Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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Multicenter Study Observational Study
Generalized periodic discharges and 'triphasic waves': A blinded evaluation of inter-rater agreement and clinical significance.
Generalized periodic discharges (GPDs) are associated with nonconvulsive seizures. Triphasic waves (TWs), a subtype of GPDs, have been described in relation to metabolic encephalopathy and not felt to be associated with seizures. We sought to establish the consistency of use of this descriptive term and its association with seizures. ⋯ Conventional association of 'triphasic waves' with specific clinical conditions may lead to inaccurate EEG interpretation.