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不同水平呼气末正压对重症急性左心衰竭的影响 被引量:2

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摘要 [目的]探讨不同水平呼气末正压对重症急性左心衰的影响。[方法]将90例行机械通气的重症急性左心衰患者随机分成低呼气末正压组(A组)45例和高呼气末正压组(B组)45例,两组的PEEP(呼气未正压)均先以生理性3 cm H2O开始上调。A组维持在5 cm H2O,B组维持在10 cmH2O。比较两组血气分析结果、EVLWI(血管外肺水指数)、CI(心排血指数)、CVP(中心静脉压)、MAP(平均动脉压)、HR(心率)变化。[结果]4h后两组血气分析结果均较前改善,并且两组的PaO2、PaC2O差值及pH值差值比较具有显著性差异(P<0.05);4 h、12 h后两组的EVLWI(血管外肺水指数)差值比较均具有显著性差异(P<0.05);其他的观察指标间差异无显著性(P>0.05)。[结论]早期机械通气对急性肺水肿的治疗是有效的,选择稍高水平的PEEP有利于缩短脱机时间、改善血流动力学情况及心功能。
出处 《广西中医药大学学报》 2014年第1期7-9,共3页 Journal of Guangxi University Of Chinese Medicine
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