Related Experiment Video
Updated: Sep 25, 2026
An Implantable System For Chronic In Vivo Electromyography
Published on: April 21, 2020
[Pharyngeal plexus neurectomy for voice restoration of alaryngeal]
1Department of Otorhinolaryngology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China. pyczljpy@public9.sta.net.cn
Objective:
To release the spasm of pharyngeal constrictor and raise the successful rate of voice rehabilitation in total laryngectomized patients wearing Blom-Singer prosthesis.
Methods:
The main branch of the pharyngeal plexus nerves within the inferior contractor can be found at the posterior side of hyoid greater cornu, which is about 6.5 mm from the back of constrictor. The spasm of the inferior constrictor can be resolved by cut off the nerve.
Results:
Voice restoration was achieved in 15 cases after pharyngeal plexus neurectomy, the successful rate was 93.75%.
Conclusion:
It is feasible to replace pharyngeal myotomy by nerve plexus neurectomy and raise the voice rehabilitation rate.
Related Concept Videos
01:22Spinal Nerves: Plexus I
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
01:21Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...
01:23Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...