseases in clinical practice for a long time, and skin atrophy is one of the most typical cutaneous side effects of this therapy. The aim of this study was to evaluate the potential of noninvasive fluorescence spectroscopy (FS) technique in the detection and classification of GC-induced skin atrophy. A total of 20 male Wistar rats were used in the experimental protocol under controlled environmental conditions and with free access to food. One group received topical application of clobetasol propionate 0.05% for 14 days to induce cutaneous atrophy (atrophic group) and the other (control) group received only vehicle application following the same protoc...

Treatment of Anetoderma Occurring After Resolution of Stevens–Johnson Syndrome Using an Ablative 10,600‐nm Carbon Dioxide Fractional Laser

Dermatologic Surgery — Tue, 17 Jan 2012 05:00:00 +0100

(Source: Dermatologic Surgery)

Surgical Management of Auricular Infantile Hemangiomas [Original Article]

Archives of Otolaryngology — Mon, 16 Jan 2012 05:00:00 +0100

Conclusions Most infantile hemangiomas do not require treatment. Surgical excision of auricular infantile hemangiomas at any phase is effective in preventing fibrofatty scarring, reducing cartilage deformities, and treating complicated cases or patients who have failed medical management. Surgical excision with Z-plasty reconstruction is a viable option that should be considered to limit postoperative deformities. (Source: Archives of Otolaryngology)

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Supraglottoplasty for Occult Laryngomalacia to Improve Obstructive Sleep Apnea Syndrome [Original Article]

Archives of Otolaryngology — Mon, 16 Jan 2012 05:00:00 +0100

Conclusion Supraglottoplasty is an effective technique for the treatment of OSAS associated with occult laryngomalacia. (Source: Archives of Otolaryngology)

Consensus Guidelines for the Management of Plaque Psoriasis [Consensus Statement]

Archives of Dermatology — Mon, 16 Jan 2012 05:00:00 +0100

The Canadian Guidelines for the Management of Plaque Psoriasis were reviewed by the entire National Psoriasis Foundation Medical Board and updated to include newly approved agents such as ustekinumab and to reflect practice patterns in the United States, where the excimer laser is approved for psoriasis treatment. Management of psoriasis in special populations is discussed. In the updated guidelines, we include sections on children, pregnant patients or pregnant partners of patients, nursing mothers, the elderly, patients with hepatitis B or C virus infections, human immunodeficiency virus–infected patients, and patients with malignant neoplasms, as well as sections on tumor necrosis factor blockers, elective surgery, and vaccinations. (Source: Archives of Dermatology)

Comparable Effectiveness of Endovenous Laser Ablation and High Ligation With Stripping of the Great Saphenous Vein: Two-Year Results of a Randomized Clinical Trial (RELACS Study) [Study]

Archives of Dermatology — Mon, 16 Jan 2012 05:00:00 +0100

Conclusions Both EVLT and HLS are comparably safe and effective procedures to treat GSV incompetence. The significantly higher rate and the course of duplex-detected saphenofemoral recurrences after EVLT remain a matter of further investigations. Trial Registration isrctn.org Identifier: ISRCTN18322872 (Source: Archives of Dermatology)

Laser Facial Nerve Welding in a Rabbit Model [Original Article]

Archives of Facial Plastic Surgery — Mon, 16 Jan 2012 05:00:00 +0100

Conclusions This pilot study demonstrates that laser nerve welding may be an expedient, feasible, and safe method for facial nerve repair in a rabbit model. Further experiments with larger numbers are needed to provide additional evidence that laser tissue welding produces a neurorrhaphy that has functional, electrophysiological, and histological results that could rival traditional suture neurorrhaphy. (Source: Archives of Facial Plastic Surgery)

Multifunctional Gold Nanorods for Targeted Drug Delivery To Carcinoids

Journal of Surgical Research — Sat, 14 Jan 2012 22:29:05 +0100

Conclusions: We have developed a multifunctional, pH-responsive and tumor-targeting gold nanorod-based nanoplatform for anticancer drug therapy. We demonstrated that the presence of the surface ligand Oct increased the cellular uptake of NPs (Au-DOX-Oct) substantially in a BON cell line compared to the non-targeted NPs (Au-DOX). Additionally, the targeting ligand sped up the intracellular transport making these NPs more efficient in reaching the nuclei of cancer cells. Thus, targeted delivery of anticancer drug (DOX) specifically to the tumor tissue could achieve therapeutic outcomes in treating carcinoid disease. Therefore, these NPs require further preclinical investigation so that the targeted nanoparticles may provide a successful delivery system of therapeutic agents specifically to t...

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Comparison of the Effects of Human β-defensin 3, Vancomycin, and Clindamycin on Staphylococcus aureus Biofilm Formation.

Orthopedics — Sat, 14 Jan 2012 15:24:05 +0100

Authors: Huang Q, Yu HJ, Liu GD, Huang XK, Zhang LY, Zhou YG, Chen JY, Lin F, Wang Y, Fei J Abstract Despite improvements in surgical techniques and implant design in orthopedic surgery, implantation-associated infections are still a challenging problem for surgeons. In 2006, trace quantities of human β-defensin 3 (hBD-3) were found in human bone tissue and bone cells. Human β-defensin 3 is a 45-amino-acid peptide that is considered the most promising class of defensin antimicrobial peptides and may help in the prevention and treatment of implantation-associated infections. Studies of the effectiveness of hBD-3 against Staphylococcus aureus showed that hBD-3 was more potent at low concentrations than other antibiotics. The effect of hBD-3 on S aureus biofilms has not been reporte...

Pathological Findings of Thyroid Nodules After Percutaneous Laser Ablation

Endocrine Pathology — Fri, 13 Jan 2012 16:56:11 +0100

Abstract Ultrasound (US)-guided percutaneous laser ablation (LA) of benign thyroid nodules may be a potential alternative to surgery in patients with compressive symptoms, at high surgical risk, or in patients who refuse to undergo surgery. We evaluated the morphological effects of LA procedure on 22 patients and compared the cytological findings before and after LA with the histological features on surgical specimens. Twenty-two (4.9%; 19 women, three men, mean age 53.2 years) out of 452 patients treated with LA for benign thyroid nodules in our Hospital underwent surgery after LA procedure, either because nodule regrowth (treatment failure, n = 17) or indeterminate cytology (Thy3) after LA (n = 5). Morphological findings varied according to the time between L...

