Posted by: Johnson Francis on: 01 Nov, 2009
Previous MI has been documented in as many as 75% of SCA. SCD rates in those with previous MI is 4-6 times that in general population. High risk indicators are late VT/VF, LV dysfunction, frequent VPC and NSVT and inducible VT at EPS. ICD is recommended in VT/VF survivors with no reversible etiology. If there [...]
Posted by: Johnson Francis on: 30 Aug, 2009
Implantable defibrillator high voltage coils on X-ray chest PA view Click on the image for a larger view Implantable defibrillator (ICD) high voltage coils on X-ray chest PA view. The ICD generator is seen in the left infraclavicular region. Te lead is coursing through the left subclavian vein into the left brachiocephalic vein and hence [...]
Posted by: Johnson Francis on: 26 Jan, 2009
Congenital short QT syndrome is new inherited clinical syndrome which was described by Gussak et al in 2000. (Cardiology. 2000;94:99-102). A gene mutation causing short QT syndrome was first demonstrated by Brugada et al in January 2004. This mutation in HERG (KCNH2) gene was later called as SQT1 and was due to gain in function [...]
Posted by: Johnson Francis on: 22 Jan, 2009
Beta blockers have been once again shown to be quite effective in long QT syndrome type 1. Even though conventional teaching is that beta blockers are quite effective in long QT syndrome type 1, several instances of beta blocker failure have prompted clinicians to implant cardioverter defibrillators in this group of patients. A retrospective analysis [...]
Posted by: Johnson Francis on: 23 Oct, 2008
Thejus et al has written an editorial on catheter ablation for prevention of recurrent ventriular fibrillation in the current issue of Indian Pacing and Electrophysiology Journal (Thejus J et al. Indian Pacing Electrophysiol J. 2008; 8:238-241]. The current recommendation for treatment of recurrent ventricular fibrillation is the implantation of an ICD (Implantable Cardioverter Defibrillator). ICDs are [...]
