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早期机械通气对严重颅脑创伤患者颅内压和脑代谢的影响 被引量:6

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摘要 目的 观察早期机械通气及开颅探查术对严重颅脑创伤患者颅内压 (ICP)、脑灌注压 (CPP)、颈内静脉血氧饱和度 (SjvO2 )及动脉 -颈内静脉血乳酸浓度之差 (VADL)的影响。方法 重型颅脑损伤患者 2 1例 ,入院后给予早期机械通气治疗 ,并在明确诊断后 1h内行开颅探查颅内血肿清除 +去骨瓣减压术。分别于气管插管机械通气前、通气后 10min、通气后 30min、开颅前、开颅后 5个时相点通过侧脑室置管监测ICP ,计算CPP ;同时分别抽取动脉、颈内静脉血行血气分析及乳酸测定。结果 与机械通气前相比 ,机械通气后 10minICP显著降低 (P <0 0 5 ) ,CPP显著升高 (P <0 0 5 ) ,SjvO2 、VADL无显著变化。机械通气后 30min和开颅前ICP、VADL显著升高 (P <0 0 1和P <0 0 5 ) ,CPP、SjvO2 显著降低 (P <0 0 5 ) ,开颅后ICP、VADL较开颅前显著下降 (P <0 0 1和P <0 0 5 ) ,CPP、SjvO2 显著升高 (P <0 0 1)。结论 长时间机械通气治疗不能降低重型颅脑损伤患者ICP、改善脑代谢 ;及时行开颅探查颅内血肿清除术是降低ICP、改善脑代谢的有效方法。
出处 《中国急救医学》 CAS CSCD 北大核心 2005年第3期215-216,共2页 Chinese Journal of Critical Care Medicine
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