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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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Electrocardiographic and troponin T changes in acute ischaemic stroke

B Fure1, T Bruun Wyller, B Thommessen

  • 1Department of Geriatric Medicine, Ullevaal University Hospital, Oslo, Norway. bryfure@online.no

Journal of Internal Medicine
|May 18, 2006
PubMed

Insights

Electrocardiogram (ECG) changes are common in acute ischemic stroke and may indicate heart issues. Elevated troponin T (TnT) levels, linked to specific ECG changes, predict a worse short-term outcome.

Area of Science:

  • Cardiology
  • Neurology
  • Biomarkers

Background:

  • Mechanisms of electrocardiogram (ECG) changes and troponin T (TnT) elevation in acute stroke are not fully understood.
  • Assessing the prevalence and significance of these changes is crucial for patient outcomes.

Purpose of the Study:

  • To determine the frequency of ECG and TnT alterations in acute ischemic stroke patients.
  • To investigate the correlation between specific ECG changes and elevated TnT.
  • To evaluate if ECG changes and raised TnT predict poor short-term prognosis.

Main Methods:

  • Prospective study of 279 acute ischemic stroke patients between 2000-2002.
  • ECG and TnT measurements performed at admission and on day 1.
  • Logistic regression analysis used to assess associations.

Main Results:

  • Prevalent ECG changes included prolonged QTc (36.0%), ST depression (24.5%), and T wave inversion (17.8%).
  • ST depression and Q waves were significantly associated with increased TnT.
  • Elevated TnT (>0.04 microg L(-1)) observed in 9.6% of patients and predicted poor short-term outcome.

Conclusions:

  • ECG abnormalities are frequent in acute ischemic stroke, with ST depression and Q waves potentially indicating coexisting ischemic heart disease.
  • Elevated TnT is a significant predictor of poor short-term outcomes.
  • Patients require comprehensive cardiologic and neurologic follow-up and secondary prevention strategies.
Abstract

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