Related Experiment Video
Updated: Jun 5, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
[Study on self-assessment, acoustic analysis, laryngoscopy for patients with voice surgery]
1Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Shanghai Jiaotong University, Shanghai 200080, China. david545yu@yahoo.com
Objective:
To study the self-assessment, acoustic analysis, laryngoscopy and its relationship for patients with voice disorders before and after surgery.
Methods:
Fifty patients with voice disorders were undergone self-assessment, acoustic analysis, and laryngoscopy before and after voice surgery. Self-assessment were done by voice handicap index (VHI) Scale Chinese version, including functional (F), physiological (P), emotion (E) and its sum denoted as T. Acoustic analysis were made for patient samples by Dr. Speech voice analysis software and jitter (J), shimmer (S), normalized noise energy (NNE) were selected as three parameters. Laryngoscopic examination were used to record the closure of vocal cord morphologically (C).
Result:
In addition to E, F, P and T(VH) of VHI scale had a good correlation. In acoustic analysis J, S and NNE had a good correlation between them. F, P and T(VH) of VHI scale and acoustic analysis parameters J, S and NNE had a good correlation. Closed degree C and the VHI scale F, P and T(VH) as well as acoustic analysis parameters J, S, NNE had a good correlation. All the above data use were analyzed by Pearson correlation test.
Conclusion:
VHI scale Chinese version make the patient's subjective feelings as the center, thus it has some limitations for the impact of East-West cultural differences, age, educational level and other factors. Acoustic analysis can show a detailed objective aspect of the patient's voice quality and evaluate the result of surgical treatment. Laryngoscopy provide an excellent morphological evidence. Consistency of three methods can do a comprehensive assessment for the voice disease.
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...
Physical Assessment of the Respiratory Tract IV: Auscultation
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques
Endoscopic Studies I: Bronchoscopy and Thoracoscopy
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Tracheostomy Suctioning II: Procedure

