Related Experiment Video
Updated: Jul 18, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
[Diagnosis and treatment and prevention of iatrogenic functional aphonia]
Jian-qun Du1, Bao-qi Yang, Ji-xiang Liu
1Department of Otorhinolaryngology, First Central Hospital of Tianjin, Tianjin 300192, China. dujianqun1965@yahoo.com.cn
Objective:
To discuss the diagnosis, treatment and prevention of iatrogenic functional aphonia.
Methods:
Twenty three patients who either lost their voice or only could whisper after surgery in other hospitals were included in this study as the first group, history was well collected and laryngostroboscopy performed. All cases were confirmed as iatrogenic functional aphonia patients and received phonation therapy. In another group of patients who received vocal cord surgery in our hospital from 2003 to 2005, speaking was restricted while not prohibited after surgery, voice quality was closely observed, and 1028 cases were included.
Results:
All 23 cases of functional aphonia were cured with phonation therapy. No iatrogenic functional aphonia occurred in the second group of patients.
Conclusions:
The iatrogenic functional aphonia can be caused by post operative mistreatment and could be cured with phonation therapy, and it is preventable if speaking is not strictly prohibited after surgery.
Related Concept Videos
Larynx
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...
Chronic 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,...
Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Introduction to Language of Pathophysiology ll
Myasthenia Gravis: Overview and Treatment
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which leads...
Tonsillitis II: Management