Published in

Oxford University Press, European Journal of Cardio-Thoracic Surgery, 2023

DOI: 10.1093/ejcts/ezad024

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Comparison of living-donor lobar lung transplantation and cadaveric lung transplantation for pulmonary hypertension

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Abstract Objectives Living-donor lobar lung transplantation (LDLLT) is a life-saving procedure for critically ill patients with various lung diseases, including pulmonary hypertension. However, there are concerns regarding the development of heart failure with pulmonary oedema after LDLLT in which only one or two lobes are implanted. This study aimed to compare the preoperative conditions and postoperative outcomes of LDLLT with those of cadaveric lung transplantation (CLT) in pulmonary hypertension patients. Methods Between 2008 and 2021, 34 lung transplants for pulmonary hypertension, including 12 LDLLTs (five single and seven bilateral) and 22 bilateral CLTs, were performed. Preoperative variables and postoperative outcomes were retrospectively compared between the two procedures. Results Based on the preoperative variables of less ambulatory ability (41.7% vs 100%, p < 0.001), a higher proportion of WHO class 4 (83.3% vs 18.2%, p < 0.001), and higher mean pulmonary artery pressure (74.4 mmHg vs 57.3 mmHg, p = 0.040), LDLLT patients were more debilitated than CLT patients. Nevertheless, hospital death was similar between the two groups (8.3% vs 9.1%, p > 0.99, respectively). Furthermore, the 5-year overall survival rate was similar between the two groups (90.0% vs 76.3%, p = 0.489). Conclusions Although LDLLT patients with pulmonary hypertension had worse preoperative conditions and received smaller grafts than CLT patients, LDLLT patients demonstrated similar perioperative outcomes and prognoses as CLT patients. LDLLT is a viable treatment option for patients with pulmonary hypertension.