Cardiac resynchronization therapy for heart failure induced by left bundle branch block after transcatheter closure of ventricular septal defect
Cardiac resynchronization therapy for heart failure induced by left bundle branch block after transcatheter closure of ventricular septal defect作者机构：Department of Cardiology Affiliated Hospital of Jiangsu University Zhenjiang 212001 Jiangsu Province China
出 版 物：《Journal of Geriatric Cardiology》 (老年心脏病学杂志（英文版）)
年 卷 期：2014年第11卷第4期
页 面：357-362页
核心收录：
学科分类：0710[理学-生物学] 1002[医学-临床医学] 07[理学] 080202[工学-机械电子工程] 08[工学] 09[农学] 0802[工学-机械工程]
基 金：supported by the Social Development Program of Zhenjiang
主 题：Ventricular septal defect Amplatzer occluder Left bundle branch block Heart failure Cardiac resynchronization therapy
摘 要：A 54-year-old female patient with congenital heart disease had a persistent complete left bundle branch block three months after closure by an Amplatzer ventricular septal defect occluder. Nine months later, the patient suffered from chest distress, palpitation, and sweating at daily activities, and her 6-min walk distance decreased significantly （155 m）. Her echocardiography showed increased left ventricular end-diastolic diameter with left ventricular ejection fraction of 37%. Her symptoms reduced significantly one week after received cardiac resynchronization therapy. She had no symptoms at daily activities, and her echo showed left ventricular ejection fraction of 46%and 53%. Moreover, left ventricular end-diastolic diameter decreased 6 and 10 months after cardiac resynchronization therapy, and 6-min walk dis-tance remarkably increased. This case demonstrated that persistent complete left bundle branch block for nine months after transcatheter closure with ventricular septal defect Amplatzer occluder could lead to left ventricular enlargement and a significant decrease in left ventricular systolic function. Cardiac resynchronization therapy decreased left ventricular end-diastolic diameter and increased left ventricular ejection fraction, thereby improving the patient’s heart functions.
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