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Am J Respir Crit Care Med ; 210(1): 108-118, 2024 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-38668710

RESUMEN

Rationale: Nontuberculous mycobacteria (NTM) are prevalent among patients with bronchiectasis. However, the long-term natural history of patients with NTM and bronchiectasis is not well described. Objectives: To assess the impact of NTM on 5-year clinical outcomes and mortality in patients with bronchiectasis. Methods: Patients in the Bronchiectasis and NTM Research Registry with ⩾5 years of follow-up were eligible. Data were collected for all-cause mortality, lung function, exacerbations, hospitalizations, and disease severity. Outcomes were compared between patients with and without NTM at baseline. Mortality was assessed using Cox proportional hazards models and the log-rank test. Measurements and Main Results: In total, 2,634 patients were included: 1,549 (58.8%) with and 1,085 (41.2%) without NTM at baseline. All-cause mortality (95% confidence interval) at Year 5 was 12.1% (10.5%, 13.7%) overall, 12.6% (10.5%, 14.8%) in patients with NTM, and 11.5% (9.0%, 13.9%) in patients without NTM. Independent predictors of 5-year mortality were baseline FEV1 percent predicted, age, hospitalization within 2 years before baseline, body mass index, and sex (all P < 0.01). The probabilities of acquiring NTM or Pseudomonas aeruginosa were approximately 4% and 3% per year, respectively. Spirometry, exacerbations, and hospitalizations were similar, regardless of NTM status, except that annual exacerbations were lower in patients with NTM (P < 0.05). Conclusions: Outcomes, including exacerbations, hospitalizations, rate of loss of lung function, and mortality rate, were similar across 5 years in patients with bronchiectasis with or without NTM.


Asunto(s)
Bronquiectasia , Infecciones por Mycobacterium no Tuberculosas , Sistema de Registros , Humanos , Bronquiectasia/mortalidad , Bronquiectasia/fisiopatología , Bronquiectasia/epidemiología , Masculino , Femenino , Persona de Mediana Edad , Anciano , Infecciones por Mycobacterium no Tuberculosas/mortalidad , Infecciones por Mycobacterium no Tuberculosas/epidemiología , Estados Unidos/epidemiología , Hospitalización/estadística & datos numéricos , Modelos de Riesgos Proporcionales , Micobacterias no Tuberculosas , Progresión de la Enfermedad
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