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1.
BMC Public Health ; 18(1): 1248, 2018 Nov 12.
Artigo em Inglês | MEDLINE | ID: mdl-30419870

RESUMO

BACKGROUND: In 2010, Rwanda adopted ART for prevention of mother to child transmission of HIV from pregnant women living with HIV during pregnancy and breasfeeding period. This study examines rates of mother-to-child-transmission of HIV at 6-10 weeks postpartum and risk factors for mother-to-child transmission of HIV (MTCT) among HIV infected women on ART during pregnancy and breastfeeding. METHODS: A cross-sectional survey study was conducted between July 2011-June 2012 among HIV-exposed infants aged 6-10 weeks and their mothers/caregivers. Stratified multi-stage, probability proportional to size and systematic sampling to select a national representative sample of clients. Consenting mothers/caregivers were interviewed on demographic and program interventions. Dry blood spots from HIV-exposed infants were collected for HIV testing using DNA PCR technique. Results are weighted for sample realization. Univariable analysis of socio-demographic and programmatic determinants of early mother-to-child transmission of HIV was conducted. Variables were retained for final multivariable models if they were either at least of marginal significance (p-value < 0.10) or played a confounding role (the variable had a noticeable impact > 10% change on the effect estimate). RESULTS: The study sample was 1639 infants with HIV test results. Twenty-six infants were diagnosed HIV-positive translating to a weighted MTCT estimate of 1.58% (95% CI 1.05-2.37%). Coverage of most elimination of MTCT (EMTCT) program interventions, was above 80, and 90.4% of mother-infant pairs received antiretroviral treatment or prophylaxis. Maternal ART and infant antiretroviral prophylaxis (OR 0.01; 95%CI 0.001-0.17) and maternal age older than 25 years were significantly protective (OR 0.33; 95%CI 0.14-0.78). No disclosure of HIV status, not testing for syphilis during pregnancy and preterm birth were significant risk factors for MTCT. Factors suggesting higher socio-demographic status (flush toilet, mother self-employed) were borderline risk factors for MTCT. CONCLUSION: ART for all women during pregnancy and breastfeeding was associated with the estimated low MTCT rate of 1.58%. Mothers who did not receive a full package of anti-retroviral therapy according to the Rwanda EMTCT protocol, and young and single mothers were at higher risk of MTCT and should be targeted for support in preventing HIV infection.


Assuntos
Antirretrovirais/uso terapêutico , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Complicações Infecciosas na Gravidez/tratamento farmacológico , Adolescente , Adulto , Aleitamento Materno/efeitos adversos , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Humanos , Lactente , Masculino , Período Pós-Parto , Gravidez , Fatores de Risco , Ruanda/epidemiologia , Resultado do Tratamento , Adulto Jovem
2.
Bull World Health Organ ; 91(6): 407-15, 2013 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-24052677

RESUMO

OBJECTIVE: To assess the costs associated with the provision of services for the prevention of mother-to-child transmission (PMTCT) of human immunodeficiency virus in two African countries. METHODS: In 2009, the costs to health-care providers of providing comprehensive PMTCT services were assessed in 20 public health facilities in Namibia and Rwanda. Information on prices and on the total amount of each service provided was collected at the national level. The costs of maternal testing and counselling, male partner testing, CD4+ T-lymphocyte (CD4+ cell) counts, antiretroviral prophylaxis and treatment, community-based activities, contraception for 2 years postpartum and early infant diagnosis were estimated in United States dollars (US$). FINDINGS: The estimated costs to the providers of PMTCT, for each mother-infant pair, were US$202.75-1029.55 in Namibia and US$94.14-342.35 in Rwanda. These costs varied with the drug regimen employed. At 2009 coverage levels, the maximal estimates of the national costs of PMTCT were US$3.15 million in Namibia and US$7.04 million in Rwanda (or < US$0.75 per capita in both countries). Adult testing and counselling accounted for the highest proportions of the national costs (37% and 74% in Namibia and Rwanda, respectively), followed by management and supervision. Treatment and prophylaxis accounted for less than 20% of the costs of PMTCT in both study countries. CONCLUSION: The costs involved in the PMTCT of HIV varied widely between study countries and in accordance with the protocols used. However, since per-capita costs were relatively low, the scaling up of PMTCT services in Namibia and Rwanda should be possible.


