Monitoring the vagus nerve and the recurrent laryngeal nerve during surgical procedures may reduce the probability of significant nerve injury. As such, a number of methods to monitor these nerves have been devised including placing electrodes directly into the vocal cords or recording from surface electrodes. In direct comparison, monitoring the identical muscles, bipolar hookwire electrodes displayed approximately one order of magnitude greater amplitude, of both spontaneously occurring and evoked electrical activity than double wire endotracheal tube electrodes. The enhanced sensitivity of the hookwire electrodes, despite the technical difficulties with placement, suggests their use when maximum sensitivity is required.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1023/a:1020729832385 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Cortical Silent Period in the Cricothyroid Muscle as a Neurophysiologic Feature for Dystonia Observation: E-Field-Navigated Transcranial Magnetic (TMS) Study.
Biomedicines
May 2023
Laboratory for Human and Experimental Neurophysiology, Department of Neuroscience, University of Split School of Medicine, 21000 Split, Croatia.
The cortical silent period (cSP) is a period of electrical silence following a motor-evoked potential (MEP) in the electromyographic signal recorded from a muscle. The MEP can be elicited by transcranial magnetic stimulation (TMS) over the primary motor cortex site corresponding with the muscle. The cSP reflects the intracortical inhibitory process mediated by GABA and GABA receptors.
View Article and Find Full Text PDFObjective: To correlate intraoperative changes of the laryngeal adductor reflex (LAR), alone or in combination with corticobulbar motor evoked potential of vocal muscles (vocal-CoMEPs), with postoperative laryngeal function after posterior fossa and brainstem surgery.
Methods: We monitored 53 patients during cerebellar-pontine angle and brainstem surgeries. Vocal-CoMEPs and LAR were recorded from an endotracheal tube with imbedded electrodes or hook-wires electrodes.
Ansa Cervicalis Stimulation: A New Direction in Neurostimulation for OSA.
Chest
March 2021
Department of Otorhinolaryngology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA; Universidad Peruana Cayetano Heredia School of Medicine, Lima, Peru.
Background: Hypoglossal nerve stimulation (HNS) is an alternative treatment option for patients with OSA unable to tolerate positive airway pressure but implant criteria limit treatment candidacy. Previous research indicates that caudal tracheal traction plays an important role in stabilizing upper airway patency.
Research Question: Does contraction of the sternothyroid muscle with ansa cervicalis stimulation (ACS), which pulls the pharynx caudally via thyroid cartilage insertions, increase maximum inspiratory airflow (Vmax)?
Study Design And Methods: Hook-wire percutaneous electrodes were used to stimulate the medial branch of the right hypoglossal nerve and right branch of the ansa cervicalis innervating the sternothyroid muscle during propofol sedation.
Five-fold Gastrointestinal Electrical Stimulation With Electromyography-based Activity Analysis: Towards Multilocular Theranostic Intestinal Implants.
J Neurogastroenterol Motil
July 2019
Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.
Background/aims: Motility disorders are common and may affect the entire gastrointestinal (GI) tract but current treatment is limited. Multilocular sensing of GI electrical activity and variable electrical stimulation (ES) is a promising option. The aim of our study is to investigate the effects of adjustable ES on poststimulatory spike activities in 5 GI segments.
View Article and Find Full Text PDFPediatric laryngeal electromyography technique for vocal fold immobility using bipolar double hookwire electrodes.
Int J Pediatr Otorhinolaryngol
April 2019
Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye & Ear Infirmary, Boston, MA, USA; Department of Otology & Laryngology, Harvard Medical School, Boston, MA, USA. Electronic address:
Vocal fold immobility (VFI) is a common cause of dysphonia and dysphagia in children. Laryngeal electromyography (LEMG) is an important adjunctive test in its diagnosis and treatment. In this study, we present an alternative technique in which bipolar double hookwire electrodes allow simultaneous placement and recordings from the bilateral thyroarytenoid and posterior cricoarytenoid muscles.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!