乳酸/清蛋白比值与脓毒症患者MODS的发生率及病死率的相关性

目的研究乳酸/清蛋白比值与严重脓毒症或感染性休克患者多器官功能障碍综合征(MODS)发生率及病死率的相关性。方法对2012年1月—2013年9月某院入住重症监护病房(ICU)第1天出现严重脓毒症或感染性休克的54例患者的基本资料进行分析。结果入住ICU第1天有30例(55.56%)患者伴有MODS,第2天有26例(53.06%)患者伴有MODS;入住ICU第1、2天乳酸/清蛋白比值在MODS组和非MODS组之间比较,差异均具有统计学意义(均P0.05)。多因素logistic回归分析提示,乳酸/清蛋白比值、PaO_2/FiO_2、APACHEⅡ评分是严重脓毒症患者预测MODS发生的独立危险因素。乳酸/清蛋白比值在MODS组和非MODS组、死亡组和非死亡组之间比较,差异均具有统计学意义(均P0.05);乳酸/清蛋白比值与APACHEⅡ评分、PaO_2/FiO_2比值呈现相关性,APACHEⅡ评分越高、PaO_2/FiO_2越低,乳酸/清蛋白比值越高。运用ROC曲线下面积分析入住ICU第1天的乳酸/清蛋白比值预测MODS发生率和病死率为0.85、0.84;乳酸/清蛋白比值1.735预测MODS发生率的敏感性、特异性、阳性预测值及阴性预测值分别为80.00%、79.17%、82.67%、75.92%,预测病死率的敏感性、特异性、阳性预测值及阴性预测值分别为100.00%、51.02%、17.23%、100.00%。结论乳酸/清蛋白比值与严重脓毒症或感染性休克患者MODS发生率及病死率密切相关。

Correlation between lactate/albumin ratio level and incidence of multiple organ dysfunction syndrome as well as mortality in patients with sepsis

ObjectiveTo study the correlation between lactate/albumin ratio level and incidence of multiple organ dysfunction syndrome (MODS) as well as mortality in patients with severe sepsis or septic shock.MethodsIn January 2012 September 2013, 54 patients who were admitted to the intensive care unit(ICU) of a hospital developed severe sepsis and septic shock on the first day of admission, clinical data of patients were analyzed. ResultsOn the first and second days of admission, 30（55.56%）and 26（53.06%）patients developed MODS；lactate/albumin ratio between MODS group and non MODS group on the first and second days of admission were both significantly different (both P＜0.05). Multivariate logistic regression analysis showed that lactate/albumin ratio, oxygenation index (PaO2/FiO2), as well as acute physiology and chronic health evaluation (APACHE Ⅱ) were independent risk factors for predicting MODS in patients with severe sepsis. Lactate/albumin ratios between MODS group and non MODS group, death group and non death group were both significantly different (both P＜0.05); lactate/albumin ratio was correlated with APACHE Ⅱand PaO2/FiO2, the higher the APACHE Ⅱ score and the lower the PaO2/FiO2, the higher of lactate/albumin ratio. The area under the receiver operating curve (ROC curve) analysis showed that incidence and mortality of MODS on the first day of admission predicted by lactate /albumin ratio were 0.85 and 0.84 respectively; sensitivity, specificity, positive predictive value, and negative predictive value of occurrence of MODS predicted by lactate /albumin ratio＞1.735 were 80.00%, 79.17%, 82.67%, and 75.92% respectively, sensitivity, specificity, positive predictive value, and negative predictive value of mortality were 100.00%, 51.02%, 17.23%, and 100.00% respectively. ConclusionLactate/albumin ratio level is closely correlated with incidence and mortality of MODS in patients with severe sepsis or septic shock.