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

Pressure Gauges01:20

Pressure Gauges

Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...
Bioreactor Controls-I01:28

Bioreactor Controls-I

Maintaining optimal conditions within fermenters is essential for maximizing microbial productivity and ensuring process efficiency. This lesson focuses on key parameters—temperature, foam, pH, carbon dioxide, oxygen, and pressure—and their precise measurement and control strategies in fermentation systems.Temperature ControlTemperature regulation is critical due to the exothermic nature of many fermentation processes. In small laboratory fermenters, temperature is commonly monitored using...

You might also read

Related Articles

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

Sort by
Same author

Disruption of Epidemic Patterns in Community-Acquired Respiratory Infections Post-Covid-19 in France: A 5-Year Analysis Using the French Pediatric and Ambulatory Research of Infectious Diseases Network.

The Pediatric infectious disease journal·2025
Same author

Impact of Respiratory Syncytial Virus Immunization on the Rate of Pediatric Acute Otitis Media: A Time-series Analysis.

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America·2025
Same author

Diagnostic value of preoperative joint aspiration for periprosthetic shoulder infection: analysis of microbiological aspects and preoperative ICM minor criteria.

Archives of orthopaedic and trauma surgery·2025
Same author

Characteristics of Children Hospitalized for Acute COVID-19 in France From February 2020 to December 2023.

The Pediatric infectious disease journal·2025
Same author

Did the resurgence of childhood lower respiratory infections offset the initial benefit of COVID-19-related non-pharmaceutical interventions in children? A time-series analysis.

BMC medicine·2025
Same author

Comparing NIRS and Pulse Oximetry for Cerebral Oxygen Saturation During Hypoxia Testing.

Medical sciences (Basel, Switzerland)·2024

Related Experiment Video

Updated: Jun 12, 2026

Bilayer Microfluidic Device for Combinatorial Plug Production
07:03

Bilayer Microfluidic Device for Combinatorial Plug Production

Published on: December 1, 2023

Pressure regulating ear plug testing in a pressure chamber.

Masen Dirk Jumah1, Miriam Schlachta, Matthias Hoelzl

  • 1Department of Otolaryngology, Head & Neck Surgery, Campus Charitn Mitte, Charité-University Medicine Berlin, Germany. masen.jumah@charite.de

Aviation, Space, and Environmental Medicine
|June 15, 2010
PubMed
Summary
This summary is machine-generated.

Pressure-regulating earplugs (PREP) significantly improved subjective comfort during air travel by reducing ear pressure changes. Continuous impedance measurements in a pressure chamber were more effective at identifying Eustachian tube dysfunction than standard tests.

More Related Videos

A Performance-testing Platform for a Conduction Micropump with an FR-4 Copper-clad Electrode Plate
06:46

A Performance-testing Platform for a Conduction Micropump with an FR-4 Copper-clad Electrode Plate

Published on: October 9, 2017

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
08:53

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

Published on: December 3, 2016

Related Experiment Videos

Last Updated: Jun 12, 2026

Bilayer Microfluidic Device for Combinatorial Plug Production
07:03

Bilayer Microfluidic Device for Combinatorial Plug Production

Published on: December 1, 2023

A Performance-testing Platform for a Conduction Micropump with an FR-4 Copper-clad Electrode Plate
06:46

A Performance-testing Platform for a Conduction Micropump with an FR-4 Copper-clad Electrode Plate

Published on: October 9, 2017

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
08:53

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

Published on: December 3, 2016

Area of Science:

  • Otolaryngology
  • Aerospace Medicine
  • Biomedical Engineering

Background:

  • Middle ear barotrauma is a common issue during flights, often linked to Eustachian tube (ET) dysfunction.
  • Pressure-regulating earplugs (PREP) are designed to alleviate symptoms associated with pressure changes.

Purpose of the Study:

  • To evaluate the effectiveness of PREP in managing middle ear barotrauma symptoms.
  • To compare diagnostic methods for identifying ET dysfunction.

Main Methods:

  • 21 patients with a history of pressure equalization problems during flight were studied.
  • Eustachian tube function was assessed using exploratory tests and a pressure chamber with continuous impedance measurement.
  • Eardrum deflection, pressure-equalizing maneuvers, and subjective patient states with and without PREP were analyzed.

Main Results:

  • Continuous impedance measurement in a pressure chamber identified ET dysfunction more frequently than tympanometry or the Valsalva test.
  • PREP use slowed the rate of pressure changes in the ear canal.
  • Patients reported significantly better subjective comfort when using PREP compared to not using them.

Conclusions:

  • Continuous impedance measurement in a pressure chamber is a promising method for diagnosing ET dysfunction.
  • While PREP did not directly improve ET function, they significantly enhanced patient comfort during pressure fluctuations.
  • Further validation of the impedance measurement technique is warranted.