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目的 比较 2 0例小儿心脏瓣膜置换术前后心功能变化。方法 全部病儿均施行单个瓣膜置换 ,同时修补并存的心脏畸形。采用自身对照的研究方法 ,分析术前、术后一周的 EDD(左室舒张未直径 )、SV(每搏输出量 )、EF(射血分数 )、 FS (短轴缩短率 )及 CTR (X线胸片测得心胸比值 )等指标。结果 全组病例术后心功能均有明显改善(P<0 .0 5 )。结论 严格选择手术适应症 ,加强围手术期处理、手术方法、选择合适的瓣膜及术后正确的抗凝治疗是儿童瓣膜置换的关键
Objective To compare the changes of cardiac function in 20 pediatric heart valve replacement patients. Methods All sick children were performed a single valve replacement, simultaneous repair of cardiac malformations. The self-control study methods were used to analyze preoperative and postoperative EDD (left ventricular diastolic diameter), SV (stroke volume), EF (ejection fraction), FS (short axis shortening) and CTR Chest line measured heart ratio) and other indicators. Results All patients’ cardiac function improved significantly (P <0.05). Conclusion Strict selection of surgical indications, to strengthen the perioperative management, surgical methods, select the appropriate valve and the correct anticoagulant therapy is the key to valve replacement in children