PAPER: women who smoke cigarettes during the first trimester of pregnancy may increase their offspring's risk for congenital heart defects (CHDs)..

March 1, 2011 - The study investigated associations between maternal cigarette smoking during the first trimester and the risk of congenital heart defects (CHDs) among the infants.

PAPER: Maternal Smoking and Congenital Heart Defects in the Baltimore-Washington Infant Study, Clinton J. Alverson, MS, Matthew J. Strickland, PhD, Suzanne M. Gilboa, PhD, Adolfo Correa, MD, PhD, Pediatrics - published online February 28, 2011, ABSTRACT..

Women who smoke cigarettes during the first trimester of pregnancy may increase their offspring's risk for congenital heart defects (CHDs).

Clinton J. Alverson, of the U.S. Centers for Disease Control and Prevention in Atlanta, and colleagues analyzed 2,525 case and 3,435 control infants from a study of CHDs to investigate associations between cigarette smoking during the first trimester of pregnancy and the risk of infant CHDs. The researchers found a significant positive association between first-trimester cigarette smoking and risk for secundum-type atrial septal defects, right ventricular outflow tract defects, pulmonary valve stenosis, truncus arteriosus, and levo-transposition of the great arteries (odds ratios, 1.36, 1.32, 1.35, 1.90, and 1.79, respectively). In addition, they observed a suggestive association for atrioventricular septal defects in infants without Down syndrome (odds ratio, 1.50).

"These findings add to the existing body of evidence that implicates first-trimester maternal cigarette smoking as a modest risk factor for select CHD phenotypes," the authors write.

Reference: Cigarette Smoking Associated With Congenital Heart Defects,, 2/28/2011.

Some pregnancy related news briefs:
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Massachusetts South Coast - smoking among pregnant women far surpasses state average..;
NICE wants all pregnant women in the UK to be tested for the presence of smoking..;
Smoking during pregnancy - potentially negative effect on reproductive health in the next generation..;
Maternal Smoking - important risk factor in the development of psychotic experiences in their children..;
England - program to pay pregnant women not to smoke seems hopeful..;
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