title: A novel electroneurography method in facial palsy.
abstract: CONCLUSIONS
  The novel midline electroneurography (ENoG) method may have advantages over the standard method in terms of ease of electrode setting, and the ENoG value may be a useful prognostic factor.
  
  
  OBJECTIVE
  We compared ENoG performed in patients with facial palsy using two different methods--the new midline method and standard method--in terms of the amplitudes of the compound muscle action potentials(CMAPs) and relationship between the ENoG value and clinical course.
  
  
  METHODS
  A total of 64 patients with facial palsy were enrolled. CMAPs were recorded using the midline method, in which the recording electrodes were placed on the mental protuberance and philtrum over the orbicularis oris muscle, and the standard method, in which the recording electrodes were set close to the nasolabial fold. Percutaneous electrical stimulation was applied to the main trunk of the facial nerve.The amplitudes of the CMAPs and the relationship between the ENoG value and the period to full recovery from the facial palsy were compared.
  
  
  RESULTS
  The midline method had larger CMAP amplitudes on both sides and a stronger negative correlation in the relationship between the ENoG value and period to full recovery from palsy than the standard method statistically.
authors.affiliation: Department of Otolaryngology, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka, Japan.
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Haginomori
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Wada
authors.forename: Atsuko
authors.initials: A
authors.lastname: Takamaki
authors.forename: Atsuko
authors.initials: A
authors.lastname: Kanazawa
authors.forename: Ryuzaburo
authors.initials: R
authors.lastname: Nonaka
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Takenaka
authors.forename: Takayuki
authors.initials: T
authors.lastname: Takubo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004568:Electrodiagnosis / Q000295:instrumentation; D004576:Electromyography; D005071:Evoked Potentials; D005152:Facial Muscles / Q000294:innervation / Q000503:physiopathology; D005154:Facial Nerve / Q000503:physiopathology; D005158:Facial Paralysis / Q000175:diagnosis* / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D055815:Young Adult