Surgical treatment of total anomalous pulmonary venous connection under 6 months of age
2016
To discuss the experience of surgical treatment of total anomalous pulmonary venous connection (TAPVC) in infants.The clinic data of 84 cases with TAPVC under 6 months of age underwent surgical treatment at Department of Cardiac Surgery, Guangzhou Women and Children's Medical Center from January 2012 to October 2015 were analyzed retrospectively. There were 58 male and 26 female patients. The patients were aged 1 days to 6 months with a mean of (2.4±2.2) months at surgery, including 22 newborns. Body weight was 1.8 to 6.8 kg with a mean of (4.3±1.2) kg. There were 24 cases of intracardiac type, 46 cases of supracardiac type, 10 cases of infracardiac type and 4 cases of mixed type. There were 26 cases received emergent operation. There were 14 cases used Sutureless technique in operations and 46 cases used conventional methods in the no-intracardiac type cases, and 2 cases enlarged the anastomsis with autologous pericardium. According to the condition, corrective surgeries of other anomalies were performed in the meantime, including 3 Warden operations (right side), 3 bilateral bidirectional Gleen operation, 2 correction of unroofed coronary sinus syndrome, 1 coarctation of aorta correction with deep hypothermic circulation arrest, and 1 repair of ventricular septal defect.The ratio of newborn was higher in Sutureless technique group than in conventional methods group (7/14 vs. 32.6%, χ(2)=4.927, P=0.043), and mean age was less ((1.8±0.4) months vs. (2.4±2.2) months, F=4.257, P=0.042), but there were no difference in body weight, cardiopulmonary bypass time and aorta clamped time between the two groups. Followed up for 1 to 46 months, 10 cases (11.9%) died overall and the mortality of intracardiac (3/10) and mixed (2/4) type were much higher than in intracardiac (4.2%) and supracardiac (13.0%) type. The mortality were no difference between newborn and infants, or whether emergent operation, or Sutureless technique and conventional methods. The maximal pulmonary venous flow velocity was abnormal speed-up >1.8 m/s at 1 week and 1 to 3 months post-operation mostly.The mortality of TAPVC was differed by different types. Intrinsic pulmonary vein stenosis maybe the main cause of mortality. The high quality of anastomsis could reduce the operative mortality.
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