The effect of cigarette smoking during pregnancy on mode of delivery in uncomplicated term singleton pregnancies. (May 2014)

• Record Type: Journal Article
• Authors: Lurie, Samuel; Ribenzaft, Shay; Boaz, Mona; Golan, Abraham; Sadan, Oscar
• Is Part Of: Journal of maternal-fetal & neonatal medicine. Volume 27:Number 8(2014:Aug.)
• Page Start: 812
• Page End: 815
• Publication Date: 2014-05
• Subjects: Obstetrics -- Periodicals; Perinatology -- Periodicals; Infants (Newborn) -- Diseases -- Periodicals; Neonatology -- Periodicals; 618.2
• DOI: 10.3109/14767058.2013.842551
• Languages: English
• ISSNs: 1476-7058

Abstract

<abstract> <title>Abstract</title> <p> <italic>Objective</italic>: To examine the influence of cigarette smoking during pregnancy on mode of delivery.</p> <p> <italic>Methods</italic>: A retrospective analysis of 6105 uncomplicated term singleton pregnancies for mode of delivery was performed with respect to smoking status.</p> <p> <italic>Results</italic>: Of all, 680 (84.0%) smokers and 4588 (86.7%) non-smokers had a spontaneous vaginal delivery, 65 (8.0%) smokers and 393 (7.4%) non-smokers had an instrumental delivery and 65 (8.0%) smokers and 314 (5.9%) non-smokers had a cesarean delivery (<italic>p</italic> = 0.051). Smoking during pregnancy increased the risk of any operative or instrumental intervention by OR 1.240, 95% CI 1.012–1.523. Non-reassuring fetal heart rate pattern that warranted either cesarean or instrumental intervention was present in 99 (12.2%) out of 810 smokers and in 392 out of 5295 (7.4%) non-smokers, <italic>p</italic> &lt; 0.001). Smoking during pregnancy increased the risk of non-reassuring fetal heart rate pattern that warranted either cesarean or instrumental intervention by OR 1.650 (95% CI 1.341–2.022).</p> <p> <italic>Conclusion</italic>: Women with uncomplicated term singleton pregnancies who smoke during pregnancy are at an increased risk of fetal compromise during labor (as judged by non-reassuring fetal heart rate pattern), leading to increased rates of operative delivery (cesarean either instrumental).</p> </abstract>