A new surgical technique for fibrosed interventricular septum.

We describe a new surgical technique for the treatment of fibrosed interventricular septum, with or without left ventricular aneurysm. It is designed for patients whose ventriculograms revealed important septal dysfunction. Eleven patients ranging from 37 to 66 years of age were operated upon between 1984 and 1988. The left ventricle was opened through the aneurysm or the anterior wall when only anterior septal fibrosis was present. In patients with large aneurysms, two purse-string sutures were placed on the inside surface of the intact ventricle, around its limits, for approximation. The fibrosed septum was thus excluded from the new ventricular cavity. A patch was placed between the fibrosed and the healthy septum, reaching to the ventricular wall, all around the transitional edge. Both, ventricular geometry and function were improved. All patients were asymptomatic after one year follow-up.