应用无内膜接触缝合技术治疗心上型全肺静脉异位引流

目的 探讨无内膜接触缝合技术应用于初次心上型全肺静脉异位引流(TAPVC)的外科矫治,以顶防术后肺静脉梗阻发生的可行性.方法 自2007年12月至2008年12月,25例TAPVC病儿接受体外循环下畸形矫治手术,其中心上型TAPVC 9例手术中5例采用无内膜接触缝合技术.男2例,女3例;年龄为2个月～13岁;体重为4.5～21.0 kg,平均(7.9±6.4)kg.手术选择心包斜窦入路,沿共同静脉长轴横向剖开,并将此切口上延至垂直静脉的心包返折处,使用7-0 PDS缝线将左心房后壁切口与共同静脉切口周边的心包组织吻合,通过"控制性出血技术"将肺静脉回流的血液引流进入左心系统;部分结扎垂直静脉.结果 5例采用无内膜接触缝合技术进行外科矫治的病儿全部生存.1例病儿因术前并发双侧肺实变,术后机械辅助呼吸超过7天其他病儿均顺利康复,无并发症.术后行心脏超声随访,随访1～13个月,中位数为7个月,常规随访时间点分别设在出院前、术后3个月、半年及1年.至目前为止,5例病儿肺静脉回流通畅,血流速度0.65～0.85 m/s.结论 在治疗心上型全肺静脉异位引流方面,无内膜接触缝合是一项切实可行、易于操作的外科技术,可以预防术后早期肺静脉梗阻的发生;但其大宗病例的远期疗效,尚有待进一步的研究和探索.

Surgical correction of supracardiac total anomalous pulmonary venous connection using sutureless technique

Objective Retrospectively analyze surgical correction supracardiac total anomalous pulmonary venous con-nection (TAPVC) using sutureless technique to prevent post-repair pulmonary vein stenosis. Methods Between December 2007 and December 2008, 25 children cases of total anomalous pulmonary venous connection underwent primary surgical cor-rection. The anatomic types of TAPVC were supra cardiac in nine patients, inha cardiac in one, mixed in 3 and intra cardiac in 12. Five of nine supra cardiac TAPVC underwent correction using sutureless technique. There were 2 male and 3 female. Their age at surgeries ranged from 2 months to 13 years, and the body weight were from 4.5 kg to 2.1 kg with an average of (7.9±6.4) kg. After median sternotomy and opening the pericardium, the heart was arrested by delivering cold crystal ear-dioplegia. The heart was then positioned toward the patient' s right and under the right henri sternum. A generous incision across the posterior wall of the left atrium and one on the common pulmonary vein was made. The latter was extended upwards to the midpoint of the vertical vein. The left atrium was subsequently connected to the pulmonary venous confluence by suturing the edge of the atrium to the posterior mediastinal pericardium that surrounding the common pulmonary vein and the vertical vein with 7-0 PDS. The vertical vein was partially ligated after conclusion of CPB, leaving a diameter of 5mm shunt. Routine follow-up with echocardiogram were at diacharging, 3 months, 6 months and 1 year after surgery. Results All 5 cases survived uneventfully excopt 1 baby on ventilation over 7 days after surgery, who had bilateral lung consolidation before the operation. Echocardiogram showed satisfactory results with maxium velocity acrossing the anastomosis of 0.65 -0.85 m/s. Conclusion Sutureleas technique can avoid trauma to the pulmonary venous endothelium and minimize the tension of anastomasis. It may play an important role to prevent post-repair pulmonary vein stenosis. More patients with long-term follow-up are necessary to draw a definite conclusion of this technique.