关键词: 颈动脉内膜切除术, 残端压, 体感诱发电位, 运动诱发电位

Abstract: Objective To investigate the value of stamp pressure(SP), somatosensory and motor evoked potentials(SEP,MEP) monitoring in carotid endarterectomy. Methods 19 patients with carotid endarterectomy were retrospectively analyzed.SP, SEP and MEP were monitored during the operation.National Institutes of Health Stroke Scale (NIHSS) and Modified Rankin Scale (mRS) were used to evaluate the neurological function before and 6 months after surgery. Results Intraluminal shunting was not performed in 10 patients with normal SP, SEP and MEP.However, intraluminal shunting technique was used in 5 patients (SP<50 mmHg and SEP fluctuation decreased by 50％) and 3 patients (SP≥50 mmHg and SEP fluctuation decreased by 50％).1 patient showed the fluctuation of MEP decreased by 50％, while SP and SEP was normal, no shunting was performed.All patients were successfully operated, and no mortality occurred.The mRS score, not the NIHSS score, revealed statistically difference between preoperation and 6 months after surgery (P<0.05). Conclusion The combination of SP, SEP and MEP monitoring maybe useful for preventing ischemic stroke after carotid endarterectomy, increasing the safety of surgery.

Key words: Carotid endarterectomy, Stamp pressure, Somatosensory evoked potential, Motor evoked potential