Sputum smear microscopy in DOTS: Are three samples necessary? An analysis and its implications in tuberculosis control

OBJECTIVES: To assess relevance of spot morning spot (SMS) method of smear microscopy in tuberculosis control by directly observed treatment short course (DOTS). MATERIALS AND METHODS: Screening of smear microscopy results of 546 cases of pulmonary tuberculosis at our DOTS centre. RESULTS: Among 546...

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Detalles Bibliográficos
Autor principal: Rao, Sukhesh
Formato: Texto
Lenguaje:English
Publicado: Medknow Publications 2009
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2813116/
https://www.ncbi.nlm.nih.gov/pubmed/20165586
http://dx.doi.org/10.4103/0970-2113.45196
Descripción
Sumario:OBJECTIVES: To assess relevance of spot morning spot (SMS) method of smear microscopy in tuberculosis control by directly observed treatment short course (DOTS). MATERIALS AND METHODS: Screening of smear microscopy results of 546 cases of pulmonary tuberculosis at our DOTS centre. RESULTS: Among 546 cases, 82% had all three samples positive for AFB, 98% had either morning sample or spot and morning sample positive. 2% had second spot sample positive. CONCLUSION: Examination of third sample, especially second spot sample, does not add significantly to the diagnostic yield. Examination of one spot and early morning samples were able to correctly diagnose 98% cases. This has strong implications in DOTS strategies.

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