肺動脈弁位異種生体弁の遠隔成績

概要

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We reviewed the prognoses in 14 patients who underwent pulmonary valve replacement (PVR) with 7 Carpentier-Edwards (C-E) supra-annular, 2 Hancock II, and 1 C-E bovine pericardial xenografts. Their mean age at surgery was 39.9±17.7 years (ranging from 15 to 65 years). Seven of them had pulmonary regurgitation (PR) after total correction for tetralogy of Fallot, another had the double outlet right ventricle with combined single pulmonary artery and pulmonary stenosis (PS), another had PSR with pulmonary artery aneurysm and another had PR after repair for infective pulmonary valve. We successfully followed up all of the patients excluding 2 operative deaths due to LOS and hemorrhage. The survivors were followed up for a mean period of 5 years 3 months. One of them was reoperated on because the patient had endocarditis of the bioprosthesis at 7 months after surgery. No bioprosthetic dysfunction on the Doppler echocardiographic scan has been observed during a maximum of 11.4-year follow-up period except in one who underwent PVR at age 15.These findings indicate that PVR using bioprosthesis will show favorable durability in adult patients and PVR for the patients who have congestive heart failure due to sever pulmonary insufficiency after corrective surgery will provide clinical improvement at the follow-up periods.
一般社団法人日本人工臓器学会の論文
1997-02-15