Yield of Hyperventilation and Other Activation Procedures in Facilitating Epileptiform Discharges During EEG

This study compared EEG recordings with and without hyperventilation to assess their role in detecting epileptiform abnormalities across 659 patients. Hyperventilation, longer recording duration, and sleep deprivation all increased the likelihood of detecting epileptiform discharges, with hyperventilation showing particular benefit in children but not adults.