Posterior Cerebral Artery Disorders

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 6 min read
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The posterior cerebral artery (PCA) supplies blood to the back of the brain, playing a crucial role in various neurological functions. Disorders affecting this artery can lead to significant health issues. Types of Posterior Cerebral Artery Disorders Ischemic Stroke: Occurs when blood flow to the...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

The posterior cerebral artery (PCA) supplies blood to the back of the brain, playing a crucial role in various neurological functions. Disorders affecting this artery can lead to significant health issues. Types of Posterior Cerebral Artery Disorders Ischemic Stroke: Occurs when blood flow to the PCA is blocked, usually due to a clot. Hemorrhagic Stroke: Caused by a rupture of a blood vessel in the...

Key Takeaways

  • This article explains Causes of Posterior Cerebral Artery Disorders in simple medical language.
  • This article explains Symptoms of Posterior Cerebral Artery Disorders in simple medical language.
  • This article explains Diagnostic Tests for Posterior Cerebral Artery Disorders in simple medical language.
  • This article explains Non-Pharmacological Treatments for Posterior Cerebral Artery Disorders in simple medical language.
Educational health guideWritten for patient understanding and clinical awareness.
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Emergency safety firstUrgent warning signs are highlighted below.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • Fever with very low white blood cells or known immune suppression.
  • Unusual bruising, persistent bleeding, black stools, or severe weakness.
  • Shortness of breath, fainting, confusion, or rapidly worsening fatigue.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

The posterior cerebral artery (PCA) supplies blood to the back of the brain, playing a crucial role in various neurological functions. Disorders affecting this artery can lead to significant health issues.

Types of Posterior Cerebral Artery Disorders

  1. Ischemic Stroke: Occurs when blood flow to the PCA is blocked, usually due to a clot.
  2. Hemorrhagic Stroke: Caused by a rupture of a blood vessel in the PCA, leading to bleeding in the brain.
  3. Aneurysm: Weakness in a blood vessel wall that can balloon and potentially rupture.
  4. Arteriovenous Malformation (AVM): Abnormal connections between arteries and veins in the PCA region.
  5. PCA Infarction: Tissue damage in the PCA territory due to lack of blood supply.
  6. PCA Atherosclerosis: Build-up of plaque in the PCA arteries, restricting blood flow.

Causes of Posterior Cerebral Artery Disorders

Posterior cerebral artery disorders can be caused by:

  1. Atherosclerosis: Build-up of fatty deposits in arteries.
  2. High Blood Pressure: Increases the risk of artery damage and clots.
  3. insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">Diabetes: Affects blood vessel health and circulation.
  4. Smoking: Damages blood vessels and increases clotting risk.
  5. Genetic Factors: Family history of stroke or vascular conditions.
  6. Age: Risk increases with older age.
  7. Obesity: Linked to higher blood pressure and insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes.
  8. Sedentary Lifestyle: Lack of exercise can contribute to vascular health issues.
  9. Drug Abuse: Particularly substances that affect blood pressure and circulation.
  10. Trauma: Physical injury leading to vascular damage.

Symptoms of Posterior Cerebral Artery Disorders

Symptoms vary based on the specific disorder but may include:

  1. Vision Changes: Blurriness, double vision, or loss of vision.
  2. Weakness or Numbness: Especially on one side of the body.
  3. Dizziness or Vertigo: Problems with balance and coordination.
  4. Headaches: Often severe and sudden.
  5. Speech Difficulties: Slurred speech or difficulty finding words.
  6. Confusion or Memory Loss: Especially after a stroke.
  7. Seizures: Abnormal electrical activity in the brain.
  8. Behavioral Changes: Sudden mood swings or personality changes.
  9. Loss of Consciousness: In severe cases, due to bleeding or stroke.
  10. Nausea and Vomiting: Sometimes associated with acute strokes.

Diagnostic Tests for Posterior Cerebral Artery Disorders

  1. MRI (Magnetic Resonance Imaging): Detailed images of the brain to identify strokes or structural abnormalities.
  2. CT (Computed Tomography) Scan: Quick imaging to detect bleeding or blockages.
  3. Angiography: X-ray imaging of blood vessels after injecting contrast dye.
  4. Ultrasound: Used to assess blood flow and detect clots or narrowing.
  5. Electroencephalogram (EEG): Measures brain activity, useful for detecting seizures.
  6. Blood Tests: Check for risk factors like cholesterol levels and clotting factors.
  7. Lumbar Puncture: Collects cerebrospinal fluid to check for bleeding or infection.

