Concept of defibrillation vector in the management of high defibrillation threshold  

作　　者：Kevin Hayes Abhishek Deshmukh Sadip Pant Gareth Tobler Hakan Paydak 

机构地区：[1]Department of Cardiology,University of Arkansas for Medical Sciences,Little Rock,AR 72205,United States [2]Department of Internal Medicine,University of Arkansas for Medical Sciences,Little Rock,AR 72205,United States [3]Department of Cardiothoracic Surgery,University of Arkansas for Medical Sciences,Little Rock,AR 72205,United States

出　　处：《World Journal of Cardiology》2013年第4期106-108,共3页世界心脏病学杂志（英文版）（电子版）

摘　　要：We present a case where defibrillation threshold was dangerously elevated to the point that the patient had no safety margin,and his implantable cardioverter-defibrillator generator was discovered to have migrated.Generator migration reduces the distance between the can and the coil,effectively creating a smaller bipolar current and sparing the left ventricle from the current needed for defibrillation.This case underscores the importance of securing the generator in place,as this patient would have been spared multiple shocks and an invasive medical procedure had his generator been better secured.We present a case where defibrillation threshold was dangerously elevated to the point that the patient had no safety margin,and his implantable cardioverter-defibrillator generator was discovered to have migrated.Generator migration reduces the distance between the can and the coil,effectively creating a smaller bipolar current and sparing the left ventricle from the current needed for defibrillation.This case underscores the importance of securing the generator in place,as this patient would have been spared multiple shocks and an invasive medical procedure had his generator been better secured.

关 键 词：VENTRICULAR TACHYCARDIA DEFIBRILLATION threshold IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR PACEMAKER 

分 类 号：R541.7[医药卫生—心血管疾病]