Filtered By:
Drug: Amiodarone
This page shows you your search results in order of date. This is page number 5.
Order by Relevance | Date
Total 80 results found since Jan 2013.
Ventricular tachycardia – management
Ventricular tachycardia is a potentially life threatening cardiac arrhythmia. If the rate is very fast, hemodynamic deterioration can occur rapidly. On the electrocardiogram, ventricular tachycardia can be defined as three or more ventricular ectopic beats occurring in a sequence at a rate more than 100 per minute. Ventricular tachycardia which gets spontaneously terminated within 30 seconds is called non sustained ventricular tachycardia (NSVT). Sustained ventricular tachycardia is one which does not get spontaneously terminated within 30 seconds or needs cardioversion before that due to hemodynamic compromise.
Based on ...
Source: Cardiophile MD - December 3, 2014 Category: Cardiology Authors: Prof. Dr. Johnson Francis, MD, DM, FACC, FRCP Edin, FRCP London Tags: ECG / Electrophysiology General Cardiology Source Type: blogs
Prolonged (63 minutes) Ventricular Fibrillation, Followed by Unusual Cardiogenic Shock
In this study, 5% of VF arrest was due to PE: V fib is initial rhythm in PE in 3 of 60 cases. On the other hand, if the presenting rhythm is PEA, then pulmonary embolism is likely. When there is VF in PE, it is not the initial rhythm, but occurs after prolonged PEA renders the myocardium ischemic.--Another study by Courtney and Kline found that, of cases of arrest that had autopsy and found that a presenting rhythm of VF/VT had an odds ratio of 0.02 for massive pulmonary embolism as the etiology, vs 41.9 for PEA.
Source: Dr. Smith's ECG Blog - September 19, 2014 Category: Cardiology Authors: Steve Smith Source Type: blogs
Cardioversion of ventricular tachycardia – ECG rhythm strip
Cardioversion of ventricular tachycardia
(Click on the image for an enlarged view)
Ventricular tachycardia is a life threatening ventricular arrhythmia which can lead to hypotension and sometimes degenerate into ventricular fibrillation if not treated promptly. The tracing above shows a fast wide QRS tachycardia (in the initial part of the strip), which is terminated by a direct current (DC) shock, leading to restoration of sinus rhythm in the latter part of the rhythm strip. Here it is a fast ventricular tachycardia with rate of around 225 per minute which produced hemodynamic compromise and needed rapid cardioversion. If...
Source: Cardiophile MD - July 22, 2014 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin, FRCP London Tags: General Cardiology Amiodarone cardioversion DC shock direct current shock fast ventricular tachycardia FVT FVT zone hemodynamic compromise life threatening ventricular arrhythmia lignocaine overdriving pacing rapid cardioversion Source Type: blogs
Paroxysmal SVT (PSVT) that repeatedly recurs in spite of successful conversion with adenosine
An elderly male complained of dyspnea. His pulse was regular at just under 150. BP was 110/70. There was no evidence of shock or pulmonary edema. Here is his ED ECG:There is a very rapid, wide complex tachycardia (QRS = 150 ms). There are no P-waves before the QRS's. There is a definite Right Bundle Branch Block and Left Anterior Fascicular Block pattern, so this is not VT. The bifascicular block was new. It could be a new block, or a rate-related BBB If you look closely, you can see the inverted (retrograde) P-waves. (See annotated ECG below, with arrows pointing ...
Source: Dr. Smith's ECG Blog - January 31, 2014 Category: Cardiology Authors: Steve Smith Source Type: blogs
Are doctors being duped through medical education? Could social media help?
I made a discovery this week about the novel anticoagulant medications, dabigatran (Pradaxa), rivaroxaban (Xarelto), apixaban (Eliquis) and edoxaban (Lixiana). I was looking into the often-asked question of how these new drugs compare to the old standard, warfarin.
The discovery felt like a Eureka moment. I ran it by my stats guy–my son–and a couple of colleagues, and they confirmed, that my discovery was truth. I’m working on a post now that discusses the details of how the medical world has been misled about these drugs. Stay tuned.
Medical Education:
For now, though, this revelation got me thinking abo...
