• Heart Center, Guangzhou Women and Children's Medical Center, Guangzhou 510623, P. R. China;
CHENXin-xin, Email: zingerchen@163.com
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Objective To review our clinical experience of modified Fontan procedure for complex congenital heart disease (CHD) in children. Methods Clinical data of 62 children with complex CHD who underwent modified Fontan procedure in Guangzhou Women and Children's Medical Center from May 2008 to December 2013 were retrospectively analyzed. There were 41 male and 21 female patients with their median age of 4 years(range, 16 months to 14 years) and body weight of 12.5 (8.9-49.5) kg. Diagnosis included functional single ventricle in 45 patients, transposition of the great arteries (TGA) with ventricular septal defect (VSD) and left ventricular outflow tract obstruction (LVOTO) in 6 patients, corrected TGA with VSD and LVOTO in 6 patients, double outlet right ventricle with severe pulmonary stenosis in 4 patients, and right ventricular dysplasia in 1 patient. Previous procedure included pulmonary artery banding in 10 patients, unilateral bidirectional Glenn shunt in 37 patients, and bilateral bidirectional Glenn shunt in 8 patients. Seventeen patients received single-stage modified Fontan procedure, and 45 patients received two-stage modified Fontan procedure. Extracardiac conduit was used in 56 patients, and lateral tunnel was used in 6 patients. Concomitant procedures included fenestration in 41 patients, atrioventricular valvuloplasty in 6 patients, and pulmonary artery angioplasty in 3 patients. Results Two patients in both single-stage and two-stage groups died postoperatively with mortality of 11.8% and 4.4% respectively (P=0.299). Postoperative mechanical ventilation time, length of ICU stay, chestdrainage duration, postoperative hospital stay and morbidity were not statistically different between single-stage and two-stage group. Mean follow-up was 2.0 ±0.5 years (range, 3 months to 5 years). There were 2 late death in the singlestage group but no late death in the two-stage group. Growth of all survival children was good, and their exercise capacity significantly improved. Percutaneous oxygen saturation was higher than 90%. Echocardiography showed patent superior and inferior vena cava anastomosis without thrombosis, stenosis, atrioventricular valve regurgitation aggravation or pulmonary venous return obstruction. All survival patients were in New York Heart Association class Ⅰ or Ⅱ. None of the patients had arrhythmia, chronic effusion or protein losing enteropathy. Conclusion Early and mid-term results of modified Fontan procedure were satisfactory for children with complex CHD. For children with high risk factors, staged Fontan procedure can reduce surgical mortality.

Citation: ZOUMing-hui, CUIHu-jun, MALi, XIAYuan-sheng, YANGSheng-chun, CHENWei-dan, CUIYan-qin, CHENXin-xin. Modified Fontan Procedure for Complex Congenital Heart Diseases. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2015, 22(1): 39-43. doi: 10.7507/1007-4848.20150012 Copy

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