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Uncommon congenital anomalies of the aorta
Insights
Aortic coarctation can occur in unusual locations. Surgical intervention for descending aorta hypoplasia and abdominal aorta aplasia successfully resolved hypertension in two pediatric patients.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Vascular Biology
Background:
- Aortic coarctation, a congenital narrowing of the aorta, typically occurs in the thoracic region.
- Atypical presentations of aortic coarctation are rare but can pose diagnostic and therapeutic challenges.
- Understanding variations in aortic coarctation is crucial for effective management.
Observation:
- Case 1: A hypertensive girl presented with hypoplastic coarctation in the descending aorta.
- Case 2: A hypertensive girl had total aplasia of the distal abdominal aorta and right renal artery hypoplasia.
- Neither patient exhibited symptoms of lower limb ischemia.
Findings:
- Successful bypass grafting in Case 1 resolved hypertension.
- Right nephrectomy in Case 2 normalized blood pressure.
- The second case represents a rare instance of total abdominal aorta aplasia.
Implications:
- This study highlights the importance of considering atypical aortic coarctation locations.
- Surgical correction can effectively manage hypertension in these rare conditions.
- Further research into the embryology and surgical outcomes of atypical coarctations is warranted.
Abstract:
Two cases of atypical localization of an aortic coarctation are described. One patient was a hypertensive girl with a hypoplastic type of coarctation in the descending aorta. After insertion of a bypass graft the hypertension disappeared. The other patient was a hypertensive girl with a total aplasia of the distal abdominal aorta and a hypoplasia of a right renal artery. After right nephrectomy the blood pressure became normal. There were no symptoms or signs of ischemia of the legs. This is the second case, known in literature, with a total aplasia of the abdominal aorta. Some general considerations about atypical coarctations are made.