Non-Pharmacological Treatments for Posterior Cerebral Artery Disorders

  1. Physical Therapy: Helps regain strength and mobility after a stroke.
  2. Speech Therapy: Improves communication skills affected by stroke.
  3. Occupational Therapy: Assists in adapting to daily tasks post-stroke.
  4. Dietary Changes: Emphasizes a heart-healthy diet to reduce stroke risk.
  5. Smoking Cessation Programs: Support to quit smoking and improve vascular health.
  6. Weight Management: Helps control blood pressure and insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes.
  7. Exercise Programs: Tailored to improve cardiovascular fitness.
  8. Stress Management: Techniques to lower stress levels and blood pressure.
  9. Cognitive Behavioral Therapy (CBT): Addresses depression and anxiety post-stroke.
  10. Support Groups: Provides emotional support and shared experiences.

Drugs Used in Treatment of Posterior Cerebral Artery Disorders

  1. Antiplatelet Agents: Prevents blood clot formation (e.g., Aspirin, Clopidogrel).
  2. Anticoagulants: Reduces blood clotting (e.g., Warfarin, Heparin).
  3. Thrombolytics: Dissolves blood clots during acute stroke (e.g., Alteplase).
  4. Antihypertensives: Controls high blood pressure (e.g., Amlodipine, Lisinopril).
  5. Statins: Lowers cholesterol levels to reduce atherosclerosis risk (e.g., Atorvastatin).
  6. Anticonvulsants: Controls seizures (e.g., Phenytoin, Valproic Acid).
  7. Pain Medications: Relief from headaches or post-stroke pain (e.g., Acetaminophen).
  8. Antidepressants: Treats depression and mood disorders post-stroke (e.g., Sertraline).
  9. Anti-anxiety Medications: Manages anxiety symptoms (e.g., Diazepam).
  10. Vasodilators: Improves blood flow (e.g., Nitroglycerin).

Surgeries for Posterior Cerebral Artery Disorders

  1. Carotid Endarterectomy: Removes plaque from carotid arteries to prevent stroke.
  2. Endovascular Procedures: Minimally invasive techniques to repair aneurysms or AVMs.
  3. Craniotomy: Opens the skull to remove clots or repair blood vessels.
  4. Coiling or Clipping: Treats aneurysms to prevent rupture.
  5. Angioplasty and Stenting: Opens narrowed arteries to improve blood flow.

Prevention of Posterior Cerebral Artery Disorders

  1. Control Blood Pressure: Regular monitoring and medication adherence.
  2. Manage Diabetes: Maintain stable blood sugar levels.
  3. Quit Smoking: Eliminates a major risk factor.
  4. Healthy Diet: Low in saturated fats and rich in fruits, vegetables, and whole grains.
  5. Regular Exercise: Improves cardiovascular health and circulation.
  6. Limit Alcohol Consumption: Moderation to reduce stroke risk.
  7. Weight Control: Maintain a healthy weight to lower diabetes and hypertension risk.
  8. Manage Stress: Techniques like meditation or yoga.
  9. Regular Medical Check-ups: Monitor blood pressure, cholesterol, and overall health.
  10. Awareness of Family History: Genetic predisposition to stroke.

When to See a Doctor

  1. Sudden Onset Symptoms: Such as vision changes, weakness, or speech difficulties.
  2. Persistent Headaches: Especially if severe or accompanied by other symptoms.
  3. Unexplained Dizziness or Loss of Balance: Especially if recurrent.
  4. Risk Factors Present: Such as high blood pressure, diabetes, or smoking history.
  5. Post-Stroke Recovery: Follow-up care and rehabilitation are crucial.

 

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.

 

Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Orthopedic / spine specialist, physical medicine doctor, or qualified clinician
Tests to discuss with doctor
  • Neurological examination for leg power, sensation, reflexes, and straight leg raise
  • X-ray only if injury, deformity, long-lasting pain, or doctor suspects bone problem
  • MRI discussion if severe nerve symptoms, weakness, bladder/bowel problem, or persistent symptoms
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?
  • Is physiotherapy, posture correction, or activity modification needed?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Posterior Cerebral Artery Disorders

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

RX Patient Help

Ask a health question safely

Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Is this article a replacement for a doctor?

No. It is educational content only. Patients should consult a qualified clinician for diagnosis and treatment.

When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

References

Add references, clinical guidelines, textbooks, journal articles, or trusted medical sources here. You can edit this area from the RX Article Professional Blocks panel.

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