Totally endoscopic transcanal facial nerve decompression in patients with traumatic facial nerve paralysis: from geniculate ganglion to mastoid segment. 2023

A Daneshi, and A Asghari, and M Mirsalehi, and M Kiani Asiabar, and S Mohebbi
ENT and Head and Neck Research Centre and Department, The Five Senses Health Institute, School of Medicine, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.

OBJECTIVE The current study evaluated the effectiveness of endoscopic transcanal facial nerve decompression in patients with post-traumatic facial nerve paralysis. METHODS This retrospective study included 10 patients with post-traumatic complete facial nerve paralysis who underwent endoscopic transcanal facial nerve decompression. The surgical technique was explained step by step, and the surgical complications, hearing status and facial nerve function 12 months post-operatively were reported. RESULTS Endoscopic transcanal facial nerve decompression allowed exposure of the geniculate ganglion to the mastoid segment. The facial nerve function improved from House-Brackmann grade VI to grades I and II in 8 of 10 (80 per cent) patients, and 2 patients experienced partial recovery (House-Brackmann grades III and IV). No severe complication was reported. CONCLUSIONS Endoscopic transcanal facial nerve decompression, involving the nerve from the geniculate ganglion to the mastoid segment, is a safe and effective approach in patients with post-traumatic facial nerve paralysis.

UI MeSH Term Description Entries
D008416 Mastoid The posterior part of the temporal bone. It is a projection of the petrous bone. Mastoid Foramen,Mastoid Bone,Mastoid Process,Bone, Mastoid,Foramen, Mastoid,Mastoid Bones,Mastoid Processes,Mastoids,Process, Mastoid
D010243 Paralysis A general term most often used to describe severe or complete loss of muscle strength due to motor system disease from the level of the cerebral cortex to the muscle fiber. This term may also occasionally refer to a loss of sensory function. (From Adams et al., Principles of Neurology, 6th ed, p45) Palsy,Plegia,Todd Paralysis,Todd's Paralysis,Palsies,Paralyses,Paralysis, Todd,Paralysis, Todd's,Plegias,Todds Paralysis
D005154 Facial Nerve The 7th cranial nerve. The facial nerve has two parts, the larger motor root which may be called the facial nerve proper, and the smaller intermediate or sensory root. Together they provide efferent innervation to the muscles of facial expression and to the lacrimal and SALIVARY GLANDS, and convey afferent information for TASTE from the anterior two-thirds of the TONGUE and for TOUCH from the EXTERNAL EAR. Cranial Nerve VII,Marginal Mandibular Branch,Marginal Mandibular Nerve,Seventh Cranial Nerve,Nerve VII,Nerve of Wrisberg,Nervus Facialis,Nervus Intermedius,Nervus Intermedius of Wrisberg,Cranial Nerve VIIs,Cranial Nerve, Seventh,Facial Nerves,Mandibular Nerve, Marginal,Mandibular Nerves, Marginal,Marginal Mandibular Nerves,Nerve VIIs,Nerve, Facial,Nerve, Marginal Mandibular,Nerve, Seventh Cranial,Nerves, Marginal Mandibular,Nervus Faciali,Seventh Cranial Nerves,Wrisberg Nerve,Wrisberg Nervus Intermedius
D005158 Facial Paralysis Severe or complete loss of facial muscle motor function. This condition may result from central or peripheral lesions. Damage to CNS motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles. FACIAL NERVE DISEASES generally results in generalized hemifacial weakness. NEUROMUSCULAR JUNCTION DISEASES and MUSCULAR DISEASES may also cause facial paralysis or paresis. Facial Palsy,Hemifacial Paralysis,Facial Palsy, Lower Motor Neuron,Facial Palsy, Upper Motor Neuron,Facial Paralysis, Central,Facial Paralysis, Peripheral,Facial Paresis,Lower Motor Neuron Facial Palsy,Upper Motor Neuron Facial Palsy,Central Facial Paralyses,Central Facial Paralysis,Facial Palsies,Facial Paralyses, Central,Facial Paralyses, Peripheral,Palsies, Facial,Palsy, Facial,Paralyses, Central Facial,Paralyses, Facial,Paralyses, Hemifacial,Paralysis, Central Facial,Paralysis, Facial,Paralysis, Hemifacial,Paralysis, Peripheral Facial,Pareses, Facial,Paresis, Facial,Peripheral Facial Paralysis
D005830 Geniculate Ganglion The sensory ganglion of the facial (7th cranial) nerve. The geniculate ganglion cells send central processes to the brain stem and peripheral processes to the taste buds in the anterior tongue, the soft palate, and the skin of the external auditory meatus and the mastoid process. Large Superficial Petrosal Nerve,Superficial Petrosal Nerve,External Petrosal Nerve,Geniculate Ganglia,Greater Petrosal Nerve,Greater Superficial Petrosal Nerve,Lesser Petrosal Nerve,Nerve of the Pterygoid Canal,Vidian Nerve,External Petrosal Nerves,Ganglia, Geniculate,Ganglion, Geniculate,Greater Petrosal Nerves,Lesser Petrosal Nerves,Nerve, External Petrosal,Nerve, Greater Petrosal,Nerve, Lesser Petrosal,Nerve, Superficial Petrosal,Nerve, Vidian,Petrosal Nerve, External,Petrosal Nerve, Greater,Petrosal Nerve, Lesser,Petrosal Nerve, Superficial,Superficial Petrosal Nerves
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D019299 Decompression, Surgical A surgical operation for the relief of pressure in a body compartment or on a body part. (From Dorland, 28th ed) Surgical Decompression,Decompressions, Surgical,Surgical Decompressions
D020220 Facial Nerve Injuries Traumatic injuries to the facial nerve. This may result in FACIAL PARALYSIS, decreased lacrimation and salivation, and loss of taste sensation in the anterior tongue. The nerve may regenerate and reform its original pattern of innervation, or regenerate aberrantly, resulting in inappropriate lacrimation in response to gustatory stimuli (e.g., "crocodile tears") and other syndromes. Facial Nerve Trauma,Facial Neuropathy, Traumatic,Marginal Mandibular Nerve Injuries,Marginal Mandibular Nerve Injury,Cranial Nerve VII Injuries,Facial Nerve Avulsion,Injuries, Cranial Nerve VII,Injuries, Seventh Cranial Nerve,Injury, Facial Nerve,Nerve Injury, Facial,Seventh Cranial Nerve Injuries,Avulsion, Facial Nerve,Facial Nerve Avulsions,Facial Nerve Injury,Facial Nerve Traumas,Nerve Avulsion, Facial,Nerve Trauma, Facial,Neuropathy, Traumatic Facial,Trauma, Facial Nerve,Traumatic Facial Neuropathies,Traumatic Facial Neuropathy

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