USMLE Forum Archives - USMLE Step 3 - Arrhythmias
Arrhythmias
sudha2015 - 02-04-11 03:52
Question: 1 According to a recent randomized, active-controlled study in 254 adult patients with atrial fibrillation (AF) eligible for cardioversion, vernakalant demonstrated efficacy superior to which drug?
1. Dronedarone
2. Sotalol
3. Amiodarone
4. Propafenone
5. Flecainide
sudha2015 - 02-04-11 03:52
Question: 1 According to a recent randomized, active-controlled study in 254 adult patients with atrial fibrillation (AF) eligible for cardioversion, vernakalant demonstrated efficacy superior to which drug?
1. Dronedarone
2. Sotalol
3. Amiodarone
4. Propafenone
5. Flecainide
Page 1
#1
Re: Arrhythmias babbu5508 - 06-22-11 16:17 Like other class III antiarrhythmics, vernakalant blocks atrial potassium channels, thereby prolonging repolarization. It differs from typical class III agents by blocking a certain type of potassium channel, the cardiac transient outward potassium current, with increased potency as the heart rate increases
Page 1