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

Pulmonary Function Tests01:25

Pulmonary Function Tests

501
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
501
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

2.7K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
2.7K
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

3.4K
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
3.4K
Respiratory Capacities01:24

Respiratory Capacities

951
Respiratory capacities are crucial indicators of lung function, representing the maximum amount of air an individual's respiratory system can handle during various breathing phases.
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
951
Asthma-IV: Diagnostic and Management01:30

Asthma-IV: Diagnostic and Management

2.8K
The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
2.8K
Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

2.0K
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
2.0K

You might also read

Related Articles

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

Sort by
Same author

Reactance inversion in moderate to severe persistent asthma: low birth weight, prematurity effect, and bronchodilator response.

The Journal of asthma : official journal of the Association for the Care of Asthma·2024
Same author

[Tritherapy with cystic fibrosis transmembrane conductance regulator protein modulators in cystic fibrosis].

Andes pediatrica : revista Chilena de pediatria·2023
Same author

[Intravenous magnesium sulfate in asthmatic exacerbation: is it a useful and safe therapy?]

Andes pediatrica : revista Chilena de pediatria·2023
Same author

Impulse oscillometry in preschool children with persistent asthma can predict spirometry at school age.

Pediatric pulmonology·2023
Same author

"Reactance inversion" at low frequencies during lung function measurement by impulse oscillometry in children with persistent asthma<sup></sup>.

The Journal of asthma : official journal of the Association for the Care of Asthma·2021

Related Experiment Video

Updated: Nov 2, 2025

Conducting Respiratory Oscillometry in an Outpatient Setting
14:49

Conducting Respiratory Oscillometry in an Outpatient Setting

Published on: April 8, 2022

7.8K

Evolutionary lung function evaluated by impulse oscillometry in preschoolers with asthma.

Ramiro González Vera1, Mónica Saavedra Bentjerodt1, Alberto Vidal Grell1

  • 1Centro de Enfermedades Respiratorias Pediátricas, Clínica Las Condes, Santiago, Chile.

Andes Pediatrica : Revista Chilena De Pediatria
|June 9, 2021
PubMed
Summary
This summary is machine-generated.

Impulse oscillometry (IOS) in preschool children with asthma shows significant improvement after one year, especially in uncontrolled cases. However, lung function often remains altered, necessitating further research into asthma phenotypes.

More Related Videos

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

5.9K
Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique
13:10

Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique

Published on: May 15, 2013

57.7K

Related Experiment Videos

Last Updated: Nov 2, 2025

Conducting Respiratory Oscillometry in an Outpatient Setting
14:49

Conducting Respiratory Oscillometry in an Outpatient Setting

Published on: April 8, 2022

7.8K
Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

5.9K
Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique
13:10

Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique

Published on: May 15, 2013

57.7K

Area of Science:

  • Pediatric Pulmonology
  • Respiratory Medicine
  • Asthma Research

Background:

  • Impulse oscillometry (IOS) is a valuable tool for assessing lung function in young children.
  • Asthma affects a significant number of preschoolers, requiring effective monitoring methods.
  • Understanding the longitudinal changes in lung function is crucial for managing pediatric asthma.

Purpose of the Study:

  • To describe alterations and the one-year evolutionary profile of impulse oscillometry (IOS) in preschool children diagnosed with asthma.
  • To evaluate changes in IOS parameters and bronchodilator responsiveness (BR) over a 12-month period.
  • To investigate the influence of asthma control status and atopy on IOS changes.

Main Methods:

  • Sixty-two preschool children with asthma underwent IOS at baseline and after one year.
  • Comparisons were made for the proportion of altered IOS and positive bronchodilator response (BR+).
  • Statistical analyses included McNemar's test and Student's t-test, with sub-analyses for asthma control and atopy.

Main Results:

  • The prevalence of altered IOS decreased from 80.6% to 64.5% (p=0.04) over one year.
  • Bronchodilator responsiveness (BR+) increased from 77.4% to 83.9%.
  • Children with uncontrolled asthma showed significant improvements in X5 and D5-20, unlike those with controlled asthma. Atopic, uncontrolled asthmatics improved X5, AX, and D5-20.

Conclusions:

  • Impulse oscillometry (IOS) reveals significant alterations in preschoolers with uncontrolled asthma, which lessen over a year but often persist.
  • Bronchodilator responsiveness (BR+) remains prevalent, indicating ongoing airway obstruction.
  • Further research is needed to identify distinct preschool asthma phenotypes and their treatment responses.