Replacement of right coronary leaflet with bovine pericardium

Area of Science:

• Cardiovascular Surgery
• Biomaterials Science
• Congenital Heart Disease

Background:

• Aortic insufficiency is a serious complication of ventricular septal defects.
• Surgical repair options for aortic insufficiency in young patients are limited.
• Bovine pericardium has been explored as a biomaterial for cardiac valve repair.

Purpose of the Study:

• To evaluate the efficacy of using bovine pericardium to replace the right coronary leaflet in managing aortic insufficiency secondary to ventricular septal defects.
• To assess the short-term outcomes of this novel surgical approach in a young patient cohort.

Main Methods:

• Six patients (aged 15-34 years) with aortic insufficiency and ventricular septal defects underwent surgical repair.
• Ventricular septal defects were repaired prior to aortic valvuloplasty.
• The right coronary leaflet was replaced using bovine pericardium.

Main Results:

• No mortality was observed during the 5-6 month follow-up period.
• Three patients experienced complete relief of aortic insufficiency.
• Two patients had mild residual insufficiency, and one had minor insufficiency not requiring re-operation.

Conclusions:

• Right coronary leaflet replacement with bovine pericardium is a promising technique for young patients with aortic insufficiency due to ventricular septal defects.
• Short-term outcomes are encouraging, suggesting potential for aortic valve repair.
• Longer-term follow-up is necessary to determine the durability and functional longevity of bovine pericardium in the aortic position.