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Ann Thorac Surg 1977;24:237-240
© 1977 The Society of Thoracic Surgeons

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Articles

Aneurysm of Pericardial Right Ventricular Outflow Tract Patches

From the Division of Surgery of the Texas Heart Institute, St. Luke's Episcopal and Texas Children's Hospitals, Houston, TX

Accepted for publication February 18, 1977.

^* Address reprint requests to Dr. Cooley, Texas Heart Institute, PO Box 20345, Houston, TX 77025

Among 1,022 patients who underwent repair of tetralogy of Fallot, 252 received a pericardial patch of the right ventricular outflow tract; of these, 10 subsequently developed an aneurysm of the right ventricular outflow tract. Cardiac catheterization and angiography revealed moderate pulmonary insufficiency in all patients, a residual pressure gradient in the right ventricular outflow tract in 7, and a residual ventricular septal defect in 2 patients. Reoperation was indicated in 8 patients because of progressive distention of the aneurysm, residual infundibular or pulmonary artery stenosis, and recurrent ventricular septal defect. Reconstruction of the right ventricular outflow tract was accomplished by resection of the aneurysm and insertion of a woven Dacron patch in 5 patients, primary suture of the pulmonary artery in 2, and implantation of a woven Dacron conduit containing a Björk-Shiley cardiac valve prosthesis in 1 patient. There were no early or late deaths. When reconstruction of the right ventricular outflow tract is necessary, we recommend a woven Dacron patch because pericardium may form an aneurysm.

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