Topical Anesthetics for Dermatologic Procedures: A Review

Dermatologic Surgery — Fri, 13 Jan 2012 05:00:00 +0100

ConclusionsLidocaine‐containing products play an integral role in cutaneous anesthesia by providing patient comfort with minimal side effects. Careful attention must be paid to the particular anatomic location, the total surface area covered, and the duration of anesthetic skin contact. (Source: Dermatologic Surgery)

Platelet rich plasma improves the healing process after airway anastomosis,

Interactive CardioVascular and Thoracic Surgery — Thu, 12 Jan 2012 05:00:00 +0100

This study investigated whether platelet-rich plasma (PRP) promotes healing and reduces anastomotic complications following airway surgery in a pig model. PRP was obtained by spinning down the animal's own blood (60 ml) and collecting the buffy coat containing platelets and white blood cells. Fifteen adult pigs were randomized into three groups: (1) sham treatment (cervicotomy), (2) non-PRP group (50% tracheal resection and end-to-end anastomosis), and (3) PRP group (50% tracheal resection, end-to-end anastomosis and PRP application). Blood samples were taken at baseline and at one, six and 24 . Animals were monitored for anastomotic complications, infection and local reactivity. Laser Doppler flowmetry was performed intraoperatively and at 30 days to assess differences in p...

Treatment of infantile hemangiomas with the 595‐nm pulsed dye laser using different pulse widths in an asian population

Lasers in Surgery and Medicine — Thu, 12 Jan 2012 05:00:00 +0100

ConclusionBoth short and long pulse durations using moderately high fluences are equally effective in the treatment of infantile hemangiomas. Shorter pulse durations had a slightly higher incidence of side effects compared to longer pulse duration in our patients with darker phototypes. Hemangiomas are tumors with relatively large diameter blood vessels and this provides the basis for the use of longer pulse durations. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

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Optimal wavelengths for vein‐selective photothermolysis

Lasers in Surgery and Medicine — Thu, 12 Jan 2012 05:00:00 +0100

ConclusionPreferential photocoagulation of venous blood is possible at wavelengths with a high Hb/HbO2 absorption coefficient ratio. Laser‐induced metHb may also affect wavelength‐dependent selective photothermolysis. Venular malformations such as port wine stains could potentially be treated more selectively with ∼630–780 nm sources. Nd:YAG laser pulses at 1,064 nm tend to affect arterial more than venous blood. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Real‐time guidance of thermal and ultrashort pulsed laser ablation in hard tissue using inline coherent imaging

Lasers in Surgery and Medicine — Thu, 12 Jan 2012 05:00:00 +0100

ConclusionsICI can be used as non‐contact real‐time feedback to monitor the depth of an incision created by laser ablation, especially in heterogeneous tissue where ablation rate is less predictable. Furthermore, ICI can image below the ablation front making it possible to stop laser exposure to limit unintentional damage to subsurface structures such as blood vessels or nervous tissue. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Low-Level Laser Irradiation Affects the Release of Basic Fibroblast Growth Factor (bFGF), Insulin-Like Growth Factor-I (IGF-I), and Receptor of IGF-I (IGFBP3) from Osteoblasts

Photomedicine and Laser Surgery — Thu, 12 Jan 2012 04:10:41 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Cartilage labelling for mechanical testing in T-peel configuration

International Orthopaedics — Wed, 11 Jan 2012 17:53:22 +0100

Conclusion Labelling bovine cartilage samples with Indian ink in biomechanical testing is a reliable, accurate, inexpensive, and easy-to-perform method. This labelling method influenced neither the biomechanical behaviour nor the viability of the tissue compared to untreated bovine cartilage. Content Type Journal ArticleCategory Original PaperPages 1-7DOI 10.1007/s00264-011-1468-3Authors Christian Pfeifer, Department of Orthopedics and Trauma Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, GermanyMichael Müller, Department of Orthopedics and Trauma Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, GermanyLukas Prantl, Department of Orthopedics and Trauma Surgery, University Hospital Reg...

Radial intrastromal femtosecond laser incisions for myopia correction

Graefe's Archive for Clinical and Experimental Ophthalmology — Wed, 11 Jan 2012 17:50:58 +0100

Content Type Journal ArticleCategory Letter to the EditorPages 1-2DOI 10.1007/s00417-011-1915-2Authors Zhen-Yong Zhang, Department of Ophthalmology, Putuo Hospital, Shanghai Chinese Traditional Medicine University, Shanghai, ChinaMatthew R. Hoffman, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USAXing-Ru Zhang, Department of Ophthalmology, Putuo Hospital, Shanghai Chinese Traditional Medicine University, Shanghai, China Journal Graefe's Archive for Clinical and Experimental OphthalmologyOnline ISSN 1435-702XPrint ISSN 0721-832X (Source: Graefe's Archive for Clinical and Experimental Ophthalmology)

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New Clinical Approach for Use of Er:YAG Laser in the Surgical Treatment of Oral Lichen Planus: A Report of Two Cases

Photomedicine and Laser Surgery — Wed, 11 Jan 2012 17:38:13 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Low-Level Laser Therapy Improves Visual Acuity in Adolescent and Adult Patients with Amblyopia

Photomedicine and Laser Surgery — Wed, 11 Jan 2012 17:36:27 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Effects of a Therapeutic Laser and Passive Stretching Program for Treating Tendon Overuse

Photomedicine and Laser Surgery — Wed, 11 Jan 2012 17:36:17 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Low Level Laser Therapy (LLLT) and World Association for Laser Therapy (WALT) Dosage Recommendations

Photomedicine and Laser Surgery — Tue, 10 Jan 2012 20:41:34 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Effect of Adjunctive Low Level Laser Therapy (LLLT) on Nonsurgical Treatment of Chronic Periodontitis

Photomedicine and Laser Surgery — Tue, 10 Jan 2012 20:41:31 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Interleukin-1 receptor role in the viability of corneal myofibroblasts.

