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心脏瓣膜术后血管内溶血的研究进展 被引量:2

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摘要 血管内溶血是心脏瓣膜术后并发症之一。随着医学技术发展,严重瓣膜相关血管内溶血发生率显著降低,但亚临床溶血仍普遍存在。该并发症主要发生机制为瓣膜术后局部结构改变,导致非生理性血流形成,剪应力增高,引发红细胞破碎、血管性血友病因子减少,血小板功能异常。溶血的发生及严重程度受人工瓣膜、手术操作和原发病等多方面因素影响。早期主要原因为瓣膜设计缺陷和质量问题,现阶段以手术操作并发症所致为主。患者同时具有瓣膜功能异常和血管内溶血相关临床表现,治疗以纠正原发病为主,结合患者情况个体化用药,严重者考虑再次手术。近年来,介入下瓣膜置换术和瓣周漏修补术在世界范围内逐渐开展,相关研究及证据资料有限,值得进一步关注。
作者 王瑾 敖虎山
出处 《中国循环杂志》 CSCD 北大核心 2017年第7期711-713,共3页 Chinese Circulation Journal
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