Publications by authors named "Niyongabo T"

Introduction: The COVID-19 pandemic has impacted population health around the globe, directly and indirectly. The objective of this study was to document changes in HIV care associated with the COVID-19 pandemic at selected clinics in Central Africa, along with clinic-level strategies for minimizing disruptions in HIV care and treatment for people with HIV (PWH).

Methods: A 51-item questionnaire on COVID-19 pandemic-associated changes in HIV service delivery was completed by clinicians involved in HIV care at 21 clinics in five countries participating in Central Africa International epidemiology Databases to Evaluate AIDS (CA-IeDEA).

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Currently, the life expectancy of people living with the human immunodeficiency virus (HIV) and the general population are similar. Hypertension is a major public health issue in Africa and is largely underdiagnosed. Most HIV-infected individuals, especially those on Anti-Retroviral Therapy (ART) have hypertension.

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Chronic disease of people living with human immunodeficiency virus (HIV) infection are now approaching those of the general population. Previous, in vitro studies shown that HIV causes arterial injuries resulting in inflammation and atherosclerosis but direct relationship between HIV infection clinical stages and lower extremity arterial disease (LEAD) remain controversial. No study assessed, with an accurate method, both the prevalence of LEAD and the influence of HIV severity on LEAD in HIV outpatients in Central Africa.

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Background: The World Health Organization's Treat-All guidance recommends CD4 testing before initiating antiretroviral therapy (ART), and routine viral load (VL) monitoring (over CD4 monitoring) for patients on ART.

Methods: We used regression discontinuity analyses to estimate changes in CD4 testing and VL monitoring among 547 837 ART-naive patients enrolling in human immunodeficiency virus (HIV) care during 2006-2018 at 225 clinics in 26 countries where Treat-All policies were adopted. We examined CD4 testing within 12 months before and VL monitoring 6 months after ART initiation among adults (≥20 years), adolescents (10-19 years), and children (0-9 years) in low/lower-middle-income countries (L/LMICs) and high/upper-middle-income countries (H/UMICs).

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Clinical health record data are used for HIV surveillance, but the extent to which these data are population representative is not clear. We compared age, marital status, body mass index, and pregnancy distributions in the Central Africa International Databases to Evaluate AIDS (CA-IeDEA) cohorts in Burundi and Rwanda to all people living with HIV and the subpopulation reporting receiving a previous HIV test result in the Demographic and Health Survey (DHS) data, restricted to urban areas, where CA-IeDEA sites are located. DHS uses a probabilistic sample for population-level HIV prevalence estimates.

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Introduction: By 2020, 90% of all people diagnosed with HIV should receive long-term combination antiretroviral therapy (ART). In sub-Saharan Africa, this target is threatened by loss to follow-up in ART programmes. The proportion of people retained on ART long-term cannot be easily determined, because individuals classified as lost to follow-up, may have self-transferred to another HIV treatment programme, or may have died.

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Evidence demonstrates a substantial HIV epidemic among children and adolescents in countries with long-standing generalized HIV epidemics, where availability of prevention of mother-to-child transmission services has historically been limited. The objective of this research was to explore factors associated with antiretroviral therapy (ART) initiation and morbidity among HIV-infected surviving children 2-17 years of age attending HIV programs in Central Africa. Programmatic data from 404 children attending HIV programs in Burundi, Cameroon, and the Democratic Republic of Congo (DRC) were included in our evaluation.

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Antiretroviral therapy (ART)-naïve patients are vulnerable to becoming lost-to-care (LTC) because they are not monitored as often as patients on treatment. We examined data from 19,461 HIV positive adults at 10 HIV clinics in Democratic Republic of Congo (DRC), Cameroon, and Burundi participating in the Phase 1 International epidemiologic Databases to Evaluate AIDS Central Africa (IeDEA-CA) study. Patients were LTC if they were ART-naïve and did not return within 7 months of the end of data collection.

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Background: Adequate resource allocation is critical in the battle against HIV/AIDS, especially in Africa. The determination of the location and nature of HIV services to implement must comply with the geographic, social and behavioral characteristics of patients. We therefore investigated the spatial heterogeneity of HIV prevalence in Burundi and then assessed the association of social and behavioral characteristics with HIV infection accounting for the spatial heterogeneity.

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Introduction: Despite recent advances in the management of HIV infection and increased access to treatment, prevention, care and support, the HIV/AIDS epidemic continues to be a major global health problem, with sub-Saharan Africa suffering by far the greatest humanitarian, demographic and socio-economic burden of the epidemic. Information on HIV/AIDS clinical care and established cohorts' characteristics in the Central Africa region are sparse.

Methods: A survey of clinical care resources, management practices and patient characteristics was undertaken among 12 adult HIV care sites in four countries of the International Epidemiologic Databases to Evaluate AIDS Central Africa (IeDEA-CA) Phase 1 regional network in October 2009.

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Background. Very little is known about older adults accessing HIV care in sub-Saharan Africa. Materials and Methods.

