Approach to ventricular arrhythmias Flashcards
1
Q
Origin of focal VAs
A
Myocardial cells or Purkinjie cells capable of automaticity
2
Q
Origin of Reentrant VAs
A
Often involves scars
3
Q
Very rapid monomorphic VT that has a sinusoidal appearance; not possible to distinguish QRS from T wave
A
Ventricular flutter
4
Q
Most common cause of VF
A
Ischemia
5
Q
First therapy for most VAs
A
Beta blockers
6
Q
Of these: lidocaine, quinidine, procainamide and disopyramide, which does not have potential proarrhythmic effect
A
quinidine
7
Q
Most effective drug for supressing VAs
A
Amiodarone
8
Q
Dronedarone increases mortaliy in this subset of patients
A
HF
9
Q
ICDs are only recommended if expectation for survival is at least ___ yr/s with acceptable functional capacity
A
1 yr
