STROKE:颈内动脉迂曲对机械取栓术预后有影响

2022-08-02 影像小生 MedSci原创

ICA迂曲与FPE的可能性降低和机械取栓后颅内出血的风险增加独立相关。

血管解剖弯曲是血栓切除失败的常见原因在弯曲的血管中,支架回收器(SRs)会被拉伸,在回收过程中可能会崩溃,从而导致与血栓失去相互作用。血管弯曲也减少了抽吸导管尖端与血栓的接触,并损害了血栓的抽吸弯曲降低了SR取栓和接触吸入(CA)导管的性能,增加了所需的设备通过次数,降低了实现完全再灌注的可能性。

虽然颈内动脉(ICA)迂曲在机械取栓时是一个重大的挑战,但很少有研究检查颈内动脉迂曲对机械取栓结果的影响。

Junpei Koge等在STROKE杂志刊发文章,研究了ICA弯曲度与MT预后之间的关系。

在一项以登记为基础的医院队列研究中,连续尝试机械取栓的前循环卒中患者被分为两组:颅外或海绵窦段颈动脉迂曲组(迂曲组)和非迂曲组(非迂曲组)。颅外段ICA弯曲被定义为存在盘绕或扭结。海绵窦段颈动脉迂曲由后膝后侧偏斜或类似simmons型导管的形状确定。结果包括首通效应(FPE;首次通过后延长脑梗死溶栓评分2c/3)、预后良好(3个月改良Rankin Scale评分0-2)、颅内出血。

结果如下

在370例患者中,124例为迂曲组(颅外ICA迂曲35例;海绵窦段颈动脉弯曲,70;两个部位都有弯曲,19)。

迂曲组比非迂曲组有更高比例的女性和心房纤颤。

在迂曲组中获得FPE的频率低于非迂曲组(21% vs 39%;调整后的优势比为0.45 [95% CI, 0.26-0.77])。

根据颈内动脉(ICA)迂曲位置的手术结果。根据ICA迂曲位置的结果显示(A)首次通过后的再灌注状态,(B)最终的再灌注状态,和(C)颅内出血。eTICI提示脑梗死患者溶栓时间延长

1.   ICA曲度与脑梗死≥2b再灌注的患者从穿刺到延长溶栓时间的延长独立相关(β=23.19 [95% CI, 13.44-32.94])。各组之间的良好结果相似(46% vs 48%;P = 0.87)。

2.   颅内出血的频率(54% vs 42%;调整优势比为1.61 [95% CI, 1.02-2.53])和脑实质血肿(11% vs 6%;经调整的优势比(2.41 [95% CI, 1.04-5.58])在迂曲组中较高。

3.   在迂曲组中,接受联合支架取栓和接触吸入取栓术的患者的FPE率与单独接受这两种手术的患者相似(22% vs 19%;P = 0.80)。

4.   然而,在非迂曲组中,接受支架回收和接触吸入联合治疗的患者FPE发生率显著升高(52% vs 35%;P = 0.02)。

根据一线机械取栓策略的首通效应。(A)颈内动脉非迂曲组和(B)颈内动脉迂曲组中根据一线机械取栓策略的首通率

ICA迂曲与较低的FPE发生率和较高的MT后脑出血发生率独立相关ICA迂曲对症状性脑出血及预后无显著影响。对于迂曲的ICA,没有观察到联合SR和CA的协同效应,目前所有MT策略中FPE的发生率同样低。为了改善MT的治疗结果,需要开发有希望治疗迂曲血管患者的设备和技术。

 

原文出处

Internal Carotid Artery Tortuosity: Impact on Mechanical Thrombectomy

https://www.ahajournals.org/doi/10.1161/STROKEAHA.121.037904

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