2024
Cyclic Alternating EEG Patterns: From Sleep to Encephalopathy
Misirocchi F, Mutti C, Hirsch L, Parrino L, Florindo I. Cyclic Alternating EEG Patterns: From Sleep to Encephalopathy. Journal Of Clinical Neurophysiology 2024, 41: 485-494. PMID: 39186585, DOI: 10.1097/wnp.0000000000001082.Peer-Reviewed Original ResearchConceptsCyclic alternating patternStandardized Critical Care EEG TerminologyCritical care EEG terminologyNon-rapid eye movement sleepAmerican Clinical Neurophysiology SocietyEye movement sleepCritically ill patientsEEG terminologyPrognostic significancePrognostic valueMovement sleepClinical significanceImpact of confounding factorsSleep instabilityCritical care settingIll patientsClinical importanceEEG activityEEG phenomenaSedative agentsElectrophysiological biomarkersAlternating patternEncephalopathySleepCare settings
2018
Electro-clinical characteristics and prognostic significance of post anoxic myoclonus
Dhakar MB, Sivaraju A, Maciel CB, Youn TS, Gaspard N, Greer DM, Hirsch LJ, Gilmore EJ. Electro-clinical characteristics and prognostic significance of post anoxic myoclonus. Resuscitation 2018, 131: 114-120. PMID: 29964146, DOI: 10.1016/j.resuscitation.2018.06.030.Peer-Reviewed Original ResearchConceptsPost-anoxic myoclonusRecovery of consciousnessElectro-clinical characteristicsComatose cardiac arrest survivorsLow voltage backgroundRetrospective chart reviewCardiac arrest survivorsElectro-clinical correlationsTime of dischargeContinuous EEG monitoringRelevant clinical variablesChart reviewHospital dischargeSpontaneous circulationArrest survivorsBrainstem reflexesCA survivorsPrognostic implicationsPrognostic significanceClinical variablesEEG findingsMyoclonusEEG monitoringPatientsLack of recovery
2017
Cyclic seizures in critically ill patients: Clinical correlates, DC recordings and outcomes
Pinto LF, Gilmore EJ, Petroff OA, Sivaraju A, Rampal N, Hirsch LJ, Gaspard N. Cyclic seizures in critically ill patients: Clinical correlates, DC recordings and outcomes. Clinical Neurophysiology 2017, 128: 1083-1090. PMID: 28214108, DOI: 10.1016/j.clinph.2017.01.015.Peer-Reviewed Original ResearchConceptsCyclic seizuresProgressive brain injuryStatus epilepticusIll patientsClinical correlatesBrain injuryDC recordingsNon-convulsive status epilepticusEEG baselineNonconvulsive status epilepticusOlder patientsElectrographic seizuresWorse prognosisFocal onsetPoor outcomePrognostic significanceSeizure initiationPatientsInfraslow activitySeizuresCommon formEpilepticusFurther studiesPosterior regionInjury
2015
Clinical Correlates and Prognostic Significance of Lateralized Periodic Discharges in Patients Without Acute or Progressive Brain Injury
Sainju RK, Manganas LN, Gilmore EJ, Petroff OA, Rampal N, Hirsch LJ, Gaspard N. Clinical Correlates and Prognostic Significance of Lateralized Periodic Discharges in Patients Without Acute or Progressive Brain Injury. Journal Of Clinical Neurophysiology 2015, 32: 495-500. PMID: 26200591, DOI: 10.1097/wnp.0000000000000206.Peer-Reviewed Original ResearchConceptsProgressive brain injuryAcute brain injuryBrain injuryAbnormal consciousnessPeriodic dischargesClinical correlatesFunctional declineLateralized periodic dischargesRemote brain injuryOutcomes of patientsCase-control studyContinuous EEG monitoringHistory of epilepsyRadiologic evidenceHospital dischargeStatus epilepticusWorse prognosisAcute injuryPrognostic significanceWorse outcomesEEG monitoringMultivariate analysisInjuryPatientsLower likelihoodPrognostication of post-cardiac arrest coma: early clinical and electroencephalographic predictors of outcome
Sivaraju A, Gilmore EJ, Wira CR, Stevens A, Rampal N, Moeller JJ, Greer DM, Hirsch LJ, Gaspard N. Prognostication of post-cardiac arrest coma: early clinical and electroencephalographic predictors of outcome. Intensive Care Medicine 2015, 41: 1264-1272. PMID: 25940963, DOI: 10.1007/s00134-015-3834-x.Peer-Reviewed Original ResearchConceptsBetter outcomesPoor outcomeEpileptiform dischargesPost-cardiac arrest comatose patientsCritical care EEG terminologyPost-cardiac arrest comaMethodsProspective cohort studyContinuous EEG monitoringLow-voltage EEGPositive predictive valueAbsence of reactivityEEG terminologyCohort studySpontaneous circulationBrainstem reflexesClinical outcomesComatose patientsFalse positive ratePoor prognosisPrognostic significanceSuppression burstsClinical variablesClinical correlatesElectroencephalographic patternsElectroencephalographic predictors
2014
Brief Potentially Ictal Rhythmic Discharges in Critically Ill Adults
Yoo JY, Rampal N, Petroff OA, Hirsch LJ, Gaspard N. Brief Potentially Ictal Rhythmic Discharges in Critically Ill Adults. JAMA Neurology 2014, 71: 454-462. PMID: 24535702, DOI: 10.1001/jamaneurol.2013.6238.Peer-Reviewed Original ResearchConceptsIctal rhythmic dischargesRhythmic dischargesIll patientsContinuous electroencephalographyCritically Ill AdultsPrevalence of seizuresGlasgow Outcome ScaleLarge prospective studiesSingle focal lesionCerebral injuryIll adultsElectrographic seizuresPrognostic significanceProspective studyFunctional outcomeSubclinical seizuresOutcome ScalePrimary diagnosisWorse outcomesHigh prevalenceEarly predictorMAIN OUTCOMEFocal lesionsPatientsSeizures