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Ann Thorac Surg 1988;45:273-277
© 1988 The Society of Thoracic Surgeons
From the Department of Surgery, Deborah Heart and Lung Center and Deborah Research Institute, Browns Mills, and the Department of Surgery, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ
* Address reprint requests to Dr. McGrath, Department of Surgery, Deborah Heart and Lung Center, Browns Mills, NJ 08015
The pulmonary valve homograft (PH) has been reported to have potential advantages over the aortic valve homograft, including a larger diameter, a thinner wall, and decreased intrinsic calcification. From January 16, 1986, to July 14, 1987, eight consecutive patients underwent repair of congenital cardiac anomalies using a cryopreserved PH. Patients ranged in age from 18 months to 32 years. Diagnoses included tetralogy of Fallot with pulmonary atresia (3 patients); tetralogy with absent pulmonary valve (1 patient); corrected transposition with pulmonic stenosis (1 patient); transposition of the great arteries, ventricular septal defect, and pulmonic stenosis (2 patients); and double-outlet right ventricle with pulmonic stenosis (1 patient). The PH was implanted orthotopically in the patient with absent pulmonary valve, and in the other 7 it was placed as a valved extracardiac conduit. Two of the tetralogy patients with severe bifurcational pulmonary stenosis and another with nonconfluent pulmonary arteries and origin of the left pulmonary artery from a patent ductus arteriosus had their repairs facilitated using the branching pulmonary arterial portion of the PH. There were no hospital or posthospital deaths. Postrepair right ventricular to left ventricular systolic pressure ratios were a mean of 0.35 at 18 hours postoperatively (range, 0.21–0.61). All patients were studied with Doppler and echocardiography after repair. The mean gradient across the PH was 9 mm Hg (range, 2–27 mm Hg), and no pulmonary valve incompetence was present. One patient (12.5%) required reoperation seven months after repair for conduit revision due to compression by the sternum and is now well. We conclude that the PH is a good conduit for ventricular outflow tract reconstruction, and the short-term results are satisfactory. The bifurcational portion of the donor pulmonary arteries has proved to be useful in the repair of associated pulmonary arterial anomalies. Because of its ready availability when procured in conjunction with the aortic homograft valve, and because of increased demand on our tissue bank for the use of aortic homograft valves, we have adopted the PH as our valve of choice for ventricular outflow tract reconstructive procedures.
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