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Progressive diffuse aortic stenosis after localized supravalvular aortic stenosis repair.
Yoshimichi Kosaka1, Shuichi Hoshino, Takashi Azuma
1Department of Cardiovascular Surgery, Toyama Prefectural Central Hospital, Toyama, Japan.
The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyobu Geka Gakkai Zasshi
|January 14, 2004
Summary
This case highlights progressive diffuse stenosis of the aortic arch in a child with supravalvular aortic stenosis. Reoperation was necessary due to the worsening condition of the distal aorta.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Medical Case Reports
Background:
- The patient, a 6-year-old boy, had a history of localized supravalvular aortic stenosis treated with patch augmentation at age 2.
- Pre-operative assessment revealed hypoplastic aortic arch and descending aorta (60-73% of aortic annulus diameter) without a pressure gradient.
Observation:
- Four years post-initial surgery, progressive diffuse stenosis of the aortic arch was observed, with a diameter reduced to 42% of the aortic annulus.
- A subsequent reoperation involved patch augmentation of the aortic arch.
Findings:
- Following reoperation, a new pressure gradient of 40 mmHg was detected distal to the repair site.
- This indicates a recurrence and progression of aortic arch stenosis despite surgical intervention.
Implications:
- This rare case underscores the challenges in managing diffuse supravalvular aortic stenosis, particularly its progression in the distal aorta.
- It emphasizes the need for careful long-term monitoring and potentially novel surgical strategies for complex aortic arch anomalies in pediatric patients.