The combination of Euroscore II with a new variable "Nongraftable coronary artery lesions" improves the discriminating power of the test in surgical patients with postinfarction ventricular septal defect and ventricular aneurysm.

Euroscore II has adequate discriminating power and good calibration in predicting in-hospital mortality of surgical patients with PIVSDs and VAs. The combination of Euroscore II with a new variable "Nongraftable CALs" significantly improves the performance of the model.