“…Therefore, we recommend a monitoring of patients after hypoglossal‐facial nerve jump suture for at least 18 months. The final functional outcome should be reached before decisions are made for additional surgical or non‐surgical measures . To monitor the patients also with EMG has the additional advantage to allow a clear distinction between incomplete reinnervation (incomplete recovery of the MUP recruitment pattern) and synkinetic reinnervation (involuntary MUP activity in a facial muscle while voluntarily tightening another facial muscle).…”
Objectives/HypothesisThe time course of the reinnervation of the paralyzed face after hypoglossal‐facial jump nerve suture using electromyography (EMG) was assessed. The relation to the clinical outcome was analyzed.Study DesignRetrospective single‐center cohort studyMethodsReestablishment of motor units was studied by quantitative EMG and motor unit potential (MUP) analysis in 11 patients after hypoglossal‐facial jump nerve suture. Functional recovery was evaluated using the Stennert index (0 = normal; 10 = maximal palsy).ResultsClinically, first movements were seen between 6 and >10 months after surgery in individual patients. Maximal improvement was achieved at 18 months. The Stennert index decreased from 7.9 ± 2.0 preoperatively to a final postoperative score of 5.8 ± 2.4. EMG monitoring performed for 2.8 to 60 months after surgery revealed that pathological spontaneous activity disappeared within 2 weeks. MUPs were first recorded after the 2nd month and present in all 11 patients 8–10 months post‐surgery. Polyphasic regeneration potentials first appeared at 4–10 months post‐surgery. The MUP amplitudes increased between the 3rd and 15th months after surgery to values of control muscles. The MUP duration was significantly increased above normal values between the 3rd and 24th months after surgery.ConclusionReinnervation can be detected at least 2 months earlier by EMG than by clinical evaluation. Changes should be followed for at least 18 months to assess outcome. EMG changes reflected the remodeling of motor units due to axonal regeneration and collateral sprouting by hypoglossal nerve fibers into the reinnervated facial muscle fibers.Level of Evidence3b.
“…Therefore, we recommend a monitoring of patients after hypoglossal‐facial nerve jump suture for at least 18 months. The final functional outcome should be reached before decisions are made for additional surgical or non‐surgical measures . To monitor the patients also with EMG has the additional advantage to allow a clear distinction between incomplete reinnervation (incomplete recovery of the MUP recruitment pattern) and synkinetic reinnervation (involuntary MUP activity in a facial muscle while voluntarily tightening another facial muscle).…”
Objectives/HypothesisThe time course of the reinnervation of the paralyzed face after hypoglossal‐facial jump nerve suture using electromyography (EMG) was assessed. The relation to the clinical outcome was analyzed.Study DesignRetrospective single‐center cohort studyMethodsReestablishment of motor units was studied by quantitative EMG and motor unit potential (MUP) analysis in 11 patients after hypoglossal‐facial jump nerve suture. Functional recovery was evaluated using the Stennert index (0 = normal; 10 = maximal palsy).ResultsClinically, first movements were seen between 6 and >10 months after surgery in individual patients. Maximal improvement was achieved at 18 months. The Stennert index decreased from 7.9 ± 2.0 preoperatively to a final postoperative score of 5.8 ± 2.4. EMG monitoring performed for 2.8 to 60 months after surgery revealed that pathological spontaneous activity disappeared within 2 weeks. MUPs were first recorded after the 2nd month and present in all 11 patients 8–10 months post‐surgery. Polyphasic regeneration potentials first appeared at 4–10 months post‐surgery. The MUP amplitudes increased between the 3rd and 15th months after surgery to values of control muscles. The MUP duration was significantly increased above normal values between the 3rd and 24th months after surgery.ConclusionReinnervation can be detected at least 2 months earlier by EMG than by clinical evaluation. Changes should be followed for at least 18 months to assess outcome. EMG changes reflected the remodeling of motor units due to axonal regeneration and collateral sprouting by hypoglossal nerve fibers into the reinnervated facial muscle fibers.Level of Evidence3b.
“…Although full recovery of facial function occurs in approximately 70% of cases, 30% of patients will develop postparalysis facial palsy . This condition consists of varying degrees of residual facial weakness, hyperactivity, and synkinesis, resulting in functional and aesthetic deficits with substantial adverse impact on quality of life . Corticosteroids are the mainstay of treatment of BP, with antiviral therapy used as an adjunct .…”
Section: Introductionmentioning
confidence: 99%
“…9 This condition consists of varying degrees of residual facial weakness, hyperactivity, and synkinesis, resulting in functional and aesthetic deficits with substantial adverse impact on quality of life. [10][11][12][13][14][15] Corticosteroids are the mainstay of treatment of BP, with antiviral therapy used as an adjunct. 8,16 Disagreement exists as to whether pregnancy is a risk factor for worse long-term outcomes in BP.…”
“…Multiple approaches to restore the ability to smile in patients with facial nerve paralysis exist . Dynamic reanimation with free muscle transfer has emerged as the preferred choice .…”
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