Brom Aortoplasty for Supravalvular Aortic Stenosis

Area of Science:

• Pediatric Cardiac Surgery
• Congenital Heart Disease
• Aortic Valve Disease

Background:

• Supravalvular aortic stenosis (SVAS) presents challenges in optimal surgical management for pediatric patients.
• The Brom three-patch aortoplasty technique has been utilized since 1997 for SVAS treatment.
• Computed tomography (CT) is preferred over cardiac catheterization for preoperative evaluation due to reduced anesthesia-related morbidity.

Purpose of the Study:

• To present the intermediate-term results of the Brom three-patch aortoplasty strategy for treating pediatric SVAS.
• To evaluate the efficacy and safety of this surgical approach in restoring aortic root geometry and relieving stenosis.
• To assess the role of CT imaging in the preoperative assessment of SVAS patients.

Main Methods:

• Twenty consecutive pediatric patients with SVAS underwent Brom three-patch aortoplasty.
• Preoperative evaluation primarily utilized advanced medical imaging, including CT and MRI, avoiding cardiac catheterization.
• Surgical details included cardiopulmonary bypass time, cross-clamp time, and simultaneous pulmonary artery stenosis patching when indicated.

Main Results:

• No operative or late mortality was observed in the study cohort.
• Mean follow-up was 6 years, with no reoperations on the aortic root reported.
• Excellent intermediate-term outcomes included restoration of aortic root geometry, relief of coronary ostial stenosis, and no recurrent SVAS or coronary events.

Conclusions:

• Brom aortoplasty effectively restores normal aortic root geometry and relieves coronary ostial stenosis, crucial for preventing myocardial ischemia.
• CT imaging is a valuable diagnostic tool for preoperative SVAS evaluation.
• Intermediate-term outcomes of Brom aortoplasty for SVAS are excellent, demonstrating no recurrent disease or adverse coronary events.