title: A novel muscle for electroneurography in peripheral facial palsy: occipitalis.
abstract: Electroneurography (ENoG) is one of the most objective tests in grading the damage and prediction of prognosis in peripheral facial palsy (PFP). We aimed to determine temporal changes of ENoG recorded over occipitalis muscle in acute idiopathic PFP. Consecutive 21 patients with unilateral acute idiopathic PFP and age- and sex-matched 15 healthy volunteers were included in the study. Nasal and occipital ENoG values were recorded once in the control group and the same procedure was repeated daily between the second and eight days of the disorder in the PFP group. Occipital ENoG value began to increase on the third day while nasal ENoG value was still within the normal range (27.04 vs 7.69 %, p = 0.0001). In the fourth, fifth and sixth days, occipital ENoG value was significantly high compared to nasal ENoG value (p = 0.0001 for each day) whereas nasal and occipital ENoG values were very similar in the seventh and eighth days (p = 0.181 and p = 0.584, respectively). Our study presents further support for technical possibility of occipital ENoG which may reflect the degree of fiber degeneration earlier than the nasalis muscle in PFP.
authors.affiliation: Department of Neurology, I.U. Cerrahpasa Medical Faculty, Cerrahpasa School of Medicine, Istanbul University, K.M.Pasa, Istanbul, Turkey. nurtenznctf@gmail.com.
authors.forename: Nurten
authors.initials: N
authors.lastname: Uzun
authors.affiliation: Department of Electromyography Laboratory, Istanbul Training and Research Hospital, Istanbul, Turkey.
authors.forename: Turgut
authors.initials: T
authors.lastname: Adatepe
authors.affiliation: Department of Otorhinolaryngology, Istanbul Training and Research Hospital, Istanbul, Turkey.
authors.forename: Elad
authors.initials: E
authors.lastname: Azizli
authors.affiliation: Department of Otorhinolaryngology, Istanbul Training and Research Hospital, Istanbul, Turkey.
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Alkan
authors.affiliation: Department of Otorhinolaryngology, Istanbul Training and Research Hospital, Istanbul, Turkey.
authors.forename: Özgür
authors.initials: Ö
authors.lastname: Yiğit
authors.affiliation: Department of Neurology, I.U. Cerrahpasa Medical Faculty, Cerrahpasa School of Medicine, Istanbul University, K.M.Pasa, Istanbul, Turkey.
authors.forename: Ayşegül
authors.initials: A
authors.lastname: Gündüz
authors.affiliation: Department of Neurology, I.U. Cerrahpasa Medical Faculty, Cerrahpasa School of Medicine, Istanbul University, K.M.Pasa, Istanbul, Turkey.
authors.forename: Feray
authors.initials: F
authors.lastname: Karaali-Savrun
mesh_terms: D000328:Adult; D020330:Bell Palsy / Q000175:diagnosis / Q000503:physiopathology; D004568:Electrodiagnosis / Q000379:methods*; D055724:Electrophysiological Phenomena; D005152:Facial Muscles / Q000294:innervation / Q000473:pathology / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011446:Prospective Studies; D015203:Reproducibility of Results
keywords: Electroneurography; Nasalis muscle; Occipitalis muscle; Peripheral facial paralysis