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Schuba, Barbara; Michel, Sebastian; Guenther, Sabina; Weig, Thomas; Emser, Jonas; Schneider, Christian; Kneidinger, Nikolaus; Strueven, Anna; Sisic, Alma; Hagl, Christian; Schramm, Rene (2019): Lung transplantation in patients with severe pulmonary hypertension-Focus on right ventricular remodelling. In: Clinical Transplantation, Vol. 33, No. 6, e13586
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Abstract

Objective This study was meant to analyse the centre experience of the Munich Lung Transplant Group in lung transplantation of patients with severe pulmonary hypertension. Outcome data focus on survival and right heart remodelling. Methods All patients receiving a lung transplant between 10/2010 and 08/2016 were retrospectively analysed (n = 343). Patients were categorised into individuals with or without severe pre-operative pulmonary hypertension (PH;mPAP >= 35 mm Hg or mPAP >= 25 mm Hg with cardiac index < 2.0 L/min/m(2)). Among those, patients with severe PH secondary to lung disease (Nice Class III) were compared with patients with severe PH due to idiopathic PH (IPAH;Nice Class I). All surviving patients with severe PH were electively followed up by echocardiography. Results Kaplan-Meier survival probabilities after lung transplantation of each group according to pre-operative mPAP values showed no statistically significant difference (P = 0.14 by log-rank test). Lung transplantation in severe PH patients led to marked right ventricular remodelling as indicated by significantly increased tricuspid annular plane systolic excursion (TAPSE) (P = 0.002), decreased right ventricular end-diastolic dimensions (P = 0.001) and overall reduction in tricuspid valvular regurgitation, when compared to pre-operative assessments. Conclusion Sequential bilateral lung transplantation (BLTx) in patients with severe pulmonary hypertension is a feasible treatment option in this high-risk group in experienced high-volume centres. Lung transplantation allows for resolution of secondary right heart failure in these patients.