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近二十余年来,人工心脏起搏技术发展迅速,已成为心律失常患者长期有效的治疗手段。然而,现今采用的起搏方式绝大多数为右心室心内膜按需起搏(下称右室起搏),就血流动力学而言并非理想。近年来,国外文献中有关持久右室起搏后能否并发“房室瓣返流”问题意见分歧,本文就此综述如下。 1968年,Barold首先提出右室起搏后可能的并发症之一是三尖瓣返流(TR)及/或二尖瓣返流(MR)。此后,不少作者也指出右室起搏后少数病人可产生TR。其发生机理认为是:(1)起搏电极越过三尖瓣阻止其关闭;(2)电极与瓣膜结构间纤维
Nearly 20 years, the rapid development of artificial cardiac pacing technology has become a long-term effective treatment of patients with arrhythmia. However, most of the pacing methods used today are right ventricular endocardial on-demand pacing (hereinafter referred to as RV pacing) and are not hemodynamically ideal. In recent years, foreign literature on the persistence of right ventricular pacing can concurrent “atrioventricular valve regurgitation” disagreement, this article is summarized as follows. In 1968, Barold first proposed one possible complication after right ventricular pacing was tricuspid regurgitation (TR) and / or mitral regurgitation (MR). Since then, many authors also pointed out that a small number of patients after right ventricular pacing can produce TR. The mechanism is that: (1) the pacing electrode over the tricuspid valve to prevent its closure; (2) between the electrode and the valve structure fibers