Lateralized Periodic Discharges Detected and Described via Intraoperative Neuromonitoring

Mora, Michelle; Cagle, Taylor Turnipseed; Peartree, Natalie; Ebinger, Kiara

doi:10.1080/21646821.2022.2060012

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Even with hundreds of published cases of periodic discharges on EEG, with corresponding imaging, diagnosis, and outcome, there is still much debate in human medicine about the origin and clinical implications of various PDs, and particularly whether or not treatment with anti-seizure medication is indicated ( 9 – 11 , 16 , 17 , 24 , 34 – 36 ). In human medicine, PD frequency is known to change—either increasing or decreasing ( 8 – 11 )—sliding up or down the IIC; PD waveform morphology can change—either spontaneously ( 11 ) or in response to intervention like surgery ( 37 ) or drugs ( 20 , 21 ); and PDs are frequently documented to resolve with resolution or improvement of the underlying process ( 7 , 8 , 11 , 19 , 21 ). The case examples in this report demonstrated all of these characteristics.…”

Section: Discussionmentioning

confidence: 99%

Periodic discharges in veterinary electroencephalography—A visual review

Knipe

Bush²,

Thomas³

et al. 2023

Front. Vet. Sci.

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First described in human EEG over 60 years ago, there are very few examples of periodic discharges in the veterinary literature. They are associated with a wide variety of etiologies, both intracranial and systemic, making interpretation challenging. Whether these patterns are indicative of ictal, interictal, or postictal activity is a matter of debate and may vary depending on the clinical features in an individual patient. Periodic discharges have a repeated waveform occurring at nearly regular intervals, with varying morphology of individual discharges from simple sharp waves or slow waves to more complex events. Amplitudes, frequencies, and morphologies of the discharges can fluctuate, occasionally evolving, or resolving over time. This study presents a visual review of several veterinary cases with periodic discharges on EEG similar to those described in human EEG, and discusses the current known pathophysiology of these discharges.

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