Experimental Eye Research — Tue, 10 Jan 2012 05:00:00 +0100

Authors: Barbosa FL, Lin M, Santhiago MR, Singh V, Agrawal V, Wilson SE Abstract The purpose of this study was to investigate the role of interleukin-1 (IL-1) in modulating myofibroblast viability in mouse corneas with stromal opacity. Twenty-four female B6; 129S1-Il1r1tm1Roml/J homozygous IL-1RI knockout mice and 24 control B6129SF2/J mice were included in this study. Each mouse had opacity-generating irregular phototherapeutic keratectomy (PTK) performed with an excimer laser in one eye. Groups of 8 mice from each group were euthanized at one month, three months and six months after surgery and the eyes cryo-preserved. The contralateral eye served as unwounded control. Immunohistochemistry was performed for α-smooth muscle actin (SMA) in central sections of all corneas. The TUNE...

Tracheal laceration after laser ablation of nodular goitre

Interactive CardioVascular and Thoracic Surgery — Mon, 09 Jan 2012 05:00:00 +0100

A tracheal perforation was discovered after Nd-YAG laser thermal ablation (LTA) of a thyroid nodule. The LTA is a relatively new method of treatment of thyroid nodules, which consists of delivering laser energy into the thyroid by means of two optical fibres. The patient presented with a multinodular goitre and initially refused surgery, then underwent an LTA of a thyroid nodule. Fifty days after the procedure she started to have symptoms related to a tracheal stenosis and, after tracheoscopy, a tracheal perforation was diagnosed and she underwent a total thyroidectomy plus tracheal repair. The results of the histological examination revealed a goitre with a focal area of papillary carcinoma. This particular complication is likely the first of its kind to be described after the LTA of a th...

When Is More Treatment Needed for Infantile Hemangiomas?

PediatricEducation.org — Mon, 09 Jan 2012 00:30:57 +0100

Discussion Infantile hemangiomas (IH) are the most common soft tissue tumors in infants. They are usually considered birthmarks but are dynamic lesions. They usually begin in the first few weeks of life and rapidly grow in the first 3-5 months of life. By 5 months, most lesions will have achieved 80% of their final size. Almost all IH have cessation of growth after 9 month of age. Images of IH can be seen in the To Learn More section below. Learning Point Often no treatment is necessary for IH other than expectant monitoring. Additional treatment may be necessary depending on the patient’s age, lesion type, location, size and complication being considered. The results of a prospective cohort of 1058 children in 7 pediatric dermatology clinics found that overall 24% of patients had c...

Expression of myelin basic protein in the human auditory nerve—An immunohistochemical and comparative study

Auris, Nasus, Larynx — Sun, 08 Jan 2012 20:04:33 +0100

Conclusions: The pattern of myelination in human spiral ganglion is different from that in other species’ spiral ganglion. The striking differences in myelin outline should be investigated further in combination with its influence on signal coding and preservation properties in man. (Source: Auris, Nasus, Larynx)

Pulsed dye laser treatment with different onset times for new surgical scars: a single-blind randomized controlled trial

Lasers in Medical Science — Sat, 07 Jan 2012 16:55:39 +0100

Content Type Journal ArticleCategory Brief ReportPages 1-4DOI 10.1007/s10103-011-1044-5Authors Parastoo Davari, Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, 415 Taleghani Ave, Tehran, 14166 IranFarzam Gorouhi, Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, 415 Taleghani Ave, Tehran, 14166 IranPantea Hashemi, Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, 415 Taleghani Ave, Tehran, 14166 IranFereydoun Behnia, Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, 415 Taleghani Ave, Tehran, 14166 IranAfsaneh Ghassemi, Tehran University of Medical Sciences, 83 Mostaghimi Alley, ...

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Overall-Mouth Disinfection by Photodynamic Therapy Using Curcumin

Photomedicine and Laser Surgery — Sat, 07 Jan 2012 04:09:51 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Immediate Effects of Monochromatic Infrared Energy on Microcirculation in Healthy Subjects

Photomedicine and Laser Surgery — Thu, 05 Jan 2012 21:54:09 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Case reports on the potential of fractional laser-assisted photodynamic therapy for basal cell carcinomas

Lasers in Medical Science — Thu, 05 Jan 2012 17:06:09 +0100

Content Type Journal ArticleCategory Brief ReportPages 1-3DOI 10.1007/s10103-011-1041-8Authors Merete Haedersdal, Department of Dermatology D42, Bispebjerg University Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, DenmarkKatrine Togsverd-Bo, Department of Dermatology D42, Bispebjerg University Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, DenmarkUwe Paasch, Department for Dermatology, Venerology and Allergology, University of Leipzig, Leipzig, Germany Journal Lasers in Medical ScienceOnline ISSN 1435-604XPrint ISSN 0268-8921 (Source: Lasers in Medical Science)

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Effects of light emitting diode (LED) therapy and cold water immersion therapy on exercise-induced muscle damage in rats

Lasers in Medical Science — Thu, 05 Jan 2012 17:06:08 +0100

Abstract The aim of this work is to analyze the effects of LED therapy at 940 nm or cold water immersion therapy (CWI) after an acute bout of exercise on markers of muscle damage and inflammation. Thirty-two male Wistar rats were allocated into four groups: animals kept at rest (control), exercised animals (E), exercised + CWI (CWI), and exercised + LED therapy (LED). The animals swam for 100 min, after which blood samples were collected for lactate analysis. Animals in the E group were returned to their cages without treatment, the CWI group was placed in cold water (10°C) for 10 min and the LED group received LED irradiation on both gastrocnemius muscles (4 J/cm2 each). After 24 h, the animals were killed and the soleus muscles were submitted to histological an...

Long-term results of ablation with antireflux surgery for Barrett’s esophagus: a clinical and molecular biologic study

Surgical Endoscopy — Thu, 05 Jan 2012 06:49:56 +0100

Conclusions The neosquamous mucosa, generated by the ablation of BE and the treatment of GERD with fundoplication, was stable during long-term follow-up evaluation in two-thirds of the patients with initial eradication. It had normal p53 expression and no Cdx2 protein expression. The oxidative stress of the neosquamous esophagus remained high, although the clinical significance of this is unclear. Content Type Journal ArticlePages 1-6DOI 10.1007/s00464-011-2121-3Authors Tuuli Kauttu, Division of General Thoracic and Esophageal Surgery, Helsinki University Central Hospital, Haartmaninkatu 4, PO Box 340, 00029 HUS Helsinki, FinlandJari Räsänen, Division of General Thoracic and Esophageal Surgery, Helsinki University Central Hospital, Haartmaninkatu 4, PO Box 340, 0...

