期刊简介
《心电与循环》为浙江省卫生和计划生育委员会主管、浙江省医学会主办的，面向全国发行的心电学、心脑血管病学及相关学科的专业学术性期刊。其前身《心电学杂志》为创刊于1982年的我国第一本心电学专业学术性期刊。《心电与循环》目前为双月刊，单月20 日出版。杂志面向从事心脑血管疾病预防、医疗、科研、教学的工作者，报道心电图、心电起搏和电生理，动脉粥样硬化，高血压，心力衰竭，结构性心脏病（先天性心脏病、瓣膜病），血栓栓塞性疾病和抗栓治疗，心脑血管影像学，介入心脏病学及心脑血管疾病的流行病学、基础研究、药理学、循证医学研究等。本刊设有论著、经验交流、病例分析、综述、讲座等栏目。欢迎广大心电学、心脑血管疾病及相关科室工作者投稿。
首页>心电与循环杂志
- 杂志名称：心电与循环杂志
- 主管单位：浙江省卫生和计划生育委员会
- 主办单位：浙江省医学会
- 国际刊号：2095-3933
- 国内刊号：33-1377/R
- 出版周期：双月刊
期刊荣誉：中国科技论文统计源期刊期刊收录：国家图书馆馆藏, 万方收录(中), 维普收录(中), 上海图书馆馆藏, 知网收录(中)
Localization of premature ventric-ular contractions from ventricular outflow tract
童鸿
关键词：aortic valve, left coronary cusp, left ventricular, left ventricle
摘要：Premature ventricular contractions (PVCs)may arise from the endocardial,midmyocardial,or epicardial surfaces in either the right or left ventricle.While the right ventricular outflow tract(RVOT)is the most common site for idiopathic PVC origin,other potential locations include the left ventricular outflow tract (LVOT),fascicles,papillary muscles,aortic valve cusps,aorto-mitral continuity,mitral valve annulus,or epicardium.In addition,sleeves of ventricular myocardium extending beyond the semilunar valves and into the proximal portion of the great arteries have also been established as sites of ventricular ectopy.The myocardial sleeves tend to extend in a circumferential pattern above the pulmonic valve,while myocardial extension above the aortic valve tends to occur along the right coronary cusp and the anterior aspect of the left coronary cusp.Premature ventricular contractions (PVCs)may arise from the endocardial,midmyocardial,or epicardial surfaces in either the right or left ventricle.While the right ventricular outflow tract(RVOT)is the most common site for idiopathic PVC origin,other potential locations include the left ventricular outflow tract (LVOT),fascicles,papillary muscles,aortic valve cusps,aorto-mitral continuity,mitral valve annulus,or epicardium.In addition,sleeves of ventricular myocardium extending beyond the semilunar valves and into the proximal portion of the great arteries have also been established as sites of ventricular ectopy.The myocardial sleeves tend to extend in a circumferential pattern above the pulmonic valve,while myocardial extension above the aortic valve tends to occur along the right coronary cusp and the anterior aspect of the left coronary cusp.
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