Ventricular ectopics, NSVT, AIVR, Sustained VT

Question 1

Most common VAs NOT assoc with structural heart dse have a ______ like config

Answer 1

LBBB

Question 2

NSVT from a BENIGN idiopathic source are usually _____

Answer 2

monomorphic

Question 3

When is ICD indicated after acute MI

Answer 3

> 40 days post MI +
EF of < 30% or EF <35% and symptomatic HF (NYHA II and III)

or

> 5 days who have reduced LV EF, NSVT and inducible VT/VF on EPS testing

Question 4

Duration of sustained VT

Answer 4

30s ir requiring an intervention for termination

Question 5

Most likely dx/ arrhythmia in px with known structural heart dse if with wide QRS, independent of QRS morphology

Answer 5

VT

Question 6

Infarct scars provide durable substrate for VT and up to 70% have a recurrence of arrhythmia within ___ yr/s

Answer 6

2

Question 7

What trial concluded that catheter ablation is better than increasing dose of antiarrhythmic drug particularly amiodarone

Answer 7

VANISH

VT ablation vs Escalation of Antiarrhythmic Drugs

Question 8

Sustained monomorhic VT associated with non ischemic cardiomyopathy is usually due to ________

Answer 8

scar related reentry

Question 9

How many % of patients with ARVC have autosomal dominant mode of inheritance?

Answer 9

50%

Question 10

Autosomal recessive forms of ArVC are associated with which syndromes ? (2)

Answer 10

Naxos and Carvajal

Naxos is assoc with Plakophillin 2 and plakoglobin

Carvajal is most commonly due to a mutation in desmoplakin

Question 11

Among all px with adult congenital heart disease, which is the most common substrate for sustained VT

Answer 11

VSD in particular TOF

Question 12

Other name for LV fascicular VT

Answer 12

Belhassens VT or verapamil sensitive VT