Related Experiment Video
Updated: Jan 3, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
A Comprehensive Voice Analysis in Benign Vocal Fold Lesions Treated by Cold Knife Endolaryngeal Surgery Using
Anshu Singh1, Aparaajita Upadhyay1, Anubhav Shrivastava1
1Department of ENT, M.G.M.M.C. and M.Y. Hospital, Indore, M.P. India.
Abstract:
In the era of globalisation, numerous technical methods have emerged in the management of benign laryngeal lesions. Still cold knife endolaryngeal surgery holds the basic and effective position in providing excellent voice outcome. The aim of this study is to assess the cold knife as a tool for excision of benign laryngeal lesions by protocol of voice assessment. Fifty-five patients with benign vocal fold lesions were included (26 women and 29 men), with age ranging from 22 to 56 years. Each patient was subjected to endoscopic microlaryngeal surgery with cold instruments. Voice assessment was done preoperatively and 3 weeks postoperatively and 3 month post-operatively. The patients were assessed subjectively by Voice Problem Self-Assessment Scale and objectively by laryngoscopy, stroboscopy, and acoustic analysis. Outcome was measured by comparing preoperative and postoperative groups. Significant improvement (< 0.05) was observed in the voice handicap index, acoustic parameters and video stroboscopy parameters between the preoperative and the postoperative groups. The cold knife endo-laryngoscopic surgery still stands out to be a simple, cost effective yet efficient way in treating majority of benign vocal fold lesions causing hoarseness of voice.
Related Concept Videos
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...
Endoscopic Procedures III: Video Capsule Endoscopy
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,...
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):