Assuntos
Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Serviços Preventivos de Saúde/economia , Setor Público , Aconselhamento , Feminino , Infecções por HIV/diagnóstico , Humanos , Lactente , Recém-Nascido , Namíbia , Gravidez , Ruanda
3.
Vaccine ; 41(38): 5572-5579, 2023 08 31.
Artigo em Inglês | MEDLINE | ID: mdl-37524630

RESUMO

BACKGROUND: Cameroon has been struggling with low Covid-19 vaccination coverage, with only 4.5 % of the population receiving the primary series as of November 2022. The COVID-19 Vaccine Delivery Partnership (CoVDP) conducted a high-level mission to Cameroon to assess progress and advocate for actions to address bottlenecks. The objective of the mission was to administer at least 3,000,000 doses of vaccines during the 5th Mass vaccination campaign. This study examines the factors contributing to the success of the campaign and uses a geographical and gender lens to assess the results. METHODS: The study is a secondary analysis of data from the DHIS2 collected during the 5th mass vaccination campaign for Covid-19. Descriptive statistics were used to assess coverages per location and gender expressed in OR. sccess factors, and chi-squared tests were used to assess differences in vaccine distribution across regions and by gender. RESULTS: This 5th vaccination campaign benefitted from a strong political commitment facilitated by CoVDP's mission, international support, collaboration, planning, supervision, and demand generation. The campaign recorded 2 019 118 administered vaccine doses, a staggering 46-fold increase in vaccinated individuals relative to the first round, with vaccination coverage reaching 10.1 % of the general population. However, the study reveals regional and gender disparities in vaccination coverage. Men had higher odds of being vaccinated than women in the three Sahel regions. Among individuals with comorbidities, the national coverage rate was only 14 %, and the Far North and East regions exhibited the lowest coverage rates. Janssen was the most used vaccine, and the total AEFI cases reported were 2 per 1000 vaccine doses. CONCLUSION: The 5th COVID-19 vaccination campaign in Cameroon saw a strong political commitment and was the most successful so far. Despite the gains, there was gender disparity in coverage in some regions. It is important to continue the established momentum, ensure equitable access in the Sahel regions, and reach high-priority groups with primary series and booster doses.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Masculino , Humanos , Feminino , Camarões/epidemiologia , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinação , Programas de Imunização
4.
BMC Public Health ; 12: 134, 2012 Feb 18.
Artigo em Inglês | MEDLINE | ID: mdl-22340083

RESUMO

BACKGROUND: Male Circumcision (MC) has been recommended as one of the preventive measures against sexual HIV transmission by the World Health Organization (WHO). Rwanda has adopted MC as recommended but the country is a non-traditionally circumcising society. The objective was to explore knowledge and perception of Rwandan men on Male Circumcision (MC) and to determine the factors associated with the willingness to be circumcised and to circumcise their sons. METHODS: This cross sectional study was conducted in 29 districts of Rwanda between January and March 2010. Data were collected using a structured questionnaire among men aged 15-59 years. The rate of MC was measured and its perception from respondents, and then the factors associated with the willingness to go for MC were analysed using multiple logistic regressions. RESULTS: A total of 1098 men were interviewed. Among respondents 17% (95% CI 14-19%) reported being circumcised. About three-quarter (72%) could define MC, but 37% of adolescent could not. Half of the participants were willing to get circumcised and 79% of men would accept circumcision for their sons. The main motivators for MC were its benefits in HIV/STI prevention (69%) and improving hygiene (49%). Being too old was the main reason (32%) reported by men reluctant to undergo MC and younger men were afraid of pain in particular those less than 19 years old (42%). The willingness to circumcise was significantly associated with younger age, living in the Eastern Province, marital status, and the knowledge of the preventive role of circumcision. CONCLUSIONS: Adolescents and young adults were more willing to be circumcised. It is critical to ensure the availability of pain free services in order to satisfy the increasing demand for the scale up of MC in Rwanda.


