Cardiac Electrophysiology, Division of Cardiovascular Diseases, Washington University School of Medicine, St Louis, MO 63110, USA.
Am J Med. 2011 Sep;124(9):813-5. doi: 10.1016/j.amjmed.2010.09.028.
Cardiac resynchronization therapy is an important and underused tool to help patients with heart failure symptoms, left ventricular systolic dysfunction (LVEF≤35%), and intraventricular conduction system disease (QRS≥120 msec). Cardiac resynchronization therapy paces the heart simultaneously from both right and left ventricles (through the coronary sinus). Approximately three quarters of patients who undergo a successful implant will have some degree of symptomatic improvement and have fewer heart failure hospitalizations. When cardiac resynchronization therapy is combined with a defibrillator, patients may benefit from the added protection against sudden arrhythmic death.
心脏再同步治疗是一种重要且未被充分利用的工具，可帮助心力衰竭症状、左心室收缩功能障碍（LVEF≤35%）和室内传导系统疾病（QRS≥120ms）的患者。心脏再同步治疗通过冠状窦同时从右心室和左心室起搏心脏。大约四分之三接受成功植入的患者将在一定程度上改善症状，并减少心力衰竭住院次数。当心脏再同步治疗与除颤器结合使用时，患者可能会受益于对心律失常性猝死的额外保护。
