2021
Brief potentially ictal rhythmic discharges and paroxysmal fast activity as scalp electroencephalographic biomarkers of seizure activity and seizure onset zone
Yoo JY, Jetté N, Kwon C, Young J, Marcuse LV, Fields MC, Gaspard N, Hirsch LJ. Brief potentially ictal rhythmic discharges and paroxysmal fast activity as scalp electroencephalographic biomarkers of seizure activity and seizure onset zone. Epilepsia 2021, 62: 742-751. PMID: 33576500, DOI: 10.1111/epi.16822.Peer-Reviewed Original ResearchConceptsParoxysmal fast activitySeizure onset zoneIctal rhythmic dischargesClinical significanceElectrographic seizuresSeizure activityRhythmic dischargesFast activityOnset zoneUncontrolled seizure activityPosterior dominant rhythmSimilar clinical significancePatient demographicsElectroencephalographic biomarkerLocalizing signFocal slowingClinical historySeizure riskEEG backgroundPatientsAdult cohortDominant rhythmSeizuresDistinct entityEEG biomarkers
2017
Association of an Electroencephalography-Based Risk Score With Seizure Probability in Hospitalized Patients
Struck AF, Ustun B, Ruiz AR, Lee JW, LaRoche SM, Hirsch LJ, Gilmore EJ, Vlachy J, Haider HA, Rudin C, Westover MB. Association of an Electroencephalography-Based Risk Score With Seizure Probability in Hospitalized Patients. JAMA Neurology 2017, 74: 1419-1424. PMID: 29052706, PMCID: PMC5822188, DOI: 10.1001/jamaneurol.2017.2459.Peer-Reviewed Original ResearchConceptsIll patientsSeizure riskContinuous EEGRisk factorsMAIN OUTCOMEScoring systemBilateral independent periodic dischargesEpilepsy Monitoring Unit (EMU) admissionPeriodic dischargesBrief rhythmic dischargesProspective multicenter databaseSeizure risk factorsSporadic epileptiform dischargesRisk of seizuresRhythmic delta activitySimple scoring systemEligible patientsProbability of seizuresUnit admissionAcute illnessHospitalized patientsMulticenter databasePrior seizuresClinical historyClinical indicationsBrief Potentially Ictal Rhythmic Discharges [B(I)RDs] in Noncritically Ill Adults
Yoo JY, Marcuse LV, Fields MC, Rosengard JL, Traversa MV, Gaspard N, Hirsch LJ. Brief Potentially Ictal Rhythmic Discharges [B(I)RDs] in Noncritically Ill Adults. Journal Of Clinical Neurophysiology 2017, 34: 222-229. PMID: 28463933, DOI: 10.1097/wnp.0000000000000357.Peer-Reviewed Original ResearchConceptsIctal rhythmic dischargesIll adultsRhythmic dischargesSeizure onset areaAdult patientsElectrographic characteristicsStatus epilepticusAcute findingsIll patientsRefractory epilepsyClinical historySeizure onsetClinical significanceEpileptiform dischargesAmbulatory settingPatientsBenign patternControl groupEpilepsyRhythmic activityOnset areaAlpha activityAdultsBrief runsEEG recordings