[The double-chambered right ventricle. Report of 8 cases]

From April 1985 to 1988, of 264 patients under went repair of congenital heart defect, 8 patients with double-chambered right ventricle (DCRV) were successfully managed. All patients survived well. The catheterization and angiocardiography in the right ventricle(RV) play an important role in the preoperative diagnosis. To avoid missing and incorrect management the surgeon must keep the possibility of DCRV in mind during repair of a VSD. A dimple in the anterior wall of the RV during systole represents the underlying attachment of the aberrant muscular bundle. The right ventricular outflow tract must be explored when through a right atriotomy to repair the VSD and the tricuspid valve must be examined when through a right ventriculotomy.