Assuntos
Circuncisão Masculina , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Adolescente , Adulto , Estudos Transversais , Humanos , Entrevistas como Assunto , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Ruanda , Adulto Jovem
5.
BMC Public Health ; 10: 753, 2010 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-21134259

RESUMO

BACKGROUND: Mother-to-child transmission (MTCT) of HIV has been eliminated from the developed world with the introduction of multi-drug antiretroviral (md-ARV) regimens for the prevention of MTCT (PMTCT); but remains the major cause of HIV infection among sub-Saharan African children. This study compares two service delivery models of PMTCT interventions and documents the lessons learned and the challenges encountered during the transition from single-dose nevirapine (sd-nvp) to md-ARV regimens in a resource-limited setting. METHODS: Program data collected from 32 clinical sites was used to describe trends and compare the performance (uptake of HIV testing, CD4 screening and ARV regimens initiated during pregnancy) of sites providing PMTCT as a stand-alone service (stand-alone site) versus sites providing PMTCT as well as antiretroviral therapy (ART) (full package site). CD4 cell count screening, enrollment into ART services and the initiation of md-ARV regimens during pregnancy, including dual (zidovudine [AZT] +sd-nvp) prophylaxis and highly active antiretroviral therapy (HAART) were analysed. RESULTS: From July 2006 to December 2008, 1,622 pregnant women tested HIV positive (HIV+) during antenatal care (ANC). CD4 cell count screening during pregnancy increased from 60% to 70%, and the initiation of md-ARV regimens increased from 35.5% to 97% during this period. In 2008, women attending ANC at full package sites were 30% more likely to undergo CD4 cell count assessment during pregnancy than women attending stand-alone sites (relative risk (RR) = 1.3; 95% confidence interval (CI): 1.1-1.4). Enrollment of HIV+ pregnant women in ART services was almost twice as likely at full package sites than at stand-alone sites (RR = 1.9; 95% CI: 1.5-2.3). However, no significant differences were detected between the two models of care in providing md-ARV (RR = 0.9; 95% CI: 0.9-1.0). CONCLUSIONS: All sites successfully transitioned from sd-nvp to md-ARV regimens for PMTCT. Full package sites offer the most efficient model for providing immunological assessment and enrollment into care and treatment of HIV+ pregnant women. Strengthening the capacity of stand-alone PMTCT sites to achieve the same objectives is paramount.


Assuntos
Antirretrovirais/uso terapêutico , Atenção à Saúde/métodos , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Modelos Organizacionais , Nevirapina/administração & dosagem , Adolescente , Adulto , África Subsaariana , Contagem de Linfócito CD4 , Protocolos Clínicos , Quimioterapia Combinada , Feminino , Infecções por HIV/fisiopatologia , Infecções por HIV/transmissão , Humanos , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Gravidez , Adulto Jovem
7.
J Acquir Immune Defic Syndr ; 75 Suppl 1: S27-S35, 2017 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-28398994

RESUMO

BACKGROUND: Development of country plans for prevention of mother-to-child HIV transmission (PMTCT), including expansion of comprehensive, integrated services, was key to Global Plan achievements. APPROACHES: Use of the PMTCT cascade, an evolving series of sequential steps needed to maximize the health of women and HIV-free survival of infants, was critical for development and implementation of PMTCT plans. Regular review of cascade data at national/subnational levels was a tool for evidence-based decision making, identifying areas of greatest need at each level, and targeting program interventions to address specific gaps. Resulting improvements in PMTCT service delivery contributed to success. Populating the cascade highlighted limitations in data availability and quality that focused attention on improving national health information systems. LIMITATIONS: Use of aggregate, cross-sectional data in the PMTCT cascade presents challenges in settings with high mobility and weak systems to track women and children across services. Poor postnatal follow-up and losses at each step of the cascade have limited use of the cascade approach to measure maternal and child health outcomes beyond the early postnatal period. LESSONS LEARNED: A cascade approach was an effective means for countries to measure progress, identify suboptimal performance areas, and be held accountable for progress toward achievement of Global Plan goals. Using the cascade requires investment of time and effort to identify the type, source, and quality of data needed as programs evolve. Ongoing review of cascade data, with interventions to address discontinuities in the continuum of care, can translate across health areas to improve health care quality and outcomes.


