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    Etude de la reĢsistance aux antibiotiques des souches cliniques de Pseudomonas aeruginosa, isoleĢes au laboratoire national de santeĢ publique de Ouagadougou

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    Introduction: lā€™utilisation massive et reĢpeĢteĢe des antibiotiques en santeĢ humaine, animale et dans lā€™environnement a geĢneĢreĢ au fil du temps une augmentation des reĢsistances bacteĢriennes. Ainsi, la prise dā€™antibiotique, reĢpeĢteĢe ou ponctuelle, peut conduire aĢ€ lā€™eĢmergence de bacteĢries reĢsistantes comme Pseudomonas aeruginosa rendant les traitements antibiotiques ulteĢrieurs moins efficaces. Objectif: eĢtudier le profil de reĢsistance des souches de P. aeruginosa aux antibiotiques, isoleĢes au Laboratoire National de SanteĢ Publique (LNSP) de Ouagadougou. MeĢthodologie: il sā€™agissait dā€™une eĢtude reĢtrospective et prospective allant du 1er juin 2017 au 31 deĢcembre 2018 au sein du LNSP. Au cours de notre eĢtude, des souches de P. aeruginosa ont eĢteĢ isoleĢes des pus et des urines en utilisant les techniques conventionnelles de bacteĢriologie. Pour lā€™eĢtude de la reĢsistance, 15 antibiotiques ont eĢteĢ testeĢs en utilisant les criteĢ€res du ComiteĢ dā€™Antibiogramme de la SocieĢteĢ FrancĢ§aise de Microbiologie version 2015. ReĢsultats: au total, 17 souches de P. aeruginosa ont eĢteĢ isoleĢes entre juin 2017 et deĢcembre 2018. Ces souches ont montreĢ des taux de reĢsistance variable aux beĢ‚ta-lactamines : Ticarcilline (76,5%), ceftriaxone (58,8%), ceftazidime (23,5%). Les aminosides et la colistine ont eĢteĢ les antibiotiques les plus actifs sur lā€™ensemble des 17 souches eĢtudieĢes. Conclusion: au cours de notre travail, les souches de P. aeruginosa eĢtaient principalement reĢsistantes aux carboxypenicillines, aĢ€ la fosfomycine, au cotrimoxazole et aĢ€ la rifampicine. Ces reĢsistances pourraient eĢ‚tre dues aĢ€ lā€™utilisation abusive des antibiotiques ou aĢ€ certains facteurs de risques dā€™acquisition des reĢsistances. Mots-cleĢs: Pseudomonas aeruginosa, reĢsistance aux antibiotiques, Burkina Faso English Title: Antibiotic resistance study of clinical strains of Pseudomonas aeruginosa, isolated at ā€œLaboratoire National de SanteĢ Publiqueā€ of Ouagadougou English Abstract Introduction: The massive and repeated use of antibiotics in human, animal and environmental health facilities has generated over time an increase in bacterial resistance. Thus, the repeated or punctual antibiotic use can lead to the emergence of resistant bacteria like Pseudomonas aeruginosa making subsequent antibiotic treatments less effective. Objective: To study the resistance profile of P. aeruginosa strains to antibiotics, isolated at Laboratoire National de SanteĢ Publique Methodology: This was a retrospective and prospective study from June 1, 2017 to December 31, 2018. During our study, P. aeruginosa strains were isolated from pus and urine using conventional bacteriological techniques. For the antibioticā€™s resistance study, 15 antibiotics were tested using the criteria of the Antibiogram Committee of the French Society of Microbiology version 2015. Results: A total of 17 P. aeruginosa strains were isolated between June 2017 and December 2018 have been tested.  These strains showed variable resistance rates to beta-lactams: Ticarcillin (76.5%), ceftriaxone (58.8%), ceftazidime (23.5%). Aminoglycosides and colistin were the most active antibiotics among all 17 strains studied. Conclusion: During our work, P. aeruginosa strains were mainly resistant to carboxypenicillins, fosfomycin, cotrimoxazole and rifampicin. This resistance could be due to the overuse of antibiotics or to certain risk factors for acquiring resistance. Keyswords: Pseudomonas earuginosa, antibiotics resistance, Burkina Fas
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