Porter Health
Understanding Stroke: Prevention, Recognition, and Recovery
A Patient's Guide to Preventing and Responding to Brain Attacks
A stroke is a "brain attack" that happens when blood flow to part of your brain is interrupted. Brain cells need constant oxygen and nutrients from blood to survive. When blood flow stops, brain cells begin to die within minutes.
Two Main Types of Stroke:
Ischemic Stroke (87% of strokes)
What happens: Blood clot blocks an artery to the brain
Causes: Clot forms in brain artery (thrombotic) OR clot travels from heart/neck (embolic, often from AFib)
Hemorrhagic Stroke (13% of strokes)
What happens: Blood vessel ruptures and bleeds into brain
Causes: High blood pressure (most common), aneurysm, blood thinners, head trauma
TIA (Transient Ischemic Attack) - "Mini-Stroke"
Warning stroke: Blood flow temporarily blocked, symptoms resolve within 24 hours (usually <1 hour)
⚠️ Don't ignore TIAs! 1 in 3 people who have a TIA will have a major stroke, often within days. Call 911 immediately!
Stroke Statistics:
- 800,000 Americans have a stroke each year
- Someone in the U.S. has a stroke every 40 seconds
- Stroke is the #5 cause of death and leading cause of disability
- 80% of strokes are preventable with risk factor management
- Treatment within 4.5 hours can reverse damage and save lives
TIME = BRAIN: Every Minute Counts!
2 million brain cells die every minute during a stroke. Immediate treatment can reverse damage and save your life. Don't wait to see if symptoms improve - CALL 911 NOW!
FACE Drooping
Does one side of the face droop or is it numb? Ask the person to smile. Is the smile uneven or lopsided?
TEST: Ask them to smile and show their teeth
ARM Weakness
Is one arm weak or numb? Ask the person to raise both arms. Does one arm drift downward?
TEST: Ask them to hold both arms out straight for 10 seconds
SPEECH Difficulty
Is speech slurred? Is the person unable to speak or hard to understand? Can they repeat a simple sentence correctly?
TEST: Ask them to repeat "The sky is blue in Cincinnati"
TIME to Call 911
If the person shows ANY of these symptoms, even temporarily, call 911 immediately. Note the time symptoms started.
CRITICAL: Tell 911 operator the time symptoms began (needed for treatment decisions)
Other Stroke Symptoms:
- Sudden numbness or weakness of face, arm, or leg (especially one side)
- Sudden confusion or trouble understanding others
- Sudden trouble seeing in one or both eyes (blurred, double vision, or vision loss)
- Sudden trouble walking, dizziness, loss of balance or coordination
- Sudden severe headache with no known cause ("worst headache of my life")
CRITICAL Actions:
- Call 911 immediately - DO NOT drive to hospital yourself
- Note the time symptoms started (determines treatment eligibility)
- Don't wait to see if symptoms go away - even temporary symptoms (TIA) require emergency care
- EMS gets you to the right hospital - stroke centers can give clot-busting drugs
- Do NOT give aspirin until doctors determine stroke type (bleeding vs clot)
Treatment depends on the type of stroke. Doctors use CT scan or MRI to determine if stroke is ischemic (clot) or hemorrhagic (bleed).
tPA (Tissue Plasminogen Activator) - "Clot Buster"
For ischemic strokes only (87% of strokes)
How it works:
- IV medication that dissolves blood clots
- Restores blood flow to oxygen-starved brain tissue
- Can reverse stroke damage if given early enough
- Significantly improves outcomes - 30% more likely to have minimal disability
CRITICAL TIME WINDOW: Must be given within 4.5 hours of symptom onset
Best results if given within 3 hours. This is why noting symptom start time is crucial!
Mechanical Thrombectomy - "Clot Retrieval"
For large vessel occlusions (blockages in major brain arteries)
How it works:
- Thread catheter through artery in groin to brain
- Use special device (stent retriever or suction) to physically remove clot
- Restore blood flow immediately
- Can be done up to 24 hours after symptom onset (in select patients)
Results: Doubles chance of good recovery compared to tPA alone for large clots
Hemorrhagic Stroke Treatment
Goal: Stop bleeding, reduce pressure on brain
- Lower blood pressure: Prevent further bleeding
- Reverse blood thinners: If on warfarin or other anticoagulants
- Surgery: May be needed to remove blood, repair vessel, relieve pressure
- Coiling or clipping: For ruptured aneurysm
Risk of Second Stroke: 15% within first year
After a stroke or TIA, medications can reduce your risk of another stroke by up to 80%. Most stroke survivors need multiple medications to control different risk factors.
Antiplatelet Drugs (Blood Thinners)
For ischemic stroke: Prevent blood clots from forming
- • Aspirin 81-325mg daily - Most common, lifelong
- • Clopidogrel (Plavix) 75mg daily - Alternative if aspirin not tolerated
- • Dual antiplatelet (aspirin + Plavix) - For first 21-90 days after minor stroke/TIA
- • Aspirin + dipyridamole (Aggrenox) - Less commonly used
Anticoagulation (Stronger Blood Thinners)
For AFib-related strokes: Prevent clots from forming in the heart
20% of strokes are caused by AFib! If you have AFib, you need stronger anticoagulation:
- • DOACs: Apixaban (Eliquis), rivaroxaban (Xarelto), edoxaban (Savaysa) - preferred
- • Warfarin (Coumadin): Requires regular INR monitoring
⚠️ Aspirin is NOT adequate for AFib stroke prevention - you need anticoagulation!
