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Related Concept Videos

Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...

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Related Experiment Video

Updated: Jun 22, 2026

The Stroke Preclinical Assessment Network Multi-Laboratory Model of Thromboembolic Stroke with Thrombolysis: TE-MCAo
06:38

The Stroke Preclinical Assessment Network Multi-Laboratory Model of Thromboembolic Stroke with Thrombolysis: TE-MCAo

Published on: December 19, 2025

Elevated troponin after stroke: a systematic review.

Gillian Kerr1, Gautamananda Ray, Olivia Wu

  • 1Academic Section of Geriatric Medicine, Faculty of Medicine, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK.

Cerebrovascular Diseases (Basel, Switzerland)
|July 3, 2009
PubMed
Summary
This summary is machine-generated.

Elevated troponin levels in acute stroke patients are common, occurring in 18.1%. These findings indicate a higher risk of cardiac issues and mortality, highlighting the clinical significance of troponin testing in stroke care.

Related Experiment Videos

Last Updated: Jun 22, 2026

The Stroke Preclinical Assessment Network Multi-Laboratory Model of Thromboembolic Stroke with Thrombolysis: TE-MCAo
06:38

The Stroke Preclinical Assessment Network Multi-Laboratory Model of Thromboembolic Stroke with Thrombolysis: TE-MCAo

Published on: December 19, 2025

Area of Science:

  • Cardiology
  • Neurology
  • Biomarkers

Background:

  • Troponin elevation in acute stroke patients is observed but its clinical significance remains unclear.
  • Understanding troponin's role is crucial for risk stratification and management of stroke patients.

Purpose of the Study:

  • To systematically review the literature on troponin levels in acute stroke.
  • To determine the prevalence and clinical implications of elevated troponin in stroke.

Main Methods:

  • Systematic review of studies measuring troponin within 7 days of stroke symptom onset.
  • Included 15 studies encompassing 2,901 acute stroke patients.

Main Results:

  • 18.1% of patients exhibited elevated troponin levels.
  • Elevated troponin was associated with electrocardiogram (ECG) changes indicative of myocardial ischemia (OR 3.0).
  • A significant independent association was found between elevated troponin and increased risk of death (OR 2.9).

Conclusions:

  • Elevated troponin levels are a frequent finding in acute stroke.
  • Troponin elevation signifies increased risk of myocardial ischemia and mortality in stroke patients.
  • This highlights the importance of monitoring troponin in acute stroke management.