Category: ECG / Electrophysiology

Not amenable to Radiofrequency catheter ablation: a) Torsades de pointes b) Belhassen’s tachycardia c) AVNRT d) AVRT

Which of the following is not a formula for QT interval correction? A. Bazett B. Fridericia C. Hodges D. Bernoulli

Osborn wave is seen in: A. Hypocalcemia B. Hypothermia C. Hypokalemia D. Hyperkalemia

Brugada syndrome is characterised by:</strong> A. LBBB pattern with ST elevation in right precordial leads. B. RBBB pattern with ST depression in left precordial leads. C. LBBB pattern with ST elevation

Wrong about Belhassen’s tachycardia: A. Relatively narrow QRS complex B. Responds to verapamil C. Originates in RVOT D. Also known as idiopathic fascicular VT

Marker of successful ablation of AVNRT: A. Ventricular tachycardia B. Sinus rhythm C. Junctional rhythm D. Atrial fibrillation

ICDs do not reduce mortality in recent MI because those who get an arrhythmic death averted by an ICD have a high ischemic burden and heart failure risk.

The Katz-Wachtel phenomenon is tall diphasic RS complexes at least 50 mm in height in lead V2, V3 or V4 – mid precordial leads.

Implantable cardioverter defibrillator (ICD) is a device which can automatically detect and treat cardiac arrhythmias.

Most ventricular tachycardias (VT) can be approached for ablation endocardially.  But there are a few which needs an epicardial approach.