What Causes a Stroke?

Kristina Van Winkle • September 6, 2022

What Causes a Stroke?

Stroke is the most common symptom of cerebrovascular disease.


Cerebrovascular disease is a term used to refer to any "disease" affecting the brain's blood vessels. It includes all conditions in which any part of the brain is deprived of blood (and oxygen) either temporarily or permanently. The blood vessels may be malformed, weakened, narrowed, or blocked. 


When any disease process leads to the complete blockage of a blood vessel in the brain, a stroke (also called a cerebrovascular accident or CVA) occurs.


Strokes are the fifth leading cause of death in the United States and the leading cause of disability in adults.


As with cerebrovascular diseases, scientists and doctors classify strokes as either ischemic or hemorrhagic. 




Ischemic Strokes



An ischemic stroke occurs when blood flow is temporarily or permanently blocked in the brain. 


Approximately 85% of all strokes are ischemic.


Things that may cause a narrowing or complete blockage include:


  • Atherosclerosis: plaque build-up on the walls of the blood vessels 
  • Clots: blood clots form and block the blood vessel
  • Embolism: a piece of plaque breaks off from somewhere else and travels to a new location where it blocks the blood vessel
  • Thrombosis: a blood clot forms and blocks the blood vessel
  • High blood pressure
  • Clotting disorders
  • Illegal drug use: this is a common cause of stroke in young people
  • Moyamoya disease: can cause strokes in children and young people
  • Malformations of the blood vessels




Hemorrhagic Strokes



Hemorrhagic strokes are less common than ischemic strokes and occur when a blood vessel ruptures and blood leaks into the brain tissue. These can be caused by:


  • Uncontrolled high blood pressure
  • An aneurysm that ruptures
  • Malformations of the blood vessels
  • Medication used to prevent blood clots
  • Illicit drug use, especially cocaine
  • Amyloid angiopathy
  • Cancer that spreads to the brain



Tranischemic Attack



A trans ischemic attack (TIA) is a temporary stroke. The blood flow is stopped long enough for damage to begin but restored without permanent damage. 


Causes and symptoms are the same as those for strokes, but the symptoms clear up with no lasting problems. Treat TIAs like strokes; you should go to a hospital even if symptoms clear up.




A stroke is a medical emergency.


It is critical to recognize and treat stroke quickly as possible to reduce disability or death. Call 9-1-1 immediately if you or someone around you is experiencing symptoms of a stroke.


Remember: FAST

  • Face droops, or their smile is uneven
  • Arm numbness or weakness that occurs suddenly
  • Speech problems, such as sudden difficulty speaking or understanding someone else
  • Time to call 9-1-1!


Do not try to bring the person to the hospital, and DO NOT attempt to drive yourself to the hospital if you have any of these symptoms. Strokes can get worse very quickly; call 9-1-1, and emergency medical personnel will be able to care for you and monitor your situation on the way to the hospital. 


Even if the symptoms stop before an ambulance arrives, the person should still go to a hospital. A TIA is a sign that a stroke could happen at any time.




Need a medical writer?


Contact me!





 Thank you for reading my blog!





Sources:


American Association of Neurological Surgeons. (n.d.). Cerebrovascular Disease. https://www.aans.org/Patients/Neurosurgical-Conditions-and-Treatments/Cerebrovascular-Disease


Khaku, A. S. (2021). Cerebrovascular Disease. https://www.ncbi.nlm.nih.gov/books/NBK430927/


Khaku, A. S. (2021). Cerebral Vascular Disease (Nursing). https://www.ncbi.nlm.nih.gov/books/NBK568674/


Northwestern Medicine. (n.d.) Understanding Stroke and Cerebrovascular Disease. https://www.nm.org/conditions-and-care-areas/neurosciences/comprehensive-stroke-centers/understanding-stroke-and-cerebrovascular-disease

 



