Circulation:阜外医院:非接触式静脉采集CABG术显著降低了移植静脉阻塞的风险!

2021-09-27 MedSci原创 MedSci原创

在CABG中,与传统的静脉采集方法相比,非接触技术显著降低了移植静脉阻塞的风险,改善了患者预后。

全世界每年接受冠状动脉旁路移植术(CABG)的患者超过100万。其中大隐静脉移植仍然是主要的,约占旁路来源的80%。然而,与动脉移植物相比,静脉移植物的闭塞率相对较高。移植静脉阻塞在1个月时为5%至13%,在1年内为10%至15%。

这带来了挑战,因为移植物闭塞是心绞痛复发和需要重复血运重建的主要原因。为了降低移植静脉阻塞的发生率,1996年引入了非接触式静脉采集技术,该技术有助于将手术采集期间的静脉损伤降至最低。相比之下,静脉移植物的外膜通常在常规采集过程中进行解剖,然后进行手动扩张。然而,关于非接触技术的临床益处和普遍性的证据还很缺乏。

以前的单中心研究主要在高收入国家进行,观察到使用非接触技术采集的静脉移植物闭塞明显减少,2年闭塞率为5.5%。为了研究我国CABG手术使用非接触技术的静脉闭塞率,来自国家血管疾病中心阜外医院的专家团队开展了相关研究,结果发表在Circulation杂志上。

从2017年4月至2019年6月,研究人员以1:1的比例随机分配了7家医院2655名接受CABG的患者进行非接触技术或常规静脉采集方法。主要转归是3个月时CT血管造影显示的静脉移植物闭塞,次要转归包括12个月的静脉移植物闭塞、心绞痛复发和主要不良心脑血管事件。广义估计方程模型用于解释来自同一患者的移植物的聚集效应。

在随访期间,2533名(96.0%)参与者在CABG后3个月接受了CTA检查,2434名(92.2%)参与者在12个月接受了CTA。无接触组在3个月(2.8% vs 4.8%;OR=0.57[95%CI,0.41-0.80];P<0.001)和12个月(3.7% VS 6.5%;OR=0.56[95%CI,0.41-0.76];P<0.001)的移植静脉阻塞率均显著低于常规组,分别降低43%与44%。

主要结果的亚组分析

12个月时,非接触组心绞痛复发率也较低(2.3% VS 4.1%;OR=0.55[95%CI,0.35–0.85];P<0.01)。两组主要不良心脑血管事件发生率无显著差异。在3个月的随访中,非接触技术与较高的腿部创伤手术干预率相关(10.3% VS 4.3%;OR=2.55[95%CI,1.85–3.52];P<0.001)。

综上,在CABG中,与传统的静脉采集方法相比,非接触技术显著降低了移植静脉阻塞的风险,改善了患者预后。

 

参考文献:

No-Touch Versus Conventional Vein Harvesting Techniques at 12 Months After Coronary Artery Bypass Grafting Surgery: Multicenter Randomized, Controlled Trial. https://doi.org/10.1161/CIRCULATIONAHA.121.055525

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    2022-07-20 tomyang96
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    2021-09-27 谭桂峰

    移植物闭塞是心绞痛复发和需要重复血运重建的主要原因。

    0

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拓展阅读

Eur Heart J:左主干冠状动脉疾病患者PCI和CABG疗效比较

在这项非随机研究中在对已知和未知混杂因素进行多变量调整后,与PCI相比,LMCA患者接受CABG治疗后与更低的死亡率和更低的MACCE发生率相关。

AHA 2022:在冠状动脉旁路移植术(CABG)中桡动脉与右胸内动脉/隐静脉的15年预后比较(RAPCO-RITA研究)

RAPCO研究,是比较冠状动脉旁路移植术(CABG)中桡动脉与右胸内动脉/隐静脉的对比。10年的随访结果,发表在2020年Circulation上。显示,桡动脉和游离右侧乳内动脉的10年通畅率分别为8

Stroke:无症状颈动脉狭窄患者进行CABG合并CEA术的5年结果

在5年的随访中,与单独的CABG相比,尽管在统计上并不显著,联合CABG+CEA与较高的卒中或死亡比率有关。

JACC:合并糖尿病的多血管病变患者选择CABG和PCI因人而异

FREEDOM研究后续随访近8年的数据显示,对于合并糖尿病的多血管病变患者,冠状动脉旁路手术(CABG)优于经皮冠状动脉介入治疗(PCI)。

EHJ:三血管或左主干患者手术怎么选?选PCI还是CABG还真有讲究!

在3VD和/或LMCAD患者中,MAG可能是更理想的CABG配置,以实现比PCI更低的长期全因死亡率。

JACC:肾功能轻度受损对接受多血管冠状动脉血运重建手术的患者预后没有影响

在通过PCI或CABG进行血管重建的多血管疾病患者中,肾功能轻度下降与主要综合结果和死亡率的风险增加没有明显关系。