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Longitudinal Outcomes and Ribavirin Use in Lung Transplant Recipients with Respiratory Syncytial Virus or Human Metapneumovirus Infection: A Real-World Multicenter Cohort Study
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DOI：10.3390/life16081323.png)
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Abstract
En 中文
Respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) are clinically relevant pathogens in lung transplant (LT) recipients, but their impact on lung function and the benefit of ribavirin remains uncertain. We conducted a prospective multicenter observational cohort study of adult LT recipients with RSV or hMPV infection diagnosed between 2021 and 2024 at five centers, with follow-up for up to 12 months. Ribavirin was prescribed at the treating physician’s discretion. Multivariable analysis assessed the association between ribavirin and percentage change in forced expiratory volume in the first second (FEV1) at 90 days, using FEV1 three months before infection as baseline and adjusting for baseline FEV1, pre-existing chronic lung allograft dysfunction, and time since transplantation. Seventy-six patients were included; 60 (78.9%) had RSV and 16 (21.1%) hMPV. Lower respiratory tract infection occurred in 48.7%, and an acute ≥10% FEV1 decline at 14 days was observed in 29.3%. Among patients with lower respiratory tract infection, 45.9% received corticosteroids alone and 37.8% corticosteroids plus ribavirin. No statistically significant between-group differences in allograft dysfunction or mortality were observed. RSV and hMPV infections after LT were frequently associated with lower respiratory involvement and lung function decline. In this observational cohort, ribavirin use was not independently associated with 90-day FEV1 change; however, residual confounding and limited statistical power preclude conclusions regarding treatment efficacy.
Keywords:
ribavirin
respiratory viral infection
lung allograft dysfunction
respiratory syncytial virus
human metapneumovirus
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154
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