J Ebdovasc Ther:CH-EVAR治疗无症状dPAA患者的多中心研究结果

2021-11-15 “Clinic門诊新视野”公众号 “Clinic門诊新视野”公众号

近年来,烟囱技术腔内腹主动脉瘤修复术(CH-EVAR)在复杂AAA和其他肾旁主动脉瘤(dPAA)病变的治疗中的作用迅速发展。CH-EVAR随之备受重视,并且被纳入到了最新SVS和ESVS指南。值得注意

近年来,烟囱技术腔内腹主动脉瘤修复术(CH-EVAR)在复杂AAA和其他肾旁主动脉瘤(dPAA)病变的治疗中的作用迅速发展。CH-EVAR随之备受重视,并且被纳入到了最新SVS和ESVS指南。值得注意的是,CH-EVAR主要被证明是紧急情况下的替代方案,并且理想情况下烟囱支架应不超过2枚,其早无症状dPAA患者群体中的治疗作用尚不明确。Pitoulias等评估了择期CH-EVAR治疗无症状dPAA患者的疗效,结果发表于J Endovasc Ther。

研究目的

评估择期CH-EVAR治疗无症状dPAA患者的疗效。

研究方法

2008~2014年,对在13个欧美国家的医学中心接受择期CH-EVAR手术治疗的患者进行分析。共517例患者接受CH-EVAR手术,其中326例dPAA患者;排除有症状和/或破裂患者后,剩余275例无症状dPAA患者;另有8例患者失访,最终纳入267例dPAA患者纳入本次回顾性分析。主要终点是30天和出院CH-EVAR相关死亡率。次要终点包括持续性Ia型内漏、造影证实的闭塞和/或烟囱移植物(CG)或累及内脏血管狭窄,以及CH-EVAR相关再干预。

研究结果

267例患者的平均年龄为75.2±7.4岁,男性比例为82.0%,供累及内脏血管442条。术中6条肾动脉被主动脉移植物有计划的覆盖,其余436条血管均被重建。即刻技术成功率为98.6%。

主要终点结果:术后30天死亡率为1.9%(n=5),院内并发症发生率为10.1%(n=27),包括3例中风、1例永久性透析和1例肠缺血。30 天内为检测到 Ia 型内漏。总体死亡率为21.0%(n=56)(表1)。Kaplan-Meier生存曲线评估3年总体生存率为75.0±0.2%,免于CH-EVAR相关死亡率为98.0±0.1%(图1)。

表1. 并发症和死亡的详情

图1. Kaplan-Meier生存曲线

次要终点结果:术中7条内脏血管闭塞,其中仅1条为CH-EVAR相关的CG闭塞。30天内,有6例患者的7枚CG发生阻塞(表2)。平均随访25.5±13.3个月,期间AAA最大直径显着减小。随访期间,总体原发性和继发性 Ia 型内漏发生率分别为8.2% 和 5.6%。CG一期通畅率为87.0%,二期通畅率为89.0%(图2)。

表2. 术后30天内主要结果

图2. 一期和二期通畅率的Kaplan-Meier曲线

总 结

针对dPAA的治疗,择期CH-EVAR手术持久有效。本研究结果与其他已发表的腔内治疗结果相当,这也证明了CH-EVAR在治疗无症状dPAA患者中有一定的应用前景。

原始出处:

Pitoulias G, Fazzini S, Donas K, et al. Multicenter Mid-Term Outcomes of the Chimney Technique in the Elective Treatment of Degenerative Pararenal Aortic Aneurysms. J Ebdovasc Ther. 2021.

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