Thursday 9 February 2012

cardiology -tough nuts

1. Epsilon waves in EKG are seen

a. LOWN GANONG LEVINE Syndrome
b. WOLF PARKINSON WHITE Syndrome
c. ARRTHMOGENIC RIGHT VENTRICULAR DYSPLASIA
D. LONG QT SYNDROME

epsilon waves are seen at the end of qrs complex in ARVD ,choice C on account of defective spread of depolarization in RVOT due to fibrosis in RV epicardium . This defect is most common cause of sudden death in communities where HOCM screening is done.

The waves here should not be mixed with J waves which are seen in hypothermia due to delayed conduction in bundle of his .

The delta waves are seen in WPW due to abberant conduction into bundle of his and hence forth seen in upstroke of R wave.