19 research outputs found

    Utilisation du test GeneXpert pour le diagnostic de la tuberculose au service des maladies infectieuses du CHNU de Fann

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    Introduction: Nous avons réalisé ce travail pour montrer notre expérience d’utilisation du GeneXpert et évaluer son apport dans la confirmation du diagnostic de la tuberculose. Méthodes: Etude prospective descriptive et analytique de janvier à Décembre 2013. Résultats: Quatre vingt quatorze patients ont bénéficié du geneXpert pour le dépistage de la tuberculose toute localisation confondue. Le geneXpert avait été positif dans 62% des cas. Les images radiologiques fortement évocatrices de tuberculose était associées à un geneXpert positif dans 25% des cas. La recherche de BAAR réalisée chez 55 patients était positive dans 9 cas (16%). Le geneXpert était positif sur 46 frottis négatif (54%)et dans 89% sur les frottis positifs. La prévalence de la tuberculose extrapulmonaire était de 34%. Le taux de positivité était variable en fonction du type de prélèvement. Deux cas de résistance à la rifampicine ont été détectées. Conclusion: Le geneXpert a été d’un grand apport pour le diagnostic de la tuberculose pulmonaire et extrapulmonaire mais la bacilloscopie reste incontournable.Pan African Medical Journal 2016; 2

    Hepatitis B screening practices and viral control among persons living with HIV in urban Senegal.

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    Chronic hepatitis B virus (HBV) infection affects >10% of the general population and is the leading cause of liver cirrhosis and cancer in West Africa. Despite current recommendations, HBV is often not tested for in clinical routine in the region. We included all people living with HIV (PLWH) in care between March and July 2019 at Fann University Hospital in Dakar (Senegal) and proposed hepatitis B surface antigen (HBsAg) test to those never tested. All HBsAg-positive underwent HIV and HBV viral load (VL) and liver stiffness measurement. We evaluated, using logistic regression, potential associations between patient characteristics and (a) HBV testing uptake; (b) HIV/HBV co-infection among individual HBsAg tested. We determined the proportion of co-infected who had HBV DNA >20 IU/ml on ART and sequenced HBV polymerase in those with HBV replication.of 1076 PLWH in care, 689 (64.0%) had never had an HBsAg test prior to our HBV testing intervention. Women and individuals >40 years old were less likely to have been previously tested. After HBV testing intervention,107/884 (12.1%) PLWH were HBsAg-positive. Seven of 58 (12.1%) individuals newly diagnosed with HIV/HBV co-infection had a detectable HBV VL, of whom five were HIV-suppressed. Two patients on ART including 3TC and AZT as backbone showed the presence of the triple resistance mutation 180M/204I/80V. In this Senegalese urban HIV clinic, the majority of patients on ART had never been tested for HBV infection. One in ten co-infected individuals had a detectable HBV VL despite HIV suppression, and 8% were not receiving a TDF-containing regimen

    Prevalence and Predictors of Liver Fibrosis in People Living with Hepatitis B in Senegal.

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    Hepatitis B virus (HBV) infection is the first cause of liver cirrhosis and cancer in West Africa. Although the exposure to additional environmental and infectious risk factors may lead to the faster progression of liver disease, few large-scale studies have evaluated the determinants of HBV-related liver fibrosis in the region. We used transient elastography to evaluate the prevalence of liver fibrosis and assessed the association between HBV markers and significant liver fibrosis in a cohort of people living with HBV in Dakar, Senegal. The prevalence of significant liver fibrosis was 12.5% (95% confidence interval [CI] 9.6%-15.9%) among 471 people with HBV mono-infection (pwHBV) and 6.4% (95% CI 2.6%-12.7%) in 110 people with HIV/HBV co-infection (pwHIV/HBV) on tenofovir-containing antiretroviral therapy (p = 0.07). An HBV viral load > 2000 IU/mL was found in 133 (28.3%) pwHBV and 5 (4.7%) pwHIV/HBV, and was associated with significant liver fibrosis (adjusted odds ratio (aOR) 1.95, 95% CI 1.04-3.66). Male participants (aOR 4.32, 95% CI 2.01-8.96) and those with elevated ALT (aOR 4.32, 95% CI 2.01-8.96) were especially at risk of having significant liver fibrosis. Our study shows that people with an HBV viral load above 2000 IU/mL have a two-fold increase in the risk of liver fibrosis and may have to be considered for antiviral therapy, independent of other disease parameters

