Increased Risk of Congenital Heart Disease in Twins in the North of England Between 1998 and 2010
Overview
Affiliations
Objective: To examine the relative risk (RR) of congenital heart disease (CHD) in twins compared with singletons, according to chorionicity.
Methods: Twins and singletons with CHD notified to the Northern Congenital Abnormality Survey between 1998 and 2010 were included in this population-based study. Information on chorionicity was obtained from the Northern Survey of Twins and Multiple Pregnancy. Prevalence was calculated as the number of cases occurring in live births, late miscarriages (20-23 weeks), stillbirths (≥24 weeks) and terminations of pregnancy for fetal anomaly, per 10 000 total births. The risk of CHD in twins compared with singletons was estimated using Poisson regression.
Results: There were 399 414 singleton births of which 2984 (0.7%) had CHD. Among 11 871 twin births, 154 (1.3%) had CHD; one twin was affected by CHD in 2.5% of twin pregnancies. Of 8605 dichorionic (DC) births and 2317 monochorionic (MC) births, 96 (1.1%) and 47 (2.0%) were associated with CHD. Compared with singletons, twins were at significantly increased risk of CHD (RR=1.73, 95% CI 1.48 to 2.04; p<0.001). MC twins were at 82% significantly increased risk of CHD compared with DC twins (RR=1.82, 95% CI 1.29 to 2.57; p<0.001). The RR of severe and mild CHD was particularly high in MC twins compared with singletons (292% increased risk, RR=3.92, 95% CI 1.25 to 12.30, p=0.02 and 207% increased risk, RR=3.07, 95% CI 2.20 to 4.28; p<0.001).
Conclusions: Compared with singletons, twins were at increased risk of CHD, the risk being substantially higher among MC twins. This information is important for health professionals when counselling women with twin pregnancies.
Chromosomal analysis and short-term outcome of prenatally diagnosed congenital heart disease.
Verbeke M, Hannes L, Devriendt K, Van den Bogaert K, Cools B, De Catte L Sci Rep. 2025; 15(1):3923.
PMID: 39890866 PMC: 11785992. DOI: 10.1038/s41598-025-88570-8.
Congenital heart defects in children born after assisted reproductive technology: a CoNARTaS study.
Sargisian N, Petzold M, Furenas E, Gissler M, Spangmose A, Malchau Lauesgaard S Eur Heart J. 2024; .
PMID: 39326528 PMC: 11638113. DOI: 10.1093/eurheartj/ehae572.
Risk-prediction nomogram for congenital heart disease in offspring of Chinese pregnant women.
Qu P, Zhang S, Chen J, Li X, Zhao D, Liu D BMC Pregnancy Childbirth. 2024; 24(1):509.
PMID: 39068423 PMC: 11283715. DOI: 10.1186/s12884-024-06708-4.
Dichorionic Diamniotic Twin Pairs with Complex Congenital Heart Disease.
Kohli U, Perrotta M, Aljemmali S, Sosnowski C, Cardenas Y, Sharma K Pediatr Cardiol. 2023; 46(1):213-221.
PMID: 37964109 DOI: 10.1007/s00246-023-03339-y.
Prevalence of congenital heart defects in Europe, 2008-2015: A registry-based study.
Mamasoula C, Addor M, Carbonell C, Dias C, Echevarria-Gonzalez-de-Garibay L, Gatt M Birth Defects Res. 2022; 114(20):1404-1416.
PMID: 36345679 PMC: 10098845. DOI: 10.1002/bdr2.2117.