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  • Title: Clinical Outcomes After Liver Transplantation in Patients With Portopulmonary Hypertension.
    Author: Cartin-Ceba R, Burger C, Swanson K, Vargas H, Aqel B, Keaveny AP, Heimbach J, Taner T, Nyberg S, Rosen C, Cajigas H, DuBrock H, Krowka MJ.
    Journal: Transplantation; 2021 Oct 01; 105(10):2283-2290. PubMed ID: 33065725.
    Abstract:
    BACKGROUND: Portopulmonary hypertension (POPH) is the presence of pulmonary arterial (PA) hypertension in patients with portal hypertension and is associated with significant morbidity and mortality. In a cohort of POPH patients, we describe the clinical outcomes of POPH patients who underwent liver transplantation (LT). METHODS: Retrospectively collected data from a prospectively assembled cohort of all consecutive POPH adults evaluated in 3 transplant centers from 1996 to 2019. RESULTS: From a cohort of 228 POPH patients, 50 patients underwent LT. Significant hemodynamic improvement after PA-targeted therapy was observed, with 58% receiving only monotherapy pretransplant. After LT, 21 (42%) patients were able to discontinue and remained off PA-targeted therapy. The 1-, 3-, and 5-y unadjusted survival rates after LT were 72%, 63%, and 60%, respectively. An elevated pulmonary vascular resistance (PVR) before LT was associated with worse survival rate (HR, 1.91; 95% CI, 1.07-3.74, P = 0.04). No survival difference was observed in those granted MELD exception or transplants performed before or after the year 2010. CONCLUSIONS: Significant number of POPH patients discontinued PA-targeted therapy after LT. Higher PVR before LT was associated with worse survival, as was monotherapy use. Despite effective PA-targeted therapies, POPH survival outcomes after LT in our cohort were modest and may reflect the need for more aggressive therapy.
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