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Título:
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Dynamics of Cough Frequency in Adults Undergoing Treatment for Pulmonary Tuberculosis
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Autores:
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Proaño, Alvaro ;
Bravard, Marjory A. ;
López, José W. ;
Lee, Gwenyth O. ;
Bui, David ;
Datta, Sumona ;
Comina, Germán ;
Zimic, Mirko ;
Coronel, Jorge ;
Caviedes, Luz ;
Cabrera, Jose L. ;
Salas, Antonio ;
Ticona, Eduardo ;
Vu, Nancy M. ;
Kirwan, Daniela E. ;
Loader, Maria-Cristina I. ;
Friedland, Jon S. ;
Moore, David A. J. ;
Evans, Carlton A. ;
Tracey, Brian H. ;
Gilman, Robert H.
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Tipo de documento:
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texto impreso
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Editorial:
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Oxford University Press, 2019-01-25T16:59:37Z
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Nota general:
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info:eu-repo/semantics/restrictedAccess
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
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Idiomas:
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Inglés
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Palabras clave:
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Editados por otras instituciones
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Artículos
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Artículos en revistas indizadas
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Resumen:
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Background: Cough is the major determinant of tuberculosis transmission. Despite this, there is a paucity of information regarding characteristics of cough frequency throughout the day and in response to tuberculosis therapy. Here we evaluate the circadian cycle of cough, cough frequency risk factors, and the impact of appropriate treatment on cough and bacillary load. Methods: We prospectively evaluated human immunodeficiency virus-negative adults (n = 64) with a new diagnosis of culture-proven, drug-susceptible pulmonary tuberculosis immediately prior to treatment and repeatedly until treatment day 62. At each time point, participant cough was recorded (n = 670) and analyzed using the Cayetano Cough Monitor. Consecutive coughs at least 2 seconds apart were counted as separate cough episodes. Sputum samples (n = 426) were tested with microscopic-observation drug susceptibility broth culture, and in culture-positive samples (n = 252), the time to culture positivity was used to estimate bacillary load. Results: The highest cough frequency occurred from 1 pm to 2 pm, and the lowest from 1 am to 2 am (2.4 vs 1.1 cough episodes/hour, respectively). Cough frequency was higher among participants who had higher sputum bacillary load (P
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En línea:
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http://doi.org/10.1093/cid/cix039
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