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Triphasic Waves: Historical Overview of an Unresolved Mystery

2021; Lippincott Williams & Wilkins; Volume: 38; Issue: 5 Linguagem: Inglês

10.1097/wnp.0000000000000809

1537-1603

José L. Fernández‐Torre, Peter W. Kaplan,

Neurological disorders and treatments

Summary: Triphasic waves are a fascinating and mysterious EEG feature. We now have to accept that, at times, epileptiform discharges may have a blunted “triphasic morphology,” and that there may be great difficulty in distinguishing between these often similar forms. The aim of this review was to describe the evolution in our understanding of triphasic waves that has occurred regarding the pathophysiology of triphasic waves, their most frequent causes, and the diagnostic difficulties involved in interpretation and differentiation from nonconvulsive status epilepticus.