Isolated atrioventricular canal defects: birth outcomes and risk factors: a population-based Hungarian case-control study, 1980-1996

Birth Defects Research. Part A, Clinical and Molecular Teratology
Attila VereczkeyAndrew E Czeizel

Abstract

The role of possible environmental factors in the origin of congenital heart defects is unclear in the vast majority of patients. The objective of this study was to describe the birth outcomes and risk factors in isolated atrioventricular canal defect (AVCD) cases. Medically recorded birth outcomes, maternal age, parity, acute and chronic maternal diseases with related drug treatments and folic acid/multivitamin supplementation were evaluated in isolated AVCD cases. The diagnosis of AVCD was based on the autopsy report or surgical description in the population-based Hungarian Case-Control Surveillance of Congenital Abnormalities, between 1980 and 1996. The birth outcomes and exposures of 77 isolated AVCD cases were compared with 38,151 controls without defect. Mean gestational age at delivery (38.6 week) and birth weight (2992 g), rate of preterm birth (20.8%) and low birthweight (23.4%) of cases with a female excess (59.7%) differed significantly from the controls. Mothers of cases had higher parity, higher prevalence of conduction disorders/cardiac dysrhythmias and chronic hypertension. The high doses of folic acid in early pregnancy associated with a reduced rate of AVCD. Conduction disorders/cardiac dysrhythmias and chronic...Continue Reading

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Citations

Dec 6, 2018·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Maciej SłodkiUNKNOWN International Prenatal Cardiology Collaboration Group

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