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Myocardial Injury after Stroke
Michal Mihalovic1, Petr Tousek1
1Department of Cardiology, Third Faculty of Medicine, University Hospital Královské Vinohrady, Charles University, 100 34 Prague, Czech Republic.
Insights
Stress significantly impacts the heart after stroke, causing autonomic dysfunction and inflammation. Understanding these brain-heart interactions is crucial for diagnosing and treating cardiac issues in stroke patients.
Area of Science:
- Neuroscience
- Cardiology
- Pathophysiology
Background:
- The cardiovascular system is significantly affected by stress following a stroke.
- Complex brain-heart interactions are increasingly understood.
- Stroke-induced autonomic dysfunction and inflammation alter cardiomyocyte metabolism.
Purpose of the Study:
- To explore the epidemiology, pathophysiological mechanisms, and cardiac changes post-stroke.
- To highlight the importance of differentiating cardiac abnormalities caused by brain injury versus coexisting heart disease.
Main Methods:
- Review of current literature on cardiovascular effects of stroke.
- Analysis of pathophysiological mechanisms linking brain injury to cardiac dysfunction.
- Discussion of diagnostic tools like blood biomarkers and electrocardiogram.
Main Results:
- Stroke can lead to serious cardiac complications and long-term heart problems.
- Autonomic dysfunction and systemic inflammation are key mediators.
- Blood biomarkers and ECG are valuable for prognosis and treatment strategy.
Conclusions:
- Distinguishing the origin of cardiac abnormalities (brain injury vs. ischemic heart disease) is critical for effective patient treatment.
- Further research into brain-heart axis in stroke is warranted.
- Early identification and management of cardiac issues improve outcomes for stroke survivors.
Abstract:
The cardiovascular system is markedly affected by stress after stroke. There is a complex interaction between the brain and heart, and the understanding of the mutual effects has increased in recent decades. Stroke is accompanied by pathological disturbances leading to autonomic dysfunction and systemic inflammation, which leads to changes in cardiomyocyte metabolism. Cardiac injury after stroke may lead to serious complications and long-term cardiac problems. Evidence suggests that blood biomarkers and electrocardiogram analyses can be valuable for estimating the severity, prognosis, and therapy strategy in patients after stroke. It is necessary to distinguish whether these abnormalities presenting in stroke patients are caused by coexisting ischemic heart disease or are caused by brain injury directly. Distinguishing the origin can have a great impact on the treatment of patients after acute stroke. In this article, we focus on epidemiology, pathophysiological mechanisms, and the presentation of cardiac changes in patients after stroke.
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