河南胸科医院学者称:Standford B 型主动脉病变位于主动脉弓大弯,“烟囱”支架增加内漏

2017-07-18 许菁 中国循环杂志

河南胸科医院谢力民等研究发现,Standford B 型主动脉病变在近端锚定区不足时,置入覆膜支架行胸主动脉腔内修复术(TEVAR),应用“烟囱”支架,可扩展TEVAR的锚定区,改善手术疗效。但当破口位于主动脉弓大弯侧时,“烟囱”支架可能增加内漏发生几率。

膜支架行胸主动脉腔内修复术(TEVAR)已经成为Standford B 型主动脉病变的首选治疗方案。

河南胸科医院谢力民等研究发现,Standford B 型主动脉病变在近端锚定区不足时,置入覆膜支架行胸主动脉腔内修复术(TEVAR),应用“烟囱”支架,可扩展TEVAR的锚定区,改善手术疗效。但当破口位于主动脉弓大弯侧时,“烟囱”支架可能增加内漏发生几率。

本研究中,32例Standford B 型主动脉病变患者的TEVAR合并“烟囱”支架手术均成功。术后即刻左颈总动脉或左锁骨下动脉均显影良好,患者均未出现神经系统并发症及左上肢严重缺血症状。

术后随访3~46个月,主动脉覆膜支架形态良好,“烟囱”支架内血流通畅,7例发生内漏患者中5例内漏逐渐减小、消失,2例持续存在。

研究者发现,TEVAR+“烟囱”支架的术中内漏的发生率与病变的位置有关。而且在TEVAR+“烟囱”支架的技术中绝大部分内漏是近端内漏。

从本组病例分析结果发现,如果是破口和假腔位于大弯侧的夹层动脉瘤或梭形膨大的假性动脉瘤,则术中即刻发生内漏的几率较大。大弯侧病变内漏发生率23.1%,而小弯侧病变内漏发生率为16.7%。

原始出处:谢力民,王晓明,李晓召,等.胸主动脉病变腔内修复术合并“烟囱”支架置入术后内漏情况分析.中国循环杂志,2016,31:692

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