17 Vent arr Vent tach

Question 1

ventreicular tach

• ___ rhythm
• ___ QRS complexes
• defined as a series of more than 3 concecutive ___ at a rate of > ___ bpm

Answer 1

• regular
• Wide
• PVCs, 100

Question 2

types

nonsustained
- more than ___ PVCs, terminates spontaneously

sustained
- VT lasting > 30 sec
- requires termination because of hemodynamic instability in < 30 secs

Answer 2

3
instability

Question 3

types

sustained monomorphic VT in patients with no structural heart disease
- idiopathic
- sometimes responsive to ___
- outflow tract VT - right or left

Answer 3

verapamil

Question 4

vent tach

mechanisms
- increased ventricular ___
- ___

Answer 4

automaticity
re-entry

triggered by first PVCs

Question 5

vent tach - etiologies/risk factors

• CAD
• MI
• HFrEF
• electrolyte abnormalities ( ___ , ___ )
• drugs ( ___ , ___ , and ___ )

Answer 5

• hypo K , hypo Mg
• flecainide, propafenone, digoxin

Question 6

sustained VT may progress to Vfib, life threatening
- risk for sudden cardiac ___

Answer 6

death

Question 7

vent tach goals of therapy

• terminate VT, restore ___
• prevent ___ of VT
• reduce risk of sudden ___

Answer 7

NSR
recurrence
death

Question 8

drugs for termination of vent tach

drugs for termination of vent tach (5)

Answer 8

procainamide
amiodarone
sotalol
verapamil
BBs (esmolol, metoprolol, propranolol)

Question 9

algorithin for termination of hemodynamically stable VT

structural heart disease
- ___ , IV ___ , IV ___ , or IV ___

no structural heart disease (idiopathic)
- verapamil sensitive: verapamil
- outflow tract: ___

if terminated, look at therapy to prevent recurrence

if not, ___

Answer 9

DCC, procainamide, amiodarone, sotalol
BB
DCC

Question 10

prevention of recurrence and sudden death

ICD > catheter ablation
drugs: ___ or ___

Answer 10

amiodarone
sotalol

ICE = mplantable cardioverter defibrillator