Posterior Commissure Strokes

In the realm of strokes, posterior commissure strokes can have significant impacts on individuals’ lives. Understanding what they are, their causes, symptoms, and treatments is crucial for both patients and caregivers. In this article, we’ll explore posterior commissure strokes in simple terms, covering everything from their definition to prevention.

A posterior commissure stroke happens when there’s a blockage or bleeding in the blood vessels supplying the posterior commissure region of the brain. The posterior commissure is a tiny but essential part of the brain involved in various functions like vision and coordination.


Posterior commissure strokes can be ischemic or hemorrhagic. Ischemic strokes occur when a blood clot blocks an artery, while hemorrhagic strokes occur when a blood vessel bursts and bleeds into the brain.


There are numerous causes of posterior commissure strokes, including:

  1. High blood pressure
  2. High cholesterol levels
  3. Diabetes
  4. Smoking
  5. Obesity
  6. Sedentary lifestyle
  7. Family history of strokes
  8. Excessive alcohol consumption
  9. Atrial fibrillation (an irregular heartbeat)
  10. Blood clotting disorders
  11. Aging
  12. Drug abuse (especially cocaine)
  13. Certain medications
  14. Sleep apnea
  15. Cardiovascular diseases
  16. Poor diet
  17. Stress
  18. Head or neck injuries
  19. Inflammation of blood vessels (vasculitis)
  20. Radiation therapy to the head and neck region


Identifying the symptoms of a posterior commissure stroke is crucial for seeking prompt medical attention. Common symptoms include:

  1. Sudden numbness or weakness in the face, arm, or leg, especially on one side of the body
  2. Difficulty speaking or understanding speech
  3. Confusion
  4. Trouble seeing in one or both eyes
  5. Dizziness or loss of balance
  6. Severe headache with no known cause
  7. Trouble walking
  8. Loss of coordination or balance
  9. Difficulty swallowing
  10. Nausea or vomiting
  11. Loss of consciousness
  12. Sudden and severe fatigue
  13. Trouble with memory or reasoning
  14. Changes in mood or personality
  15. Difficulty with fine motor skills
  16. Sensory disturbances, such as tingling or numbness
  17. Partial or complete paralysis
  18. Blurred or double vision
  19. Slurred speech
  20. Loss of bladder or bowel control
You Might Also Read  Ischemic Posterior Choroidal Artery Stroke

Diagnostic Tests:

Diagnosing a posterior commissure stroke typically involves a combination of history-taking, physical examinations, and diagnostic tests. These may include:

  1. Medical history review to assess risk factors and symptoms
  2. Physical examination to evaluate neurological function, vision, coordination, and strength
  3. Imaging tests such as CT scans, MRI scans, or angiography to visualize the brain and blood vessels and identify any blockages or bleeding
  4. Blood tests to check for cholesterol levels, blood sugar levels, and clotting disorders
  5. Electrocardiogram (ECG) to monitor heart rhythm and detect irregularities
  6. Echocardiogram to assess heart function and structure
  7. Carotid ultrasound to evaluate blood flow in the carotid arteries in the neck
  8. Lumbar puncture (spinal tap) to analyze cerebrospinal fluid for signs of bleeding or infection

Treatments (Non-Pharmacological):

Treating a posterior commissure stroke involves various non-pharmacological approaches aimed at restoring blood flow to the affected area, preventing further damage, and promoting recovery. These may include:

  1. Emergency medical care to stabilize the patient and ensure adequate oxygen and blood flow to the brain
  2. Mechanical thrombectomy to remove blood clots blocking blood vessels
  3. Clot-busting medications (thrombolytics) such as tissue plasminogen activator (tPA) to dissolve blood clots and restore blood flow
  4. Antiplatelet medications like aspirin to prevent blood clots from forming
  5. Anticoagulant medications like heparin or warfarin to prevent blood clots from getting bigger
  6. Rehabilitation therapies including physical therapy, occupational therapy, and speech therapy to regain lost abilities and improve quality of life
  7. Lifestyle modifications such as quitting smoking, adopting a healthy diet, exercising regularly, managing stress, and controlling underlying conditions like high blood pressure and diabetes
You Might Also Read  Visual Perception Disorder


Several drugs may be prescribed to manage and prevent complications associated with posterior commissure strokes, including:

  1. Aspirin
  2. Clopidogrel (Plavix)
  3. Tissue plasminogen activator (tPA)
  4. Heparin
  5. Warfarin (Coumadin)
  6. Rivaroxaban (Xarelto)
  7. Apixaban (Eliquis)
  8. Dabigatran (Pradaxa)
  9. Statins (e.g., atorvastatin, simvastatin) to lower cholesterol levels
  10. Antihypertensive medications to control high blood pressure


In some cases, surgical interventions may be necessary to treat complications or prevent future strokes. These may include:

  1. Carotid endarterectomy to remove plaque buildup from the carotid arteries
  2. Angioplasty and stenting to widen narrowed or blocked blood vessels
  3. Aneurysm clipping or coiling to repair or prevent the rupture of brain aneurysms
  4. Craniotomy to remove blood clots or repair damaged blood vessels
  5. Ventriculostomy to drain excess cerebrospinal fluid in cases of hydrocephalus


Preventing posterior commissure strokes involves adopting a healthy lifestyle and managing risk factors. Here are some preventive measures:

  1. Maintain a healthy weight
  2. Eat a balanced diet rich in fruits, vegetables, whole grains, and lean proteins
  3. Exercise regularly
  4. Quit smoking and avoid secondhand smoke
  5. Limit alcohol consumption
  6. Manage stress through relaxation techniques like yoga or meditation
  7. Control high blood pressure, cholesterol levels, and diabetes through medication and lifestyle modifications
  8. Get regular check-ups and screenings for cardiovascular risk factors
  9. Follow your doctor’s recommendations regarding medications and treatments
  10. Be aware of the signs and symptoms of strokes and seek immediate medical attention if they occur

When to See Doctors:

If you or someone you know experiences symptoms suggestive of a posterior commissure stroke, it’s essential to seek medical help immediately. Time is of the essence when dealing with strokes, as prompt treatment can minimize damage and improve outcomes. Don’t wait or ignore symptoms, even if they seem mild or transient. Call emergency services or go to the nearest hospital as soon as possible for evaluation and treatment.

You Might Also Read  Heschl Gyrus Disorders


Posterior commissure strokes can have serious consequences, but understanding their causes, symptoms, and treatments can empower individuals to take proactive steps to prevent and manage them. By adopting a healthy lifestyle, managing risk factors, and seeking prompt medical attention when needed, you can reduce your risk of experiencing a stroke and improve your overall health and well-being. Remember, every minute counts when it comes to strokes, so don’t hesitate to act if you suspect that you or someone else is having one.


Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, geological location, weather and previous medical  history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. Thank you for giving your valuable time to read the article.