Nifedipine Ameliorates Ischemia-Induced Revascularization in Diet-Induced Obese Mice.

American Journal of Hypertension — Thu, 05 Jan 2012 05:00:00 +0100

ConclusionsOur observations demonstrated that DIO impaired revascularization in response to tissue ischemia. Nifedipine ameliorated obesity-impaired revascularization through suppressing oxidative stress and enhancing the number of EPCs.American Journal of Hypertension 2011; doi:10.1038/ajh.2011.239. PMID: 22223040 [PubMed - as supplied by publisher] (Source: American Journal of Hypertension)

Consider Antibiotics, Laser Surgery for Hidradenitis SuppurativaConsider Antibiotics, Laser Surgery for Hidradenitis Suppurativa

Medscape Dermatology Headlines — Thu, 05 Jan 2012 03:00:35 +0100

Clindamycin with either carbon dioxide or Nd:YAG laser treatments should be considered first-line therapies for mild-to-moderate hidradenitis suppurativa. Reuters Health Information (Source: Medscape Dermatology Headlines)

Rhegmatogenous retinal detachment after LASIK for myopia of up to –10 diopters: 10 years of follow-up

Graefe's Archive for Clinical and Experimental Ophthalmology — Wed, 04 Jan 2012 16:59:56 +0100

Conclusions Rhegmatogenous retinal detachment after LASIK for the correction of myopia ≤ –10.00 D is infrequent. The risk of RRD after LASIK is very low if you screen patients, and do prophylactic treatment as performed in this study. RRD, if managed promptly, will result in good vision. We recommend that patients scheduled for refractive surgery undergo a very thorough dilated indirect funduscopy with scleral depression and treatment of any retinal lesion predisposing to the development of a RRD before LASIK surgery should be performed. Content Type Journal ArticleCategory Retinal DisordersPages 1-8DOI 10.1007/s00417-011-1907-2Authors J. Fernando Arevalo, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USAAndres F. Lasave, Th...

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The Plasma Membrane is Involved in the Visible Light–Tissue Interaction

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:40:14 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 14-19. (Source: Photomedicine and Laser Surgery)

The Efficacy of Er,Cr:YSGG Laser in Reconditioning of Metallic Orthodontic Brackets

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:40:11 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 41-46. (Source: Photomedicine and Laser Surgery)

Laser Dentistry, Current Advantages, and Limits

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:40:02 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 1-4. (Source: Photomedicine and Laser Surgery)

Vitiligo Treatment with Monochromatic Excimer Light and Tacrolimus: Results of an Open Randomized Controlled Study

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:40:01 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 26-30. (Source: Photomedicine and Laser Surgery)

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Photodynamic Therapy with Indocyanine Green Injection and Near-Infrared Light Irradiation Has Phototoxic Effects and Delays Paralysis in Spinal Metastasis

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:39:54 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 47-53. (Source: Photomedicine and Laser Surgery)

Topical Grape Seed Proanthocyandin Extract Reduces Sunburn Cells and Mutant p53 Positive Epidermal Cell Formation, and Prevents Depletion of Langerhans Cells in an Acute Sunburn Model

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:39:51 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 20-25. (Source: Photomedicine and Laser Surgery)

Early Surgical Laser-Assisted Management of Bisphosphonate-Related Osteonecrosis of the Jaws (BRONJ): A Retrospective Analysis of 101 Treated Sites with Long-Term Follow-Up

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:39:43 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 5-13. (Source: Photomedicine and Laser Surgery)

670 nm Laser Light and EGCG Complementarily Reduce Amyloid-β Aggregates in Human Neuroblastoma Cells: Basis for Treatment of Alzheimer's Disease?

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:39:38 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 54-60. (Source: Photomedicine and Laser Surgery)

Direct Cholangioscopy-Based Holmium Laser Lithotripsy of Difficult Bile Duct Stones by Using an Ultrathin Upper Endoscope Without a Separate Biliary Irrigating Catheter

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:39:35 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 31-36. (Source: Photomedicine and Laser Surgery)

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The Effect of 670-nm Low Laser Therapy on Herpes Simplex Type 1

Photomedicine and Laser Surgery — Wed, 04 Jan 2012 15:39:32 +0100

Photomedicine and Laser Surgery Jan 2012, Vol. 30, No. 1: 37-40. (Source: Photomedicine and Laser Surgery)

Subcutaneous adipose tissue blood flow and vasomotion in morbidly obese patients: Long term effect of gastric bypass surgery.

Clinical Hemorheology and Microcirculation — Tue, 03 Jan 2012 05:00:00 +0100

Authors: Rossi M, Nannipieri M, Anselmino M, Guarino D, Franzoni F, Pesce M Abstract Since recent findings suggest a relationship between reduction in adipose tissue blood flow and metabolic or vascular complications of obesity, increase in ATBF may be considered as a further goal in the treatment of obesity, besides fat mass reduction. Therefore, this preliminary study aimed at assess subcutaneous ATBF and vasomotion in morbidly obese patients (Ob-pts) and whether sustained weight loss induced by Roux-en-Y gastric bypass (RYGB) affects the same parameters. Using laser-Doppler flowmetry (LDF) and spectral Fourier analysis, subcutaneous ATBF was measured and subcutaneous ATBF oscillations (ATBF-O) were analyzed in 16 Ob-pts, before and about one year after RYGB, and in 10 lean, heal...

Attenuating effect of post-treatment with QiShenYiQi Pills on myocardial fibrosis in rat cardiac hypertrophy.

