Document Detail


Combined adverse effects of maternal smoking and high body mass index on heart development in offspring: evidence for interaction?
MedLine Citation:
PMID:  22294555     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
ObjectiveTo study the influence of a possible interaction between maternal smoking and high body mass index (BMI) on the occurrence of specific congenital heart anomalies (CHA) in offspring.DesignCase-control study.SettingData from a population-based birth defects registry in the Netherlands.PatientsCases were 797 children and fetuses born between 1997 and 2008 with isolated non-syndromic CHA. They were classified into five cardiac subgroups: septal defects (n=349), right ventricular outflow tract obstructive anomalies (n=126), left ventricular outflow tract obstructive anomalies (n=139), conotruncal defects (n=115) and other CHA (n=68). Controls were 322 children and fetuses with chromosomal anomalies without cardiac anomalies.Main outcome measuresInvestigation of whether an interaction between maternal smoking and high BMI influences the occurrence of CHA in offspring by calculation of the synergy factors and 95% CIs.ResultsAs opposed to smoking or high BMI alone, the risk for CHA in the offspring of women with high BMI (≥25 kg/m(2)) who also smoked was significantly increased. The adjusted OR was 2.65 (95% CI 1.20 to 5.87) for all CHA, 2.60 (95% CI 1.05 to 6.47) for septal defects and 3.58 (95% CI 1.46 to 8.79) for outflow tract anomalies. The interaction between maternal high BMI and smoking contributed significantly to the occurrence of all offspring-CHA combined, and to the occurrence of all cardiac subgroup anomalies except right ventricular outflow tract obstructive anomalies.ConclusionsMaternal overweight and smoking may have a synergistic adverse effect on the development of the fetal heart. Overweight women who wish to become pregnant should be strongly encouraged to stop smoking and to lose weight.
Authors:
Maria E Baardman; Wilhelmina S Kerstjens-Frederikse; Eva Corpeleijn; Hermien E K de Walle; Robert M W Hofstra; Rolf M F Berger; Marian K Bakker
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-30
Journal Detail:
Title:  Heart (British Cardiac Society)     Volume:  -     ISSN:  1468-201X     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-2-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9602087     Medline TA:  Heart     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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