Relationship between Cardiac Troponin and Thrombo-Inflammatory Molecules in Prediction of Outcome after Acute Ischemic Stroke

J Stroke Cerebrovasc Dis. 2018 Apr;27(4):951-956. doi: 10.1016/j.jstrokecerebrovasdis.2017.10.040. Epub 2017 Dec 14.

Abstract

Background: In patients with acute ischemic stroke (AIS) without cardiovascular complications, we investigated the association of serum concentration of cardiac troponin (high-sensitivity cardiac troponin T [hs-cTnT]) with thrombo-inflammatory markers.

Methods: Thirty-five patients with first-ever AIS were prospectively examined. Serum hs-cTnT was measured 6 and 24 hours after stroke, whereas S100B, high-sensitivity C-reactive protein (hsCRP), soluble CD40 ligand, tissue plasminogen activator (tPA), monocyte chemoattractant protein-1 (MCP-1), and P-selectin were measured 6 and 72 hours after stroke. Severity of stroke was assessed by the National Institutes of Health Stroke Scale (NIHSS) on admission, 24 hours later, and at discharge.

Results: Concentration of MCP-1 at 6 hours was higher in the serum of patients with worsened NIHSS by 24 hours (P = .009). Concentration of hs-cTnT at both 6 and 24 hours was higher, if NIHSS worsened by discharge (P = .026 and P = .001). A cutoff value for hs-cTnT measured at T24 greater than or equal to 9.4 predicted worsened NIHSS on discharge with a sensitivity of 81% and a specificity of 74% (area: .808, P = .002). Concentration of hs-cTnT at both 6 and 24 hours was also higher in nonsurvivors compared with survivors (P = .03, respectively), and correlated with (1) tPA levels at 6 hours (P = .001 and P = .002, respectively); (2) MCP-1 concentration at 6 hours (P = .01 and P = .015, respectively); and increased hsCRP levels at 72 hours (P = .01, respectively). Concentration of hs-cTnT at 24 hours was an independent predictor of worsened NIHSS at discharge (odds ratio: 1.58, 95% confidence interval: 1.063-2.370, P = .024).

Conclusions: Elevated concentration of hs-cTnT measured 24 hours after AIS is an independent predictor of progressing neurologic deficit in patients without apparent myocardial damage, and also correlates with acute elevation of tPA and MCP-1.

Keywords: Acute ischemic stroke; S100B; high-sensitivity troponin t; monocyte chemoattractant protein-1; outcome.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Biomarkers / blood
  • Brain Ischemia / blood*
  • Brain Ischemia / diagnosis
  • Brain Ischemia / mortality
  • Brain Ischemia / therapy
  • Chemokine CCL2 / blood*
  • Chi-Square Distribution
  • Disability Evaluation
  • Female
  • Humans
  • Inflammation Mediators / blood*
  • Logistic Models
  • Male
  • Middle Aged
  • Odds Ratio
  • Predictive Value of Tests
  • Prognosis
  • Prospective Studies
  • Risk Factors
  • Stroke / blood*
  • Stroke / diagnosis
  • Stroke / mortality
  • Stroke / therapy
  • Time Factors
  • Tissue Plasminogen Activator / blood*
  • Troponin T / blood*
  • Up-Regulation

Substances

  • Biomarkers
  • CCL2 protein, human
  • Chemokine CCL2
  • Inflammation Mediators
  • Troponin T
  • Tissue Plasminogen Activator