Clinical Hemorheology and Microcirculation — Tue, 03 Jan 2012 05:00:00 +0100

Authors: Li YC, Liu YY, Hu BH, Chang X, Fan JY, Sun K, Wei XH, Pan CS, Huang P, Chen YY, Wang CS, Zheng J, Han JY Abstract QiShenYiQi Pills® (QSYQ) is a compound Chinese medicine used for treatment of cardiovascular diseases. However, the potential of QSYQ to inhibit cardiac fibrosis in left ventricle hypertrophy is not explored to date. We investigated the effects of post-treatment QSYQ on rat myocardial fibrosis in left ventricle hypertrophy induced by pressure over-load through ascending aortic stenosis. QSYQ was administrated 4 weeks after the surgery, at a dose of 0.8 g/kg/day over the next 4 weeks, while echocardiography was performed 4 and 8 weeks, respectively, after the surgery. Eight weeks after the surgery, myocardial blood flow was determined by Laser-Doppler Perfusion...

Sm^3+-doped germanate glass channel waveguide as light source for minimally invasive photodynamic therapy surgery

Optics Express — Tue, 03 Jan 2012 05:00:00 +0100

In Sm^3+-doped K^+–Na^+ ion-exchanged aluminum germanate (NMAG) glass channel waveguide, a clear and compact red amplified spontaneous emission (ASE) trace is observed under the excitation of a 488nm Ar^+ laser. 78% photons of ASE fluorescence in visible region are demonstrated to be located ... (Source: Optics Express)

Enhancement of photodynamic antitumor effect with pro‐oxidant ascorbate

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

ConclusionBased on the results that PDT induces metal ion release and ascorbate reacts with the metal ions producing subsequent ROS, an internal related, complementary and strengthened tumor treatment is established by combination of both PDT and ascorbate, as a low‐toxicity and effective method. Lasers Surg. Med. © 2011 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

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Combined two‐photon luminescence microscopy and OCT for macrophage detection in the hypercholesterolemic rabbit aorta using plasmonic gold nanorose

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

ConclusionsResults suggest that TPL microscopy combined with OCT can simultaneously reveal macrophage distribution with respect to aorta surface structure, which has the potential to detect vulnerable plaques and monitor plaque‐based macrophages overtime during cardiovascular interventions. Lasers Surg. Med. © 2011 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Diagnostic efficacy of backscattering intensity measurements in optical coherence tomography of cervical intraepithelial dysplasia

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

ConclusionsThe systematic differences between histology‐based and OCT‐based diagnoses suggest that the use of available information is influenced by perceptual and/or cognitive biases. Apart from this it seems that the profiles appear to provide a remarkably large amount of information determining the main course of the diagnostic process. Lasers Surg. Med. © 2011 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

An in vivo histopathological comparison of single and double pulsed modes of a fractionated CO2 laser

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

This study looks at the effect of double pulse fractional CO2 laser compared to single pulse treatments to assess differences in tissue injury in the face and abdomen.MethodsTwelve healthy subjects randomized into two groups, had two 1 cm2 areas (infraumbilical and forehead) treated with the fractional CO2 laser (Deep Fx, Lumenis). Settings used were 15 mJ double pulse, and 30 mJ single pulse, 300 Hz, 10% density and compared to the historic control of 15 patients treated at 15 mJ single pulse [Bailey et al. (2011), Lasers Surg Med 43: 99–107]. Treated sites were biopsied and analyzed with H&E and TUNEL staining to measure width and depth of the microthermal zones (MTZ) of ablation.ResultsWhen comparing 15 mJ double pulse to single pulse there were significant differences...

Topical steroids implicated in postoperative infection following ablative laser resurfacing

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

(Source: Lasers in Surgery and Medicine)

Successful treatment of melasma using a combination of microdermabrasion and Q‐switched Nd:YAG lasers

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

ConclusionMicrodermabrasion plus low‐fluence QS Nd:YAG laser treatment is a simple, non‐invasive procedure with minimal risk, no recovery time, and long‐lasting remission. Treatment works on all skin phototypes in just two to three treatment sessions. Subject compliance with skin care was excellent, probably due to the dramatic improvement observed within 4 weeks. Lasers Surg. Med. © 2011 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

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The enhanced anti‐cancer effect of hexenyl ester of 5‐aminolaevulinic acid photodynamic therapy in adriamycin‐resistant compared to non‐resistant breast cancer cells

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

ConclusionsALA‐hx PDT more potently produced intracellular ROS in MCF‐7/ADR cells, which might be due to down‐regulation of Nrf2‐mediated anti‐oxidant gene transcription and up‐regulation of PpIX synthesis via the induction of CPO and PPO. These findings suggest that ALA‐hx PDT may be usable as a therapeutic alternative for adriamycin‐resistant breast cancer. Lasers Surg. Med. © 2011 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Lentigines, laser, and melanoma: A case series and discussion

Lasers in Surgery and Medicine — Tue, 03 Jan 2012 05:00:00 +0100

We report a series of three patients who presented to our laser center within 2 months of one another for cosmetic removal of pigmented lesions that were found to be melanoma. One patient was referred by another dermatologist, one by a physician family member, and the other presented on his own. These cases highlight the need for careful evaluation of pigmented lesions prior to laser treatment, regardless of the source of the referral. In this article, we will review the diagnostic and treatment differences between lentigines and their malignant counterparts, and examine the role of laser in both. Lasers Surg. Med. © 2011 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Consider antibiotics, laser surgery for hidradenitis suppurativa, review suggests

Modern Medicine — Tue, 03 Jan 2012 05:00:00 +0100

NEW YORK (Reuters Health) - Clindamycin with either carbon dioxide or Nd:YAG laser treatments should be considered first-line therapies for mild-to-moderate hidradenitis suppurativa (HS), according to a new review of treatments for the rare disease. (Source: Modern Medicine)

The new laser surgery that's a real eye-opener

the Mail online | Health — Tue, 03 Jan 2012 00:19:39 +0100

New developments in laser surgery mean many more could be tempted to try it, including thousands who suffer with presbyopia, age-related sight loss. (Source: the Mail online | Health)

Immunohistochemistry of angiogenesis mediators before and after pulsed dye laser treatment of angiomas

Lasers in Surgery and Medicine — Sun, 01 Jan 2012 05:00:00 +0100

ConclusionAlterations in angiogenesis mediators were noted after PDL. Angiogenesis mediator changes associated with PDL treatment differed from those previously reported for incisional biopsies. This pilot study can guide future work on laser‐induced alterations in vascular lesions and such information may ultimately be used to optimize treatment outcomes. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

