The purpose of this work was to reestablish the respiratory abduction of theparalyzed vocal cord through reinnervation of the posterior cricoarytenoid(PCA)mus-cle by part of phrenic fibres.In fifteen adult cats the ad...The purpose of this work was to reestablish the respiratory abduction of theparalyzed vocal cord through reinnervation of the posterior cricoarytenoid(PCA)mus-cle by part of phrenic fibres.In fifteen adult cats the adductor branch of the recurrentlaryngeal nerve(RLN)of the right side was cut and its distal end ligated,while the pro -ximal end was implanted into the PCA muscle belly.The whole RLN was then transectedin the tracheoesophageal groove and its distal stump anastomosed to the upper branchof the phrenic nerve.Various techniques for observation were used on day 40,80 and 150after operation.Direct laryngoscopy showed that the inspiratory abduction of the para-lyzed vocal cord recovered within 40 d in all cats.Eighty days later,a larger abducentmotion of the glottis was observed on the reinnervated side.Abduction was caused byreinnervation of the PCA muscle from phrenic motoneurons,as demonstrated by laryn-geal electromyogram,and the function of diaphragm maintained as revealed by monito-ring of the intrathoracic pressure.展开更多
Dear Editor,Chronic pain is a significant concern after major lower limb amputations that often preclude prosthetic fitting,decrease ambulation,and impact the quality of life[1,2].In the last decade,targeted muscle re...Dear Editor,Chronic pain is a significant concern after major lower limb amputations that often preclude prosthetic fitting,decrease ambulation,and impact the quality of life[1,2].In the last decade,targeted muscle reinnervation(TMR)has been proposed as a surgical strategy for treating or preventing symptomatic neuromas and phantomlimb phenomena in major amputees[1].This technique involves the transfer of an amputated mixed-motor and sensory nerve to a nearby recipient motor nerve[1,2].Unlike most surgical strategies that aim to hide or protect the neuroma,TMR gives the amputated nerves“somewhere to go and something to do”[2].In a randomized clinical trial on neuroma and phantom pain,Dumanian et al.[1]demonstrated that TMR reduces amputationrelated chronic pain at 1-year post-intervention when compared with the excision and muscle-burying technique,which remains the current gold standard.Valerio et al.[2]also proposed applying TMR at the time of major limb amputation for preventing chronic pain and found that TMR patients experienced less residual limb pain(RLP)and phantom limb pain(PLP)when compared with untreated amputee controls.展开更多
文摘The purpose of this work was to reestablish the respiratory abduction of theparalyzed vocal cord through reinnervation of the posterior cricoarytenoid(PCA)mus-cle by part of phrenic fibres.In fifteen adult cats the adductor branch of the recurrentlaryngeal nerve(RLN)of the right side was cut and its distal end ligated,while the pro -ximal end was implanted into the PCA muscle belly.The whole RLN was then transectedin the tracheoesophageal groove and its distal stump anastomosed to the upper branchof the phrenic nerve.Various techniques for observation were used on day 40,80 and 150after operation.Direct laryngoscopy showed that the inspiratory abduction of the para-lyzed vocal cord recovered within 40 d in all cats.Eighty days later,a larger abducentmotion of the glottis was observed on the reinnervated side.Abduction was caused byreinnervation of the PCA muscle from phrenic motoneurons,as demonstrated by laryn-geal electromyogram,and the function of diaphragm maintained as revealed by monito-ring of the intrathoracic pressure.
文摘Dear Editor,Chronic pain is a significant concern after major lower limb amputations that often preclude prosthetic fitting,decrease ambulation,and impact the quality of life[1,2].In the last decade,targeted muscle reinnervation(TMR)has been proposed as a surgical strategy for treating or preventing symptomatic neuromas and phantomlimb phenomena in major amputees[1].This technique involves the transfer of an amputated mixed-motor and sensory nerve to a nearby recipient motor nerve[1,2].Unlike most surgical strategies that aim to hide or protect the neuroma,TMR gives the amputated nerves“somewhere to go and something to do”[2].In a randomized clinical trial on neuroma and phantom pain,Dumanian et al.[1]demonstrated that TMR reduces amputationrelated chronic pain at 1-year post-intervention when compared with the excision and muscle-burying technique,which remains the current gold standard.Valerio et al.[2]also proposed applying TMR at the time of major limb amputation for preventing chronic pain and found that TMR patients experienced less residual limb pain(RLP)and phantom limb pain(PLP)when compared with untreated amputee controls.
