PMID- 23768540 OWN - NLM STAT- MEDLINE DCOM- 20140408 LR - 20141021 IS - 1532-2688 (Electronic) IS - 1059-1311 (Linking) VI - 22 IP - 8 DP - 2013 Oct TI - Continuous EEG predictors of outcome in patients with altered sensorium. PG - 656-61 LID - S1059-1311(13)00147-7 [pii] LID - 10.1016/j.seizure.2013.05.002 [doi] AB - PURPOSE: To evaluate EEG predictors of outcome in patients with altered sensorium suspected to have seizure and to assess whether short term EEG is as effective as long term continuous EEG (cEEG) in predicting the outcome of patients with altered sensorium due to neurological causes. METHODS: We identified 99 consecutive critically ill patients with altered sensorium in whom nonconvulsive seizures were suspected. They underwent cEEG. Functional outcome was assessed with the modified Rankin Scale (mRS) at 4 weeks, discharge or death. We compared efficacy of short term EEG and long term continuous EEG in recording the abnormal patterns on EEG. Logistic regression analysis was performed to identify EEG findings associated with poor outcome, defined as mRS 4-6 (dead or moderately to severely disabled). RESULTS: Poor outcome was associated with nonconvulsive seizures (NCS), nonconvulsive status epilepticus (NCSE), periodic lateralized epileptiform discharges (PLEDS), PLEDS plus, generalized periodic epileptiform discharges (GPEDS) and abnormal EEG background. Short term EEG can detect seizure activity and other electrographic markers of poor outcome but the values are statistically insignificant. CONCLUSION: cEEG monitoring provides independent prognostic information in patients with altered sensorium and suspected seizures. Unfavorable findings include nonconvulsive seizures, periodic epileptiform discharges and abnormal background. Short term EEG is ineffective in detecting seizures on EEG in patients with altered sensorium and should not be used as substitute for Long term EEG. CI - Copyright (c) 2013 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved. FAU - Rai, Vinod AU - Rai V AD - Department of Neurology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India. FAU - Jetli, Sanjeev AU - Jetli S FAU - Rai, Neha AU - Rai N FAU - Padma, M V AU - Padma MV FAU - Tripathi, Manjari AU - Tripathi M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130612 PL - England TA - Seizure JT - Seizure JID - 9306979 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Brain/*physiopathology MH - Critical Illness MH - Electroencephalography/*methods MH - Female MH - Humans MH - Male MH - Middle Aged MH - Prognosis MH - Seizures/diagnosis/*physiopathology MH - Status Epilepticus/diagnosis/*physiopathology OTO - NOTNLM OT - Altered sensorium OT - Continuous EEG OT - Outcome OT - Predictors EDAT- 2013/06/19 06:00 MHDA- 2014/04/09 06:00 CRDT- 2013/06/18 06:00 PHST- 2012/09/23 00:00 [received] PHST- 2013/04/22 00:00 [revised] PHST- 2013/05/01 00:00 [accepted] PHST- 2013/06/18 06:00 [entrez] PHST- 2013/06/19 06:00 [pubmed] PHST- 2014/04/09 06:00 [medline] AID - S1059-1311(13)00147-7 [pii] AID - 10.1016/j.seizure.2013.05.002 [doi] PST - ppublish SO - Seizure. 2013 Oct;22(8):656-61. doi: 10.1016/j.seizure.2013.05.002. Epub 2013 Jun 12.