Assuntos
Controle de Doenças Transmissíveis/organização & administração , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Complicações Infecciosas na Gravidez/tratamento farmacológico , Feminino , Saúde Global , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Política de Saúde , Pesquisa sobre Serviços de Saúde , Humanos , Lactente , Recém-Nascido , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/epidemiologia , Nações Unidas
8.
Pan Afr Med J ; 24: 180, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27795777

RESUMO

Health research serves to answer questions concerning health and to accumulate facts (evidence) required to guide healthcare policy and practice. However, research designs vary and different types of healthcare questions are best answered by different study designs. For example, qualitative studies are best suited for answering questions about experiences and meaning; cross-sectional studies for questions concerning prevalence; cohort studies for questions regarding incidence and prognosis; and randomised controlled trials for questions on prevention and treatment. In each case, one study would rarely yield sufficient evidence on which to reliably base a healthcare decision. An unbiased and transparent summary of all existing studies on a given question (i.e. a systematic review) tells a better story than any one of the included studies taken separately. A systematic review enables producers and users of research to gauge what a new study has contributed to knowledge by setting the study's findings in the context of all previous studies investigating the same question. It is therefore inappropriate to initiate a new study without first conducting a systematic review to find out what can be learnt from existing studies. There is nothing new in taking account of earlier studies in either the design or interpretation of new studies. For example, in the 18th century James Lind conducted a clinical trial followed by a systematic review of contemporary treatments for scurvy; which showed fruits to be an effective treatment for the disease. However, surveys of the peer-reviewed literature continue to provide empirical evidence that systematic reviews are seldom used in the design and interpretation of the findings of new studies. Such indifference to systematic reviews as a research function is unethical, unscientific, and uneconomical. Without systematic reviews, limited resources are very likely to be squandered on ill-conceived research and policies. In order to contribute in enhancing the value of research in Africa, the Pan African Medical Journal will start a new regular column that will highlight priority systematic reviews relevant to the continent.


Assuntos
Publicações Periódicas como Assunto , Projetos de Pesquisa , Literatura de Revisão como Assunto , África , Política de Saúde , Pesquisa sobre Serviços de Saúde/métodos , Humanos
9.
J Acquir Immune Defic Syndr ; 72 Suppl 4: S264-72, 2016 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-27404007

RESUMO

INTRODUCTION: Zambia has high HIV prevalence and low voluntary medical male circumcision (VMMC) rates, heightening the need for effective VMMC demand generation strategies for HIV prevention. METHODS: A 3-arm randomized controlled trial measured the impact of 2 short message service (SMS) campaigns on self-reported and verified VMMC uptake over 6 months in Lusaka Province. The study enrolled 2312 uncircumcised males aged 15-30 previously subscribed on Zambia U-Report, an existing SMS platform providing confidential, free counseling services relevant to HIV and other sexually transmitted infections. Participants in the "Conventional" campaign group received a standard package of messages promoting VMMC. Messages sent to the "Tailored" campaign group were targeted at participants' intention level to get circumcised. The control group had routine counselor access through SMS. Data were collected using SMS surveys, and verification of self-reported VMMC uptake used health facility client data. RESULTS: Six-month self-reported VMMC uptake was 11.6%, 12.6%, and 10.4% in the Conventional, Tailored, and control arms, respectively; verified uptake was 1.8%, 1.1%, and 1.5%. Using multivariate logistic regression, the adjusted odds ratio of self-reported VMMC uptake was 1.17 (95% CI: 0.80 to 1.72) in the Conventional campaign arm compared with the control arm and 1.24 (95% CI: 0.84 to 1.81) in the Tailored campaign arm. The adjusted odds ratios of verified VMMC uptake in the Conventional and Tailored campaign arms were 1.34 (95% CI: 0.45 to 4.02) and 0.67 (95% CI: 0.20 to 2.23), respectively. CONCLUSIONS: Neither SMS campaign had statistically significant impact on VMMC uptake compared with routine SMS counseling. Future research is necessary to fully understand the potential of SMS-based tools for VMMC demand creation.


