Estimation of the risk of adverse long-term outcome is of paramount importance in the treatment of critical limb ischemia (CLI).
We evaluated the accuracy of two specific risk score systems, the Finnvasc score and the modified Prevent III (mPIII) score, in 1425 CLI patients who underwent unilateral, infrainguinal surgical (47.6%) or endovascular (52.4%) revascularization. The receiver operating characteristic (ROC) curve analysis was used to estimate the predictive value of these risk scoring methods.
The area under the ROC curve of Finnvasc score for prediction of 30-day amputation was 0.609 (95% confidence interval [CI] 0.549-0.677) and of mPIII score 0.533 (95% CI 0.457-0.609). The area under ROC curve of Finnvasc score for prediction of 30-day amputation-free survival was 0.622 (95% CI 0.573-0.671) and of mPIII score 0.588 (95% CI 0.533-0.642). The area under the ROC curve of Finnvasc score for prediction of 1-year amputation-free survival was 0.630 (95% CI 0.597-0.663, P