Recurrent subaortic membrane removal with homograft explant.

This 27-year-old female patient is undergoing a reoperation for a recurrent subaortic membrane causing significant left ventricular outflow obstruction. The re-sternotomy is uneventful and cardiopulmonary bypass is established. The left ventricular outflow tract is accessed through the previously implanted semi-calcified homograft aortic root.