Assuntos
Circuncisão Masculina/estatística & dados numéricos , Envio de Mensagens de Texto , Adolescente , Adulto , Estudos de Casos e Controles , Humanos , Masculino , Adulto Jovem , Zâmbia
10.
PLoS One ; 8(2): e54180, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23437040

RESUMO

BACKGROUND: Rwanda's National PMTCT program aims to achieve elimination of new HIV infections in children by 2015. In November 2010, Rwanda adopted the WHO 2010 ARV guidelines for PMTCT recommending Option B (HAART) for all HIV-positive pregnant women extended throughout breastfeeding and discontinued (short course-HAART) only for those not eligible for life treatment. The current study aims to assess the cost-effectiveness of this policy choice. METHODS: Based on a cohort of HIV-infected pregnant women in Rwanda, we modelled the cost-effectiveness of six regimens: dual ARV prophylaxis with either 12 months breastfeeding or replacement feeding; short course HAART (Sc-HAART) prophylaxis with either 6 months breastfeeding, 12 months breastfeeding, or 18 months breastfeeding; and Sc-HAART prophylaxis with replacement feeding. Direct costs were modelled based on all inputs in each scenario and related unit costs. Effectiveness was evaluated by measuring HIV-free survival at 18 months. Savings correspond to the lifetime costs of HIV treatment and care avoided as a result of all vertical HIV infections averted. RESULTS: All PMTCT scenarios considered are cost saving compared to "no intervention." Sc-HAART with 12 months breastfeeding or 6 months breastfeeding dominate all other scenarios. Sc-HAART with 12 months breastfeeding allows for more children to be alive and HIV-uninfected by 18 months than Sc-HAART with 6 months breastfeeding for an incremental cost per child alive and uninfected of 11,882 USD. This conclusion is sensitive to changes in the relative risk of mortality by 18 months for exposed HIV-uninfected children on replacement feeding from birth and those who were breastfed for only 6 months compared to those breastfeeding for 12 months or more. CONCLUSION: Our findings support the earlier decision by Rwanda to adopt WHO Option B and could inform alternatives for breastfeeding duration. Local contexts and existing care delivery models should be part of national policy decisions.


Assuntos
Terapia Antirretroviral de Alta Atividade/economia , Aleitamento Materno/economia , Infecções por HIV/economia , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/economia , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Mães , Criança , Análise Custo-Benefício , Intervalo Livre de Doença , Feminino , Infecções por HIV/mortalidade , Infecções por HIV/prevenção & controle , Humanos , Lactente , Modelos Biológicos , Gravidez , Ruanda/epidemiologia
11.
J Int AIDS Soc ; 15(1): 4, 2012 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-22289641

RESUMO

BACKGROUND: Operational effectiveness of large-scale national programmes for the prevention of mother to child transmission (PMTCT) of HIV in sub-Saharan Africa remains limited. We report on HIV-free survival among nine- to 24-month-old children born to HIV-positive mothers in the national PMTCT programme in Rwanda. METHODS: We conducted a national representative household survey between February and May 2009. Participants were mothers who had attended antenatal care at least once during their most recent pregnancy, and whose children were aged nine to 24 months. A two-stage stratified (geographic location of PMTCT site, maternal HIV status during pregnancy) cluster sampling was used to select mother-infant pairs to be interviewed during household visits. Alive children born from HIV-positive mothers (HIV-exposed children) were tested for HIV according to routine HIV testing protocol. We calculated HIV-free survival at nine to 24 months. We subsequently determined factors associated with mother to child transmission of HIV, child death and HIV-free survival using logistic regression. RESULTS: Out of 1448 HIV-exposed children surveyed, 44 (3.0%) were reported dead by nine months of age. Of the 1340 children alive, 53 (4.0%) tested HIV positive. HIV-free survival was estimated at 91.9% (95% confidence interval: 90.4-93.3%) at nine to 24 months. Adjusting for maternal, child and health system factors, being a member of an association of people living with HIV (adjusted odds ratio: 0.7, 95% CI: 0.1-0.995) improved by 30% HIV-free survival among children, whereas the maternal use of a highly active antiretroviral therapy (HAART) regimen for PMTCT (aOR: 0.6, 95% CI: 0.3-1.07) had a borderline effect. CONCLUSIONS: HIV-free survival among HIV-exposed children aged nine to 24 months is estimated at 91.9% in Rwanda. The national PMTCT programme could achieve greater impact on child survival by ensuring access to HAART for all HIV-positive pregnant women in need, improving the quality of the programme in rural areas, and strengthening linkages with community-based support systems, including associations of people living with HIV.


