Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: 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...

Suctioning the Oropharyngeal Airway

Suctioning the Oropharyngeal Airway

In preparing for oropharyngeal airway suctioning, a nurse must gather all necessary equipment, including a suction unit with tubing, a prepackaged suction kit, sterile gloves, water or saline for irrigation, a water-soluble lubricant, and additional personal protective equipment (such as a gown, mask, and goggles) to control infections.
After assembling the equipment, the nurse should practice hand hygiene and don appropriate PPE according to infection control guidelines to avoid the...

Endoscopic Studies II: Thoracocentesis

Endoscopic Studies II: Thoracocentesis

Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...

Suctioning the Nasopharyngeal Airway

Suctioning the Nasopharyngeal Airway

Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required

Assessment of Airway, Skin Color, and Use of Accessory Muscles

Assessment of Airway, Skin Color, and Use of Accessory Muscles

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Functional Characteristics of the Crosstalk Between Vocal Fold Fibroblasts and Macrophages-The Role of Vibration in Vocal Fold Inflammation.

Journal of voice : official journal of the Voice Foundation·2025

Same author

Patient-centered discharge summaries to support safety and individual health literacy: a double-blind randomized controlled trial in Austria.

BMC health services research·2024

Same author

Clinical evaluation of a machine learning-based dysphagia risk prediction tool.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·2024

Same author

Describing the Cellular Impact of IQOS™ Smoke Extract and Vibration on Human Vocal Fold Fibroblasts.

Journal of voice : official journal of the Voice Foundation·2024

Same author

Vocal fold fibroblasts and exposure to vibration in vitro: Does sex matter?

PloS one·2024

Same author

Prevalence of Benign Vocal Fold Lesions: Long-Term Results From a Single European Institution.

Journal of voice : official journal of the Voice Foundation·2023

Search research articles

Related Experiment Video

Updated: Jul 7, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing

Published on: December 1, 2023

Analysis of forces applied during microlaryngoscopy: a descriptive study.

Markus Gugatschka¹, Claus Gerstenberger, Gerhard Friedrich

¹Department of Phoniatrics, Speech and Swallowing, Ear, Nose and Throat University Hospital, Medical University of Graz, Auenbruggerplatz 26-28, Graz, Austria. markus.gugatschka@klinikum-graz.at

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

|February 5, 2008

Summary

Microlaryngoscopy (MLX) involves significant forces on teeth and tongue base, averaging 19.4 kg and 23.8 kg respectively. Tooth status impacts exposure ease, but no gender differences were found in these forces.

More Related Videos

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Published on: April 7, 2023

Related Experiment Videos

Last Updated: Jul 7, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing

Published on: December 1, 2023

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways

Published on: April 7, 2023

Area of Science:

Otolaryngology
Surgical Mechanics
Laryngeal Anatomy

Background:

Microlaryngoscopy (MLX) is a standard procedure in laryngology for visualizing endolaryngeal structures.
Fulcrum-based laryngoscopy utilizes instruments to expose tissues, but the forces involved are not fully quantified.

Purpose of the Study:

To quantify forces exerted during microlaryngoscopy (MLX).
To identify factors influencing the ease of surgical exposure.
To investigate potential gender differences in MLX forces and exposure ease.

Main Methods:

Force measurements using a tension spring balance attached to the laryngoscope holder (F (chest)).
Calculation of forces on teeth (F (teeth)) and tongue base (F (tongue)) using lever principles.
Correlation analysis between tooth status, exposure ease, and measured forces in 100 patients.

Main Results:

Mean force on the laryngoscope holder (F (chest)) was 4.4 kg (43.2 N).
Mean force on teeth (F (teeth)) was 19.4 kg (190 N); mean force on tongue base (F (tongue)) was 23.8 kg (233.5 N).
Tooth status significantly correlated with exposure ease; no gender differences were observed.

Conclusions:

Microlaryngoscopy generates substantial forces on the teeth and tongue base.
Patient's dental status is a key factor affecting surgical field exposure during MLX.
Further research may explore optimizing instrument design to mitigate these forces.