Evaluation of the Correlation Between Cardiac Troponin I Versus Causes of Admission and In-Hospital Mortality in End-Stage Renal Disease Patients

Objectives: There are arguments regarding the relationship between the level of cardiac troponin I (cTnI) and presence of cardiac diseases in end-stage renal disease (ESRD) patients. This study aimed to determine the relationship between positivity of cTnI and cause of admission and patients’ outcome in ESRD patients. Methods: In this cross-sectional study, all ESRD patients who had checked cTnI and admitted to two university hospitals in Isfahan, Iranwereenrolled. The patients’ demographiccharacteristics, cause of admission, andoutcomewerecorrelated with cTnI positivity. Results: Out of a total of 348 ESRD patients, 100 subjects had positive cTnI. There was a positive correlation between age and admission in Al-Zahra hospital with positive cTnI. In contrast, vascular access complication and hypertension had a negative correlation with positivity of cTnI. The results of multiple logistic regression analysis showed that factors including age (OR: 1.04; 95% CI: 1.01 - 1.07; P: 0.004) and infections (OR: 3.1; 95% CI: 1.3 - 7.3; P: 0.009) were associated with increased risk of in-hospital mortality. In contrary, exit site infection (OR: 0.11; 95% CI: 0.01 - 0.8; P: 0.03) and hypertension (OR = 0.32; 95% CI: 0.14 - 0.77; P = 0.01) were associated with decreased risk of mortality. Although cTnI positivity correlated with patients’ in-hospital mortality (OR = 2.038). Conclusions: Although positive cTnI had a borderline association with in-hospital mortality in ESRD patients, further multicenter studies with larger sample size are required to confirm the results.