[Surgical repair of post-infarction ventricular septal defects--reconstruction with pericardial patch].
Despite improvements in the pre- and postoperative management of patients with post-infarction ventricular septal defects, the results after surgery have been variable. This is in part due to advanced patient age, multi-vessel coronary disease. In addition, resection of the infarcted ventricular septum results in significant compromise in left ventricular function. Since January of 1993, we have used a new technique for the reconstruction of the left ventricle using a single pericardial patch. In this method, which was introduced by Komeda and David in 1990, a single patch is sutured to the interventricular septum and the lateral ventricular wall, excluding the infarcted muscle from the left ventricular cavity. This method was used in the treatment of four patients. There was no bleeding along the suture lines at operation, all of the patients survived. Postoperatively, all four were functional New York Heart Association Class 1. One patient underwent re-operation on the 12th day using the same technique because of a residual shunt. Another two patients had small residual shunts, which spontaneously resolved in 2 to 7 months. Left ventricular function evaluated 1 month after the operation utilizing cardiac catheterization revealed a mean stroke volume index of 40 (range: 32-45 ml/m2, and a mean left ventricular ejection fraction of 71 (range: 70-73%). An excellent functional outcome has thus been achieved with the reconstruction of post-infarction ventricular septal defects using a single pericardial patch.