Search results
Results from the WOW.Com Content Network
Right-sided aortic arch is a rare anatomical variant in which the aortic arch is on the right side rather than on the left. During normal embryonic development, the aortic arch is formed by the left fourth aortic arch and the left dorsal aorta. In people with a right-sided aortic arch, instead the right dorsal aorta persists and the distal left ...
In a stage 1 Norwood procedure for hypoplastic right heart, the main pulmonary artery is separated from the left and right portions of the pulmonary artery and joined with the upper portion of the aorta. The proximal pulmonary artery is connected to the aortic arch, while the narrowed segment of the pulmonary trunk is repaired.
A double aortic arch; occurs with the development of an abnormal right aortic arch in addition to the left aortic arch, forming a vascular ring around the trachea and esophagus, which usually causes difficulty breathing and swallowing. Occasionally, the entire right dorsal aorta abnormally persists and the left dorsal aorta regresses in which ...
right-sided aortic arch, in 25%; coronary artery anomalies, in 10%; a patent foramen ovale or atrial septal defect, in which case the syndrome is sometimes called a pentalogy of Fallot [46] an atrioventricular septal defect; partially or totally anomalous pulmonary venous return
Patent ductus arteriosus (PDA) is a medical condition in which the ductus arteriosus fails to close after birth: this allows a portion of oxygenated blood from the left heart to flow back to the lungs from the aorta, which has a higher blood pressure, to the pulmonary artery, which has a lower blood pressure.
Without treatment, it is a highly life-threatening condition, so prognosis is poor. [35] [34] If surgery isn't performed in severe cases, the child can (and will) die, since the phenotype of pulmonary atresia is not compatible with life due to the pulmonary valve atresia resulting in reduced blood oxygenation. [9] [62] [63]
This disorder was first discovered in 1968, [4] when a mother and 3 of her children (4 cases) were described with the symptoms mentioned above. In this case, additional features were found in a majority of the patients; three of the patients had esophageal indentation and left ligamentum arteriosum, two of the patients, a still-born baby, had anencephaly.
Isolated double aortic arch without associated intracardiac defects is a vascular anomaly that can be corrected without the support of cardiopulmonary bypass. [citation needed] For surgical division of the narrower left aortic arch in a typical double arch patient with a dominant right arch, the patient is placed on the right side.