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| Item Type: | Article |
|---|---|
| Title: | Total bilirubin as a marker for hemolysis and outcome in patients with severe ARDS treated with veno-venous ECMO |
| Creators Name: | Bünger, V., Menk, M., Hunsicker, O., Krannich, A., Balzer, F., Spies, C.D., Kuebler, W.M., Weber-Carstens, S. and Graw, J.A. |
| Abstract: | BACKGROUND: Hemolysis is a common complication in critically ill patients with sepsis, acute respiratory distress syndrome (ARDS) or therapy with extracorporeal membrane oxygenation (ECMO). Heme degradation product bilirubin might accumulate in conditions of significant hemolysis. In patients with ARDS and therapy with veno-venous ECMO (vvECMO), the prognostic potential of elevated initial total bilirubin (tBili) was investigated. METHODS: Retrospective analysis of patients with ARDS and vvECMO-therapy (n = 327) admitted to a tertiary ARDS center. A tBili cut-off value was determined by binary recursive partitioning. Baseline characteristics were compared and relevant variables were included in a multivariate logistic regression model with backward variable selection. Primary endpoint was survival within 28 days analyzed with Kaplan-Meier-curves and cox regression. Secondary endpoints included failure free composites for organ dysfunction, renal replacement therapy (RRT), vasopressor therapy and ECMO within 28 days and were compared using competing risk regression analysis. RESULTS: A cut-off value of 3.6mg/dl divided the cohort for ICU mortality (tBili ≤ 3.6mg/dl: 46% (n = 273) vs. tBili > 3.6mg/dl: 78% (n = 54), p < 0.001). The group with tBili > 3.6mg/dl showed a higher 28-day mortality (HR 3.03 [95%CI 2.07-4.43], p < 0.001) and significantly lower chances of successful recovery from organ dysfunction (subdistribution hazard ratio (SHR) 0.29 [0.13-0.66], p < 0.001), RRT (SHR 0.34 [0.14-0.85], p = 0.02), and ECMO (SHR 0.46 [0.25-0.86], p = 0.015) compared to the group with tBili ≤ 3.6mg/dl. Recovery from vasopressor therapy did not differ between groups (SHR 0.63 [0.32-1.24], p = 0.18). CONCLUSION: Patients with ARDS, vvECMO-therapy and tBili > 3.6mg/dl had a higher mortality and lower chances for recovery from organ dysfunction, RRT, and ECMO within 28 days. The tBili-cut-off value may be useful to identify patients at risk for unfavorable outcomes. |
| Keywords: | Total Bilirubin, Hemolysis, Extracorporeal Membrane Oxygenation, Acute Lung Injury, Hyperbilirubinemia |
| Source: | BMC Anesthesiology |
| ISSN: | 1471-2253 |
| Publisher: | BioMed Central |
| Volume: | 25 |
| Number: | 1 |
| Page Range: | 121 |
| Date: | 13 March 2025 |
| Official Publication: | https://doi.org/10.1186/s12871-025-02988-1 |
| PubMed: | View item in PubMed |
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