Methods: This is a multicenter retrospective cohort study of CS patients.
Results: The 696 patients with complete data were analyzed. Acute Coronary Syndrome (ACS) was the main cause of shock in 62% of patients. The main characteristics of patients are summarized in the table. The Cardshock risk score and the IABPII risk score were good in-hospital mortality predictors with similar Areas Under the ROC Curve in ACS patients (AUC: 0.742 vs 0.752, p=0.551). The discrimination performance dropped when the scores were applied to non-ACS patients (0.648 vs 0.619, respectively p=0.310). Calibration was acceptable for both scores (non-significant Hosmer-Lemeshow test).
Conclusions: The Cardshock and the IABPII shock risk scores were good predictors of in-hospital mortality. The lower ability of both scores to predict the short-term prognosis in non-ACS patients may be related to their marked heterogeneity.