Table 3

 Factors associated with impaired left ventricular contractility

VariableContractilityp Value
Impaired (n = 19)Normal (n = 12)
F, female; M, male. *Significant
Age (years)9.0 (2.2)9.9 (1.6)0.22
Sex F/M6/131/110.20
Body mass index (kg/m2)17.4 (3.0)16.5 (1.8)0.35
Age at operation (days)16.3 (4.4)12.6 (4.7)0.01*
Circulatory arrest time (min)6.6 (5.2)4.0 (1.3)0.045*
Cardiopulmonary bypass time (min)133.3 (18.2)119.6 (34.6)0.01*
Aortic cross clamp time (min)91.7 (19.2)86.9 (31.0)0.52
Unusual coronary artery pattern6 (32%)0 (0%)0.059