Electroencephalographic Studies in Idiopathic Epilepsy, Idiopathic Syncope and Related Disorders in a U. S. Naval Hospital

Rossen, Ralph

doi:10.1176/ajp.104.6.391

Cited by 8 publications

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“…Thirty-seven percent of seizure patients in a general neurologic setting had positive provocation tests. Previous investigations of the frequency of NES in selected epilepsy populations have varied widely, from 10 to 20% in patients with intractable seizures (Krumholz and Niedermeyer, 1983;Lesser et al, 1983) to 44% in a group of Navy personnel admitted with seizures (Rossen, 1947). Our study suggests that NES are also common in a general seizure population, as our patients were from a city hospital and a VA hospital, not a comprehensive epilepsy center.…”

Section: Discussionmentioning

confidence: 47%

“…Patients with NES are relatively common in any neurologic setting. Occurrence of NES has been estimated as ~2 0 % in an outpatient epilepsy population (Krumholz and Niedermeyer, 1983;Volow and Durham, 1986) and as 44% in patients admitted with a possible convulsive disorder (Rossen 1947). Because G60% of such patients also have true epileptic seizures (Krumholz and Niedermeyer, 1983;Lelliott and Fenwick, 1991;Ozkara and Dreifuss, 1993), the presence of concurrent NES may be masked, making diagnosis and treatment more difficult.…”

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confidence: 99%

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Provocation of Nonepileptic Seizures by Suggestion in a General Seizure Population

et al. 1994

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Nonepileptic seizures (NES) are common and are often diagnosed at epilepsy centers by video-EEG recording of both spontaneous and suggestion-induced episodes, but no study has evaluated provocative testing in a general seizure population. We studied consecutive patients with a tentative diagnosis of epilepsy using saline provocation during video-EEG recording, suggesting that this could produce a typical seizure. Of 52 patients, 40% had no response, 23% had responses unlike their seizures, and 37% had typical episodes (positive test). Patients whose usual episodes resembled complex partial seizures (CPS) were more likely to have NES than were patients with a history of generalized tonic-clonic seizures (GTC). Of patients with positive provocations, the primary physician predicted NES in 68% of cases. This preliminary study suggests that NES are frequent in a general neurology setting, and that saline provocation is a sensitive method of identifying NES.

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confidence: 47%

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confidence: 99%

Provocation of Nonepileptic Seizures by Suggestion in a General Seizure Population

et al. 1994

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Hysterical seizures: Suggestion as a provocative EEG test

Cohen

Suter

1982

Annals of Neurology

125

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We studied 57 patients with poorly controlled or atypical seizures to identify hysterical attacks with a provocative test consisting of initiation and termination of an attack with suggestion and saline injection during electroencephalographic (EEG) monitoring. Using this method, we diagnosed 48 patients as having hysterical attacks. Three additional patients had spontaneous hysterical attacks during routine recordings. Of the 51 patients with hysterical attacks, 78% were female. Two-thirds of the patients were between the ages of 20 and 35 years. Thirty-two patients had taken anticonvulsants before the study. Each patient's hysterical attack, aura, and postictum was stereotyped, and the 6 patients subject to both hysterical and organic seizures described the two types of attacks as different stereotyped behaviors. Tongue laceration, urinary incontinence, and postictal confusion were common. Twelve patients had evidence of past or present neurological disease. Abnormal EEGs were recorded in 37% but only 12% had spike or spike and wave discharges. The provocative EEG test employing saline and suggestion is a useful tool in the diagnosis of hysterical "seizures."

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Neurophysiologische Untersuchungsmethoden

Jung¹

1953

Neurologie

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Electroencephalographic Studies in Idiopathic Epilepsy, Idiopathic Syncope and Related Disorders in a U. S. Naval Hospital

Cited by 8 publications

References 0 publications

Provocation of Nonepileptic Seizures by Suggestion in a General Seizure Population

Provocation of Nonepileptic Seizures by Suggestion in a General Seizure Population

Hysterical seizures: Suggestion as a provocative EEG test

Neurophysiologische Untersuchungsmethoden

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