Hypoglossal-facial nerve anastomosis: dynamic insight into the cross-innervation phenomenon.
The authors investigated the evolution of the dynamic features of the cross-innervation process in patients with complete facial palsy due to facial nerve transection during surgery for acoustic neuroma removal followed by a hypoglossal-facial nerve anastomosis (HFA). Clinical and electrophysiologic investigations were carried out before and over a 3-year period after HFA. Cross-innervation had started by the 10th day, progressed to the seventh to eighth month, then decreased and finally disappeared by the 12th month after HFA. Ipsilateral reinnervation was observed by the fourth month, progressed to the 12th to 18th month, and remained stable for the remainder of the follow-up period.
Tankéré
F
F
ENT Department, Pitié-Salpêtrière Hospital, Paris, France.
Bernat
I
I
Vitte
E
E
Lamas
G
G
Bouche
P
P
Fournier
E
E
Soudant
J
J
Willer
J C
JC
D000328:Adult; D000368:Aged; D000714:Anastomosis, Surgical; D001369:Axons / Q000502:physiology; D004558:Electric Stimulation; D004576:Electromyography; D005154:Facial Nerve / Q000503:physiopathology / Q000601:surgery*; D005158:Facial Paralysis / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D007002:Hypoglossal Nerve / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000601:surgery