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  • Title: Prognostic implications of statin intolerance in stable coronary artery disease patients with different levels of high-sensitive troponin.
    Author: Hai JJ, Wong YK, Wong CK, Un KC, Chan PH, Siu CW, Yiu KH, Lau CP, Tse HF.
    Journal: BMC Cardiovasc Disord; 2019 Jul 15; 19(1):168. PubMed ID: 31307391.
    Abstract:
    BACKGROUND: The prognostic implication of statin in tolerance (SI) in those with stable CAD remains unclear. We hypothesized that SI is of higher prognostic significance in stable CAD patients with elevated high-sensitive cardiac troponin I (hs-cTnI). METHODS: A total of 952 stable CAD patients from the prospective Hong Kong CAD study who had complete clinical data, biomarker measurements and who were prescribed statin therapy were studied. RESULTS: We identified 13 (1.4%) and 125 (13.1%) patients with complete and partial SI, respectively. At baseline, patients with SI were more likely to have diabetes mellitus and a higher hs-cTnI level, but no difference in LDL-C level compared with those without SI. After 51 months of follow-up, patients with SI had a higher mean LDL-C level than those without SI. A total of 148 (15.5%) patients developed major adverse cardiovascular events (MACEs). Both SI (HR 1.52, 95% CI 1.06-2.19, P = 0.02) and elevated hs-cTnI (HR 3.18, 95% CI 2.07-4.89, P < 0.01) were independent predictors of a MACE in patients with stable CAD. When stratified by hs-cTnI level, SI independently predicted MACE-free survival only in those with elevated hs-cTnI (HR 1.51, 95% CI 1.01-2.24, P = 0.04). CONCLUSIONS: SI independently predicted MACE in patients with stable CAD and high hs-cTnI, but not in those with low hs-cTnI. Hs-cTnI may be used to stratify stable CAD patients who have SI for intensive lipid-lowering therapy using non-statin agents.
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