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- W2336675800 abstract "目的:探讨重症监护病房(ICU)慢阻肺急性加重期(AECOPD)机械通气患者气道炎症反应与预后的关系。方法69例 AECOPD 机械通气患者按预后分为存活组(36例)和死亡组(33例),采用自行设计的呼出气冷凝液(EBC)收集器收集机械通气1、3、5和7 d 呼气端的 EBC,用化学荧光法测定 EBC 中过氧化氢(H2 O2)浓度,用放射免疫分析法测定 EBC 中肿瘤坏死因子(TNF-α)含量。结果①存活组 EBC 中 H2 O2和 TNF-α含量逐渐下降,机械通气3、5、7 d 较1 d 明显降低 H2 O2(μmol/ L):0.12±0.04、0.08±0.02、0.03±0.01比0.22±0.14,TNF-α(ng/ L):15.14±3.11、12.24±2.37、9.76±1.89比18.54±2.59,均 P〈0.05。②死亡组 EBC 中 H2 O2:和 TNF-α含量逐渐升高,机械通气第五天、第7天 EBC 中 H2 O2浓度较1 d 明显升高(0.38±0.11、0.44±0.12比0.24±0.03,均 P〈0.05);机械通气3、5和7 d TNF-α含量较1 d 明显升高(18.3 ± 2.56、21.3 ± 2.34、29.7 ± 3.21比15.52±3.14,均 P〈0.05);7 d 时 EBC 中 H2 O2和 TNF-α含量较3 d、5 d明显升高(均 P〈0.05)。③存活组和死亡组机械通气患者 EBC 中 H2 O2浓度和 TNF-α含量与急性生理学与慢性健康状况评分系统(APACHE Ⅱ、Ⅲ)评分均无相关性(均 P〉0.05)。结论 EBC 中 H2 O2水平和 TNF-α含量的高低与预后有关,故可作为 AECOPD 机械通气患者气道炎症反应的重要监测指标,并可作为评估其治疗和预后的重要监测指标。" @default.
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- W2336675800 date "2015-01-01" @default.
- W2336675800 modified "2023-10-17" @default.
- W2336675800 title "AECOPD 机械通气时呼出气冷凝液 H2 O2和 TNF-α水平的监测及意义" @default.
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