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Postoperative Trapped Lung After Orthotopic Liver Transplantation is a Predictor of Increased Mortality

Pleural effusions are a common complication of orthotopic liver transplantation (OLT), and chronic post-OLT pleural effusions have been associated with worse outcomes. Furthermore, "trapped lung" (TL), defined as a restrictive fibrous visceral pleural peel preventing lung re-expansion, may...

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Published in:Transplant international 2022-05, Vol.35, p.10387-10387
Main Authors: Cuk, Natasha, Melamed, Kathryn H, Vangala, Sitaram, Salah, Ramy, Miller, W Dwight, Swanson, Sarah, Dai, David, Antongiorgi, Zarah, Wang, Tisha, Agopian, Vatche G, Dinorcia, Joseph, Farmer, Douglas G, Yanagawa, Jane, Kaldas, Fady M, Barjaktarevic, Igor
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Language:English
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Summary:Pleural effusions are a common complication of orthotopic liver transplantation (OLT), and chronic post-OLT pleural effusions have been associated with worse outcomes. Furthermore, "trapped lung" (TL), defined as a restrictive fibrous visceral pleural peel preventing lung re-expansion, may have prognostic significance. We performed a retrospective analysis of adult OLT recipients over a 9-year period at UCLA Medical Center. Post-OLT patients with persistent pleural effusions, defined by the presence of pleural fluid requiring drainage one to 12 months after OLT, were included for analysis. Outcomes for patients with and without TL were compared using univariate and multivariate analysis. Of the 1722 patients who underwent OLT, 117 (7%) patients met our criteria for persistent postoperative pleural effusion, and the incidence of TL was 21.4% (25/117). Compared to patients without TL, those with TL required more surgical pleural procedures (OR 59.8, 95%CI 19.7-181.4, < 0.001), spent more days in the hospital (IRR 1.56, 95%CI 1.09-2.23, = 0.015), and had a higher risk of mortality (HR 2.47, 95%CI 1.59-3.82, < 0.001) following transplant. In sum, we found that post-OLT TL was associated with higher morbidity, mortality, and healthcare utilization. Future prospective investigation is warranted to further clarify the risk factors for developing postoperative pleural effusions and TL.
ISSN:1432-2277
0934-0874
1432-2277
DOI:10.3389/ti.2022.10387