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收治永存动脉干7例,其中5例使用了同种异体带瓣管道(CVH),4例主动脉带瓣管道,1例肺动脉带瓣管道。CVH 材料经抗生素消毒,防冻超低温(-154℃)保存,保存期<1年。无住院死亡,CVH 组织培养以及术后血培养均阴性,术后肺动脉高压明显改善,发生心律失常1例。平均随访时间2.2年,1例术后2年 CVH管壁出现钙化,瓣膜有增厚,但无管道狭窄。5例均无血栓形成。心功能明显改善,无再手术病例。结果表明:CVH 具有使用方便、瓣膜性能好、耐用、无需抗凝等特点,很适用于小儿外科手术。永存动脉干应用 CVH 重建右室流出道,其死亡率和再手术率低。
Seven cases of permanent arterial occlusion were treated, including 5 cases of allograft valve (CVH), 4 cases of aortic valve and 1 case of pulmonary artery valve. CVH material by antibiotic disinfection, antifreeze cryogenic (-154 ℃) preservation, shelf life of <1 year. No hospital deaths, CVH tissue culture and postoperative blood culture were negative, postoperative pulmonary hypertension was significantly improved, arrhythmia occurred in 1 case. The mean follow-up time was 2.2 years. One case had calcification of the wall of CVH 2 years after operation, and the valve had thickened but no ductal stricture. No thrombosis occurred in 5 cases. Heart function improved significantly, no further surgery cases. The results showed that: CVH has the advantages of easy to use, good valve performance, durability, without anticoagulation, etc. It is suitable for pediatric surgery. Permanent artery dry CVH reconstruction of right ventricular outflow tract, its mortality and reoperation rate is low.