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Low‐level laser therapy for closed‐head traumatic brain injury in mice: effect of different wavelengths

Lasers in Surgery and Medicine — Sun, 01 Jan 2012 05:00:00 +0100

ConclusionsThe effectiveness of 810 nm agrees with previous publications, and together with the effectiveness of 660 nm and non‐effectiveness of 730 and 980 nm can be explained by the absorption spectrum of cytochrome oxidase, the candidate mitochondrial chromophore in transcranial LLLT. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Long-term morbidity after fetal endoscopic surgery for severe twin-to-twin transfusion syndrome

Journal of Pediatric Surgery — Sun, 01 Jan 2012 05:00:00 +0100

Abstract: Background/Purpose: Severe twin-to-twin transfusion syndrome (TTTS) leads to 80% to 100% dual mortality. Endoscopic laser coagulation of connecting vessels improves outcome to 80% survival of at least 1 twin. There is limited long-term follow-up of surviving TTTS patients. The aim of this study was to analyze gestational age-stratified, long-term morbidity in these patients.Methods: A retrospective case-control study of TTTS surviving patients (38 patients, 72% follow-up rate) from one center. Perinatal and pediatric records were reviewed, and outcomes were compared with published reports and gestational age-matched controls.Results: Forty percent (15/38) had at least 1 major sequela, all but 6 of which were fully resolved at a median follow-up of 4.4 years. There were no permane...

Validation of an ex vivo human cervical tissue model for optical imaging studies

Lasers in Surgery and Medicine — Sun, 01 Jan 2012 05:00:00 +0100

ConclusionWe conclude that the proposed cervical tissue model appears to be applicable for ex vivo OCT studies. Lasers Surg. Med. © 2012 Wiley Periodicals, Inc. (Source: Lasers in Surgery and Medicine)

Takayasu’s retinopathy

International Ophthalmology — Sat, 31 Dec 2011 16:49:03 +0100

We report the case of a 63-year-old woman with Takayasu’s arteritis who experienced progressive visual loss in her right eye (RE) over several months. Visual acuity was 0.4 in the RE, which showed marked retinal arteriovenous dilation and highly irregular arteriolar calibre. She had no light perception in the left eye, which showed diffuse atrophy of the retinal pigment epithelium and prepapillary fibrovascular proliferation. Fluorescein angiography revealed delayed and slow retinal and choroidal circulation and areas of peripheral ischemia. A diagnosis of Takayasu’s retinopathy was made and the non-perfused areas were treated with laser photocoagulation. Takayasu’s disease can result in chronic ocular ischemia. Angiographic examination is particularly important in this context...

KTP Laser in Laryngeal Amyloidosis: Five Cases with Review of Literature

Indian Journal of Otolaryngology and Head and Neck Surgery — Sat, 31 Dec 2011 16:47:34 +0100

We report five patients who presented with hoarseness of voice and localized laryngeal lesions. The biopsy proven laryngeal amyloidosis lesions were excised microendoscopically using KTP 532 laser in three patients and other two patients were kept only on follow-up as they refused further surgery. The patients were evaluated for systemic amyloidosis. The average duration of follow up was 2.6 years (3 months 6 years). All the five patients in our study were asymptomatic with no evidence of recurrence at their last follow up. In our small case series, KTP 532 laser excision of the laryngeal amyloidosis had a favorable outcome. Long term follow up is required to rule out recurrence and systemic involvement. Content Type Journal ArticleCategory Original ArticlePages 1-...

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The ostrich middle ear for developing an ideal ossicular replacement prosthesis

European Archives of Oto-Rhino-Laryngology — Sat, 31 Dec 2011 06:37:14 +0100

Abstract The aim of the study was to investigate the validity of the avian middle ear model for researching the tympanoplasty mechanics. We studied the morphological details, acoustic transmission and quasi-static behavior of the ostrich tympano-ossicular system. The stained specimens of the ostrich middle ear were examined under a light microscope. The sound transfer function and quasi-static performance of the ostrich middle ear were evaluated using laser Doppler vibrometry. The application of pressure to the tip of the extracolumella causes a buckling movement of the ossicle between the cartilaginous and bony parts. Histologically, the intracolumellar connection can be identified as a junction zone between bone and hyaline cartilage. Sound conduction through the human m...

LED (660 nm) and laser (670 nm) use on skin flap viability: angiogenesis and mast cells on transition line

Lasers in Medical Science — Fri, 30 Dec 2011 07:10:10 +0100

The objective of this study was to evaluate the effect of LLLT and LED on the viability of random skin flaps in rats. Forty-eight rats were divided into four groups, and a random skin flap (10 × 4 cm) was performed in all animals. Group 1 was the sham group; group 2 was submitted to LLLT 660 nm, 0.14 J; group 3 with LED 630 nm, 2.49 J, and group 4 with LLLT 660 nm, with 2.49 J. Irradiation was applied after surgery and repeated on the four subsequent days. On the 7th postoperative day, the percentage of flap necrosis was calculated and skin samples were collected from the viable area and from the transition line of the flap to evaluate blood vessels and mast cells. The percentage of necrosis was significantly lower in groups 3 and 4 compared to...

Treatment of Mucosal Vascular Malformations With Variable-Pulse Neodymium:Yttrium-Aluminum-Garnet Laser.

Actas Dermo-Sifiliograficas — Fri, 30 Dec 2011 05:00:00 +0100

CONCLUSIONS: Given its efficacy and ease of use, Nd:YAG may become a treatment of choice for mucosal vascular lesions. Comparative studies are now required to assess its potential superiority over other treatment options. PMID: 22209896 [PubMed - as supplied by publisher] (Source: Actas Dermo-Sifiliograficas)

Comparison of Laser Versus Sclerotherapy in the Treatment of Lower Extremity Telangiectases: A Prospective Study

Dermatologic Surgery — Fri, 30 Dec 2011 05:00:00 +0100

ConclusionLower extremity telangiectases may be treated equally well using Nd:YAG 1064‐nm laser or conventional sclerotherapy. (Source: Dermatologic Surgery)

Randomized Clinical Trial Comparing Two Methods for Endovenous Laser Ablation of Incompetent Perforator Veins in Thigh and Great Saphenous Vein Without Evidence of Saphenofemoral Reflux

