研究单位：[1]Medtronic Cardiac Rhythm and Heart Failure[2]Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing,China[3]The Second Xiangya Hospital of Central South University Changsha,China[4]The Second Affiliated Hospital of the Third Military Medical University Chongqing,China[5]Fujian Provincial Hospital Fuzhou,China,350001[6]Sun Yat-Sen Memorial Hospital Sun Yat-Sen University Guangzhou,China,510000[7]The First Affiliated Hospital of Sun Yat-Sen Medical University Guangzhou,China,510000[8]Guizhou Province People's Hospital Guiyang,China[9]The First Affiliated Hospital of Zhejiang University College of Medicine Hangzhou,China,310003[10]First People's Hospital of Yunnan Province Kunming,Yunnan,China,650032
研究目的：
The purpose of this study is to demonstrate that primary prevention patients with one or more additional risk factors (1.5 prevention criteria: syncope/pre-syncope, non-sustained ventricular tachycardia (NSVT), frequent pre-ventricular contractions (PVCs), and low left ventricular ejection fraction (LVEF)) are at a similar risk of life-threatening ventricular arrhythmias (LTVA) when compared to secondary prevention patients, and would receive similar benefit from an implantable cardioverter defibrillator (ICD), or cardiac resynchronization therapy- defibrillator (CRT-D) implant.
