Related Experiment Videos
[Heart and brain]
1Zentrum für Neurologie und Neurochirurgie, Universitätsklinikum Giessen, Neurologische Klinik, Am Steg 14, 35385 Giessen. Manfred.Kaps@neuro.med.uni-giessen.de
Insights
The heart and brain share anatomical and pathological links, with 20-30% of strokes being cardioembolic. While atherosclerosis affects both, prevention strategies differ, highlighting unique risks for coronary and cerebral vascular disorders.
Area of Science:
- Cardiovascular and Neurological Sciences
- Pathophysiology of Vascular Disorders
Context:
- The heart and brain exhibit significant anatomical and pathological interconnections.
- Cerebral circulation originates in the heart, making it a source for 20-30% of cardioembolic strokes.
- Both organs are susceptible to atherosclerotic processes, yet exhibit distinct infarction mechanisms.
Purpose:
- To explore the intricate relationship between cardiac and cerebral vascular disorders.
- To differentiate the etiological factors and preventive strategies for coronary versus cerebral infarctions.
- To analyze commonalities and differences in risk evaluation and management for cardioembolic stroke and coronary artery disease.
Summary:
- Coronary infarction is primarily driven by atherosclerosis with plaque rupture, unlike cerebral infarction where embolic mechanisms are more prevalent.
- Brain lesions, particularly in the right insular cortex, can trigger cardiac arrhythmias and alter cardiovascular function.
- Preventive pharmacotherapy and risk assessment (e.g., anticoagulation, thrombolysis) require tailored approaches for cardiac and cerebral vascular protection.
Impact:
- Provides a nuanced understanding of the heart-brain axis in vascular pathology.
- Emphasizes the need for distinct diagnostic and therapeutic strategies for cardiovascular and cerebrovascular diseases.
- Informs clinical practice regarding personalized preventive medicine for patients at risk of stroke and heart attack.
Abstract:
The heart and the brain are closely related, not only proverbially but also anatomically and pathogenetically. Cerebral circulation begins in the heart, through which a major pathomechanism of stroke is predestined: 20-30% of all cerebral infarctions are cardioembolically related. Both organs are equally affected by atherosclerotic processes. Despite this close relationship, generalizing extrapolations from heart to cerebral infarction are usually not applicable. The occurrence of coronary infarction is almost exclusively due to atherosclerosis with plaque rupture, whereas embolic mechanisms such as in cerebral infarction or microangiopathic processes play almost no role. On the other hand, the brain also influences the cardiovascular system. Thus, infarctions particularly in the region of the right insular cortex can induce cardiac arrhythmia and ECG and blood pressure changes. Additionally, vegetative crises with increased sympathicotonia and increased parasympathicotonia are common clinical observations in severe brain disease. A close relation between the two organs can also be observed in preventive pharmacotherapy. Similar principles, however, stand in contrast to considerations of various clinical risks and values, as can be seen for example in anticoagulation or thrombolysis. In this study, special attention is paid to cardioembolic stroke and preventive medicine aspects of coronary and cerebral vascular disorders. In particular, stress is placed on the discerning of commonalities and various evaluations of test results.