The EEG is also helpful in assessing the risk of seizure recurrence. 7 Various maneuvers increase the likelihood of recording epileptiform discharges, including sleep deprivation before the study, recording a portion of the EEG as the patient sleeps, recording the EEG as the patient hyperventilates for several minutes, and subjecting the patient to stroboscopic photic stimulation during the study.
Multiple recordings increase the diagnostic yield of the EEG while approximately 30 to 50 percent of patients with epilepsy demonstrate epileptiform abnormalities on the first EEG, the yield increases to 60 to 90 percent with repeated recordings.
0 kommentar(er)
