Acute stroke: pathophysiology, diagnosis, and treatment

Area of Science:

• Neurology
• Cardiovascular Science
• Public Health

Background:

• Stroke is the third leading cause of death in the U.S., characterized by altered cerebral circulation.
• Key risk factors include hypertension, family history, and diabetes mellitus.
• Stroke subtypes include ischemic, embolic, and hemorrhagic events, each with distinct pathophysiological mechanisms.

Purpose of the Study:

• To provide an overview of stroke, including its risk factors, subtypes, and diagnostic methods.
• To discuss current treatment strategies, emphasizing thrombolytic therapy for specific stroke types.
• To highlight recommendations for future stroke care and research directions.

Main Methods:

• Review of existing literature on stroke etiology, risk factors, and classification.
• Description of diagnostic tools such as computed tomography (CT) scans, magnetic resonance imaging (MRI), and the National Institutes of Health Stroke Scale (NIHSS).
• Summary of current therapeutic interventions, focusing on thrombolytic agents for ischemic and embolic strokes.

Main Results:

• Ischemic and embolic strokes result from thrombi and emboli due to atherosclerosis, leading to neuronal injury.
• Intracerebral hemorrhage stems from cerebral vessel rupture, often linked to hypertension.
• Diagnosis relies on imaging (CT, MRI) and clinical scales (NIHSS), with treatment tailored to stroke etiology.

Conclusions:

• Thrombolytic therapy is a primary treatment for thrombotic and embolic strokes.
• Future stroke care recommendations emphasize the establishment of specialized stroke centers.
• Ongoing research should explore neuroprotective therapies to improve stroke outcomes.