Ventricular Arrythmias

Question 1

Examples of polymorphic VT:

Answer 1

Acute MI
Ventricular hypertrophy
Genetic mutations:
Acquired long QT
Congenital long QT syndrome
Short QT syndrome
Brugada syndrome
Early repolarization syndrome
Catecholaminergic polymorphic VT
Hypertrophic cardiomyopathy
Genetic dilated cardiomyopathies

Question 2

Causes of catecholaminergic polymorphic VT:

Bidirectional VT

Answer 2

Mutations in cardiac ryanodine receptor, calsequestin 2,