• Eur. J. Clin. Invest. · Nov 2022

    Observational Study

    CHA2 DS2 -VASc and R2 CHA2 DS2 -VASc scores predict mortality in high cardiovascular risk population.

    • Maria Maddalena D'Errico, Pamela Piscitelli, Antonio Mirijello, Mariateresa Santoliquido, Mauro Salvatori, Carlo Vigna, Gianluigi Vendemiale, Olga Lamacchia, Andrea Fontana, Massimiliano Copetti, Roberto Pontremoli, and Salvatore A De Cosmo.
    • Unit of Internal Medicine, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.
    • Eur. J. Clin. Invest. 2022 Nov 1; 52 (11): e13830.

    BackgroundThe CHA2 DS2 -VASc score, widely used to estimate cardioembolic risk in patients with atrial fibrillation (AF), appears to be useful also in predicting vascular adverse events and death in different sets of patients without AF. The R2 CHA2 DS2 -VASc score, which includes renal impairment, allows a better prediction of death and thromboembolism in patients without AF. The aims of our study were to assess, in a large sample of patients at high cardiovascular (CV) risk, (i) the correlation between CHA2 DS2 -VASc and R2 CHA2 DS2 -VASc with all-cause mortality, and (ii) to compare the performances of CHA2 DS2 -VASc and R2 CHA2 DS2 -VASc in predicting all-cause mortality.MethodsIn this single-centre prospective observational study, conducted at the Research Hospital 'Casa Sollievo della Sofferenza' between June 2016 and December 2018, 1017 CV patients at high risk of undergoing coronary angiography were enrolled.ResultsCHA₂DS₂-VASc and R2 CHA2 DS2 -VASc scores significantly associated with all-cause mortality. For each one-point increase in CHA2 DS2 -VASc or R2 CHA2 DS2 -VASc scores, mortality increased by almost 1.5-fold. The R2 CHA2 DS2 -VASc score (C-statistic = 0.71; 95% CI = 0.65-76) outperformed the CHA2 DS2 -VASc score (C-statistic = 0.66; 95% CI = 0.61-0.71) in predicting 4-year mortality (delta C-statistic = 0.05; 95% CI = 0.02-0.07). The better predictive ability of the R-CHA2 DS2 -VASc score was also demonstrated by an IDI = 0.027 (95% CI = 0.021-0.034, p < .00001) and a relative IDI = 62.8% (95% CI = 47.9%-81.3%, p < .00001). The R2 CHA2 DS2 -VASc score correctly reclassified the patients with a NRI = 0.715 (95% = 0.544-0.940, p < .00001).ConclusionsThe CHA₂DS₂-VASc and R2 CHA2 DS2 -VASc scores are useful predictors of all-cause mortality in subjects at high CV risk, with the R2 CHA2 DS2 -VASc score being the best performer.© 2022 Stichting European Society for Clinical Investigation Journal Foundation. Published by John Wiley & Sons Ltd.

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