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Prevalence and patterns of congenital heart diseases in Africa: a systematic review and meta-analysis protocol
Aurel T Tankeu1, Jean Joel R Bigna2,3, Jobert Richie N Nansseu4,5
1Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, Yaoundé, Cameroon.
Insights
This systematic review examines congenital heart diseases (CHD) in Africa. It aims to determine the prevalence and patterns of CHD to improve preventive strategies for children and adolescents.
Area of Science:
- Cardiology
- Public Health
- Epidemiology
Background:
- Congenital heart diseases (CHD) are a significant cause of illness and death in young people in Africa.
- Accurate epidemiological data are crucial for developing effective prevention and treatment strategies.
- Existing data on CHD prevalence and patterns across Africa are limited.
Purpose of the Study:
- To systematically review and meta-analyze the prevalence of CHD in Africa.
- To identify the main patterns of congenital heart diseases across different African regions.
- To provide a comprehensive epidemiological overview to inform public health interventions.
Main Methods:
- Systematic review and meta-analysis of published studies (1986-2016).
- Inclusion of cross-sectional, case-control, and cohort studies with echocardiographic confirmation of CHD.
- Data extraction and bias assessment by two independent reviewers, with random-effects meta-analysis for prevalence estimation.
Main Results:
- The review will synthesize prevalence data from diverse African populations.
- Analysis will identify regional variations in CHD patterns.
- Publication bias will be assessed using funnel plots and Egger's test.
Conclusions:
- This study will establish a baseline for CHD burden in Africa.
- Findings will guide targeted public health initiatives and resource allocation.
- The results will be disseminated through a peer-reviewed publication.
Introduction:
Congenital heart diseases (CHD) are common causes of cardiovascular morbidity and mortality among young children and adolescents living in Africa. Accurate epidemiological data are needed in order to evaluate and improve preventive strategies. This review aims to determine the prevalence of CHD and their main patterns in Africa.
Methods And Analysis:
This systematic review and meta-analysis will include cross-sectional, case-control and cohort studies of populations residing inside African countries, which have reported the prevalence of CHD, confirmed by an echocardiographic examination and/or describing different patterns of these abnormalities in Africa. Relevant abstracts published without language restriction from 1 January 1986 to 31 December 2016 will be searched in PubMed, Exerpta Medica Database and online African journals as well as references of included articles and relevant reviews. Two review authors will independently screen, select studies, extract data and assess the risk of bias in each study. The study-specific estimates will be pooled through a random-effects meta-analysis model to obtain an overall summary estimate of the prevalence of CHD across studies. Clinical and statistical heterogeneity will be assessed, and we will pool studies judged to be clinically homogeneous. On the other hand, statistical heterogeneity will be evaluated by the χ2 test on Cochrane's Q statistic. Funnel-plots analysis and Egger's test will be used to detect publication bias. Results will be presented by geographic region (central, eastern, northern, southern and western Africa).
Ethics And Dissemination:
The current study will be based on published data, and thus ethical approval is not required. This systematic review and meta-analysis is expected to serve as a base which could help in estimating and evaluating the burden of these abnormalities on the African continent. The final report of this study will be published in a peer-reviewed journal.
Trial Registration Number:
PROSPERO CRD42016052880.
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