A Scoring System to Predict No-Reflow Phenomenon in Elective Percutaneous Coronary Intervention: The RECOVER Score

Abstract

The RECOVER score system aimed to stratify the risk of no-reflow phenomenon in patients undergoing elective percutaneous coronary intervention. A total of 3967 patients with 5340 lesions were used for the construction and validating of the risk model and score system. In multivariable analyses, 3 variables were independently associated with the risk of no-reflow phenomenon (model C-statistic=0.746 (95% confidence interval [CI]: 0.690 to 0.803) with good calibration). No-reflow phenomenon rates in both construction and validation cohort increased significantly across different risk groups. The RECOVER score can help identify patients at risk for phenomenon during percutaneous coronary intervention.