• Yi Yang, Ling Liu, Bo Zhao, Mao-qin Li, Bin Wu, Zheng Yan, Qin Gu, Hua Sun, and Hai-bo Qiu.
• Department of Critical Care Medicine, Zhong-Da Hospital and School of Clinical Medcine, Southeast University, Nanjing 210009, China. yiyiyang2004@yahoo.com.cn
• Zhonghua Wai Ke Za Zhi. 2006 Sep 1; 44 (17): 1212-5.

ObjectiveTo explore the relationship between the adrenal function and the prognosis of acute respiratory distress syndrome (ARDS).MethodsOne hundred and fifty-eight patients with ARDS were enrolled in this study and were divided into two groups based on the prognosis: survival group and death group. Every patient was given one shot of corticotrophin 250 microg intravenously, plasma cortisol level was detected by radio-immunoassay before the shot (T0) and 30 minutes (T30) and 60 minutes (T60) after. And meanwhile the following parameters in the patients were recorded: age, APACH II, heart rate, mean arterial pressure, PaO(2)/FiO(2), arterial pH, hemoglobin, platelets and WBC, the number of failed organ and 28-day mortality. Relative adrenal insufficiency was defined as the difference between T0 and the highest value of T30 or T60 (DeltaTmax) ResultsThe total 28-day mortality was 54.4% (86/158) and the total incidence of relative adrenal insufficiency was 42.7% (68/158). The incidence of relative adrenal insufficiency in death group was significantly higher than that in survival group (62.8% vs 19.4%, P < 0.01). The 28-day mortality in patients complicated with relative adrenal insufficiency was significantly higher than that in those did not (76.5% vs 36.8%, P < 0.001). The area under the ROC curve for DeltaTmax was 0.655. With the multivariate analysis, the number of failed organ and relative adrenal insufficiency were independent risk factors of the death in patients with ARDS.ConclusionsAdrenal function is valuable in predicting the prognosis of the ARDS.

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