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  • Title: [Clinical value of electroencephalographic monitoring in closed-circuit television (EEG-video). Analysis of 44 studies].
    Author: Lancman ME, Asconape J.
    Journal: Medicina (B Aires); 1990; 50(4):315-8. PubMed ID: 2130225.
    Abstract:
    Video-EEG is a wellknown method for diagnostic evaluation of paroxysmal clinical events, providing the physician with a close correlation between clinical signs and electroencephalographic abnormalities. It has been widely used in the diagnosis of the different forms of epilepsy. It has proved to be useful in separating epileptic from nonepileptic crisis, in the characterization of the seizure type and frequently in the localization of the seizure onset. Patients were monitored for 6 hours on a closed circuit TV-video system with simultaneous EEG recording. A second camera focusing on the EEG paper; provided a video image of the brain electrical activity. The input from both cameras were synchronized with a TV splitter, so that a simultaneous image of the patient and EEG tracing was obtained on the TV monitor. The information was stored on videocassette for repeated analysis (Fig. 1). Forty four video-EEG on 44 patients, performed between February of 1988 and August 1989 were analysed. Mean age of the population was 30.18 years, with a range of 9 months to 64 years; 28 (63.6%) were female and 16 (36.4%) were male. Thirty five studies (79.5%) were considered abnormal. In 17 cases clinical events were recorded. Ten of the clinical episodes were considered as clear cut epileptic, 2 cases were interpreted as probably epileptic, since the surface EEG findings were minimal or absent. In the other 5 cases the episodes were interpreted as non-epileptic, being the diagnosis: psychogenic episodes in 3 cases, paroxysmal dystonia in 1 case and classical migraine in 1 case.(ABSTRACT TRUNCATED AT 250 WORDS)
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