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  • Title: Increased cardiac troponin T levels are related to inflammatory markers and various indices of renal function in chronic renal disease patients.
    Author: Sezer S, Karakan S, Ozdemir N.
    Journal: Ren Fail; 2012; 34(4):454-9. PubMed ID: 22320145.
    Abstract:
    BACKGROUND/OBJECTIVES: Cardiovascular disease begins early in the course of chronic kidney disease (CKD), and the glomerular filtration rate (GFR) is an independent risk factor for it. There is little information on cardiac troponin concentrations in patients with CKD who have not commenced dialysis. Factors associated with this deleterious process are not completely understood, and we aimed to determine associated laboratory abnormalities of increased cardiac troponin T (cTnT) in patients with CKD. METHODS: In this study, 104 patients (65 males and 39 females with mean age of 65 ± 15 years) were recruited. A detailed clinical history was recorded and routine biochemical variables and cTnT levels were measured. GFR was estimated (44.62 ± 14.38 mL/min/1.73 m(2)) using the modification of diet in renal disease study formula. RESULTS: cTnT is correlated with blood urea (r = 0.262, p < 0.05), uric acid (r = 0.399, p < 0.001), blood phosphorus (r = 0.550, p < 0.001), triglyceride (r = 0.329, p = 0.011), C-reactive protein (CRP; r = 0.768, p < 0.001), renal resistive index (RRI; r = 0.412, p = 0.017), and GFR (r = -0.755, p = 0.011). On stepwise multiple regression analysis, increased CRP (≥12 mg/L), uric acid (≥5 mg/L), and RRI (≥0.70) were independent variables for increased cTnT status (r(2) = 0.053, p < 0.05). CONCLUSION: Increased cTnT not only shows ongoing inflammation but also is a sensitive marker of functioning renal mass. It is strongly correlated with factors influencing the decline in renal function; thus, it can be used as a renal risk parameter.
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