Dermatologic Surgery — Fri, 30 Dec 2011 05:00:00 +0100

ConclusionIPVA has clinical results and complications similar to those of GSVA in individuals with C2 and C3 chronic venous disease with IPVs in the thigh combined with incompetent GSV, but its higher technical failure rate makes it difficult to choose it as the primary treatment method. (Source: Dermatologic Surgery)

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Treatment of Actinic Cheilitis Using a 1,927‐nm Thulium Fractional Laser

Dermatologic Surgery — Fri, 30 Dec 2011 05:00:00 +0100

(Source: Dermatologic Surgery)

IMRT, laser surgery improves survival in head/neck cancer

AuntMinnie.com Headlines — Thu, 29 Dec 2011 07:00:00 +0100

The combination of functional resection laser surgery and intensity-modulated (more) (Source: AuntMinnie.com Headlines)

Laser biomodulation of normal and neoplastic cells

Lasers in Medical Science — Wed, 28 Dec 2011 16:49:55 +0100

This study was designed to determine the laser dose for the stimulation, zero-bioactivation, and inhibition of normal and neoplastic cells in vitro. The medical use of laser biomodulation has been occurring for decades in the area of tissue healing and inflammatory conditions. The potential to modulate the regeneration and differentiation of early cellular precursors by laser photons is a valuable endeavor searching for novel and efficient methods. A 35-mW HeNe (632.8-nm) laser and power density of 1.25 mW/cm2 was used to irradiate tissue culture dishes seeded with 400 cells/dish of normal cells (CHO, CCL-226, 3 T3, and HSF) and neoplastic cells (EMT-6 and RIF-1). All cell lines were cultured using DMEM supplemented with 10% and 5% FBS, 2 mM glutamine and 100 U pe...

Neodymium:YAG laser treatment of lower leg telangiectasia: a new minimally invasive approach

Lasers in Medical Science — Wed, 28 Dec 2011 16:49:53 +0100

Abstract The aim of this study was to validate the safety and effectiveness of a new therapeutic procedure for the treatment of lower leg telangiectasia without clinical vein insufficiency. A group of 20 healthy women aged between 24 and 47 years (mean±sem 37.05 ± 1.47) with lower leg telangiectasia without clinical vein insufficiency, previously investigated by echo colour Doppler sonography, were recruited and were treated with neodymium:YAG laser (mean±sem 2.5 ± 0.11 sessions). Good or excellent results were obtained in 16 patients and the improvements were statistically significant (p < 0.01). Out of the 20 patients, 16 were satisfied with the procedure. We strongly support laser treatment of lower leg telangiectasia since it allows injection of ...

Management of a Traumatic Flap Dislocation Seven Years after LASIK

Clinical and Developmental Immunology — Tue, 27 Dec 2011 23:55:03 +0100

Seven years after uneventful laser in situ keratomileusis (LASIK), a 48-year-old woman presented one week after being hit with an iron cord with blurry vision, pain, and irritation. The injury resulted in traumatic flap dislocation, epithelial ingrowth, and macrostriae. Following epithelial removal, the flap was refloated and repositioned. Nine interrupted sutures were used to secure the flap. Three-weeks after surgery with no sutures remaining, the epithelial ingrowth and macrostriae had resolved with a visual acuity of 20/20. (Source: Clinical and Developmental Immunology)

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Serial endoscopic analysis of the glottis following laser cordectomy: from an oncological perspective

Lasers in Medical Science — Tue, 27 Dec 2011 17:03:35 +0100

Abstract From the oncological point of view, discrimination between the normal healing process and a pathological condition following laser surgery of the larynx is important in the management of possible residual/recurrent disease. However, the wound-healing process following laser surgery of the larynx is not well understood, especially regarding the gross morphological changes over time. The aims of this study were to analyze the serial temporal changes in the laryngeal endoscopic findings following laser cordectomy and to define the process involved in stabilization of the laryngeal mucosa. The study group comprised 46 consecutive patients with early glottic cancer undergoing laser cordectomy using the CO2 laser. All outpatient clinic endoscopic examinations were docume...

Long-Term Effect on EMT6 Tumors in Mice Induced by Combination of Laser Immunotherapy and Surgery

Integrative Cancer Therapies — Tue, 27 Dec 2011 05:00:00 +0100

Laser immunotherapy (LI) has been demonstrated to be a promising modality for cancer treatment. The present study was designed to further investigate the impact of LI combined with surgery. LI consists of a near-infrared laser, a light-absorbing dye (indocyanine green, ICG), and an immunostimulant (glycated chitosan, GC). ICG and GC were intratumorally injected, followed by laser irradiation. Female BALB/c mice bearing EMT6 tumor cells were divided into 4 groups: control, LI, LI followed by immediate surgery resection of residual tumor (LI + S0wk), and LI followed by surgical removal of residual tumor after 1 week (LI + S1wk). Successfully treated mice from all treatment groups were rechallenged twice with 105 and 5 x 105 EMT6 cells, respectively. The LI + S1wk group had the highest surviv...

Analysis of shade, temperature and hydrogen peroxide concentration during dental bleaching: in vitro study with the KTP and diode lasers

Lasers in Medical Science — Fri, 23 Dec 2011 16:52:25 +0100

Abstract Many dental bleaching techniques are now available, several of them using a laser source. However, the literature on the exact role of coherent light in the biochemical reaction of the whitening process is very discordant. The aims of this in vitro study were: (1) to compare two different laser sources, a KTP laser with a wavelength of 532 nm and a diode laser with a wavelength of 808 nm, during dental bleaching, and (2) to investigate the relationships among changes in gel temperature, tooth shade and hydrogen peroxide (HP) concentration during laser irradiation. Altogether, 116 bovine teeth were bleached using a 30% HP gel, some of them with gel only and others with gel plus one of the two lasers (532 or 808 nm) at two different powers (2 and 4&nb...

