AHA2012年会:TAVI同行起搏器置入不改善生存率

2012-11-12 欧柏青 医学论坛网

  法国一项研究发现,对经皮主动脉瓣置换术(TAVI)患者同时或术后置入起搏器对中期生存预后无效,反而增加住院时间。该研究在美国心脏学会(AHA)2012科学年会上报告。   研究将TAVI患者分成起搏器置入组和非起搏器置入组,比较了30天和1年的随访结果。所有病人均在6年研究期间(2006-2012)在法国的3所三级医疗中心的任意一所接受治疗。共有960例接受了TAVI,其中70%为爱德华公司

  法国一项研究发现,对经皮主动脉瓣置换术(TAVI)患者同时或术后置入起搏器对中期生存预后无效,反而增加住院时间。该研究在美国心脏学会(AHA)2012科学年会上报告。

  研究将TAVI患者分成起搏器置入组和非起搏器置入组,比较了30天和1年的随访结果。所有病人均在6年研究期间(2006-2012)在法国的3所三级医疗中心的任意一所接受治疗。共有960例接受了TAVI,其中70%为爱德华公司的Sapien瓣,30%为美敦力公司的CoreValve瓣。在773例TAVI术前未行起搏器置入的患者中,112例术中或术后立即置入了起搏器。其中接受CoreValve瓣置入的患者有21.2%需行起搏器置入,这与CoreValve瓣自膨胀特性有关;在接受Sapien的仅有7.6%需行起搏器置入。总体起搏器置入率是11.7%。

  分析发现起搏器置入与使用大口径的人工瓣有关,但至少在接受Sapien瓣的病人中,他们的瓣环增大并不显著。经股静脉途径行TAVI的患者需行起搏器置入的比率略高一些。

  术后随访发现两组患者心脏超声结果包括主动脉瓣反流程度相似。院内生存率亦无差别,但起搏器置入组住院日期显著延长约1天。30天随访,无论术前术中术后是否有起搏器置入,生存率相似。一年期随访,接受起搏器患者组死亡例数增多,但无明显统计学差异。

  研究者计划继续进行长期随访研究患者的生存率,并观察TAVI后行起搏器安置对心功能和症状的影响。研究者表示,TAVI术中应尽量避免出现需行起搏器安置的情况出现。

 

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    2012-11-14 zhaohui6731
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    2012-11-14 HNYYM