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Predictors of Outcome in Refractory Status Epilepticus.
MedLine Citation:
PMID:  23045215     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE To further characterize the demographics, outcomes, and prognostic factors for refractory status epilepticus (RSE). DESIGN Retrospective analysis of all the episodes of RSE treated between January 1, 1999, and August 30, 2011. SETTING Neurointensive care unit within a tertiary referral center, Mayo Clinic, Rochester, Minnesota. PATIENTS Refractory status epilepticus was defined as generalized convulsive or nonconvulsive status epilepticus (SE) that continued despite initial first- and second-line therapies. Exclusion criteria were aged younger than 18 years, anoxic/myoclonic SE, psychogenic SE, simple partial SE, and absence SE. MAIN OUTCOME MEASURES Functional outcome was defined by modified Rankin scale (mRS) dichotomized into good (mRS, 0-3) and poor (mRS, 4-6). Functional decline was defined as a change in mRS greater than 1 from hospital admission to discharge. RESULTS We identified 63 consecutive episodes of non-anoxic RSE in 54 patients. Anesthetic agents were used in 55 episodes (87.30%), and duration of drug-induced coma was (mean [SD]) 11.0 (17.9) days. In-hospital mortality was 31.75% (20 of 63 episodes). Poor functional outcome at discharge occurred in 48 of 63 episodes (76.19%). Hospital length of stay was (mean [SD]) 27.7 (37.3) days. Duration of drug-induced coma (P = .03), arrhythmias requiring intervention (P = .01), and pneumonia (P = .01) were associated with poor functional outcome. Prolonged mechanical ventilation was associated with mortality (P = .04). Seizure control without suppression-burst or isoelectric electroencephalogram predicted good functional recovery (P = .01). Age, history of epilepsy, previous SE, type of SE, and anesthetic drug used were not associated with functional outcome. CONCLUSIONS Three-quarters of patients with RSE have a poor outcome. Achieving control of the SE without requiring prolonged drug-induced coma or severe electroencephalographic suppression portends better prognosis.
Authors:
Sara E Hocker; Jeffrey W Britton; Jayawant N Mandrekar; E F M Wijdicks; Alejandro A Rabinstein
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-8
Journal Detail:
Title:  Archives of neurology     Volume:  -     ISSN:  1538-3687     ISO Abbreviation:  Arch. Neurol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372436     Medline TA:  Arch Neurol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-6     Citation Subset:  -    
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