颈动脉内膜切除术的术中经颅多普勒监测

颈动脉内膜切除术(carotid endarterectomy,CEA)可有效治疗有症状颈动脉狭窄,但围手术期卒中是CEA最重要的并发症.术中和术后产生的微栓子是造成围手术期卒中的最主要原因.另外,术中夹闭颈动脉所敛的低灌注、术后过度灌注综合征以及术后颈动脉再狭窄或闭塞,都是围手术期卒中的原因.作为一项尤创、实时的临测工具,经颅多普勒(transcranial Doppler,TCD)可广泛应用于CEA的术中监测,能发现围手术期各种血流变化和微栓子的产生,有效预测围手术期卒中的发生,降低围手术期卒中风险.

Transcranial Doppler monitoring during carotid endarterectomy

Carotid endarterectomy (CEA) can effectively treat symptomatic carotid stenosis, however, perioperative stroke is the most important complication of CEA. The microemboli generated before and after the operation are the most important reason for causing perioperative stroke. In addition, the hypoperfusion and postoperative hyperperfusion syndrome caused by intraoperative clipping of carotid artery, as well as carotid restenosis or occlusion after CEA are all the causes of perioperative stroke. As a non-invasive, real-time monitoring tool, transcranial Doppler (TCD) can be widely used in intraoperative monitoring of CEA, It is able to detect a variety of perioperative blood flow changes and the production of microemboli, and thus effectively predicts the occurrence of perioperative stroke, and decreases the risks of perioperative stroke.