Evaluation of Aristotle Comprehensive Complexity Score for Early Prognosis in Patients After Arterial Switch Operation

Objective:Aristotle comprehensive complexity(ACC)score is a risk stratification model to assess the surgical technical complexity in patients with congenital heart disease which can predict the early mortality and morbidity for certain procedures.Our work intended to explore ACC score for early prognosis in patients after arterial switch operation(ASO). Methods: We retrospectively studied 171 pediatric patients who underwent ASO in our hospital from 2008 to 2010,we calculated their ACC score and studied the effect of ACC score for the mortality and fast recovery rate after ASO,and performed linear regression analysis to calculate the correlations between ACC score and the mechanical ventilation time,length of stay in ICU. Results: The mean ACC Score was 12.44±2.33(10~21.5,at the median of 13).Overall mortality was 7/171.There were 6 patients with ACC score 20 and 5 of them died.23 patients with ACC score13 who had fast recovery after ASO.There was significant difference of ACC score between the patients with and without fast recovery,P=0.006.The ACC score was positively related to mechanical ventilation time(correlation coefficient 8.03,R2=0.921,P=0.000). Conclusion:ACC score is positively correlated to early death and the mechanical ventilation time in pediatric patients with ASO.The patients with ACC score20 could have higher mortality,great effort should be made to decrease the non-surgically dependent risk factors.