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

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway interventions are...

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...

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...

Endoscopic Procedures I: Esophagogastroduodenoscopy

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:

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...

Endoscopic Procedures III: Video Capsule Endoscopy

Endoscopic Procedures III: Video Capsule Endoscopy

Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers, unexplained...

You might also read

Related Articles

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

Sort by

Same author

Medialization Thyroplasty with Tensor Fascia Lata for Immunocompromised or Irradiated Patients.

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

Same author

Third Proceedings of The North American Airway Collaborative (NoAAC): Consensus Statement on Trial Design for Airway Stenosis.

JAMA otolaryngology-- head & neck surgery·2025

Same author

Is Postoperative Voice Rest Unnecessary? A Systematic Review and Meta-analysis of Voice Rest Recommendation Outcomes.

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

Same author

Psychiatric Diagnoses and Psychotropic Drug Usage in Gender-Affirming Voice Surgery Patients.

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

Same author

Amelioration of Subglottic Stenosis by Antimicrobial Peptide Eluting Endotracheal Tubes.

Cellular and molecular bioengineering·2023

Same author

Gender analysis of the top classic papers in otolaryngology head and neck surgery.

World journal of otorhinolaryngology - head and neck surgery·2023

Search research articles

Related Experiment Video

Updated: Jul 15, 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

Laryngoscopies in the obese: predicting problems and optimizing visualization.

Adrianna M Hekiert¹, Jeff Mandel, Natasha Mirza

¹Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Medical Center, Philadelphia 19104, USA.

The Annals of Otology, Rhinology, and Laryngology

|May 12, 2007

Summary

Predicting difficult laryngeal exposure in obese patients is crucial. While neck size in females and the Cormack-Lehane score are associated, Mallampati scores are less useful for predicting difficult airways.

More Related Videos

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation

Published on: August 2, 2024

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 15, 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

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation

Published on: August 2, 2024

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:

Anesthesiology
Otolaryngology
Airway Management

Background:

Obesity presents unique challenges for airway management.
Difficult laryngeal exposure can complicate intubation procedures.

Purpose of the Study:

Identify predictors of difficult laryngeal exposure in obese patients.
Develop strategies for efficient intubation and glottic visualization.
Devise perioperative protocols for challenging laryngoscopies.

Main Methods:

Retrospective study of 14 obese patients (BMI > 30 kg/M2) undergoing direct laryngoscopy.
Recorded measurements: height, weight, neck circumference, Mallampati score, Cormack-Lehane classification.
Assessed difficulty using visual analog scale for visualization, illumination, and suspension.

Main Results:

Anatomic challenges included reduced neck extension and oropharyngeal tissue folds.
Cormack-Lehane score correlated with difficult laryngeal exposure (r = .57, p = .03).
Neck size in females predicted Cormack-Lehane score (p = .02); Mallampati score had limited utility.
Straight blade laryngoscopes with distal flange improved visualization and insertion depth.

Conclusions:

Clinical examination can aid in predicting difficult airways.
Further research is needed to fully characterize anatomic predictors of difficult laryngeal exposure.