[Clinical study of survival time for chronic liver failure.].

OBJECTIVE: To identify independent risk factors influencing the survival time of patients with chronic liver failure and construct a predictive model. METHODS: Retrospective analysis was applied to clinical data of 362 patients with chronic liver failure treated with artificial liver in Tianjin third centre hospital between May 2002 and May 2007. Data were analyzed with SPSS 13.0 statistic software, t test and rank test were used on quantitative data, chi-square test was used on qualitative data, Cox regression analysis was used to select the independent risk factors influencing the survival time. According to independent risk factors from Cox regression model, a prognostic model was established. RESULTS: 1. Independent risk factors (P less than 0.05) influencing the survival time were: Child-Pugh score, bilirubin separation ALT, ascites, arginine, age, tyrosine and serum sodium. 2. By receiver operating characteristic curves (ROC) analysis, the area under ROC (AUR) to predict the outcome of chronic liver failure patients was 0.782, and the cutoff score was 27.69. CONCLUSIONS: 1. Child-Pugh score, bilirubin separation ALT, ascites, arginine, age, tyrosine and serum sodium are independent risk factors affecting survival time of patients with chronic liver failure. 2. Cox model we constructed can reliably predict the survival time of patients with chronic liver failure.

[Preliminary analysis of treatment in 32 patients with critical severe acute respiratory syndrome].

OBJECTIVE: To summarize the experience of treatment in 32 critical severe acute respiratory syndrome (SARS) patients. METHODS: The age of 32 patients ranged from 19 to 72 years, the average was 43.06 years. Among them, 13 patients were having serious primary diseases, i.e. cardio-cerebral-vascular disease in 9 patients, diabetes in 2 patients, renal dysfunction in 1 patient, and chronic obstructive pulmonary disease (COPD) in 1 patient. The treatment included antiviral agents, glucocorticoid, mechanical ventilation, antibiotics and immunologic enhancement, etc. Cure rate, mortality and complications were analyzed. RESULTS: Among 32 patients, 24 were cured, 2 died of respiratory failure, 6 died of their primary diseases, and the overall mortality was 25.00 percent. Superimposed infection occurred in 12 patients, and among 17 patients who required noninvasive ventilation, 3 patients were complicated by lung injury (mediastinal emphysema, pneumothorax). In addition, hyperglycemia was found in 4 patients, upper intestinal hemorrhage occurred in another 4 patients and cardiac failure occurred in 6 patients. CONCLUSION: The treatment of the pre-existing diseases should be emphasized in the treatment of critical SARS. Glucocorticoid should not be used for a long-term. Vigilance should be paid to avoid lung injury during mechanical ventilation.