EEG Abnormal Waveforms - StatPearls - NCBI Bookshelf
May 1, 2023 · Generalized periodic discharges (GPDs): GPDs are synchronous, repetitive discharges that occur at regular intervals. The inter-discharge intervals are usually quantifiable. The morphology of each discharge is similar.
Generalized periodic discharges: Pathophysiology and clinical ...
Aug 1, 2015 · Generalized periodic discharges (GPDs) are commonly encountered in metabolic encephalopathy and cerebral hypoxia/ischemia. The clinical significance of this EEG pattern is indistinct, and it is unclear whether treatment with antiepileptic drugs is beneficial.
EEG interpretation and ictal-interictal continuum
Jun 13, 2022 · Triphasic waves are a specific subtype of generalized periodic discharge with the following characteristics: Three phases (negative – positive – negative), each of longer duration than the preceding wave. Frontal predominance.
Generalized periodic discharges | Neurology
Oct 3, 2012 · Generalized periodic epileptiform discharges: etiologies, relationship to status epilepticus, and prognosis. J Clin Neurophysiol 1999; 16:51–58. 4. Chong DJ, Hirsch LJ. Which EEG patterns warrant treatment in the critically ill? Reviewing the evidence for treatment of periodic epileptiform discharges and related patterns.
Generalized periodic discharges (GPDs) with triphasic morphology are an electroencephalographic (EEG) pattern traditionally associat-ed with encephalopathy and coma, although they have been observed in a wide array of neurological disorders.
Generalized Periodic Discharges: A Topical Review - PubMed
Generalized periodic discharges that are associated with nonconvulsive status epilepticus are treated with antiseizure drugs, while others are not necessarily aggressively treated. Prognosis for most patients with GPDs is guarded, although this is also dependent on the underlying etiology.
Clinical outcomes in patients with generalized periodic discharges ...
Oct 15, 2016 · Generalized periodic discharges (GPDs) are frequently identified in the EEGs of hospitalized patients but their prognostic significance remains unclear. We retrospectively reviewed clinical data in patients with GPDs to elucidate factors associated with in …
Generalized periodic discharges in the critically ill - Neurology
Oct 3, 2012 · Generalized periodic discharges are increasingly recognized on continuous EEG monitoring, but their relationship to seizures and prognosis remains unclear. All adults with generalized periodic discharges from 1996 to 2006 were matched 1:1 to controls by age, etiology, and level of consciousness.
Periodic Discharges: How to Approach, When to Treat - PubMed
Periodic discharges are a fairly common EEG pattern and often present a therapeutic challenge when encountered. We will consider five associations of these periodic discharges: ictal, acute seizures, epileptogenic, injurious, and epiphenomenal.
Temporal dynamics of triphasic waves and generalized periodic ...
Apr 25, 2023 · To quantitatively compare triphasic waves and generalized periodic discharges on scalp EEG. Distinguishing epileptiform generalized periodic discharges (GPDs) and triphasic waves (TWs) can be challenging (Foreman et al., 2016), and consequential since groups may benefit from anti-seizure medications differently.