Statin (Cholesterol Medicine)
Target LDL: <70 mg/dL after stroke
High-intensity statins reduce stroke recurrence by 15-20%, even if cholesterol is "normal." They stabilize plaque and reduce inflammation.
Examples: Atorvastatin 40-80mg, rosuvastatin 20-40mg
Blood Pressure Medications
Target BP: <130/80 mmHg (or lower if tolerated)
High BP is the #1 modifiable risk factor for stroke. Lowering BP reduces stroke risk by 30-40%.
Common medications: ACE inhibitors, ARBs, calcium channel blockers, diuretics
Additional Treatments:
- Carotid endarterectomy or stenting: Surgery to remove plaque from carotid artery if >70% blocked
- PFO closure: Device to close hole in heart (for young stroke patients with PFO)
- Diabetes medications: If diabetic, target HbA1c <7%
Recovery Starts Immediately: Brain Plasticity
Your brain can rewire itself after a stroke through "neuroplasticity." Rehabilitation helps your brain form new connections to compensate for damaged areas. The sooner you start rehab, the better your recovery.
Physical Therapy
Goals:
- Relearn walking and movement
- Improve balance and coordination
- Strengthen weak muscles on affected side
- Prevent falls and complications
- Use adaptive equipment (walker, cane, wheelchair) if needed
Occupational Therapy
Goals:
- Relearn daily activities (dressing, bathing, eating, cooking)
- Improve fine motor skills (buttoning, writing, using utensils)
- Adapt home environment for safety
- Cognitive retraining (memory, problem-solving)
- Return to work and hobbies
Speech-Language Therapy
For aphasia (language problems) and dysarthria (speech problems):
- Relearn how to speak, understand, read, and write
- Improve articulation and clarity
- Swallowing therapy (dysphagia) - prevent aspiration pneumonia
- Communication strategies (gestures, writing, apps)
Recovery Timeline:
- First 3 months: Most rapid recovery (70% of improvement occurs)
- 3-6 months: Continued improvement with intensive therapy
- 6-12 months: Slower gains, but progress still possible
- After 1 year: Recovery can continue for years with ongoing rehab
Key: Never give up! Improvement is possible even years after stroke with consistent effort.
Emotional and Mental Health Support:
Post-stroke depression affects 30-50% of survivors. It's not a sign of weakness - it's a medical condition that can slow recovery.
- Talk to your doctor about depression screening
- Counseling and support groups can help
- Antidepressants may improve mood and motivation for rehab
- Family support is crucial - caregivers need support too!
80% of strokes are preventable! Managing these risk factors can dramatically reduce your stroke risk:
Control High Blood Pressure
THE #1 RISK FACTOR. Target <130/80. Take BP meds daily, monitor at home, reduce salt.
Treat Atrial Fibrillation
AFib increases stroke risk 5-fold. Must be on anticoagulation (Eliquis, Xarelto, warfarin).
Manage Diabetes
Diabetes doubles stroke risk. Target HbA1c <7%. Use SGLT2 inhibitor or GLP-1 agonist.
Lower Cholesterol
Statin therapy reduces stroke by 20%. Target LDL <70 mg/dL.
Quit Smoking
Smoking doubles stroke risk. Risk drops 50% within 1 year of quitting.
Lose Weight
Obesity increases stroke risk. Losing 10% body weight reduces risk significantly.
Exercise Regularly
30 min moderate activity, 5 days/week. Reduces stroke risk by 25%.
Eat Heart-Healthy Diet
Mediterranean diet: vegetables, fruits, whole grains, fish, olive oil. Limit red meat, salt.
Limit Alcohol
Heavy drinking increases stroke risk. Max 1 drink/day (women), 2/day (men).
Treat Sleep Apnea
Sleep apnea doubles stroke risk. Use CPAP if prescribed.
Use this checklist to guide your conversation about stroke:
FAST signs: Face drooping, Arm weakness, Speech difficulty, Time to call 911
Time = LIFESTYLE_ICONS.stress: 2 million brain cells die every minute - immediate treatment saves lives
tPA (clot buster) must be given within 4.5 hours - best if within 3 hours
Thrombectomy (clot retrieval) can be done up to 24 hours for large vessel strokes
20% of strokes caused by AFib - anticoagulation (not aspirin) required
High BP is #1 stroke risk factor - control to <130/80 mmHg
After stroke: antiplatelet/anticoagulation + statin + BP control + risk factor management
Rehabilitation (PT, OT, speech) starts immediately - most recovery in first 3 months
80% of strokes are preventable with risk factor control
References:
Based on 2021 AHA/ASA Guidelines for the Early Management of Patients With Acute Ischemic Stroke and 2022 Guideline for the Management of Patients With Spontaneous Intracerebral Hemorrhage. This guide translates clinical guidelines into patient-friendly language.
Powers WJ, et al. 2018 Guidelines for the Early Management of Patients With Acute Ischemic Stroke. Stroke. 2018;49(3):e46-e110. | American Stroke Association. Stroke Symptoms. Accessed 2024.