    Tuberculose intestinale révélée par une occlusion intestinale aigüe au cours d’une réaction paradoxale au traitement anti-tuberculeux chez un patient immunocompétent: à propos d’un cas et revue de la littérature

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    La tuberculose intestinale représente 3 à 5% de toutes les localisations viscérales. Malgré l'efficacité démontrée des anti-tuberculeux, des cas d'exacerbation du tableau clinique initial ont été décrits à l'initiation du traitement. Ces réactions dites «paradoxales» sont cependant rarement rapportées chez les immunocompétents et beaucoup moins sous forme d'occlusion intestinale. Nous rapportons un cas de tuberculose intestinale révélée par une occlusion intestinale aigüe au cours d'une réaction paradoxale aux anti-tuberculeux. Il s'agit d'un patient de 26 ans, immunocompétent qui a présenté un syndrome occlusif à un mois de traitement d'une tuberculose pleuro-pulmonaire. La tomodensitométrie (TDM) abdominale était en faveur d'une occlusion intestinale grêlique. La laparotomie objectivait une masse intra-péritonéale avec de multiples adhérences. L'examen anatomopathologique de la pièce opératoire était en faveur d'une tuberculose intestinale. L'évolution était favorable après la poursuite du traitement anti-tuberculeux initial

    A closer look at the spectrum of drug-induced liver injury in sub-Saharan Africa.

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    Drug-induced liver injury (DILI) has become the most frequent cause of acute liver failure in high-income countries. However, little is known about the determinants of DILI in sub-Saharan Africa (SSA), where the prescription of antimicrobials as well as the use of potentially hepatotoxic traditional medicine are common. : Based on an extensive literature search, we summarize current data available on the epidemiology and risk factors of DILI in SSA. We discuss the most likely causes of DILI in the region, including antimicrobial therapies and traditional medicine. We also highlight research gaps as well as barriers to diagnosis and management of the condition, and explore ways to address these important challenges. : DILI is underestimated in SSA and several factors challenge its early diagnosis, including lack of information on the causes of DILI in the region, sub-optimal knowledge about the condition among clinicians, and structural difficulties faced by health care systems. In order to better prevent the occurrence of DILI and its complications, it is crucial to enhance awareness among health care providers and patients, adapt drug prescription habits and regulations, and improve current knowledge on the main risk factors for DILI, including host genetic and environmental determinants

    Ebola Virus Imported from Guinea to Senegal, 2014

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    In March 2014, the World Health Organization declared an outbreak of Ebola virus disease in Guinea. In August 2014, a case caused by virus imported from Guinea occurred in Senegal, most likely resulting from nonsecure funerals and travel. Preparedness and surveillance in Senegal probably prevented secondary cases

    Réactivation d’une hépatite B occulte chez un patient drépanocytaire homozygote: cas clinique et revue de la littérature

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    L'hépatite B occulte correspond à la présence de l'ADN du virus de l'hépatite B dans le sérum et/ou dans le foie d'un patient malgré la négativité de l'AgHBs. C'est une forme clinique habituellement asymptomatique. Sa réactivation est rare et survient en général chez le sujet immunodéprimé. Nous rapportons un cas d'un patient sénégalais de 21 ans, drépanocytaire homozygote, qui présentait un ictère de type cholestatique chez qui l'exploration biologique concluait a une réactivation d'une hépatite B occulte. Cette observation souligne la nécessité de rechercher systématiquement une réactivation d'une hépatite B occulte devant toute hépatopathie aigue chez le drépanocytaire
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