Assuntos
Infecções por HIV/mortalidade , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas , Programas Nacionais de Saúde , Avaliação de Programas e Projetos de Saúde , Adulto , Fármacos Anti-HIV/uso terapêutico , Pré-Escolar , Coleta de Dados , Características da Família , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/transmissão , Humanos , Lactente , Masculino , Gravidez , Características de Residência/estatística & dados numéricos , Ruanda , Adulto Jovem
12.
Pan Afr Med J ; 9: 37, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22145068

RESUMO

INTRODUCTION: We sought to compare risk of death among children aged under-2 years born to HIV positive mother (HIV-exposed) and to HIV negative mother (HIV non-exposed), and identify determinants of under-2 mortality among the two groups in Rwanda. METHODS: In a stratified, two-stage cluster sampling design, we selected mother-child pairs using national Antenatal Care (ANC) registers. Household interview with each mother was conducted to capture socio-demographic data and information related to pregnancy, delivery and post-partum. Data were censored at the date of child death. Using Cox proportional hazard model, we compared the hazard of death among HIV-exposed children and HIV non-exposed children. RESULTS: Of 1,455 HIV-exposed children, 29 (2.0%; 95% CI: 1.3%-2.7%) died by 6 months compared to 18 children of the 1,565 HIV non-exposed children (1.2%; 95% CI: 0.6%-1.7%). By 9 months, cumulative risks of death were 3.0% (95%; CI: 2.2%-3.9%) and 1.3% (96%; CI: 0.7%-1.8%) among HIV-exposed and HIV non-exposed children, respectively. By 2 years, the hazard of death among HIV-exposed children was more than 3 times higher (aHR:3.5; 95% CI: 1.8-6.9) among HIV-exposed versus non-exposed children. Risk of death by 9-24 months of age was 50% lower among mothers who attended 4 or more antenatal care (ANC) visits (aHR: 0.5, 95% CI: 0.3-0.9), and 26% lower among families who had more assets (aHR: 0.7, 95% CI: 0.5-1.0). CONCLUSION: Infant mortality was independent of perinatal HIV exposure among children by 6 months of age. However, HIV-exposed children were 3.5 times more likely to die by 2 years. Fewer antenatal visits, lower household assets and maternal HIV seropositive status were associated with increased mortality by 9-24 months.


Assuntos
Soropositividade para HIV , Mortalidade Infantil , Causas de Morte , Mortalidade da Criança , Pré-Escolar , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Lactente , Masculino , Gravidez , Complicações Infecciosas na Gravidez , Estudos Retrospectivos , Fatores de Risco , Ruanda/epidemiologia , Inquéritos e Questionários
13.
PLoS One ; 5(4): e10411, 2010 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-20454459

