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Berry aneurysm
- 1. Berry Aneurysm Raju RajShakya PDCH, 20th Batch Roll No. : 27
- 3. • Aneurysma (greekfor dilation) • An aneurysm is an outward bulging, like a bubble or an inflated balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. • Blood vessels dilates about one and a half times larger than the normal diameter of the blood vessel. • Commonly takes place in: aorta, femoral, iliac and cerebral arteries • Very rare in veins
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- 5. Berry Aneurysm • Athin walled outpouching at arterial branch points along the Circle of Willis. • The Circle of Willis is a circulatory anastomosis that supplies blood to the brain and surrounding structures.
- 6. • Most commontype of intracranial aneurysm. • Ruptured Berry aneurysm is the 4th most common cerebrovascular disorder. • The annual rate of rupture is approximately 8 – 10 per 100,000 people. • Ruptured brain aneurysms are fatal in about 40% of cases. • Of those who survive, about 66% suffer some permanent neurological deficit.
- 7. Morphology of berryaneurysm • It appears bright red, shiny surface and a thin translucent wall.
- 8. Sites of Berryaneurysm
- 9. Risk factors • Smoking •High blood pressure (hypertension) • Strong family history of brain aneurysms (familial aneurysms) • Age (over 40)
- 10. Risk factors contd. •Gender: women have an increased risk of aneurysms • Race: people of color have an increased risk of ruptured aneurysms • Other disorders: Ehlers-Danlos syndrome, autosomal dominant polycystic kidney disease, Marfan syndrome, and fibromuscular dysplasia • Congenital abnormality in the artery • Drug use, particularly cocaine • Excessive alcohol use • Infection • Severe head trauma
- 11. Symptoms of unrupturedBerry aneurysm • blurred or double vision, • a drooping eyelid, • a dilated pupil, • weakness and/or numbness, or pain above and behind the eye. • If you experience these symptoms seek prompt medical attention. Unruptured aneurysms rarely cause chronic headaches.
- 12. Rupture of Berryaneurysm • Probability of rupture increases with the size of the lesion; aneurysms greater than 10mm have high risk. • Rupture can occur at any time but is often after acute increase in intracranial pressure such as while straining stool or sexual orgasms.
- 13. Rupture of Berryaneurysm • Blood under arterial pressure is forced into subarachnoid space and patients are stricken with sudden and painful headache and rapidly lose unconsciousness.
- 15. Symptoms of rupturedBerry aneurysm • Nausea/vomiting • Stiff neck • Blurred or double vision • Sensitivity to light • Seizure • A drooping eyelid • A dilated pupil • Pain above and behind the eye • Loss of consciousness • Confusion • Weakness and/or numbness
- 16. Complications of rupturedBerry aneurysm • Subarachnoid hemorrhage • Death • Several neurologic deficits • Rebleeding leading to Hydrocephalous
- 18. Diagnosis • CT- Scan CTscansho wing a ruptured Berry aneurysm.
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- 22. Reference • https://bafound.org/about-brain-aneurysms/brain-aneurysm-ba • https://www.youtube.com/watch?v=0v55qpYP_Uo •https://www.google.com • Cotran, Kumar, Collins. The central nervous system. In, Robbins Pathologic Basis of Disease, 6th edition. Thomson press(I) Ltd. Noida, India.
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