Congenital heart defect requiring patency of ductus arteriosus

A congenital heart defect requiring patency of the ductus arteriosus—often termed a ductal-dependent congenital heart defect—refers to a critical cardiovascular malformation in neonates where post-birth survival relies on maintaining blood flow through the open fetal arterial channel Affecting the cardiovascular system in the early neonatal period, these lesions encompass defects causing severe obstruction to systemic circulation, such as hypoplastic left heart syndrome or critical aortic coarct...

A congenital heart defect requiring patency of the ductus arteriosus—often termed a ductal-dependent congenital heart defect—refers to a critical cardiovascular malformation in neonates where post-birth survival relies on maintaining blood flow through the open fetal arterial channel Without a patent ductus arteriosus to sustain pulmonary perfusion, systemic cardiac output, or vascular mixing, normal physiological ductal closure soon after birth leads to rapid clinical deterioration marked by pr...

Affecting the cardiovascular system in the early neonatal period, these lesions encompass defects causing severe obstruction to systemic circulation, such as hypoplastic left heart syndrome or critical aortic coarctation; profound pulmonary blood flow restriction, such as pulmonary atresia or severe tetralogy of Fallot; or parallel circulation requiring mixing, such as transposition of the great arteries

Affecting the cardiovascular system in the early neonatal period, these lesions encompass defects causing severe obstruction to systemic circulation, such as hypoplastic left heart syndrome or critical aortic coarctation; profound pulmonary blood flow restriction, such as pulmonary atresia or severe tetralogy of Fallot; or parallel circulation requiring mixing, such as transposition of the great arteries

Without a patent ductus arteriosus to sustain pulmonary perfusion, systemic cardiac output, or vascular mixing, normal physiological ductal closure soon after birth leads to rapid clinical deterioration marked by profound hypoxemia, metabolic acidosis, cardiogenic shock, and circulatory collapse