[Acute diseases of the brain and heart : A reciprocal culprit-victim relationship]

Area of Science:

• Neuroscience
• Cardiology
• Systemic Pathophysiology

Background:

• The brain and heart exhibit a reciprocal relationship, where dysfunction in one organ can lead to damage in the other, particularly during acute and severe illnesses.
• Systemic processes like arteriosclerosis can affect both the brain and heart.
• Cerebral events, including stroke and seizures, can precipitate cardiac issues, while cardiac events like embolism can cause cerebral ischemia or hypoxia.

Purpose of the Study:

• To elucidate the pathophysiological mechanisms underlying the brain-heart axis dysfunction.
• To highlight the clinical implications of brain-induced cardiac changes.
• To emphasize the need for cardiac monitoring in patients with acute brain diseases.

Main Methods:

• Review of existing literature on the brain-heart axis.
• Analysis of pathophysiological pathways including autonomic dysregulation, neuroendocrine disorders, and inflammation.
• Examination of clinical manifestations of cardiac changes in patients with acute brain diseases.

Main Results:

• Acute brain diseases affect the heart in up to 75% of patients.
• Observed cardiac effects include ECG changes, arrhythmias, elevated cardiac enzymes, and myocardial damage.
• These cardiac changes can range from minor abnormalities to sudden cardiac death.

Conclusions:

• The brain-heart axis is a critical determinant of patient outcomes in acute neurological conditions.
• Cerebrally induced cardiac dysfunction is common and potentially life-threatening.
• Continuous cardiac monitoring is essential for managing patients with severe acute brain diseases to detect and manage cardiac complications promptly.