What Happens to the Ductus Arteriosus?

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After birth, the increase in oxygen concentration and decrease in prostaglandins lead to its constriction and eventual closure. Functional closure typically occurs within the first day, while anatomical closure may take a few weeks.</div></div> </div> <hr /> <h3 class="rq-heading">Frequently asked queries:</h3> <div class="qa-container"> <div class="qa-item"> <a href="https://neonatalbiology.com/knowledgebase/what-are-the-primary-cardiovascular-changes" title="What are the Primary Cardiovascular Changes?">What are the Primary Cardiovascular Changes?</a> </div> <div class="qa-item"> <a href="https://neonatalbiology.com/knowledgebase/how-does-the-foramen-ovale-close" title="How Does the Foramen Ovale Close?">How Does the Foramen Ovale Close?</a> </div> <div class="qa-item"> <a href="https://neonatalbiology.com/knowledgebase/what-happens-to-the-ductus-arteriosus" title="What Happens to the Ductus Arteriosus?">What Happens to the Ductus Arteriosus?</a> </div> <div class="qa-item"> <a href="https://neonatalbiology.com/knowledgebase/what-are-the-management-strategies-for-nutrient-deficiencies" title="What Are the 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