RESUMO

BACKGROUND: Multidrug antiretroviral (ARV) regimens including HAART and short-course dual antiretroviral (sc-dARV) regimens were introduced in 2004 to improve Prevention of Mother-to-Child Transmission (PMTCT) in Cameroon. We assessed the effectiveness of these regimens from 6-10 weeks and 12 months of age, respectively. METHODOLOGY/FINDINGS: We conducted a retrospective cohort study covering the period from October 2004 to March 2008 in a reference hospital in Cameroon. HIV-positive pregnant women with CD4 < or = 350 cells/mm(3) received first-line HAART [regimen 1] while the others received ARV prophylaxis including sc-dARV or single dose nevirapine (sd-NVP). Sc-dARV included at least two drugs according to different gestational ages: zidovudine (ZDV) from 28-32 weeks plus sd-NVP [regimen 2], ZDV and lamuvidine (3TC) from 33-36 weeks plus sd-NVP [regimen 3]. When gestational age was > or = 37 weeks, women received sd-NVP during labour [regimen 4]. Infants received sd-NVP plus ZDV and 3TC for 7 days or 30 days. Early diagnosis (6-10 weeks) was done, using b-DNA and subsequently RT-PCR. We determined early MTCT rate and associated risk factors using logistic regression. The 12-month HIV-free survival was assessed using Cox regression. Among 418 mothers, 335 (80%) received multidrug ARV regimens (1, 2, and 3) and MTCT rate with multidrug regimens was 6.6% [95%CI: 4.3-9.6] at 6 weeks, without any significant difference between regimens. Duration of mother's ARV regimen < 4 weeks [OR = 4.7, 95%CI: 1.3-17.6], mother's CD4 < 350 cells/mm(3) [OR = 6.4, 95%CI: 1.8-22.5] and low birth weight [OR = 4.0, 95%CI: 1.4-11.3] were associated with early MTCT. By 12 months, mixed feeding [HR = 8.7, 95%CI: 3.6-20.6], prematurity [HR = 2.3, 95%CI: 1.2-4.3] and low birth weight were associated with children's risk of progressing to infection or death. CONCLUSIONS: Multidrug ARV regimens for PMTCT are feasible and effective in routine reference hospital. Early initiation of ARV during pregnancy and proper obstetrical care are essential to improve PMTCT.


Assuntos
Antirretrovirais/administração & dosagem , Infecções por HIV/tratamento farmacológico , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Adulto , Terapia Antirretroviral de Alta Atividade , Camarões , Estudos de Coortes , Quimioterapia Combinada , Feminino , Infecções por HIV/transmissão , HIV-1 , Serviços de Saúde , Humanos , Recém-Nascido , Gravidez , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento
15.
Contraception ; 80(5): 484-92, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19835725

RESUMO

BACKGROUND: The objectives of this clinical trial were to evaluate the safety, tolerance and acceptability of two gel formulations of the Invisible Condom: (i) the polymer alone and (ii) the polymer-containing sodium lauryl sulfate (SLS) compared to placebo when applied intravaginally with our unique applicator in sexually abstinent and active woman volunteers. STUDY DESIGN: A randomized, doubled-blind, placebo-controlled study in healthy women from Yaoundé, Cameroon. Two hundred sixty women were randomized into three gel arms: (a) gel alone, (b) gel plus SLS and (c) placebo gel. Thirty-seven sexually abstinent women applied gel intravaginally once a day for 14 days, while 75, 74 and 74 sexually active women applied gel intravaginally once, twice or three times daily for 14 days, respectively. RESULTS: Retention rate was high at 85% and 221 women applied the two products and the placebo for a total of 6005 times. Nugent score, H(2)O(2)-producing lactobacilli and vaginal pH were stable throughout the study and were not affected by the study products. Colposcopy showed neither genital ulceration nor mucosal lesions. No study product-related serious adverse events were reported. The majority of reported adverse events were mild or moderate and largely similar in all 3 arms. Satisfaction questionnaire showed that the gel formulations and applicator were generally comfortable and acceptable. CONCLUSION: The Invisible Condom formulations and applicator were found to be comfortable, well tolerated and acceptable when applied intravaginally once, twice or thrice daily for 14 days. Thus, expanded safety evaluation is warranted.


