• Min-A Kim, You Sun Lee, Nan Hee Yee, Jeong Soo Choi, Jung Yun Choi, and Kyung Seo.
• Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Institute of Women's Medical Life Science, Yonsei University College of Medicine, Seoul, Korea.
• J. Korean Med. Sci. 2014 Nov 1; 29 (11): 154415491544-9.

AbstractCongenital heart defect (CHD) is common in infants with Down syndrome (DS), which is the principle cause of mortality. However, there is no data available for the frequency and types of CHD in infants with DS in Korea. We investigated the frequency of CHD in infants with DS in Korea. After the survey on birth defects was conducted throughout the country, the prevalence of CHD in DS in 2005-2006 was calculated. This study was conducted based on the medical insurance claims database of the National Health Insurance Corporation. The number of total births in Korea was 888,263 in 2005-2006; of them, 25,975 cases of birth defects were identified. The prevalence of DS was 4.4 per 10,000 total births, accounting for 1.5% of all birth defects. Of the 394 infants with DS, 224 (56.9%) had a CHD. Atrial septal defect was the most common defect accounting for 30.5% of DS followed by ventricular septal defect (19.3%), patent duct arteriosus (17.5%), and atrioventricular septal defect (9.4%). Our study will be helpful to demonstrate the current status of DS and to identify the distribution of CHD in infants with DS in Korea.

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