老年急性呼吸窘迫综合征患者血清可溶性血栓调节蛋白水平变化及临床意义

目的探讨老年急性呼吸窘迫综合征(acute respiratory distress syndrome, ARDS)患者血清可溶性血栓调节蛋白(soluble thrombomodulin, sTM)水平变化及临床意义。方法 138例老年ARDS患者(观察组),根据氧合指数分为轻度组37例,中度组50例,重度组51例,并根据28 d生存状况分为生存组68例和死亡组70例;选择同期体检健康者69例为对照组。检测入选者血清sTM、降钙素原(procalcitonin, PCT)和肿瘤坏死因子-α(tumor necrosis factor-α, TNF-α)水平。绘制ROC曲线,分析sTM、PCT和TNF-α对老年ARDS患者预后的预测价值。结果观察组血清sTM[(116.00±41.53)μg/L]、PCT[(1.38±0.51)μg/L]和TNF-α[(47.59±17.39)ng/L]水平均高于对照组[(20.34±7.62)μg/L、(0.22±0.08)μg/L、(22.63±4.31)ng/L](P<0.05);轻度、中度、重度组患者血清sTM[(74.98±17.91)、(119.33±38.81)、(142.49±32.35)μg/L]、PCT[(0.74±0.37)、(1.44±0.32)、(1.78±0.23)μg/L]、TNF-α[(26.11±7.19)、(47.74±10.35)、(63.02±10.12)ng/L]水平依次增高(P<0.05),生存组患者血清sTM[(89.60±26.84)μg/L]、PCT[(1.16±0.52)μg/L]、TNF-α[(41.97±16.60)ng/L]水平均低于死亡组[(141.65±37.02)μg/L、(1.59±0.40)μg/L、(53.05±16.49)ng/L](P<0.05);当血清sTM、PCT和TNF-α最佳截断值分别为97.18μg/L、1.31μg/L、53.01 ng/L时,预测老年ARDS患者预后的AUC分别为0.871、0.739、0.698,灵敏度分别为0.886、0.829、0.557,特异度分别为0.706、0.674、0.779。结论老年ARDS患者血清sTM、PCT和TNF-α水平明显升高,sTM可作为预测老年ARDS患者预后的标志物。

Changes and clinical significance of serum soluble thrombomodulin level in elderly patients with acute respiratory distress syndrome

GUO Li;JI Hong;ZOU Wailong;YAN Zhihong(Department of Geriatric Medicine , Aerospace Center Hospital, Beijing 100049 , China;Department of Respiration , Aerospace Center Hospital, Beijing 100049 , China)