过长的 PR 间期。

Extra long PR intervals.

机构信息

Cedars-Sinai Medical Center, Los Angeles, CA, USA.

出版信息

Rev Cardiovasc Med. 2010 Fall;11(4):248-53. doi: 10.3909/ricm0518.

Abstract

This case review presents various manifestations of extra long PR intervals, an interesting form of atrioventricular (AV) block first described in 1977. All patients in this study had organic heart diseases and various combinations of multilevel conduction impairment. Perhaps the most common cause of chronic AV conduction impairment is the ill-defined degenerative and/or fibrotic damage to the intraventricular conduction system.

摘要

本病例回顾呈现了各种超长 PR 间期的表现，这是一种有趣的房室（AV）传导阻滞形式，于 1977 年首次描述。本研究中的所有患者均有器质性心脏病，并伴有不同程度的多水平传导障碍。慢性 AV 传导障碍最常见的原因可能是对室内传导系统的不明原因的退行性和/或纤维化损伤。