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  • Title: [Variations of troponin T in chronic hemodialysis patients: study of 52 cases].
    Author: Mnif O, Belhadj R, Zerelli L, Helal I, El Younsi F, Abdelmoula J, Khedher A.
    Journal: Tunis Med; 2009 Apr; 87(4):285-8. PubMed ID: 19835288.
    Abstract:
    BACKGROUND: Patients with severe renal dysfunction have unexplained elevated serum concentrations of cardiac troponin T. AIM: Study the frequency of elevated cTnT in hemodialysis patients and investigated whether cTnT is elevated. METHODS: The patient population consisted of 52 patients on maintenance hemodialysis and 20 healthy subjects. cTnT was measured before and after hemodialysis by using immunoenzymatic method. cTnT were undetectable in 7 cases(< 0.01 ng/ml) and higher than normal range (up to 0.1 ng/ml) in 9 cases. 32 cases have a level of cTnT > 0.01 and < 0.1 ng/ml. In addition, TnTc levels are significantly associated with cardiac dysfunction (p < 0.05) and inflammation (p 0.01). RESULTS: After hemodialysis sessions, TnTc was less than 0.01 ng/1 in 11 patients (21.2%), between 0.01 and 0.1 ng/ml in 32 subjects (61.5%) and greater than 0.1 ng/ml in 9 subjects (17.3%). In the control group, only 1 subject (5%) had a rate of TnTc between 0.01 and 0.1 ng/ml, whereas it was less than 0.01 ng/ml for all others. We aim a statistically significant positive correlation between the rate of TnTc and heart failure (p < 0.05) on the one hand and serum CRP (p < 0.01) on the other. CONCLUSION: The causes of elevated cTnT levels in hemodialysis patients was multiple: cardiac dysfunction, left ventricular dysfunction and inflammation.
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