Why the study?
Do the dimensions of the ductus arteriosus differ between male and female fetuses?
Population
223 fetuses ranging in age from four to eight months of intrauterine life, obtained from spontaneous…
Design
Cross-sectional
Authors
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Challenges anatomical hypothesis for female PDA predominance; leaves open alternative mechanisms for prospective study.
Do the dimensions of the ductus arteriosus differ between male and female fetuses?
The higher prevalence of patent ductus arteriosus in females is not explained by sex-based differences in the anatomical dimensions of the ductus arteriosus during fetal life.
Nowak et al. (2011) studied this question.
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