• Beatriz Elizabeth Bagatin Veleda Bermudez, Sandra Lira Medeiros, Mariane Bagatin Bermudez, Iolanda Maria Novadzki, and Neiva Isabel Rodrigues Magdalena.
• Postgraduate Program on Children's and Adolescents' Health, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
• Sao Paulo Med J. 2015 Nov 1; 133 (6): 521524521-4.

Context And ObjectiveDown syndrome is the most common genetic disorder, affecting 1/700 live births. Among the clinical findings, one constant concern is the high prevalence of congenital heart disease. The objective of this study was to determine the prevalence and profile of congenital heart disease among patients attended at a Down syndrome outpatient clinic in southern Brazil between 2005 and 2013.Design And SettingCross-sectional study conducted in a referral center.MethodsData were retrospectively gathered from the medical files of 1,207 patients with Down syndrome, among whom 604 (50.0%) had been diagnosed with congenital heart disease. These data were subjected to descriptive analysis using the Statistica software.ResultsAmong the 604 patients with congenital heart disease, 338 (55.8%) were male and 269 (44.5%) were female. The most common heart diseases were atrial septal defect in 254 patients (42.1%); total atrioventricular septal defect in 91 (15.1%); atrial septal defect and ventricular septal defect in 88 (14.6%); ventricular septal defect in 77 (12.7%); patent ductus arteriosus in 40 (6.6%); patent foramen ovale in 34 (5.6%) patients; tetralogy of Fallot in 12 (2%); and other diseases in 8 (1.3%). Pulmonary hypertension was present in 57 (9.4%). Out of the total, 150 patients (24.8%) underwent cardiac surgery.ConclusionThe high prevalence of congenital heart disease among the patients at the Down syndrome outpatient clinic (50%) was similar to findings from other studies and justifies investigation during the neonatal period, so as to decrease mortality and morbidity.

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