Elisabeth Leirgul1, Tatiana Fomina2, Kristoffer Brodwall3, Gottfried Greve4, Henrik Holmstrøm5, Stein Emil Vollset6, Grethe S Tell6, Nina Øyen7. 1. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Department of Heart Disease, Haukeland University Hospital, Bergen, Norway. Electronic address: elisabeth.leirgul@uib.no. 2. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway. 3. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Department of Pediatrics, Haukeland University Hospital, Bergen, Norway. 4. Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Department of Medical Science, University of Bergen, Bergen, Norway. 5. Department of Pediatrics, Oslo University Hospital, Rikshospitalet, Oslo, Norway. 6. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Division of epidemiology, Norwegian Institute of Public Health, Bergen, Norway. 7. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway.
Abstract
BACKGROUND: The reasons for decreasing birth prevalence of congenital heart defects (CHDs) in several European countries and Canada are not fully understood. We present CHD prevalence among live births, stillbirths, and terminated pregnancies in an entire nation over a period of 16 years. METHODS: Information on all births in the Medical Birth Registry of Norway, 1994-2009, was updated with information on CHD from the hospitals' Patient Administrative Systems, the National Hospital's clinical database for children with heart disease, and the Cause of Death Registry. Individuals with heart defects were assigned specific cardiac phenotypes. RESULTS: Among 954,413 births, 13,081 received a diagnosis of CHD (137.1 per 10,000 births, 133.2 per 10,000 live births). The prevalence per 10,000 births was as follows: heterotaxia, 1.6; conotruncal defects, 11.6; atrioventricular septal defects, 5.6; anomalous pulmonary venous return, 1.1; left outflow obstructions, 8.7; right outflow obstructions, 5.6; septal defects, 65.5; isolated patent ductus arteriosus, 24.6; and other specified or unspecified CHD, 12.7. Excluding preterm patent ductus arteriosus, the CHD prevalence was 123.4 per 10,000; per year, the prevalence increased with 3.5% (95% CI 2.5-4.4) in 1994-2005 and declined with 9.8% (-16.7 to -2.4) from 2005 onwards. Severe CHD prevalence was 30.7 per 10,000; per-year increase was 2.3% (1.1-3.5) in 1994-2004, and per-year decrease was 3.4% (-6.6 to -0.0) in 2004-2009. Numbers included severe CHD in stillbirths and terminated pregnancies. CONCLUSIONS: The birth prevalence of CHD declined from around 2005. Specifically, the prevalence of severe CHD was reduced by 3.4% per year from 2004 through 2009.
BACKGROUND: The reasons for decreasing birth prevalence of congenital heart defects (CHDs) in several European countries and Canada are not fully understood. We present CHD prevalence among live births, stillbirths, and terminated pregnancies in an entire nation over a period of 16 years. METHODS: Information on all births in the Medical Birth Registry of Norway, 1994-2009, was updated with information on CHD from the hospitals' Patient Administrative Systems, the National Hospital's clinical database for children with heart disease, and the Cause of Death Registry. Individuals with heart defects were assigned specific cardiac phenotypes. RESULTS: Among 954,413 births, 13,081 received a diagnosis of CHD (137.1 per 10,000 births, 133.2 per 10,000 live births). The prevalence per 10,000 births was as follows: heterotaxia, 1.6; conotruncal defects, 11.6; atrioventricular septal defects, 5.6; anomalous pulmonary venous return, 1.1; left outflow obstructions, 8.7; right outflow obstructions, 5.6; septal defects, 65.5; isolated patent ductus arteriosus, 24.6; and other specified or unspecified CHD, 12.7. Excluding preterm patent ductus arteriosus, the CHD prevalence was 123.4 per 10,000; per year, the prevalence increased with 3.5% (95% CI 2.5-4.4) in 1994-2005 and declined with 9.8% (-16.7 to -2.4) from 2005 onwards. Severe CHD prevalence was 30.7 per 10,000; per-year increase was 2.3% (1.1-3.5) in 1994-2004, and per-year decrease was 3.4% (-6.6 to -0.0) in 2004-2009. Numbers included severe CHD in stillbirths and terminated pregnancies. CONCLUSIONS: The birth prevalence of CHD declined from around 2005. Specifically, the prevalence of severe CHD was reduced by 3.4% per year from 2004 through 2009.
Authors: J G Seidman; Christine E Seidman; Sarah U Morton; Alexandre C Pereira; Daniel Quiat; Felix Richter; Alexander Kitaygorodsky; Jacob Hagen; Daniel Bernstein; Martina Brueckner; Elizabeth Goldmuntz; Richard W Kim; Richard P Lifton; George A Porter; Martin Tristani-Firouzi; Wendy K Chung; Amy Roberts; Bruce D Gelb; Yufeng Shen; Jane W Newburger Journal: Circ Genom Precis Med Date: 2022-02-07
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