Posted by: Johnson Francis on: 19 Sep, 2009
Which of the following rhythms is taken as a marker of successful ablation of atrioventricular nodal re-entrant tachycardia (AVNRT)? A. Ventricular tachycardia B. Sinus rhythm C. Junctional rhythm D. Atrial fibrillation Answer: C Usually a short run of accelerated junctional rhythm occurs during successful radiofrequency catheter ablation of AVNRT. Non inducibility of tachycardia is an [...]
Posted by: Johnson Francis on: 04 Sep, 2009
Coronary sinus is cannulated through a right atrial purse string suture to deliver cardioplegia in a retrograde fashion for cardiopulmonary bypass for aortic valve replacement. The site of right atrial scar can sometimes be a site for later re-entrant tachycardia.
Posted by: Johnson Francis on: 04 Sep, 2009
8 – 10% of atrial tachycardias may be adenosine sensitive Optimal site of pacing The shorter distance the impulse have to travel before engaging the conduction system, the better the hemodynamic response RVOT pacing is not beneficial in HOCM and in situations with diffuse infra Hisean conduction system disease Principles of entrainment What is entrainment? [...]
