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选择性脑灌注最适温度的实验研究 被引量:3

Experimental Study of Optimum Hypothermia for Selective Cerebral Perfusion
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摘要 目的 研究选择性脑灌注最适宜温度范围。方法 应用选择性脑灌注模型对 2 4只杂种狗在适宜灌注流量和灌注压下改变不同温度进行选择性脑灌注 90min后 ,通过上矢状窦 (SSS)内不同阶段的静脉血乳酸测定、脑体感诱发电位 (SEP)的连续监测及脑皮质组织病理学的检查来评估脑保护的情况。结果 在 2 0~ 32℃范围内 ,未出现明显的脑功能及组织的不可逆损害。结论 选择性脑灌注在适宜的灌注流量及压力下 ,其温度维持在 2 0~32℃对脑保护是安全有效的 。 OBJECTIVE Selective perfusion(SCP) for hypothermic cerebral protection in cardiopulmonary bypass .METHODS This study aimed at investigating the range of optimum hypothermia for cerebral protection by performing selective cerebral perfusion in 24 mongrel dogs for 90 minutes at different temperatures.RESULTS To evaluate the results of cerebral protection,venous blood lactate levels during different periods in superior sagittal simus (SSS) were measured,cerebral cortex histopathology was evaluated and somatosensory evoked potential(SEP) was monitored continuously.CONCLUSION Those results suggest that when selective cerebral perfusion was performed,with moderate flow rate and pressure,the safe and effective range of hypothemia for brain protection is from 20℃ to 32℃. Compared with deep hypothermia,moderate hypothermia can decrease the damage to brain obviously.
出处 《中国体外循环杂志》 2004年第3期159-162,147,共5页 Chinese Journal of Extracorporeal Circulation
关键词 选择性脑灌注 脑保护 实验研究 脑皮质 适宜 灌注压 上矢状窦 体感诱发电位 静脉血 灌流 hypothermia cerebral protection cardiopulmonary bypass selective cerebral perfusion
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同被引文献40

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