Source: Dr John M - December 14, 2013 Category: Cardiology Authors: Dr John Source Type: blogs
You MUST recognize this pattern, even if it is not common
Disclaimer: I never state from where I get a case. They come from all over the world. Any case may or may not be from my own institution. Do not make any assumptions.Case: A non-English speaking woman in her 60's with h/o HTN, type II DM, hyperlipidemia, CAD s/p CABG 16 years prior, and end stage renal disease on dialysis presented to the ED at time 0. She had awoken 7 hours prior with severe headache followed by upper chest heaviness and vomited x 2. EMS placed an 18 gauge IV, gave 2 NTG, and aspirin. She stated the pain was not similar to a previous MI. BP was 200 systoli...
Source: Dr. Smith's ECG Blog - November 22, 2013 Category: Cardiology Authors: Steve Smith Source Type: blogs
Drug which can shorten QT interval in LQT3
:
a) Amiodarone
b) Quinidine
c) Procainamide
d) Mexiletine
Correct answer: d) Mexiletine
In LQT3, there is excessive inward sodium current, which is blocked by mexiletine. But this effect may not be seen in all cases of LQT3.
[Ruan Y, Liu N, Bloise R, Napolitano C, Priori SG. Gating properties of SCN5A mutations and the response to mexiletine in long-QT syndrome type 3 patients. Circulation 2007;116:1137–1144].
Source: Cardiophile MD - October 7, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin, FRCP London Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Amiodarone
, a class III anti arrhythmic agent, was initially developed as an:
a) Anti arrhythmic agent
b) Anti anginal agent
c) Anti coagulant
d) None of the above
Correct answer: b) Anti anginal agent
Amiodarone was initially developed as an antianginal agent and its anti-arrhythmic actions were discovered later. Currently amiodarone is one of the most widely used broad spectrum anti-arrhythmic agent. It has actions across all the classes of anti arrhythmic action ranging from class I to class IV.
Source: Cardiophile MD - August 30, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin, FRCP London Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Cardiology MCQ Online 5
Time limit: 0
Quiz-summary
0 of 25 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
You are welcome to try this MCQ set and share it among your friends. Answer key with explanation appears after you complete the test and submit it and press on the view questions button. We strongly advise you t...
Source: Cardiophile MD - July 15, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Cardiology MCQ Test 5
Cardiology MCQ Online 5
Time limit: 0
Quiz-summary
0 of 25 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
You are welcome to try this MCQ set and share it among your friends. Answer key with explanation appears after you complete the test and submit it and press on the view questions button. W...
Source: Cardiophile MD - July 15, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Cardiology MCQ Online 3
Time limit: 0
Quiz-summary
0 of 25 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
You are welcome to try this MCQ set and share it among your friends. Answer key with explanation appears after you complete the test and submit it and press on the view questions button. We strongly advise you t...
Source: Cardiophile MD - July 14, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Cardiology MCQ Test 3
Cardiology MCQ Online 3
Time limit: 0
Quiz-summary
0 of 25 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
You are welcome to try this MCQ set and share it among your friends. Answer key with explanation appears after you complete the test and submit it and press on the view questions button. W...
Source: Cardiophile MD - July 14, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Cardiology Online Test Series 2
Cardiology Online Test Series 2
Time limit: 0
Quiz-summary
0 of 30 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
You are welcome to try this Cardiology MCQ set and share it among your friends. We strongly advise you to verify the answe...
Source: Cardiophile MD - May 22, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Cardiology Online Test Series 2
Time limit: 0
Quiz-summary
0 of 30 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
You are welcome to try this Cardiology MCQ set and share it among your friends. We strongly advise you to verify the answers with standard text books.
...
Source: Cardiophile MD - May 21, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
What is the mechanism of ventricular tachycardia in hypertrophic cardiomyopathy ?
Take Our Poll
In HCM every myocyte is genetically made defective . Myofibrils are in disarray every where . Still , can we identify some vulnerable zones that acts as arrhythmic focus ? If that is possible , we have a opportunity to abate that focus .
In HOCM , which is the most stressed area ? LVOT ? Septum, ? When we say stress , it can mean either mechanical or electrical .
Does electrical instability involve the same zone as mechanical stress ?
How often VT originate from LVOT in HCM ? For this we have good clinical model _, the patients who underwent alcohol septal ablation.
What happens to the incidenc...
Source: Dr.S.Venkatesan MD - April 26, 2013 Category: Cardiology Authors: drsvenkatesan Tags: cardiology -Therapeutics Cardiology -unresolved questions Cardiology-Arrhythmias Infrequently asked questions in cardiology (iFAQs) hocm hypertrophic obstructive cardiomyopathy lvot vt in hocm mechanism of vt in hocm mechansim of vt in hcm Source Type: blogs
