Validation of Cardiac Surgery Score (CASUS) in Postoperative Cardiac Patients

Area of Science:

• Cardiology
• Critical Care Medicine
• Health Services Research

Background:

• Cardiac surgery patients require specialized postoperative scoring systems.
• Existing general ICU scores (APACHE II, ICNARC) and preoperative scores (EuroSCORE) have limitations for postoperative cardiac care.
• The Cardiac Surgery Score (CASUS) was developed to address this gap.

Purpose of the Study:

• To validate the Cardiac Surgery Score (CASUS) against established preoperative (Logistic EuroSCORE) and postoperative (APACHE II, ICNARC) scoring systems.
• To assess the predictive accuracy of CASUS for mortality and complications in cardiac surgery patients.

Main Methods:

• Prospective data analysis of cardiac surgery patients from January 2016 to September 2018.
• Calculation and comparison of CASUS, Logistic EuroSCORE, APACHE II, and ICNARC scores.
• Evaluation of predictive performance using the area under the receiver operating characteristic curve.

Main Results:

• CASUS demonstrated the highest accuracy in predicting patient mortality.
• ICNARC score was the most accurate predictor of renal and pulmonary complications, with CASUS showing comparable accuracy.
• The predictive performance order for mortality was CASUS > ICNARC > Logistic EuroSCORE > APACHE II.

Conclusions:

• CASUS is a valuable and accurate scoring system for patients following cardiac surgery.
• CASUS and ICNARC scores offer comparable accuracy in predicting mortality and key complications (renal, pulmonary).
• The findings support the routine use of CASUS in postoperative cardiac surgery care.