By Kristina Van Winkle October 7, 2024
A Comparative Overview for Pain Management Steroid injections and Platelet-Rich Plasma (PRP) injections are two commonly used pain management treatments. While both aim to alleviate pain and promote healing, they have different mechanisms of action and long-term effects . What Are Steroid Injections ? Corticosteroids are potent drugs used extensively across various medical fields to manage a broad spectrum of conditions, making them one of the most widely prescribed drug classes in the world. They can be administered via nearly every route, including direct injection into painful or inflamed joints. "Corticosteroids" typically refers to the class of drugs that produce glucocorticoid effects. Glucocorticoids are stress hormones that regulate numerous physiologic processes within the body. They have vasoconstrictive, immunosuppressive, and anti-inflammatory effects and play a role in metabolism. What do steroid injections treat? Corticosteroids function by suppressing the immune system and reducing inflammation within the body. They inhibit the production of the body's pro-inflammatory chemicals, leading to decreased inflammation and, consequently, pain. They are prescribed for hundreds of medical conditions, including: Allergic and autoimmune disorders Adrenocortical secretion disorders Infections and inflammation Pathologic hypoglycemia Organ and graft rejections Neurological disorders Hypercalcemia Blood disorders Skin disorders Shock What are the side effects of steroid injections? Although steroids are known to some as “wonder drugs,” they impact various bodily systems, including metabolism, water and electrolyte balance, the central nervous system, and blood cells. As a result, they are associated with many adverse side effects, especially when administered in large doses or over extended periods. Adverse effects may occur in up to 90% of individuals who take them for longer than sixty days. These side effects may include: Suppression of the hypothalamic-pituitary-adrenal axis Gastrointestinal disturbances Osteoporosis and fractures Psychiatric disturbances Carpal tunnel syndrome Cardiovascular disease Immunosuppression Cushingoid features Hyperglycemia Skin disorders Glaucoma Myopathy Cataracts Diabetes The risk of adverse side effects is particularly high when taken systemically. However, side effect occurrences vary when administered as local injections for pain management. Data indicates that steroid injections into joints and the spine can produce systemic effects that can last for weeks. When assessing the risk factors associated with steroid injections, healthcare providers must consider all types and doses of steroids the person is taking, including both oral and injectable forms. Additionally, special caution is advised for certain populations, such as those who may undergo surgery soon, postmenopausal women, and individuals with diabetes. What is Platelet-Rich Plasma (PRP) ? Platelet-rich plasma (PRP) injections use an individual's own blood to promote cellular regeneration. Through the extraction and reinjection of platelets, growth factors, and other bioactive proteins from the person's blood, PRP therapy offers long-lasting improvements, sustained pain relief, and enhanced tissue function. What do PRP injections treat? PRP injections can stimulate healthy cell growth, reduce inflammation, promote tissue repair, form new blood vessels, rejuvenate the skin and hair, and accelerate recovery after a traumatic injury. It can treat a wide range of conditions, including: Pain resulting from traumatic injury or degenerative conditions such as arthritis and chronic back pain Musculoskeletal conditions Tendinopathies and tears Compressive neuropathy Scars and stretch marks Osteochondral lesions Rheumatoid arthritis Erectile dysfunction Muscular injuries Plantar fasciitis Vaginal atrophy Osteoarthritis Epicondylitis Infertility Psoriasis Wounds Bursitis Vitiligo What are the side effects of PRP? Since PRP is derived from the person's own blood, the risk of allergic reactions or rejection is significantly lower compared to other injectables, such as steroids. PRP typically does not cause major side effects, though you may experience some soreness or bruising at the injection site. In rare cases, potential side effects may include: Tissue damage Nerve injuries Bleeding Infection Comparison of Steroid Injections and PRP Injections A study in the Journal of Orthopaedic Surgery and Research compared steroid injections with PRP injections in patients with mild to moderate symptomatic knee osteoarthritis (OA). The findings indicated that both treatments were safe and effective in improving short-term pain and functioning, with no significant differences observed. However, PRP therapy demonstrated superior outcomes in the long term, with benefits extending up to one year. Additionally, a literature review in Cureus Journal of Medical Science analyzed multiple studies comparing steroid injections with PRP in lumbar spondylosis and sacroiliac arthropathy. The review found that PRP was equally as effective, if not superior, to steroid injections in the short term. Neither treatment was associated with major complications, and there were no significant differences in minor complications between the two. The review concluded that both PRP and steroid injections are safe and effective for treating lumbar spondylosis and sacroiliac arthropathy, with some evidence that PRP may offer more benefits in the long term. Research has confirmed that both steroid and PRP therapy are valuable options for pain management and tissue healing. Steroid injections offer potent anti-inflammatory benefits that can provide immediate relief. However, their systemic side effects and limited duration of efficacy should be carefully considered, especially in high-risk populations. While PRP may take longer to show results, its long-term benefits make it an increasingly popular choice for treating various conditions. Ultimately, the choice between these treatments should be based on the specific needs of the individual patient, with careful attention to the patient's medical history. Thank you for reading the Write Shift RN blog. If you need an experienced RN writer for your health or healthcare educational content, contact me !
By Nancy Ezebuiro September 4, 2023
Salt and High Blood Pressure: Myth or Truth? Written by Nancy Ezebuiro Medium portfolio
By Summer Bagley, RN August 19, 2023
The dog days of summer have come and gone....Are you hydrated? Written by Summer Bagley, RN 
By Anthonia Okereke August 10, 2023
Benefits Of Exercise For Women Written by Anthonia Okereke
By Kristen Westphal, RN, HSN, BSN July 31, 2023
Support your loved one through their first year of nursing. Written by Kristen Westphal, RN, HSN, BSN 
By Cheri Coles July 6, 2023
How to Enjoy Life After a Mastectomy Written by Cheri Coles
By Summer Bagley, RN June 26, 2023
Is Sitting the New Smoking? written by Summer Bagley, RN
By Timilehin Olaniyan June 20, 2023
BMI and Health: Should we still bother about the number? Written by Timilehin Olaniyan
By Timilehin Olaniyan June 2, 2023
Bipolar Disorder and Light Therapy: What You Need to Know. Written by Timilehin Olaniyan
By Kolawole Olawuwo May 31, 2023
What are Herbal Supplements?  Written by Kolawole Olawuwo
More Posts
Share by: