• D G Nichols, L K Walker, J R Wingard, K S Bender, M Bezman, M L Zahurak, S Piantadosi, M Frey-Simon, and M C Rogers.
• Department of Anesthesiology/Critical Care Medicine, Johns Hopkins Medical Institutions, Baltimore, MD.
• Crit. Care Med. 1994 Sep 1;22(9):1485-91.

ObjectiveTo determine factors associated with acute respiratory failure after bone marrow transplantation which can be identified before the onset of lung disease.DesignPopulation-based, retrospective study.SettingA referral-based pediatric intensive care unit and bone marrow transplant center.PatientsThirty-nine patients with lung disease (abnormal chest radiograph or a need for supplemental oxygen) were identified from a group of 318 pediatric bone marrow transplant patients from 1978 to 1988. Thirty-four of 39 patients with complete data were further classified into patients with mild lung disease (recovery without needing endotracheal intubation, n = 16) and patients with acute respiratory failure (requirement for endotracheal intubation, n = 18).InterventionsRegression analyses were performed to define risk factors for development of respiratory failure (multivariate logistic regression) and for a shortened interval between the identification of lung disease and respiratory failure (Cox proportional hazards analysis).Measurements And Main ResultsNinety-three percent (15/16) of patients with mild lung disease survived. Conversely, only 9% (2/23) of patients with respiratory failure survived. Predictors of respiratory failure included graft vs. host disease (odds ratio 28.3, 95% confidence interval 1.9-421, p = .015), a prelung disease (baseline) circulating creatinine concentration of > 1.5 mg/dL (> 132.6 mumol/L) (odds ratio 28.4, 95% confidence interval 1.4-577, p = .029), and male gender (odds ratio 14.6, 95% confidence interval 1-210, p = .049). Predictors of a shortened time to onset of respiratory failure included baseline serum creatinine value of > 1.5 mg/dL (> 132.6 mumol/L) (hazard ratio 6.2, 95% confidence interval 1.5-26.5, p = .013) and baseline total bilirubin concentration > 1.4 mg/dL (> 23.9 mumol/L) (hazard ratio 4.5, 95% confidence interval 0.98-20.7, p = .053). The median time to onset of respiratory failure was 4 days in patients with baseline creatinine values > or = 1.5 mg/dL (> 132.6 mumol/L) and 5 days in patients with baseline bilirubin concentrations > or = 1.4 mg/dL (> 23.9 mumol/L) vs. > 26 days in patients with creatinine < 1.5 mg/dL (< 132.6 mumol/L) and > 29 days in patients with bilirubin < 1.4 mg/dL (< 23.9 mumol/L) (Kaplan-Meier analysis).ConclusionsRenal and liver dysfunction preceded clinical evidence of lung disease in bone marrow transplant patients who developed respiratory failure. Lung disease leading to respiratory failure and adult respiratory distress syndrome appears to develop as one component of the multiple organ failure syndrome in pediatric bone marrow transplant patients.

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