Pub Date : 1998-07-25DOI: 10.3760/CMA.J.ISSN.1001-4497.1998.04.009
Haibo Zhang, Zhaohang Su
Objective To reconstruct the right ventricular outflow tract using cryopreserved valved homograft conduit(VHC) and to review the curative effects and remaining problems. Methods Ninety-five patients with complex congenital heart disease were treated from Nov.1989 to Feb.2000.The diagnosis included: transposition of the great artery, double outlet right ventricle, tetralogy of Fallot, persistent truncus arteriosus and aortic stenosis. The corrective operations were performed in 90 cases, and palliative operations in 5 cases. Results The hospital mortality was 13.7%, and 68 cases were followed up from 1 month to 8 years postoperatively with 25 cases showed calcification in VHC by chest X-ray, but only 5 cases had mild to moderate pressure gradient across the conduit. Conclusion VHC can be used to treat almost all kind of congenital heart diseases; aortic VHCs are liable to calcificate than pulmonic VHCs; to keep the VHC in good condition, programed cooling, cryopreserving and two-stage melting were important and should always be concerned with VHC infection.
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