10th Annual European College of Equine Internal Medicine Congress: 2—4 November, 2017

Methods: 24-Hour ambulatory telemetric electroencephalograms were recorded from 7 adult control horses and 7 adult patients with abnormals behaviour of unknown origin or epileptic-like insults and with absence of extra cranial disease. An EEG-cap developed for horses, an amplifier and recording software (Lifelines) were used. A commercial video camera was connected to the recording laptop. For analysis the sensitivity was set at 70 microvolt/cm with a time-base of 10 s/page as starting point. The low-cut filter was set at 0.500 Hz and the high-cut at 35-70 Hz. The notch filter was 50 Hz. Abnormal activity was defined as a spike or sharp wave, a period of generalized slow wave rhythmical activity, or a generalized fast rhythmical discharge. The recording time ranged from 20.35 to 20.10 hours.