Crit Care Med:经颅多普勒微栓子监测脑钝挫伤性卒中危险分层

2017-07-04 MedSci MedSci原创

本研究旨在研究使用床旁无创经颅多普勒超声探查微血栓,从而对脑部钝挫伤患者入院后24小时进行卒中危险评分。经颅多普勒超声检查给卒中患者入院后24小时的治疗和预防提供了极佳窗口。

本研究旨在研究使用床旁无创经颅多普勒超声探查微血栓,从而对脑部钝挫伤患者入院后24小时进行卒中危险评分。经颅多普勒超声检查给卒中患者入院后24小时的治疗和预防提供了极佳窗口。

对一级创伤中心过去10年时间1146例血管钝挫伤患者进行回顾性队列研究。

我们的研究共纳入1146名钝性脑血管损伤患者,其中54名(4.7%)患者在入院后前24小时被有经验的医护人员发现。单纯颈内动脉损伤的患者中,经颅多普勒表现为阳性结果(至少探测到1枚血栓)的患者有5/9发生迟发型卒中,其中248名患者中的46名未发生(风险比,5.05;95% CI,1.41-18.13)。对于持续性颈内动脉损伤伴或不伴其他血管损伤的患者,经颅多普勒超声检查的确可以对同侧或对侧颈动脉损伤等级进行预测(调整后的风险比,2.91;95% CI,1.42-5.97)。单纯椎动脉损伤的患者在发生卒中之前,经颅多普勒超声并未检测到微血栓的存在,这也说明经颅多普勒检查结果阳性和椎动脉损伤伴或不伴其他血管损伤的患者发生卒中并无明显相关性(风险比,0.90;95% CI,0.21-3.83)。

从而我们可以得出结论,颈内动脉损伤引起的微栓子形成确实和脑卒中的风险增高有关,但对椎动脉损伤来说并不适应。

原始出处:

Bonow RH1, Witt CE, et al. Transcranial Doppler Microemboli Monitoring for Stroke Risk Stratification in Blunt Cerebrovascular Injury. Crit Care Med. 2017 Jun 24. doi: 10.1097/CCM.0000000000002549.

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