Stroke (Cerebrovascular Accident)
A medical emergency that occurs when blood supply to the brain is interrupted or reduced. Prompt recognition and treatment within hours can prevent permanent brain damage and disability. Time is critical—act FAST.
🚨 CALL 911 IMMEDIATELY if you suspect stroke symptoms
Remember F.A.S.T.
Recognizing stroke symptoms within the first few hours is critical. Use the FAST test to identify potential stroke. If any sign is present, call 911 immediately. Time is brain—every minute counts.
Face Drooping
Ask the person to smile. Check if one side of the face droops or feels numb.
Arm Weakness
Ask to raise both arms. Does one drift downward? Check for numbness or weakness.
Speech Difficulty
Ask to repeat a simple phrase. Is speech slurred, strange, or difficult to understand?
Time to Call 911
If ANY of these signs are present, call 911 immediately. Note the time symptoms started.
⏰ TIME IS CRITICAL
If any F.A.S.T. sign is present, call 911 immediately and note the exact time symptoms started. Clot-busting medications like tPA are most effective within 3-4.5 hours of symptom onset. Brain cells die at a rate of 32,000 per minute during stroke.
What is a Stroke?
A stroke, also called cerebrovascular accident (CVA), occurs when blood supply to the brain is interrupted or reduced. Without adequate blood flow, brain cells are deprived of oxygen and nutrients, causing them to die rapidly.
Stroke is a medical emergency requiring immediate treatment. The faster treatment is given, the better the outcome. Prompt intervention can prevent permanent brain damage, disability, and death.
Other Stroke Symptoms
Sudden severe headache with no known cause
Sudden vision problems in one or both eyes
Sudden difficulty walking or loss of balance
Dizziness or lack of coordination
Sudden confusion or difficulty understanding speech
Sudden numbness in face, arm, or leg
Sudden weakness on one side of the body
Difficulty speaking or expressing thoughts
Types of Stroke
Ischemic Stroke (80-85% of cases)
Blood clot blocks an artery in the brain
Causes:
Thrombotic stroke - Blood clot forms in brain artery
Embolic stroke - Clot travels from heart or arteries and lodges in brain
Atherosclerotic plaque blocking blood flow
Most common type; best response to clot-busting medications if treated quickly
Hemorrhagic Stroke (15-20% of cases)
Bleeding in or around the brain
Causes:
Cerebral hemorrhage - Blood vessel ruptures in brain tissue
Subarachnoid hemorrhage - Bleeding in space around brain
Aneurysm rupture - Weakened artery bursts
More severe but less common; focus on stopping bleeding and reducing pressure
Stroke Risk Factors
High Blood Pressure
Most significant modifiable risk factor for stroke
Diabetes
Significantly increases stroke risk
Heart Disease
Atrial fibrillation and other cardiac conditions increase risk
High Cholesterol
Contributes to plaque buildup in arteries
Smoking
Damages blood vessel walls and increases clot risk
Obesity
Associated with hypertension, diabetes, and heart disease
Physical Inactivity
Sedentary lifestyle increases multiple stroke risk factors
Excessive Alcohol
Increases blood pressure and clot formation
Age Over 55
Stroke risk increases significantly with age
Family History
Genetic predisposition to stroke and related conditions
Previous Stroke or TIA
History greatly increases recurrence risk
Atrial Fibrillation
Heart rhythm disorder increases blood clot formation
If You Suspect a Stroke
Call 911 Immediately
Do not drive to hospital. Ambulance provides critical care en route and alerts hospital.
Note the Time
Record exact time symptoms started - this is crucial for treatment decisions (window is within 3-4 hours)
Keep Person Safe
Do not give food or drink. Lay person flat if conscious. Protect airway if unconscious.
Stay Calm & Monitor
Watch for changes. Be ready to perform CPR if trained. Stay with person until paramedics arrive.
Provide Information
Tell paramedics when symptoms started, current medications, allergies, and recent events.
Don't Delay Care
Every minute counts. Brain cells die at rate of 32,000 per minute during stroke.
DO NOT DELAY EMERGENCY CARE
Ambulance paramedics can begin initial assessment and notify the hospital. They can administer oxygen if needed and monitor vital signs. This head start can be life-saving.
Stroke Diagnosis & Imaging
Rapid diagnosis is critical to determine stroke type and guide treatment decisions. Multiple tests are performed immediately in the emergency department.
CT Scan (Computed Tomography)
First imaging - quickly rules out hemorrhage
MRI (Magnetic Resonance Imaging)
Detailed imaging to identify ischemic areas and stroke location
CT Perfusion
Shows blood flow to brain tissue
Blood Tests
Evaluate clotting function, blood sugar, and other factors
ECG (Electrocardiogram)
Checks for heart rhythm problems like atrial fibrillation
Carotid Ultrasound
Evaluates blood vessels in neck for blockages
Echocardiogram
Examines heart structure and function
Angiography
Detailed imaging of blood vessels in brain
Ischemic Stroke Treatment
Ischemic stroke treatment focuses on restoring blood flow to the brain as quickly as possible. Multiple approaches may be used depending on patient factors and imaging findings.
