Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques01:30

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

871
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...
871
Cardiopulmonary Resuscitation II: ACLS Airway Management01:22

Cardiopulmonary Resuscitation II: ACLS Airway Management

1.1K
Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
1.1K
Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

980
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...
980

You might also read

Related Articles

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

Sort by
Same author

Prioritizing tuberculosis preventive therapy for IGRA-negative people living with HIV initiating antiretroviral therapy.

Journal of infection and public health·2026
Same author

Analysis of the differential clinical characteristics of tuberculosis and nontuberculous mycobacterial diseases among AIDS patients.

Journal of clinical tuberculosis and other mycobacterial diseases·2026
Same author

[Advances in injection of botulinum toxin in dysphagia and associated diseases].

Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery·2026
Same author

Efficacy and Safety of Switching to Dolutegravir/Lamivudine in Virologically Suppressed HIV-1 Infected Adults with TDF-Related Renal or Bone Toxicity.

Infectious diseases and therapy·2026
Same author

Prognostic factors for pediatric sudden sensorineural hearing loss: a systematic review and meta-analysis.

Frontiers in pediatrics·2026
Same author

Expert Consensus of China on Laryngeal Contact Granuloma: A Modified Delphi Study.

Journal of voice : official journal of the Voice Foundation·2026
Same journal

Comparisons of prognosis between urothelial carcinoma of the upper urinary tract and bladder with pT3-4 cancer.

International journal of clinical and experimental medicine·2020
Same journal

Lentivirus-Mediated knockdown of tectonic family member 1 inhibits medulloblastoma cell proliferation [Retraction].

International journal of clinical and experimental medicine·2018
Same journal

Effect of lipiodol and methylene blue on the thoracoscopic preoperative positioning [Retraction].

International journal of clinical and experimental medicine·2018
Same journal

Development of synthetic of peptide-functionalized liposome for enhanced targeted ovarian carcinoma therapy [Retraction].

International journal of clinical and experimental medicine·2018
Same journal

Parathyroid hormone plus alendronate in osteoporosis: a meta-analysis of randomized controlled trials [Retraction].

International journal of clinical and experimental medicine·2018
Same journal

Diagnostic value of IMP3 in pancreatic cancer: a meta-analysis [Retraction].

International journal of clinical and experimental medicine·2018
See all related articles

Related Experiment Video

Updated: Apr 13, 2026

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways
08:21

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

Published on: April 7, 2023

2.7K

OSAHS obstructive plane localization: comparative study between ag200 and friedman classification.

Xi Chen1, Jianjun Sun1, Wei Yuan1

  • 1Department of Otolaryngology-Head and Neck Surgery, Navy General Hospital Beijing 100048, China.

International Journal of Clinical and Experimental Medicine
|May 2, 2015
PubMed
Summary
This summary is machine-generated.

The AG200 system offers a more dynamic assessment of upper airway obstruction in obstructive sleep apnea hypopnea syndrome (OSAHS) compared to Friedman classification. While Friedman is simpler, AG200 provides a better localization of obstruction sites.

Keywords:
Obstructive sleep apnea hypopnea syndromefriedman classificationupper airway pressure measurement

More Related Videos

Image Acquisition using Portable Sonography for Emergency Airway Management
07:31

Image Acquisition using Portable Sonography for Emergency Airway Management

Published on: September 28, 2022

3.2K
Endotracheal Intubation Using a Flexible Intubation Endoscope as a Standardized Model for Safe Airway Management in Swine
04:30

Endotracheal Intubation Using a Flexible Intubation Endoscope as a Standardized Model for Safe Airway Management in Swine

Published on: August 25, 2022

4.4K

Related Experiment Videos

Last Updated: Apr 13, 2026

Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways
08:21

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

Published on: April 7, 2023

2.7K
Image Acquisition using Portable Sonography for Emergency Airway Management
07:31

Image Acquisition using Portable Sonography for Emergency Airway Management

Published on: September 28, 2022

3.2K
Endotracheal Intubation Using a Flexible Intubation Endoscope as a Standardized Model for Safe Airway Management in Swine
04:30

Endotracheal Intubation Using a Flexible Intubation Endoscope as a Standardized Model for Safe Airway Management in Swine

Published on: August 25, 2022

4.4K

Area of Science:

  • Otorhinolaryngology
  • Sleep Medicine
  • Medical Devices

Background:

  • Obstructive sleep apnea hypopnea syndrome (OSAHS) diagnosis relies on accurate localization of airway obstruction.
  • Current diagnostic methods like Friedman classification have limitations in pinpointing obstruction sites.

Purpose of the Study:

  • To compare the diagnostic accuracy of the AG200 (Sleep Monitoring Obstructive Locator, Apneagraphy) system with Friedman classification for OSAHS obstructive localization.
  • To evaluate the effectiveness of AG200 in identifying dynamic changes in upper airway obstruction.

Main Methods:

  • Seventy-seven patients diagnosed with OSAHS via polysomnography were monitored using the ArthroCare AG200 system.
  • Data collected included upper airway-esophageal pressure, Friedman classification, Friedman tongue position (FTP), and tonsil size.
  • Analysis focused on the relationship between Friedman classification and AG200 measurements of obstructive planes.

Main Results:

  • Friedman classification showed a higher prevalence of Type III obstruction.
  • Increasing Friedman scale and FTP correlated with increased lower airway obstruction.
  • AG200 analysis indicated predominantly upper airway obstruction (66.23%) versus lower obstruction (12.99%).
  • Tonsil size did not significantly influence obstruction classification by either method.

Conclusions:

  • Friedman classification is operator-friendly but may lack accuracy in localizing obstruction.
  • The AG200 system provides dynamic, real-time localization of airway obstruction, complementing physical and imaging tests.
  • Combining AG200 with other methods is recommended for accurate pre-surgical planning, particularly for procedures like UPPP.