Cardiac Troponin I: A Valuable Biomarker Indicating the Cardiac Involvement in Fabry Disease

Christian Tanislav1, Dursun Guenduez2, Christoph Liebetrau3,4

  • 1Department of Neurology, Justus Liebig University, Giessen, Germany.

Plos One
|June 21, 2016
PubMed

Insights

Cardiac troponin I (cTnI) elevation is common in Fabry disease (FD) patients, indicating cardiac involvement. Continuous cTnI monitoring may benefit FD patients with cardiac complications.

Area of Science:

  • Cardiology
  • Genetics
  • Biochemistry

Background:

  • Fabry disease (FD) is a rare, X-linked, progressive genetic disorder caused by alpha-galactosidase deficiency.
  • Assessing cardiac involvement in FD is clinically challenging.
  • Cardiac troponin I (cTnI) is a potential biomarker for cardiac damage.

Purpose of the Study:

  • To evaluate the diagnostic value of cardiac troponin I (cTnI) in identifying cardiac involvement in Fabry disease patients.
  • To assess the correlation between elevated cTnI levels and clinical data in a large cohort of FD patients.

Main Methods:

  • Cardiac troponin I (cTnI) levels were measured using a sensitive assay in plasma samples from 62 FD patients.
  • Elevated cTnI levels (cut-off ≥0.04 ng/ml) were correlated with clinical data, including left ventricular hypertrophy (LVH).
  • A control group of non-FD patients with LVH was included for comparison.

Main Results:

  • Elevated cTnI levels were detected in 37% of FD patients, associated with older age and left ventricular hypertrophy (LVH).
  • Patients with LVH showed significantly higher cTnI levels (median 0.23 ng/ml vs. 0.02 ng/ml).
  • A cTnI level below 0.04 ng/ml demonstrated a high negative predictive value (97%) for the presence of LVH.

Conclusions:

  • Elevated cTnI levels are prevalent in FD patients and reflect cardiac involvement.
  • Continuous monitoring of cTnI may be beneficial for managing cardiac complications in Fabry disease.
  • cTnI shows promise as a biomarker for cardiac involvement in FD.
Abstract

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