AIMS: While heart failure (HF) symptoms are associated with adverse prognosis after myocardial infarction (MI), they are not routinely used for patients' stratification. The primary objective of this study was to develop and validate a score to predict mortality risk after MI, combining remotely recorded HF symptoms and clinical risk factors, and to compare it against the guideline-recommended Global Registry of Acute Coronary Events (GRACE) score. METHODS AND RESULTS: A cohort study design using prospectively collected data from consecutive patients hospitalized for MI at a large tertiary heart centre between June 2017 and September 2022 was used. Data from 1135 patients (aged 64 ± 12 years, 26.7% women), were split into derivation (70%) and validation cohort (30%). Components of the 23-item Kansas City Cardiomyopathy Questionnaire and clinical variables were used as possible predictors. The best model included the following variables: age, HF history, admission creatinine and heart rate, ejection fraction at hospital discharge, and HF symptoms 1 month after discharge including walking impairment, leg swelling, and change in HF symptoms. Based on these variables, the PragueMi score was developed. In the validation cohort, the PragueMi score showed superior discrimination to the GRACE score for 6 months [the area under the receiver operating curve (AUC) 90.1, 95% confidence interval (CI) 81.8-98.4 vs. 77.4, 95% CI 62.2-92.5, P = 0.04) and 1-year risk prediction (AUC 89.7, 95% CI 83.5-96.0 vs. 76.2, 95% CI 64.7-87.7, P = 0.004). CONCLUSION: The PragueMi score combining HF symptoms and clinical variables performs better than the currently recommended GRACE score.

The prognosis of patients after myocardial infarction is heterogeneous. Thus, risk stratification is needed to identify and intervene patients at increased risk. While heart failure (HF) symptoms are associated with adverse prognosis, they are not used for patients’ stratification. We have developed and internally validated the PragueMi score, which integrates clinical risk factors at the time of hospitalization and HF symptoms determined remotely by a questionnaire 1 month after hospital discharge. PragueMi score was able to better stratify patients’ risk as compared with the currently recommended Global Registry of Acute Coronary Events score.

1st Medical School Charles University Katerinska 1660 32 Prague 120 00 Czech Republic

3rd Medical School Charles University Prague Czech Republic

Department of Cardiology Institute for Clinical and Experimental Medicine Prague Czech Republic

Department of Preventive Cardiology Institute for Clinical and Experimental Medicine Videnska 1958 9 Prague 140 21 Czech Republic

Division of Cardiovascular Medicine University of Utah School of Medicine Salt Lake City UT USA

Experimental Medicine Centre Institute for Clinical and Experimental Medicine Prague Czech Republic

Medical and Dentistry School Palacký University Olomouc Czech Republic

Eur J Prev Cardiol. 2024 Oct 10;31(14):1721-1723. doi: 10.1093/eurjpc/zwae127. PubMed

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