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室性早搏在一般人群中非常常见,而室性早搏和左室收缩功能、充血性心力衰竭(心衰)以及人群死亡率的关系尚不清楚。本研究利用一基于人群的队列研究,通过24小时动态心电图(Holter)检测室性早搏的频率,并探讨其与左室射血分数(LVEF)下降、心衰和死亡的关系。方法:心血管健康研究在1989~1990年随机入选了5 201位年龄>65岁的受试者,进行病史采集、体格检查、实验室检查及心电检测,每半年1次电话随访,每1年1次门诊随访。
Premature ventricular contractions are very common in the general population, but the relationship between premature ventricular contractions and left ventricular systolic function, congestive heart failure (CHF) and population mortality is not yet clear. This study used a population-based cohort study to measure the frequency of premature ventricular contractions by Holter and to investigate the association with decreased left ventricular ejection fraction (LVEF), heart failure and death. METHODS: Cardiovascular health studies randomized 5,201 subjects aged> 65 years of age from 1989 to 1990 to medical history, physical examination, laboratory tests, and electrocardiogram examinations. A telephone call was made every six months for each 1 1 outpatient visits.