'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma

Failure of tuberculosis patients to respond to treatment is usually explained by one or more of five mechanisms: improper drug prescription; patient nonadherence to prescribed therapy; primary or acquired drug resistance; drug malabsorption; and rarely, exogenous reinfection with a drug-resistant is...

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Main Authors: Richard Long, Sylvia Chomyc, Evelina Der, Daniel S Sitar
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:Canadian Respiratory Journal
Online Access:http://dx.doi.org/10.1155/2000/156183
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author Richard Long
Sylvia Chomyc
Evelina Der
Daniel S Sitar
author_facet Richard Long
Sylvia Chomyc
Evelina Der
Daniel S Sitar
author_sort Richard Long
collection DOAJ
description Failure of tuberculosis patients to respond to treatment is usually explained by one or more of five mechanisms: improper drug prescription; patient nonadherence to prescribed therapy; primary or acquired drug resistance; drug malabsorption; and rarely, exogenous reinfection with a drug-resistant isolate. Response to treatment is best measured bacteriologically; two different smear and one culture criteria for failure are widely used. Patients meeting either smear, but not culture, criteria for treatment failure may be said to have 'pseudo' treatment failure. Whether a patient can meet both smear criteria for failure, and not have a mechanism for treatment failure nor meet culture criteria, is unknown. A case of 'pseudo' treatment failure is reported in which both smear criteria for failure were met, but no mechanism for failure was proven to be operative.
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series Canadian Respiratory Journal
spelling doaj-art-adc12d0f93394766aa519808970dd6602025-02-03T01:04:03ZengWileyCanadian Respiratory Journal1198-22412000-01-0171798310.1155/2000/156183'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a TuberculomaRichard Long0Sylvia Chomyc1Evelina Der2Daniel S Sitar3Department of Medicine and Medical Microbiology, University of Alberta, Edmonton, Alberta, CanadaDepartment of Medicine and Medical Microbiology, University of Alberta, Edmonton, Alberta, CanadaCapital HealthTuberculosis Clinic, Edmonton, Alberta, CanadaClinical Pharmacology Section, University of Manitoba, Winnipeg, Manitoba, CanadaFailure of tuberculosis patients to respond to treatment is usually explained by one or more of five mechanisms: improper drug prescription; patient nonadherence to prescribed therapy; primary or acquired drug resistance; drug malabsorption; and rarely, exogenous reinfection with a drug-resistant isolate. Response to treatment is best measured bacteriologically; two different smear and one culture criteria for failure are widely used. Patients meeting either smear, but not culture, criteria for treatment failure may be said to have 'pseudo' treatment failure. Whether a patient can meet both smear criteria for failure, and not have a mechanism for treatment failure nor meet culture criteria, is unknown. A case of 'pseudo' treatment failure is reported in which both smear criteria for failure were met, but no mechanism for failure was proven to be operative.http://dx.doi.org/10.1155/2000/156183
spellingShingle Richard Long
Sylvia Chomyc
Evelina Der
Daniel S Sitar
'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma
Canadian Respiratory Journal
title 'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma
title_full 'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma
title_fullStr 'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma
title_full_unstemmed 'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma
title_short 'Pseudo' Treatment Failure of Pulmonary Tuberculosis in Association with a Tuberculoma
title_sort pseudo treatment failure of pulmonary tuberculosis in association with a tuberculoma
url http://dx.doi.org/10.1155/2000/156183
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AT sylviachomyc pseudotreatmentfailureofpulmonarytuberculosisinassociationwithatuberculoma
AT evelinader pseudotreatmentfailureofpulmonarytuberculosisinassociationwithatuberculoma
AT danielssitar pseudotreatmentfailureofpulmonarytuberculosisinassociationwithatuberculoma