| Prognostic value of electroneurography and electromyography in facial palsy. | |
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MedLine Citation:
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PMID: 18090862 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To compare the prognostic value of electroneurography (ENG) and needle electromyography (EMG) to estimate facial function outcome after acute facial palsy. STUDY DESIGN: Retrospective study using electrodiagnostic data and medical chart review. METHODS: Two hundred one patients treated 1995 to 2004 were included. Initial and final facial function was established clinically by the House-Brackmann (HB) scale. ENG results were classified into amplitude loss less than 75% and amplitude loss 75% or greater to predict complete recovery and defective healing, respectively. Initial and follow-up EMG results were classified into neurapraxia and predicted complete recovery. In contrast, axonotmesis/neurotmesis and mixed lesions predicted, by definition, defective healing. RESULTS:: Initial HB was II to IV in 154 patients and V to VI in 47 patients. The etiology was idiopathic palsy in 139, iatrogenic lesion in 29, traumatic in 18, and herpes zoster in 15 patients. Finally, 134 (67%) patients showed a full recovery. Sixty-seven (33%) patients showed signs of defective healing. ENG presented a sensitivity, specificity, accuracy, positive predictive value (to predict defective healing), and negative predictive value of 60%, 79%, 73%, 59%, and 80%, respectively. The values for the initial EMG were 66%, 98%, 89%, 91%, and 89%. The best results showed the follow-up EMG with 85%, 100%, 97%, 100%, and 96%. EMG results were not classifiable in 32 (16%) patients. CONCLUSIONS: EMG showed higher prognostic values than ENG, especially when repeated during the time course of the facial palsy. ENG might be helpful if the EMG result is not classifiable. |
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Authors:
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Maria Grosheva; Claus Wittekindt; Orlando Guntinas-Lichius |
Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: The Laryngoscope Volume: 118 ISSN: 0023-852X ISO Abbreviation: Laryngoscope Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-03-04 Completed Date: 2008-04-24 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8607378 Medline TA: Laryngoscope Country: United States |
Other Details:
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Languages: eng Pagination: 394-7 Citation Subset: IM |
Affiliation:
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Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Cologne, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Action Potentials Adolescent Adult Aged Aged, 80 and over Diagnostic Techniques, Neurological Electromyography* Facial Paralysis / physiopathology* Female Humans Male Middle Aged Prognosis Retrospective Studies |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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