wicket spikes
Benign EEG variant resembling epileptiform discharges but representing normal temporal lobe activity in drowsiness.
Full Definition
Wicket spikes are benign EEG variants that appear as arciform (arch-shaped) sharp transients occurring in the temporal regions, particularly during drowsiness and light sleep. These waveforms have a characteristic wicket-like morphology with a sharp ascending and descending limb, occurring in brief runs or trains. While they may superficially resemble epileptiform discharges, wicket spikes are considered normal variants and are not associated with seizure disorders. They typically occur in adults and elderly patients and may be more prominent unilaterally. Recognition of this benign pattern prevents misdiagnosis of epilepsy.
Usage
Usage note: Critical to distinguish from pathological sharp waves to avoid misdiagnosis of epilepsy.
In Context
- "The left temporal sharp transients were consistent with wicket spikes rather than epileptiform activity." — EEG interpretation
- "Wicket spikes in drowsiness were noted bilaterally but more prominent on the right." — Routine EEG report