Stroke
Disclaimer: This content is for informational purposes only. For medical advice or diagnosis, consult a healthcare professional. In case of an emergency, immediately call 911.
A stroke occurs when the brain’s blood supply is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients. Within minutes, brain cells begin to die. A stroke is a critical medical emergency that requires immediate intervention to minimize brain damage and potential complications.
Who Gets Stroke?
Stroke risk increases significantly with age. High-risk individuals include those with:
- High blood pressure (Hypertension): The leading cause of stroke, which is increasingly found in younger populations.
- Atrial Fibrillation (AFib): An irregular heart rhythm that can cause blood clots.
- High Cholesterol and Diabetes: Both conditions damage blood vessels over time.
While the risk of stroke increases with age, younger populations face a notable rise in stroke cases. 10 to 15% of all strokes occur in individuals between the ages of 18 and 50. In particular, the prevalence of stroke among adults aged 18 to 64 has been steadily increasing in recent years.
Causes of Stroke
- Ischemic Stroke (Most Common): Occurs when a blood clot or fatty deposits (plaque) block an artery leading to the brain. Approximately 87% of all strokes are ischemic.
- Hemorrhagic Stroke: Occurs when a weakened blood vessel in the brain bursts and bleeds into the surrounding tissue.
- Transient Ischemic Attack (TIA): Often called a “mini-stroke,” this is a temporary blockage that serves as a warning sign of a future full-scale stroke. TIA is also a medical emergency that requires immediate attention. If left untreated, the risk of a major stroke significantly increases following a TIA. Even if symptoms disappear within minutes, call 911 or go to the emergency room immediately.
Signs & Symptoms of Stroke
Health professionals emphasize the F.A.S.T. acronym to recognize the sudden onset of symptoms:
- F – Face: One side of the face droops or is numb.
- A – Arm: One arm is weak or numb; when both arms are raised, one drifts downward.
- S – Speech: Speech is slurred or the person is unable to speak or understand.
- T – Time: Call 911 immediately if any of these symptoms are present.
A sudden, severe headache with no known cause, may be a major warning sign of a hemorrhagic stroke. Call 911 immediately.
What to Do During a Stroke
The period immediately following a stroke is known as the Golden Time. It is critical to begin receiving treatment within 3 hours of the onset of symptoms. Since some patients may still be eligible for treatment up to 4.5 hours, do not hesitate to call 911 immediately even if the three-hour window has passed. The success of stroke treatment depends entirely on ‘how quickly the patient arrives at the hospital.’ Faster intervention minimizes brain damage, and taking swift action within the Golden Time is the most decisive factor in a patient’s recovery.
Call 911 Immediately: Do not attempt to drive the person to the hospital yourself. Paramedics can begin life-saving treatment in the ambulance and will alert the hospital’s “stroke team” so they are ready the moment the patient arrives.- Note the Time: Try to identify the exact time the first symptom appeared. This is the most critical piece of information for the medical team, as it determines whether the patient can safely receive “clot-busting” medications (tPA).
- Perform the F.A.S.T. Check.
- Do not give them food or drink: Strokes can affect the ability to swallow, leading to choking or aspiration.
- Do not give them aspirin: While aspirin helps with some heart attacks, it can be fatal if the stroke is caused by a brain bleed (hemorrhagic) rather than a clot.Keep the Person Calm and Safe:
- Positioning: If the patient is conscious, lay them down in a safe location and take care to ensure an open airway. For specific instructions regarding positioning, please follow the guidance of the emergency medical technicians (EMTs) upon their arrival.
Stages of Stroke Recovery
- Acute Phase: The immediate hours following the event, focused on stopping the stroke and stabilizing the patient.
- Subacute Phase: The days and weeks following stabilization where medical teams assess damage and prevent secondary complications.
- Rehabilitation Phase: The long-term process of regaining lost skills through various therapies.
Diagnosis of Stroke
- CT Scan or MRI: To identify the location of the stroke and determine if it is caused by a clot or a bleed.
- Carotid Ultrasound: To check for fatty deposits that may have caused an ischemic stroke.
- Echocardiogram: To see if a blood clot from the heart traveled to the brain. For large blood clots, a procedure called a mechanical thrombectomy may be performed to physically remove the clot.
Treatment of Stroke
- For Ischemic Stroke: Clot-busting drugs like tPA (tissue plasminogen activator) can dissolve the clot if administered within a specific timeframe (usually 3 to 4.5 hours).
- For Hemorrhagic Stroke: Surgery may be required to repair the vessel or relieve pressure on the brain. For large blood clots, a procedure called a mechanical thrombectomy may be performed to physically remove the clot.
- Rehabilitation: Speech, physical, and occupational therapy are used to help survivors relearn motor skills and communication.
Prevention of Stroke
Managing high blood pressure is the most important step in stroke prevention. Other preventive measures include:
- Treating heart disease (especially AFib).
- Maintaining a healthy weight and diet.
- Quitting tobacco use and limiting alcohol.
Living with Stroke
Recovery from stroke continues long after leaving the hospital. Support involves home modifications (like grab bars), the use of assistive devices (like walkers), and emotional support for both survivors and families to manage the psychological impact of the event.
Support Groups for Stroke
Resources
