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经导管主动脉瓣膜置换技术现状和展望 被引量:1

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摘要 主动脉瓣膜狭窄(aortic valve stenosis,AS)是一种常见老年心脏瓣膜疾病,75岁以上老年人中发病率为4.6%。随着人口的老年化,症状严重的AS患者越来越多,目前尚无药物能延缓这种疾病进展。主动脉球囊扩张,因其长期效果不太理想,主要用于临时改善患者血流动力学及治疗过渡阶段,体外循环下心脏瓣膜置换术(aorticvalvereplacement,AVR)的临床效果还比较满意,但一部分患者由于年龄太大,且合并多种疾病,不能耐受手术,手术病死率升高。这种情况下,经导管置入瓣膜支架(transcatheteraorticstent-valveim-plantation,TAVI)治疗主动脉瓣狭窄逐渐有了较大优势。
出处 《武警医学》 CAS 2012年第5期443-446,共4页 Medical Journal of the Chinese People's Armed Police Force
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