These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.
Pubmed for Handhelds
PUBMED FOR HANDHELDS
Search MEDLINE/PubMed
Title: Reinnervation by the contralateral facial nerve in patients with peripheral facial palsy. Author: Casanova-Molla J, León L, Castillo CD, Valls-Solé J. Journal: Muscle Nerve; 2011 Dec; 44(6):923-9. PubMed ID: 22102463. Abstract: INTRODUCTION: Reinnervation activity is triggered after complete unilateral peripheral facial palsy (PFP). METHODS: In 27 patients with PFP we recorded electromyographic activity with a concentric needle electrode inserted 1 cm lateral to the oral commissure of the affected side. We applied electrical stimuli to the unaffected (contralateral) facial nerve from the tragus to the mid-lower lip and measured the response latency variability and segmental conduction velocity. RESULTS: Responses to electrical stimulation of the unaffected facial nerve were found in all patients. Mean conduction velocity was 49.6 ± 6.2 m/s between tragus and oral commissure, and 6.0 ± 1.9 m/s between oral commissure and mid-lower lip. Latency variability was 0.27 ms to facial nerve stimulation and 0.08 ms to oral commissure stimulation. CONCLUSION: Short distance sprouting of axons that innervate muscle fibers, which originate from the unaffected facial nerve, results in propagation of impulses to muscle fibers in the midline.[Abstract] [Full Text] [Related] [New Search]