Baseline Troponin T level in stroke and its association with stress cardiomyopathy

Kai Liesirova1, Eugenio Abela1, Thomas Pilgrim2

  • 1Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.

Plos One
|January 1, 2019
PubMed

Insights

Elevated high-sensitive Troponin T (hsTnT) in acute ischemic stroke is linked to stroke severity and kidney function, not stroke size. Differentiating myocardial infarction from neurogenic stunned myocardium requires further cardiac investigations.

Area of Science:

  • Cardiology
  • Neurology
  • Biomarkers

Background:

  • Elevated high-sensitive Troponin T (hsTnT) in acute ischemic stroke (AIS) presents a diagnostic challenge, with differential diagnoses including myocardial infarction (MI) and neurogenic stunned myocardium (NSM).
  • Understanding factors associated with hsTnT elevation is crucial for accurate diagnosis and patient management in AIS.

Purpose of the Study:

  • To identify factors associated with baseline hsTnT levels in patients with acute ischemic stroke.
  • To explore predictors of myocardial infarction (MI) and neurogenic stunned myocardium (NSM) in the context of elevated hsTnT in AIS.

Main Methods:

  • Retrospective analysis of 204 consecutive patients with AIS from the Bern Stroke Database.
  • Review of patient histories, cardiac examinations, and brain imaging (diffusion/perfusion weighted MRI) including lesion volumetry.
  • Linear regression analysis to identify predictors of hsTnT levels and MI.

Main Results:

  • Elevated hsTnT was observed in 28.4% of patients.
  • hsTnT elevation correlated with creatinine levels, baseline NIHSS score, ST segment depression, and inverted T waves on ECG.
  • Stroke infarct location and size were not associated with hsTnT elevation. MI was diagnosed in 7 of 30 patients who underwent coronary angiography.

Conclusions:

  • Baseline hsTnT elevation in AIS is associated with stroke severity and cardiac abnormalities but not stroke size.
  • Current factors are insufficient to differentiate between MI and NSM, necessitating further cardiac investigations like coronary angiography or cardiac MRI.
Abstract

Related Concept Videos

Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
566
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
488
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
532
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
442
Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
605
Cardiomyopathy VI: Nursing Management01:29

Cardiomyopathy VI: Nursing Management

Assessment: Nursing management of patients with cardiomyopathy begins with a thorough assessment of the patient's history, including a family history of cardiomyopathy or sudden cardiac death, personal history of heart disease, hypertension, diabetes, and any alcohol consumption or drug use.During the physical examination, assess vital signs, look for signs of heart failure (such as edema, jugular venous distention, and cyanosis), auscultate for abnormal heart sounds (like murmurs and gallops),...
354