三叉神经痛.ppt

关于三叉神经痛
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一、概 述
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头面部浅感觉的传导路
头面部 周围突 中枢突
浅感觉感受器 三叉神经节 三叉神经根
脑桥三叉N脑桥核（传导触觉）
脑桥
延髓三叉神经脊束核（传导痛温觉）
三叉丘系 背侧丘脑腹后内侧核 丘脑皮质束
内囊后肢 中央后回下1/3
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Clinic & Pathology of TN
A sharp, severe, shooting pain
It usually comes and goes
Affect adults of any age, although some types are more common after middle age.
Might be caused by irritation or damage to a nerve, although the cause of the irritation is often not known. Irritation could be caused by
An infection such as tooth decay
Herpes zoster virus (shingles)
Nasal infections
Eye strain
Systemic diseases
Arthritis
Exposure to cold
A pinched nerve
Injury
Poor diet
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Diagnosis
Take a complete medical history and perform a physical examination basing upon the location of your pain and its characteristic symptoms
Look for an underlying cause of your symptoms
Facial pain- jaw, teeth, or sinuses
Check whether a tumor or aneurysm is putting pressure on a nerve
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Therapies
Agents -Antiseizure drugs
carbamazepine
Phenytoin
Procedures to deaden the nerve with gamma rays, radio frequency waves, or glycerol injections
The nerve can also be cut or permanently destroyed
Surgery to free the nerve
Alternative treatments
B-complex vitamin
Acupuncture
Herbal remedies
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Self-care tips
To avoid attacks if you know what triggers them
Avoid very cold or very hot food and drinks
Don’t chew your food on the side that is painful
Don’t eat extremely hard or crunchy foods
Avoid splashing your face with very hot or cold water when washing
Rinse your mouth with water after every meal instead of using a toothbrush
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二、分类
分为原发性、继发性三叉神经痛
原发性三叉神经痛无明显原因，由三叉神经本身的潜在病变引起，检查无神经系统体征，部分为邻近正常血管压迫所致
继发性三叉神经痛源于三叉神经节邻近组织病变
桥小脑角肿瘤
三叉神经根或半月神经节部位的肿瘤
血管畸形
动脉瘤
蛛网膜炎等
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