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Combination of high-sensitivity C-reactive protein with logistic EuroSCORE improves risk stratification in patients undergoing TAVI.

EuroIntervention 2018 August 21
AIMS: The aim of this study was to assess the clinical value of biomarkers to identify TAVI patients at high risk for adverse outcome, to assess whether these biomarkers provide prognostic information beyond that of established clinical risk scores, and to assess whether a combined multi-marker strategy can improve clinical decision making.

METHODS AND RESULTS: In 683 TAVI patients, biomarkers reflecting various pathophysiologic systems were measured before TAVI. The primary endpoint was one-year all-cause mortality. Other outcomes were recorded according to the VARC-2 criteria. Thirty-day and one-year mortality was 2.9% and 12.0%, respectively. Non-survivors at one year had higher risk scores and increased median biomarker levels. Logistic EuroSCORE in combination with hs-CRP had the highest predictive value for 30-day (AUC 0.740 [95% CI: 0.667-0.812], p=0.1117) and one-year mortality (AUC 0.631 [95% CI: 0.569-0.693], p=0.0403). In multivariate regression analysis, logistic EuroSCORE in combination with hs-CRP showed the strongest association with one-year mortality. Combinations of increasing medians of logistic EuroSCORE results and hs-CRP levels allowed the stratification of the TAVI patients into subgroups with one-year mortality rates ranging from 6.6% up to 18.2%.

CONCLUSIONS: hs-CRP alongside the logistic EuroSCORE was an independent predictor of one-year all-cause mortality in TAVI patients. A combination of both might help to predict procedural risk and outcome better.

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