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三叉神經痛如何分類?

Posted By vickong pun     July 5, 2021    

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三叉神經痛如何分類?

  三叉神經痛如何分類?三叉神經共分爲上支(眼支),中支(上颌支)及下支(下頷支), 而以中、下支最易受到影響。
三叉神經痛是指三叉神經分布區域 內出現陣發性電擊祥劇烈疼痛,疼痛曆時數秒至數分鍾?間歇期無 症狀。
疼痛可由于口腔或顔面部刺激引起。
以中年人多見,多爲 單側。
三叉神經痛可分爲原發性(症狀性)三又神經痛和繼發性三 叉神經痛兩大類.其中原發性三叉神經痛較常見。


(1) 原發性三叉神經痛:是指找不到確切病因的三又神經痛, 可能是由于供血血管的硬化並壓迫神經造成,也可能是因爲腦膜 增厚、神經通過的骨孔狹窄造成壓迫引起疼痛。

(2) 繼發性三叉神經痛:是指由于腫瘤壓迫、炎症、血管畸形引 起的三叉神經痛。
此型有別于原發性的疼痛特點,常呈持續性疼 痛,並可査出三叉神經鄰近結構的病變及體征? H.三叉神經痛的症狀有哪些?三叉神經痛的臨床特點爲驟然發作,無任何先兆.多爲q側。
發作時疼痛劇烈,如刀割、電擊一樣?持續數秒至1?2分鍾.常伴有面肌抽搐、流淚、流誕、面潮紅、結膜充血等症狀,隨若病情的加 重.間歐期愈來愈短,發作愈加頻繁,經過一次強烈的疼痛剌激,會 使病人精神異常緊張.終身難忘,造成極大的痛苦.

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