Update on Endovenous Radio-Frequency Closure Ablation of Varicose Veins

Annals of Vascular Surgery — Fri, 23 Dec 2011 05:00:00 +0100

Until recent years, the gold standard for treatment of truncal varicose veins has been high ligation and stripping of the saphenous vein. In the course of the last decade, new minimally invasive techniques based on endothermal ablation are progressively supplanting conventional surgery in the treatment of varicose veins. The endovenous treatment of varicose veins has been developed to reduce complications associated with conventional surgery and to improve quality of life. Radio frequency ablation (RFA) available since 1999 is now established as a safe and efficacious treatment for the ablation of refluxing saphenous veins. Among the emerging therapies, RFA with VNUS ClosureFAST is promising because it has eliminated almost all disadvantages associated with conventional surgery by “strip...

Med Sci Monit 2012; 18(1):PI1-4 "Results of the AcrySof Toric intraocular lenses implantation"

Medical Science Monitor — Thu, 22 Dec 2011 19:17:00 +0100

Conclusions: We noticed clinically and statistically important vision acuity improvement in the corneal astigmatism patients. The patients’ high satisfaction was conditioned by proper pre-surgery qualification. Astigmatism correction by cataract removal surgery is a safe and effective surgical solution. In the future, we expect the use of toric intraocular lenses will become widespread and significant. (Source: Medical Science Monitor)

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Med Sci Monit 2012; 18(1):CR13-18 "Selected surgical managements in snoring and obstructive sleep apnea patients"

Medical Science Monitor — Thu, 22 Dec 2011 19:17:00 +0100

Conclusions: Surgery in OSAS contributes to normalization of some sleep parameters. The majority of patients experienced improvement after surgery. (Source: Medical Science Monitor)

OptiMedica Receives FDA Market Clearance Of The Catalys Precision Laser System

Medical Design Online News — Thu, 22 Dec 2011 12:00:00 +0100

Global ophthalmic company OptiMedica Corp. has announced the U.S. Food and Drug Administration (FDA) 510(k) market clearance of its Catalys Precision Laser System, a next generation laser cataract surgery system that brings unequaled precision and accuracy and a markedly streamlined workflow to the laser cataract procedure (Source: Medical Design Online News)

Schwannoma of the larynx. An infrequent laryngeal tumour.

Acta Otorrinolaringologica Espanola — Thu, 22 Dec 2011 05:00:00 +0100

We report a case of a laryngeal asymptomatic neuroma that was diagnosed accidentally in an imaging test. Complete excision of the tumour was performed through a transoral CO(2) laser microsurgery without resorting to a tracheotomy. We discuss the clinical, pathologic and imaging findings and the management of this neoplasm. We also try to update the knowledge on the management of these tumours. PMID: 22197446 [PubMed - as supplied by publisher] (Source: Acta Otorrinolaringologica Espanola)

Coronary stent management in elective genitourinary surgery

BJU International — Thu, 22 Dec 2011 05:00:00 +0100

This article reviews the literature and recommends a protocol for clinical management of patients undergoing urological procedures after coronary stent placement.To review the literature on coronary stents and genitourinary surgery and provide a protocol for perioperative. The keywords, ‘elective surgery’, ‘aspirin’, ‘clopidogrel’, ‘guidelines for percutaneous coronary intervention’, and ‘antiplatelet therapy after coronary stent placement’ were used to search PubMed for any relevant articles relating to coronary stents. Recommendations were made based on the whether the procedures patients were exposed to placed them at low‐, moderate‐ or high‐bleeding risk based on the extent of the procedure. All elective procedures should be delayed for 1 month after bare‐...

Effect of low-level laser therapy on proliferation, differentiation, and adhesion of steroid-treated osteoblasts

Lasers in Medical Science — Wed, 21 Dec 2011 20:07:00 +0100

Abstract There has recently been constant effort to evaluate therapies that may have a positive effect on bone regeneration. However, there are few studies in the literature on the effects of low-level laser therapy (LLLT) involving tissues treated with anabolic steroids. The present study evaluated the effects of LLLT (AsGaAl 780 nm, 3 J/cm2, 10 mW, beam spot of 0.04 cm2, total energy 0.12 J) on the proliferation, adhesion, and differentiation of osteoblasts cultured in the presence of nandrolone decanoate (ND). The MTT method was employed to evaluate cell proliferation and adhesion. Cell differentiation was evaluated by measuring alkaline phosphatase activity. There was a significant decrease in cell proliferation in the irradiated group treated w...

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SD-OCT Features of Laser Pointer Maculopathy Before and After Systemic Corticosteroid Therapy.

Tue, 20 Dec 2011 14:06:02 +0100

Authors: Hossein M, Bonyadi J, Soheilian R, Soheilian M, Peyman GA Abstract The authors report spectral-domain optical coherence tomography findings of laser pointer-induced maculopathy in a 25-year-old man after accidental laser pointer exposure of less than 1 second. The Class 3R laser pointer (output wavelength 532 nm and output power 3.5 to 4.5 mW [continuous wave]) had U.S. Food and Drug Administration certification. One day after exposure, he had visual blurring and metamorphopsia of his right eye. He was treated with a systemic high-dose corticosteroid. Spectral-domain optical coherence tomography disclosed a hyperreflective band in the foveal region. After 1 week of treatment, disappearance of hyperreflectivity was observed on spectral-domain optical coherence tomography. A...

Flexible Ahmed valve for selected cases of refractory glaucoma.

European Journal of Ophthalmology — Tue, 20 Dec 2011 08:48:56 +0100

Conclusions. Flexible Ahmed glaucoma valve plate implant is a satisfactory method for controlling elevated IOP in cases of refractory glaucoma with success rate of 92.5% and lower incidence of immediate postoperative and implant-related complications. PMID: 22167546 [PubMed - in process] (Source: European Journal of Ophthalmology)

Which is More Important for Postoperative Recovery: Laser Wavelength or Fibers?

Journal of Vascular Surgery — Mon, 19 Dec 2011 23:06:58 +0100

This study presents an in-vitro method to quantify the potential for pain and bruising by comparing the degree of perforation of vessels with regard to wavelength and fibers. (Source: Journal of Vascular Surgery)

Increasing Ablation Distance Peripheral to the Saphenofemoral Junction May Result in a Diminished Rate of EHITs

Journal of Vascular Surgery — Mon, 19 Dec 2011 23:06:58 +0100

This study sought to assess the effect of ablation distance peripheral to the deep venous system on the incidence of EHIT. (Source: Journal of Vascular Surgery)