Association between troponin I level and cardiovascular risk factors in asymptomatic hemodialysis patients
Volume 5, Issue 2, Spring 2016, Pages 101-105
. Shahram Taheri, . Ali Asghar Pilehvarian, . Nafiseh Akbari, . Samane Musavi, . Afsoon Emami Naeini
Abstract Objective: Patients on hemodialysis (HD) have a high risk for cardiovascular morbidity
and mortality. Cardiac troponins are biomarkers for diagnosing acute myocardial
injury or infarction. There is considerable controversy that exists in the frequency and
significance of cardiac troponins in predicting cardiac injury and ischemia in HD patients.
Methods: In this cross‑sectional study, all HD patients more than 18‑year‑old, who
were at least 3 months under HD, and had no sign and symptom of active cardiovascular
disease (CVD), in two HD centers were enrolled. One hundred and one patients fulfilled
the inclusion criteria. Blood sample for cardiac troponin I (cTnI) was drown before
the initiation of HD session during their routine monthly blood testing from patients’
vascular access arterial line. cTnI levels were measured by a high‑sensitivity assay,
VIDAS troponin I Ultra kit, and correlated with patients’ demographic, clinical, and
laboratory results.
Findings: The patients’ different demographic and clinical characteristics had no
statistically significant correlation with troponin levels except for marginal trend for past
medical history of diabetes and hyperlipidemia with corresponding P values of 0.072
and 0.055. Twenty‑six patients had cTnI level more than 0.01 µg/L and only two patients
had cTnI level more than 0.11 µg/L. For laboratory results, only fasting blood sugar
had statistically significant correlation with patients’ cTnI level(r = 0.357, P = 0.0001).
Conclusion: Frequency of significant elevation of cTnI level in our asymptomatic
HD patients was very low and if such elevation is found in this population, it may be
considered as a sign of active CVD.
