The impact of changing the diagnostic algorithm for TB in Manicaland, Zimbabwe.

Xpert MTB/Rif Zimbabwe diagnostics tuberculosis

Journal

Public health action
ISSN: 2220-8372
Titre abrégé: Public Health Action
Pays: France
ID NLM: 101624961

Informations de publication

Date de publication:
21 Dec 2021
Historique:
received: 22 04 2021
accepted: 29 08 2021
entrez: 27 12 2021
pubmed: 28 12 2021
medline: 28 12 2021
Statut: ppublish

Résumé

Governmental health facilities performing TB diagnostics in Manicaland, Zimbabwe. To investigate the effect of making Xpert® MTB/RIF the primary TB diagnostic for all patients presenting with presumptive TB on 1) the number of samples investigated for TB, 2) the proportion testing TB-positive, and 3) the proportion of unsuccessful results over time. This retrospective study used data from GeneX-pert downloads, laboratory registers and quality assurance reports between 1 January 2017 and 31 December 2018. The total number of Xpert tests performed in Manicaland increased from 3,967 in the first quarter of 2017 to 7,011 in the last quarter of 2018. Roll out of more sensitive TB diagnostics does not necessarily result in an increase of microbiologically confirmed TB diagnosis. While the number of samples tested using Xpert increased, the proportion of TB-positive tests decreased. GeneXpert soft- and hardware infrastructure needs to be strengthened to reduce the rate of unsuccessful assays and therefore, costs and staff time. Centres de soins gouvernementaux réalisant des tests diagnostiques de la TB au Manicaland, Zimbabwe. Analyser l’effet de l’utilisation du test Xpert® MTB/RIF en tant que test diagnostique principal de la TB chez tous les patients suspects de TB sur 1) le nombre d’échantillons analysés pour TB, 2) la proportion d’échantillons testés positifs à la TB et 3) la proportion de résultats infructueux au fil du temps. Cette étude rétrospective a utilisé les données extraites du système GeneXpert, des registres de laboratoire et des rapports d’assurance qualité entre le 1 Le nombre total de tests Xpert réalisés au Manicaland a augmenté, de 3 967 au premier trimestre 2017 à 7 011 au dernier trimestre 2018. L’ADN de Le déploiement de tests diagnostiques de la TB plus sensibles n’entraîne pas nécessairement une hausse des diagnostics de TB confirmés microbiologiquement. Alors que le nombre d’échantillons testés par test Xpert a augmenté, la proportion de tests positifs pour la TB a diminué. L’infrastructure du matériel et du logiciel GeneXpert doit être renforcée pour réduire le taux de tests infructueux, et donc les coûts et le temps consacré par le personnel à la réalisation de ces tests.

Autres résumés

Type: Publisher (fre)
Centres de soins gouvernementaux réalisant des tests diagnostiques de la TB au Manicaland, Zimbabwe.

Identifiants

pubmed: 34956848
doi: 10.5588/pha.21.0040
pmc: PMC8680185
doi:

Types de publication

Journal Article

Langues

eng

Pagination

196-201

Informations de copyright

© 2021 The Union.

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Auteurs

K Zvinoera (K)

Ministry of Health and Child Care, Mutare Provincial Hospital, Mutare, Zimbabwe.

I D Olaru (ID)

Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK.
Biomedical Research and Training Institute, Harare, Zimbabwe.

P Khan (P)

Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK.

J Mutsvangwa (J)

Biomedical Research and Training Institute, Harare, Zimbabwe.

C M Denkinger (CM)

Division of Tropical Medicine, Centre for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany.
German Centre for Infection Research (DZIF), partner site Heidelberg University Hospital, Heidelberg, Germany.

V Kampira (V)

Ministry of Health and Child Care, Mutare Provincial Hospital, Mutare, Zimbabwe.

D Coutinho (D)

Ministry of Health and Child Care, Mutare Provincial Hospital, Mutare, Zimbabwe.

H Mutunzi (H)

AIDS and TB Department, Ministry of Health and Child Care, Harare, Zimbabwe.

M Pepukai (M)

Biomedical Research and Training Institute, Harare, Zimbabwe.

E Chikaka (E)

Department of Health Sciences, College of Health and Natural Sciences, Africa University, Old Mutare, Zimbabwe.

S Zinyowera (S)

National Microbiology Reference Laboratory, Ministry of Health and Child Care, Harare, Zimbabwe.

S Mharakurwa (S)

Department of Health Sciences, College of Health and Natural Sciences, Africa University, Old Mutare, Zimbabwe.

K Kranzer (K)

Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK.
Biomedical Research and Training Institute, Harare, Zimbabwe.
Division of Infectious Diseases and Tropical Medicine, Medical Center of the University of Munich, Munich, Germany.

Classifications MeSH