title: Early and persistent 'extreme delta brush' in a patient with anti-NMDA receptor encephalitis.
abstract: Since its original description in 2007, anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis associated with an ovarian teratoma is an increasingly recognized etiology of previously unexplained encephalopathy and encephalitis. Extreme delta brush (EDB) is a novel electroencephalogram (EEG) finding seen in many patients with anti-NMDAR encephalitis. The presence of this pattern is associated with a more prolonged illness, although the specificity of this pattern is unclear. Additionally, the frequency and sensitivity of EDB in anti-NMDAR encephalitis and its implications for outcome have yet to be determined. We report a patient with early evidence of extreme delta brush and persistence of this pattern 17.5 weeks later with little clinical improvement.
authors: Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors: Stephen
authors: S
authors: VanHaerents
authors: Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors: Alexandra
authors: A
authors: Stillman
authors: Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors: Violiza
authors: V
authors: Inoa
authors: Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors: David Eric
authors: DE
authors: Searls
authors: Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors: Susan T
authors: ST
authors: Herman
keywords: Anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis; Epilepsy; Extreme delta brush; Ovarian teratoma; Seizure