Clinical outcomes after lung transplantation for fibrosis in telomerase related genes mutation carriers

Carriers of telomerase related genes (TRG) mutation seem to present a worst prognosis with more common hematological complications after lung transplantation (LT) for pulmonary fibrosis. The aim of this study was to describe the outcomes after LT and identify pre-LT prognosis factors in a multicenter cohort of lung transplant recipients with TRG mutation.We retrospectively reviewed all identified patients with pathogenic TRG mutation (n=38; TERT, n=22, TERC, n=10, RTEL1, n=6) who received LT in France, Switzerland and Belgium between 2009 and 2018. The median age at LT was 54 years (46-59), 70% were male, and 60% had idiopathic pulmonary fibrosis (IPF). At diagnosis of pulmonary fibrosis, 84% had a hematological disease, including 8 with myelodysplasia, and 45% had a liver disease. After a median follow up of 2.2 years (1,2-3,7), 16 received a single LT, 22 a double LT and 2 a combined liver-LT.The overall post-LT median survival was 3.75 years (1.8-NA). Patients with myelodysplasia before LT had an increased risk of death after LT (HR= 4.12 (1.47-11.53) p=0.007). After LT, all patients showed anemia, 70% thrombocytopenia, and 60% neutropenia. Four patients showed severe liver disease: portal hypertension, cirrhosis. Sixteen patients (42%) experienced acute renal failure and 18 (47%) developed chronic renal insufficiency during follow up. Four developed chronic lung allograft dysfunction.Overall survival after LT supports LT in TRG mutation carriers. Careful evaluation at dia...
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Transplantation Source Type: research