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Electroencephalography for diagnosis and prognosis of acute encephalitis

Sutter, Raoul and Kaplan, Peter W. and Cervenka, Mackenzie C. and Thakur, Kiran T. and Asemota, Anthony O. and Venkatesan, Arun and Geocadin, Romergryko G.. (2015) Electroencephalography for diagnosis and prognosis of acute encephalitis. Clinical neurophysiology, 126 (8). pp. 1524-1531.

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Official URL: http://edoc.unibas.ch/42861/

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Abstract

To confirm the previously identified EEG characteristics for HSV encephalitis and to determine the diagnostic and predictive value of electroencephalography (EEG) features for etiology and outcome of acute encephalitis in adults. In addition, we sought to investigate their independence from possible clinical confounders.; This study was performed in the Intensive Care Units of two academic tertiary care centers. From 1997 to 2011, all consecutive patients with acute encephalitis who received one or more EEGs were included. Examination of the diagnostic and predictive value of EEG patterns regarding etiology, clinical conditions, and survival was performed. The main outcome measure was in-hospital death.; Of 103 patients with encephalitis, EEGs were performed in 76 within a median of 1day (inter quartile range 0.5-3) after admission. Mortality was 19.7%. Higher proportions of periodic discharges (PDs) (p=0.029) and focal slowing (p=0.017) were detected in Herpes Simplex virus (HSV) encephalitis as compared to non-HSV encephalitis, while clinical characteristics did not differ. Normal EEG remained the strongest association with a low relative risk for death in multivariable analyses (RR<0.001, p<0.001) adjusting for confounders as coma, global cerebral edema and mechanical ventilation. None of the patients with a normal EEG had a GCS of 15.; Normal EEG predicted survival independently from possible confounders, highlighting the prognostic value of EEG in evaluating patients with encephalitis. EEG revealed higher proportions of PDs along with focal slowing in HSV encephalitis as compared to other etiologies.; EEG significantly adds to clinical, diagnostic and prognostic information in patients with acute encephalitis.
Faculties and Departments:03 Faculty of Medicine
03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik)
03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Intensivmedizin > Intensivmedizin (Marsch)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Intensivmedizin > Intensivmedizin (Marsch)
03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Neurologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Neurologie
UniBasel Contributors:Sutter, Raoul Christian
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:1388-2457
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:04 Oct 2017 10:21
Deposited On:29 Nov 2016 09:03

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