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Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
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Epidemiology of congenital heart disease in Brazil

Valdester Cavalcante Pinto Júnior1, Klébia Magalhães P Castello Branco2, Rodrigo Cardoso Cavalcante3

  • 1Hospital Messejana, CE, Brazil.

Revista Brasileira De Cirurgia Cardiovascular : Orgao Oficial Da Sociedade Brasileira De Cirurgia Cardiovascular
|June 25, 2015
PubMed

Insights

Congenital heart disease (CHD) is significantly underreported in Brazil. Current data capture only 5.3% of estimated cases, highlighting critical gaps in public health surveillance for this condition.

Area of Science:

  • Cardiology
  • Public Health
  • Epidemiology

Background:

  • Congenital heart disease (CHD) represents structural or functional abnormalities present from birth, with potential for severe outcomes.
  • In Brazil, CHD accounted for 6% of infant deaths in 2007, underscoring its public health significance.

Purpose of the Study:

  • To quantify the extent of underreporting in the prevalence of congenital heart disease (CHD) in Brazil.
  • To analyze underreporting across different subtypes of CHD.

Main Methods:

  • Prevalence calculations utilized established coefficients and function rates, comparing literature data with governmental registries.
  • An estimated incidence of 9 per 1000 births was applied to 2010 birth data.
  • Descriptive methods, including rates and coefficients, were used to compare estimated CHD cases with Ministry of Health reports.

Main Results:

  • An estimated 25,757 new cases of CHD occur annually in Brazil.
  • Only 1,377 cases (5.3% of the estimate) were reported to the Ministry of Health in 2010.
  • Key subtypes identified include ventricular septal defect, atrial septal defect, and persistent ductus arteriosus.

Conclusions:

  • Significant underreporting of congenital heart disease prevalence exists in Brazil.
  • Current registration methodologies require revision to accurately capture CHD incidence and prevalence.
  • Improved data collection is crucial for effective public health strategies and interventions for CHD.
Abstract

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