نتایج جستجو برای: hypoglossal nerve
تعداد نتایج: 163922 فیلتر نتایج به سال:
Reduced upper airway muscle activity during sleep is a key contributor to obstructive sleep apnea pathogenesis. Hypoglossal nerve stimulation activates upper airway dilator muscles, including the genioglossus, and has the potential to reduce obstructive sleep apnea severity. The objective of this study was to examine the safety, feasibility and efficacy of a novel hypoglossal nerve stimulation ...
Jaw-opening and trigemino-hypoglossal reflexes can be evoked by innocuous as well as noxious afferents from intra-oral structures. It has been reported that the amplitude of the jaw-opening reflex evoked by weak electrical stimulation of the upper lip is subject not only to tonic suppression but also to phase-linked modulation during mastication. In this study, we investigated whether the jaw-o...
Freehand, isolated neuronal perikarya from the hypoglossal nucleus of the rabbit have been examined with light-and electron-microscopy (transmission and scanning). The surface of the cell bodies was largely covered with spherical particles which were 0.5-2 micro in diameter. Transmission electron microscopy proved that the spherical particles were synaptic nerve terminals. Crush of the hypoglos...
The hypoglossal nerve plays an important role in speech and swallowing. Despite the nerves important function, damage to the nerve does not usually present with any functional loss or symptoms that would be overtly noticeable to most patients [1,2]. Patients may become aware of such lesions when brushing their teeth or when visiting a dentist. Causes of hypoglossal nerve palsy include intracran...
Nerve damage may occur in the pharyngolaryngeal region during general anesthesia. The most frequently injured nerves are the hypoglossal, lingual and recurrent laryngeal. These injuries may arise in association with several factors, such as laryngoscopy, endotracheal intubation and tube insertion, cuff pressure, mask ventilation, the triple airway maneuver, the oropharyngeal airway, manner of i...
STUDY DESIGN Multi-institutional retrospective study. OBJECTIVE The goal of the current study is to quantify the incidence of 2 extremely rare complications of cervical spine surgery; hypoglossal and glossopharyngeal nerve palsies. METHODS A total of 8887 patients who underwent cervical spine surgery from 2005 to 2011 were included in the study from 21 institutions. RESULTS No glossophary...
BACKGROUND Interpositional jump graft (IPJG) is a nerve graft axonally supercharged from the hypoglossal nerve. However, for using the technique, an autologous nerve, which should contain the great auricular and sural nerves, must be obtained. Depending on the donor site, unavoidable issues such as nerve disorders and postoperative scarring may appear. To reduce the issues, in this study, the a...
PATIENT Female, 47 FINAL DIAGNOSIS: Traumatic bilateral abducens • unilateral hypoglossal nerve palsy SYMPTOMS Diplopia Medication: - Clinical Procedure: - Specialty: Neurology Objective: Rare disease. BACKGROUND Incidence of unilateral abducens palsy from head trauma has been reported to be as high as 1% to 2.7%, but bilateral abducens nerve palsy is extremely rare. CASE REPORT We presen...
In nembutalized cats intracellular potentials were recorded from hypoglossal motoneurons innervating either protruder or retractor muscles of the tonge (protruder and retractor motoneurons: P-Mns and R-Mns). Responses to stimulation of the hypoglossal nerve were explored and found to consist of an antidromic spike followed by an afterhyperpolarization (AHP) and a postsynaptic potential (PSP). W...
A 54-year-old man presented with nonprogressive dysarthria due to isolated right hypoglossal nerve (HN) palsy. The cranial MRI reveals an ectatic right vertebral artery impinging on the cisternal segment of HN (figure). The hypoglossal-vertebral entrapment syndrome1 occurs as the hypoglossal rootlets converge directly over the distorted vessel with resultant mechanical compression and direct ne...
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