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  • Title: Cardiac troponin-T in pre-end stage kidney disease.
    Author: Kiatchoosakun S, Sahasthas D, Wongvipaporn C, Pongskul C.
    Journal: J Med Assoc Thai; 2008 Dec; 91(12):1806-11. PubMed ID: 19133513.
    Abstract:
    BACKGROUND: Cardiac troponin T level (cTnT) is commonly increased in end stage chronic kidney disease (CKD) in the absence of acute myocardial infarction. There are few data available on serum cTnT concentration in patients with pre-end stage CKD. OBJECTIVE: To evaluate the correlation of cTnT level and severity of kidney disease in patients with CKD stage 3 and 4 and to evaluate whether there is a relationship between left ventricular mass index and cTnT level. MATERIAL AND METHOD: Patients (103) with CKD stage 3-4 between 26 and 85 years of age (mean 60.0 +/- 11.9) entered the present study. Serum cTnT determined using a third-generation electrochemiluminescent immunoassay on an Elecsys 2010 analyzer (Roche Diagnostics Ltd.). All patients underwent echocardiography. Left ventricular hypertrophy (LVH) was considered when LV mass index exceeded 125 g/m2. RESULTS: Overall, 28 patients (28.2%) had cTnT > 0.01 micro/L and two patients (1.8%) had cTnT > 0.1 microg/L cTnT concentration was commonly increased in more severe CKD (9 patients in stage 3 and 20 patients in stage 4). LVH was not associated with increased cTnT (p=0.105). CONCLUSION: The present study demonstrated that the elevated cTnT > 0.01 microg/L is relatively common in patients with CKD stage 3-4 who do not require dialysis treatment, however serum cTnT level above > 0.1 microg/L is uncommon in this population. Increased serum cTnT is associated with decreased renal clearance but not LVH.
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