EEG and epilepsy in the elderly compared to a younger group.

J R Hughes, M L Zialcita
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引用次数: 21

Abstract

EEG in epilepsy in the elderly (onset > 60 yrs) was investigated (161 patients--302 EEGs) and was compared to a group of younger patients (onset 20-59 yrs) matched for sex ratio (also 161 patients--296 EEGs). In the elderly, the frequency of the background rhythm was decreased, as was the rhythmicity and amplitude. Complex partial attacks were twice as often seen in the older group, but generalized tonic-clonic seizures were more than three times as often in the younger group. The major etiology in the elderly was cerebrovascular disease, but brain tumors were found in nearly one quarter, while head injury, drug abuse, and AVM were more often seen in the younger patients. The first EEG was positive for epileptiform activity in 83%, later at 92-93% in both groups, emphasizing adequate sleep records. Although temporal lobe abnormalities were most often seen, frontal lobe discharges and slow waves were significantly more often noted in the elderly. As an example of the prominence of epileptiform activity in some elderly, PLEDs and very many discharges were seen mainly in the older group, which less often showed only rare discharges.

老年人的脑电图和癫痫与年轻人的比较。
研究了老年癫痫患者(发病> 60岁)的脑电图(161例-302个脑电图),并与一组性别比例匹配的年轻患者(发病20-59岁)(161例-296个脑电图)进行了比较。在老年人中,背景节奏的频率降低,节奏性和振幅也降低。复杂的部分性发作是老年组的两倍,但全身性强直阵挛发作是年轻组的三倍多。老年人的主要病因是脑血管疾病,但近四分之一的人发现脑肿瘤,而头部损伤、药物滥用和AVM在年轻患者中更常见。第一次脑电图呈癫痫样活动阳性的比例为83%,之后两组均为92-93%,强调了充足的睡眠记录。虽然颞叶异常最常见,但额叶放电和慢波明显更常见于老年人。作为一些老年人癫痫样活动突出的一个例子,PLEDs和非常多的放电主要出现在老年人组,很少出现只有罕见的放电。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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