Assuntos
Anti-Infecciosos , Colo do Útero/patologia , Satisfação do Paciente/estatística & dados numéricos , Poloxaleno , Dodecilsulfato de Sódio , Vagina/microbiologia , Adolescente , Adulto , Anti-Infecciosos/administração & dosagem , Anti-Infecciosos/efeitos adversos , Camarões , Estudos de Coortes , Método Duplo-Cego , Feminino , Géis/administração & dosagem , Géis/efeitos adversos , Humanos , Pessoa de Meia-Idade , Poloxaleno/administração & dosagem , Poloxaleno/efeitos adversos , Estudos Prospectivos , Parceiros Sexuais/psicologia , Infecções Sexualmente Transmissíveis/prevenção & controle , Infecções Sexualmente Transmissíveis/transmissão , Dodecilsulfato de Sódio/administração & dosagem , Dodecilsulfato de Sódio/efeitos adversos , Inquéritos e Questionários , Vagina/patologia , Cremes, Espumas e Géis Vaginais/administração & dosagem , Cremes, Espumas e Géis Vaginais/efeitos adversos , Adulto Jovem
16.
Pan Afr Med J ; 1: 2, 2008 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-21532891

RESUMO

BACKGROUND: Retention in long-term antiretroviral therapy (ART) program remains a major challenge for effective management of HIV infected people in sub-Saharan Africa. Highly Active Antiretroviral Therapy (ART) discontinuation raises concerns about drug resistance and could negate much of the benefit sought by ART programs. METHODS: Based on existing patient records, we assessed determinants of retention in HIV care among HIV patients enrolled in an urban ART at two urban hospitals in Cameroon. Extended Cox regression procedures were used to identify significant predictors of retention in HIV care. RESULTS: Of 455 patients, 314 (69%) were women, median (IQR) age and baseline CD4 cell count were respectively 36 years (30 - 43) and 110 cells/µL (39 - 177). Forty patients (9%) had active tuberculosis (TB) at enrollment. After a median (IQR) follow-up of 18 months (10-18), 346 (75%) were still in care, 8 (2%) were known dead, and 101 (22%) were lost to follow-up (LFU). Severe immunosuppression (CD4 cell count ≤ 50 cells/µL) at baseline (aHR 2.3; 95% CI 1.4 - 3.7) and active tuberculosis upon enrollment (aHR 1.8; 95% CI 1.0 - 3.6) were independent predictors of cohort losses to follow-up within the first 6 months after HAART initiation. CONCLUSION: These data suggest that three-quarter of HIV patients initiated on HAART remained in care and on HAART by 18 months; however, those with compromised immunologic status at treatment initiation, and those co-infected with TB were at increased risk for being lost to follow-up within the first 6 months on treatment.

17.
J Trop Pediatr ; 53(6): 438-9, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17578849

RESUMO

UNLABELLED: The aim of the study was to evaluate the feasibility of infant feeding options of HIV positive mothers in urban areas (especially compliance to artificial feeding choices), before the implementation of the infant feeding interventions and procurement of breastmilksubstitutes. We conducted a survey among seropositive women diagnosed during pregnancy and counselled for infant feeding options. At 6 months post delivery an interview was done. 47 mothers were included. Bromocriptine was prescribed to all the mothers who opted for artificial feeding from birth. FINDINGS: After counselling 85% of women opted for exclusive artificial feeding of whom 83% mothers practised this option since birth. For those who opted for replacement feeding The main given reason for infant feeding choice was related to medical or nurses advices. Overall 36% [CI 95%, 22-50] of the mothers who opted for artificial milk faced difficulties to afford supplies during the 6 months, leading into an early introduction of paps. Clinical mastitis were mentioned by all those mothers who breastfed. Infant feeding choices were related to the level of education (X2 = 24.10, P = 0.002). CONCLUSION: Artificial feeding under recovery of cost seems feasible in urban areas in Cameroon and can be facilitate by the administration of antilacteal drugs. More adequate support must be provided for the mother who breastfeed in order to prevent and to treat mastitis. Additional training for counselling in HIV and infant feeding options is recommended for health workers.


Assuntos
Alimentação com Mamadeira , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Cooperação do Paciente , Alimentação com Mamadeira/economia , Camarões , Estudos de Viabilidade , Feminino , Humanos , Lactente , População Urbana
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