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Globally, women comprise half of all people living with HIV, but in sub-Saharan Africa, women are disproportionately affected. Data were obtained from 8419 HIV-infected women at enrollment into 10 HIV treatment programs in Cameroon, Burundi, and the Democratic Republic of the Congo as part of the Central Africa region of the International Epidemiological Database to Evaluate AIDS. We used chi-squared tests to determine if distributions between women with children differed from those without children, in regards to socio-demographic, behavioral and clinical characteristics.

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Background: Since little is known about chronic kidney disease (CKD) among people living with HIV/AIDS (PLWHA) in Sub-Saharan Africa, the prevalence and nature of CKD were assessed in Burundi through a multicenter cross-sectional study.

Methods: Patients underwent assessments at baseline and 3 months later. Glomerular Filtration Rate (GFR) was estimated using abbreviated 4-variable Modification of Diet in Renal Diseases (MDRD) and Cockroft-Gault estimation methods.

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In Burundi, like in many other resource-limited settings, HIV sector is mainly financed by international funding (IF). Through this way, HIV-infected people may have access to care, antiretroviral therapy and opportunistic infections medications free of charge. In addition, IF can also contribute to major the HIV-health care professionals (HCP) salary.

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In 2002, an HIV surveillance study was performed among more than 5500 individuals representing the general population of urban and rural districts in Burundi. In this report, we genetically characterized a subset of the HIV-1-positive samples identified during this survey, including all the HIV-positive samples from Bujumbura, the capital city, and samples from one semiurban and one rural district. One hundred and nineteen samples were genetically characterized in the V3-V5 region of the env gene and/or in the protease and reverse transcriptase region of the pol gene.

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To analyze the long-term survival factors associated with HIV infection, a prospective follow-up study of 165 HIV-infected patients was performed after a clinical, nutritional, and biological evaluation. Survival rate could be determined in 129 patients after a follow-up of 42 mo before the use of protease inhibitors. After univariate analysis, multivariate analysis was performed with the Cox regression proportional-hazard model.

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Malnutrition is a frequent complication of human immunodeficiency virus (HIV) infection and is associated with a poor prognosis. To compare different measures of nutritional status in HIV-infected patients, we prospectively studied 88 outpatients seen at a Paris AIDS outpatient clinic for routine follow-up examinations. Nutritional status was assessed according to body weight loss (BWL, 4 classes), anthropometry, bioelectric impedance analysis (BIA), and subjective global assessment of nutritional status (SGA).

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Objective: To determine the prevalence and analyse the characteristics and causes of malnutrition among inpatients in an HIV highly endemic area.

Design: Prospective cross-sectional study.

Setting: Department of Internal Medicine, University Hospital, Bujumbura, Burundi.

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Aims: To determine the prevalence of ocular manifestations in AIDS patients hospitalised in Bujumbura, Burundi, according to their CD4+ lymphocyte count, serological status for CMV and VZV, and general health status.

Methods: Prospective study of 154 consecutive patients who underwent general and ophthalmological examinations, including dilated fundus examination. AIDS was diagnosed on the basis of Bangui criteria and HIV-1 seropositivity.

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In order to compare the nutritional status of tuberculosis (TB) patients who were human immunodeficiency virus (HIV)-seropositive with those who were seronegative, we carried out a cross-sectional anthropometric and biochemical assessment, together with bioelectrical impedance analysis (BIA) of the nutritional status of TB patients hospitalized in the Department of Internal Medicine, Bujumbura University Hospital, Burundi, East Africa. Of the 65 TB patients (33 pulmonary, 6 extrapulmonary, and 26 disseminated TB), 50 (76.9%) were HIV-seropositive (HIV+).

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Objective: To measure the prevalence and analyse the characteristics of malnutrition among subjects attending an AIDS outpatient clinic and a day care center, to improve the nutritional management of HIV-infected subjects.

Design: Prospective cross-sectional study.

Setting: AIDS clinic in a University Hospital in Paris.

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The prevalence of antibodies to the hepatitis E virus (HEV) was measured in a group of 129 adults from Bujumbura, Burundi, using an ELISA. The prevalence of anti-HEV IgG was 14%, much lower than that of hepatitis A virus (HAV) (97.7%).

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Setting: Two University hospitals in Eastern African capital cities where large prospective studies had been carried out on hospitalized patients to determine the cause of their respiratory diseases.

Objective: To identify features that differentiated between tuberculosis (TB) and non-tuberculous respiratory disease (non-TB) in hospitalized patients from Bujumbura, Burundi (n = 111) and Dar es Salaam, Tanzania (n = 71) whose sputum smears were negative on microscopic examination for acid-fast bacilli (AFB).

Design: Review of clinical findings, radiologic abnormalities, and laboratory test results from 182 patients, first by univariate and then by multivariate (stepwise logistic regression) analysis to assess the contribution of each factor to the final diagnosis.

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