Regulation of the ductus arteriosus, an essential fetal vessel connecting the pulmonary artery and aorta, is complex. Failure of this vessel to close after birth may result in a persistent left-to-right shunt through the patent ductus arteriosus, a condition associated with significant morbidities. Numerous factors contribute to the shift from fetal ductus patency to postnatal closure, requiring precise coordination of molecular cues with biomechanical forces and underlying genetic influences. Despite significant advances, questions remain regarding signaling dynamics and the natural time course of ductus closure, particularly in preterm neonates. This review highlights the contributions of early investigators and more recent clinician scientists to our understanding of the molecular and mechanical factors that mediate ductus patency and closure.
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http://dx.doi.org/10.1111/chd.12714 | DOI Listing |
Zhonghua Er Ke Za Zhi
January 2025
Heart Center, Women and Children's Hospital, Qingdao University, Qingdao266034, China.
J Vet Med Sci
January 2025
Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University.
A 24-day-old female Japanese Black calf presented a sudden paraplegia after a history of watery diarrhea. Antemortem magnetic resonance imaging confirmed the suspicion of thrombotic component in the abdominal aorta, without any spinal cord abnormality at the lumbar region. On necropsy, a massive thrombus occupied the lumen from the distal abdominal aorta to the bifurcation of the external iliac arteries.
View Article and Find Full Text PDFCureus
December 2024
Paediatrics, Maternity and Children Hospital, AlAhsa, SAU.
Background Maternal diabetes mellitus (DM) is a known risk factor for congenital heart diseases (CHDs), which are of significant concern to infants born to diabetic mothers. Compared to newborns born to non-diabetic mothers, infants born to diabetic mothers had a higher overall risk of developing congenital malformations. This association has a complex pathophysiology that includes genetic predispositions, metabolic abnormalities, and environmental factors during key stages of fetal development.
View Article and Find Full Text PDFBackground: Congenital cardiac defects are defined in cases with the deletion of the short arm of chromosome 5 and the duplication of the long arm of chromosome 4. Septal defects and patent ductus arteriosus are among the most common defects reported in the literature.
Case: We reported on a case with a complex congenital cardiac defect, dysmorphic facial features, cat-like cry, hypotonia, hyporeflexia, weak swallowing and sucking, limb anomalies, and bilateral undescended testicles.
Pediatr Cardiol
January 2025
Arkansas Children's Hospital, Arkansas Children's Hospital, 1 Children's Way, Slot 512-3, Little Rock, AR, 72202, USA.
Patent ductus arteriosus (PDA) stenting is a vital intervention for neonates with ductal-dependent blood flow, offering an attractive alternative to surgical shunt placement. Despite its benefits, the procedure poses risks such as ductal spasm, branch pulmonary artery compromise, and pseudoaneurysm formation. This report presents two complex neonatal cases with distinct outcomes.
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