Category: ECG / Electrophysiology

Reduced incidence of postoperative AF in the colchicine group was noted in COPPS Atrial Fibrillation Substudy.

One third of the non responders to LV pacing responded to BV pacing and about one fifth of the BV pacing non responders responded to LV pacing.

ECG findings in VSD: normal in small VSD, left axis deviation in inlet VSD and swiss cheese VSD, left atrial overload with large shunts.

Successful catheter ablation of AF produces improvement in renal function over one year follow up in those with mild to moderate kidney dysfunction.

Anterior papillary muscle Tachycardia has RBBB pattern with right inferior QRS axis while posterior papillary muscle tachycardia has RBBB, superior axis.

ATP test is done to decide whether patients with syncope of unknown origin will benefit from cardiac pacing.

Mitral isthmus is the region between the left inferior pulmonary vein ositum and the mitral annulus.

Broad classification of cardiac arrhythmias

Causes of cardiac arrhythmias

Sinus node recovery time is the time required for recovery of sinus node activity after cessation of atrial overdrive pacing for 30 seconds.