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  • Title: Pericardial patch repair of the left atrioventricular valve in atrioventricular septal defect: long-term changes in the patch.
    Author: Luk A, Ahn E, Soor GS, Williams WG, Mezody M, Butany J.
    Journal: Cardiovasc Pathol; 2009; 18(2):119-22. PubMed ID: 18402827.
    Abstract:
    A 31-year-old woman with partial atrioventricular septal defect underwent left atrioventricular valve (LAVV) replacement. Her initial repair was at 8 years of age. At 23 years of age, she underwent reoperation due to a combination of severe left ventricular outlet obstruction and moderate LAVV regurgitation. At that reoperation, she had a Dacron patch enlargement of the infundibular septum and repair of her LAVV with a xenograft (bovine) pericardial patch sutured into the superior bridging leaflet. LAVV replacement was required 8 years later because of valve insufficiency. There was a perforation in the patch with fibrosis, thickening due to pannus, and calcification of the pericardial tissue and the leaflet tissue, leading to stiffening of the tissue.
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