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Journal Article
Observational Study
Effect of Acute Exacerbation of Idiopathic Pulmonary Fibrosis on Lung Transplantation Outcome.
Chest 2018 October
BACKGROUND: Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) has an expected median survival of 3 months. Lung transplantation is a potentially lifesaving therapy for AE-IPF. However, the current knowledge of transplantation outcomes during AE-IPF is limited to a few small retrospective studies, reporting only 1-year post-transplantation survival.
METHODS: Study population included patients with IPF consecutively listed for lung transplantation at a single institution between the years 2012 and 2016. We collected lung allocation score (LAS), hospitalization, and survival data. The primary outcome was survival among patients transplanted during stable IPF vs during AE-IPF.
RESULTS: Of 89 patients with IPF listed for lung transplantation, 52 were transplanted during stable IPF and 37 were hospitalized due to AE-IPF. Of these 37 patients, nine died before transplantation, and 28 were transplanted during AE-IPF. Fifty percent of patients transplanted during AE-IPF died in a mean follow-up of 1.6 ± 1.2 years compared with 12% of patients transplanted during stable IPF who died in a mean follow-up of 2.6 ± 1.2 years. The Kaplan-Meier survival curves post-transplantation after 1 and 3 years for patients who were transplanted during stable IPF were 94% and 90% vs 71% and 60% in patients who were transplanted during AE-IPF (P = .0001). LAS above 80 conferred a 3-year hazard ratio for mortality of 5.7 vs LAS lower than 80 (95% CI, 2.33-14.0; P < .0005).
CONCLUSIONS: Patients with IPF transplanted during AE-IPF had significantly worse short-term and long-term survival compared with patients transplanted during stable IPF. Patients with AE-IPF and very high LAS may not experience the survival advantage expected from lung transplantation.
METHODS: Study population included patients with IPF consecutively listed for lung transplantation at a single institution between the years 2012 and 2016. We collected lung allocation score (LAS), hospitalization, and survival data. The primary outcome was survival among patients transplanted during stable IPF vs during AE-IPF.
RESULTS: Of 89 patients with IPF listed for lung transplantation, 52 were transplanted during stable IPF and 37 were hospitalized due to AE-IPF. Of these 37 patients, nine died before transplantation, and 28 were transplanted during AE-IPF. Fifty percent of patients transplanted during AE-IPF died in a mean follow-up of 1.6 ± 1.2 years compared with 12% of patients transplanted during stable IPF who died in a mean follow-up of 2.6 ± 1.2 years. The Kaplan-Meier survival curves post-transplantation after 1 and 3 years for patients who were transplanted during stable IPF were 94% and 90% vs 71% and 60% in patients who were transplanted during AE-IPF (P = .0001). LAS above 80 conferred a 3-year hazard ratio for mortality of 5.7 vs LAS lower than 80 (95% CI, 2.33-14.0; P < .0005).
CONCLUSIONS: Patients with IPF transplanted during AE-IPF had significantly worse short-term and long-term survival compared with patients transplanted during stable IPF. Patients with AE-IPF and very high LAS may not experience the survival advantage expected from lung transplantation.
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