Patent ductus arteriosus (PDA) is a persistence after birth of the normal fetal connection (ductus arteriosus) between the aorta and pulmonary artery, resulting in a left-to-right shunt. Manifestations depend on the size of the PDA and the age of the child, but a continuous murmur is characteristic and, if loud, has a “machinery sounding ...

2023年8月8日 · The ductus arteriosus is a fetal vessel that allows the oxygenated blood from the placenta to bypass the lungs in utero. At birth, the lungs fill with air with the first breaths, pulmonary vascular resistance drops, and blood flows …

2006年10月24日 · The patent ductus arteriosus (PDA) is a vascular structure that connects the proximal descending aorta to the roof of the main pulmonary artery near the origin of the left branch pulmonary artery. This essential fetal structure normally closes spontaneously after birth.

2024年3月1日 · The evaluation of PDA and left-to-right shunt includes physical examination findings and echocardiography. A PDA shunt have an impact on premature morbidities such as bronchopulmonary dysplasia (BPD), pulmonary and intraventricular hemorrhage (IVH), necrotizing enterocolitis (NEC), retinopathy of prematurity (ROP), and ultimately mortality. 1

Failure of ductus arteriosus closure, termed patent ductus arteriosus (PDA), is primarily an affliction of prematurity, with the ductus remaining open at 7 days of age in up to 64% of infants born at 27 to 28 weeks’ gestation and 87% of infants born at 24 weeks.

The PDA is closed by tying it with suture (thread-like material) or by permanently placing a small metal clip around the PDA to squeeze it closed. Occasionally in the adult, a surgical patch is used. If there's no other heart defect, this restores the circulation to normal.

2024年12月1日 · Ductus arteriosus (DA) is a shunt that allows blood from the right ventricle to bypass the fetal lungs to perfuse the lower part of body and the placenta. In term babies it functionally closes after birth and is sealed within a few days for transition to postnatal circulation.

2022年9月3日 · In most contemporary settings, transcatheter closure is preferable over surgical ligation, but data on longer‐term outcomes, particularly among preterm infants, are lacking. The present review provides recommendations to identify gaps in PDA diagnosis, management, and treatment on which subsequent research can be developed.

The ductus arteriosus is a blood vessel found in almost all fetuses that communicates between the pulmonary artery and aorta to allow blood to shunt away from the developing lungs while in utero. This vessel typically closes shortly after birth, but can remain patent, particularly in premature infants, and is known as a patent ductus arteriosus ...

2023年8月20日 · A patent ductus arteriosus is the failure of the ductus arteriosus to close within the first 72 hours of life. 1 This is more common in premature infants but also occurs in term infants. Patent ductus arteriosus accounts for up to 10% of all congenital heart defects.