Thrombolytic Therapy (Clot Busters)
Breaks down blood clots to restore blood flow
Examples: Tissue Plasminogen Activator (tPA), Alteplase
Timing: Most effective within 3-4.5 hours of symptom onset
IV administration in emergency department
Anticoagulants
Prevents clot formation and extension
Examples: Aspirin, Heparin, Warfarin, Direct oral anticoagulants
Timing: Started immediately in emergency department
Continued long-term for stroke prevention
Antiplatelet Therapy
Prevents platelets from clumping together
Examples: Aspirin, Clopidogrel (Plavix), Ticagrelor
Timing: Started in acute phase and continued long-term
Key component of stroke prevention
Mechanical Thrombectomy
Catheter procedure to remove clot mechanically
Examples: Stent retriever, Aspiration catheter
Timing: Within 24 hours of symptom onset (varies by clot location)
Increasing window for intervention with newer techniques
Hemorrhagic Stroke Treatment
Hemorrhagic stroke treatment focuses on stopping the bleeding, controlling blood pressure, and reducing intracranial pressure. Surgical intervention may be necessary.
Blood Pressure Management
Critical to stop bleeding and prevent rebleeding
Examples: IV antihypertensive medications, Continuous monitoring
Timing: Immediate treatment in emergency department
Target BP varies by individual and bleeding location
Reversal of Blood Thinners
If patient on anticoagulation therapy
Examples: Vitamin K, Fresh frozen plasma, Prothrombin complex concentrate
Timing: Administered urgently to stop bleeding
Critical if on warfarin or other anticoagulants
Anticonvulsant Medications
Prevents seizures common after hemorrhagic stroke
Examples: Phenytoin, Levetiracetam, Valproic acid
Timing: Prophylactically during acute phase
Important for preventing secondary brain injury
Surgical Intervention
For aneurysm, arteriovenous malformation, or large hematoma
Examples: Craniotomy, Endovascular coiling, Hematoma evacuation
Timing: Urgent evaluation; timing depends on severity
Neurosurgeon consultation critical
Supportive Care
Management of complications and secondary prevention
Examples: Infection prevention, DVT prevention, Temperature management
Timing: Throughout hospitalization
Critical for recovery and preventing complications
Stroke Recovery Phases
Stroke recovery is a long-term process. Most recovery occurs in the first 3-6 months, but improvements can continue for years with proper rehabilitation.
Acute Phase (Hours to Days)
Medical stabilization, clot removal or bleeding control, preventing complications
Subacute Phase (Days to Weeks)
Continued medical management, beginning rehabilitation, managing swelling
Early Recovery (Weeks to Months)
Intensive rehabilitation, regaining function, speech/physical therapy
Late Recovery (Months to Years)
Continued rehabilitation, preventing recurrence, adapting to any lasting effects
Potential Complications & Disability
Stroke can cause lasting effects depending on severity and location. Understanding potential complications emphasizes importance of prevention and prompt treatment.
Physical Disability
Paralysis or weakness affecting one side of body, difficulty with coordination
Speech Problems
Aphasia (difficulty speaking) or dysarthria (slurred speech)
Cognitive Changes
Memory loss, difficulty concentrating, problem-solving difficulties
Vision Problems
Partial vision loss, double vision, or field defects
Emotional Changes
Depression, anxiety, mood swings, emotional lability
Pain Syndromes
Central post-stroke pain, often severe and difficult to treat
Swallowing Difficulties
Dysphagia requiring modified diet or feeding tube
Bladder/Bowel Control
Incontinence from neurological damage
Spasticity
Muscle stiffness and involuntary muscle contractions
Cognitive Decline Risk
Multiple strokes increase dementia risk
Stroke Prevention Strategies
Up to 80% of first strokes are preventable through lifestyle changes and medical management. Take control of your health and reduce your stroke risk significantly.
Control blood pressure - maintain <130/80 mm Hg
Manage diabetes - keep blood sugar controlled
Maintain healthy cholesterol levels through diet and medication
Don't smoke - smoking cessation is critical
Exercise regularly - 150 minutes moderate activity per week
Maintain healthy weight - BMI between 18.5-24.9
Eat healthy diet - Mediterranean or DASH diet recommended
Limit sodium intake - reduces blood pressure
Limit alcohol consumption
Take prescribed medications regularly (blood pressure, cholesterol, anticoagulants)
Manage stress effectively
Get adequate sleep - 7-9 hours per night
Regular medical check-ups and screening
Know your family history and discuss with doctor
Monitor for symptoms of heart disease or TIA
Take Charge of Your Health: Regular medical check-ups, managing chronic conditions, medications compliance, and lifestyle modifications are key to preventing stroke. Know your risk factors and work with your doctor on a prevention plan.
Emergency Warning Signs
If any of these signs appear suddenly, call 911 immediately. Do not wait, do not drive yourself to the hospital.
Sudden Face Drooping
Asymmetrical facial weakness or numbness
Sudden Arm/Leg Weakness
Loss of strength, especially on one side
Sudden Speech Difficulty
Slurred speech or difficulty understanding
Sudden Vision Loss
Blurred, double vision, or loss of vision
Sudden Severe Headache
Worst headache of your life
Sudden Balance Loss
Dizziness, vertigo, or inability to walk
Sudden Confusion
Difficulty understanding or expressing thoughts
Sudden Numbness
Tingling or loss of sensation
🚨 STROKE IS A MEDICAL EMERGENCY
If you or someone nearby shows signs of stroke, call 911 immediately. Do not drive to the hospital. Do not wait. Time is brain. Every minute without treatment increases risk of permanent brain damage. Clot-busting medications are only effective within 3-4.5 hours. Fast recognition and emergency treatment save lives. Learn the F.A.S.T. signs and spread awareness.