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Updated: Aug 7, 2026

2-Vessel Occlusion/Hypotension: A Rat Model of Global Brain Ischemia
Published on: June 22, 2013
[Cardiac injury in acute cerebral vasculopathy]
R Zeppellini1, F Salsa, G Gheno
1Struttura Complessa di Cardiologia, Ospedale Civile di Bassano del Grappa, VI. rzeppel@tin.it
Insights
Cardiac complications after stroke, like arrhythmias, are common and worsen outcomes. These events, particularly after subarachnoid hemorrhage, are linked to the stroke
Area of Science:
- Cardiology
- Neurology
- Neurocardiology
Context:
- Stroke frequently leads to cardiac complications, impacting patient prognosis.
- The type and location of cerebrovascular disease influence the spectrum of cardiac issues.
- Subarachnoid hemorrhage is associated with a higher incidence of arrhythmias and pulmonary edema compared to ischemic stroke.
Purpose:
- To explore the relationship between stroke and cardiac complications.
- To understand the mechanisms underlying stroke-induced cardiac dysfunction.
- To review the clinical spectrum and risk factors for cardiac events post-stroke.
Summary:
- Cardiac complications such as myocytolysis, ECG changes, arrhythmias, and wall motion abnormalities are frequent after stroke.
- Lesions in the right insular cortex are a significant risk factor for complex arrhythmias and sudden death.
- Elevated norepinephrine levels suggest a sympathetically mediated mechanism for these cardiac events.
- Pre-existing cardiac conditions, electrolyte imbalances, and genetic factors can modulate stroke's cardiovascular effects.
Impact:
- Understanding these neurocardiac links can improve stroke patient management.
- Identifying high-risk patients for arrhythmias may allow for targeted interventions.
- Further clinical trials are needed to establish evidence-based treatments, such as beta-blockers, for stroke-related cardiac complications.
Abstract:
Cardiac complications, including focal myocytolysis, electrocardiographic changes, arrhythmias and left ventricular wall motion abnormalities, frequently occur following stroke and contribute to worsen the prognosis. Their clinical spectrum seems to be related to the type of cerebrovascular disease and its localization. Thus, the incidence of arrhythmias and pulmonary edema is significantly higher in subarachnoid hemorrhage than in ischemic stroke, and the lesions in the right insular cortex are a major risk for complex arrhythmias and sudden death. Elevated plasma norepinephrine levels are frequently associated with these events and strongly suggest an underlying sympathetically mediated mechanism. The autonomic and cardiovascular effects of stroke, however, are modulated by concomitant factors such as pre-existent cardiac diseases, electrolyte disorders and, probably, by genetic alterations in the ionic control of myocyte repolarization. Although beta-blockers have been reported to prevent myocardial damage following stroke, adequate clinical trials are lacking, and the widespread use of these drugs in acute cerebrovascular disease is not supported by evidence.
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Hemorrhagic Stroke l: Introduction
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