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老年人舒张性心力衰竭的诊治体会 被引量:4

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摘要 舒张性心力衰竭(DHF)是以存在心力衰竭(CHF)的症状和体征,射血分数(EF)正常或轻度降低,舒张功能异常为特征的一种常见且预后不良的临床综合征.其发病机制是由于左心室舒张期主动松弛能力受损,心肌顺应性下降,致左心室在舒张期的充盈受损,心搏量减少,左室舒张末期压增高而发生的心力衰竭.可单独存在也可与收缩性心力衰竭(SHF)并存.近20年的流行病学调查表明,CHF中至少50%的患者左室收缩功能正常,CHF的症状是由于左室舒张功能障碍所致.
作者 李海娥
出处 《基层医学论坛》 2012年第5期668-669,共2页 The Medical Forum
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