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 Experiment Videos

Nasal flow limitation in children.

D N Pickering1, C S Beardsmore

  • 1Department of Child Health, Leicester University, United Kingdom.

Pediatric Pulmonology
|February 19, 1999
PubMed
Summary

Smaller children do not have relatively larger nasal airways than intrathoracic airways. External nasal stents and decongestants significantly improve nasal airflow and patency in children.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Exclusive viral wheeze and allergic wheeze: evidence for discrete phenotypes.

The European respiratory journal·2011
Same author

The shifting sands of research ethics and governance: effect on research in paediatrics.

Archives of disease in childhood·2006
Same author

Standardizing lung function laboratories for multicenter trials.

Pediatric pulmonology·2006
Same author

Ethical issues in lung function testing in children.

Paediatric respiratory reviews·2005
Same author

Are ethnic differences in lung function explained by chest size?

Archives of disease in childhood. Fetal and neonatal edition·2005
Same author

Breath-hold MRI in evaluating patients with pectus excavatum.

The British journal of radiology·2001

Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology

Background:

  • Nasal congestion from colds can worsen in children due to narrow nasal passages.
  • Understanding the relative resistance of nasal and intrathoracic airways is crucial for pediatric respiratory health.

Purpose of the Study:

  • To test if smaller children have proportionally larger nasal airways than intrathoracic airways.
  • To evaluate the impact of nasal stenting and a decongestant on nasal patency and airflow.

Main Methods:

  • Fifty-four healthy children performed forced vital capacity (FVC) maneuvers through the mouth and nose.
  • Measurements were repeated with an external nasal stent (Breathe Right strip) and after xylometazoline nasal spray.
  • The degree of nasal airflow limitation was assessed using the %Sup index.

Main Results:

  • Nasal airflow (peak inspiratory/expiratory flow, mid-inspiratory/expiratory flow) was significantly lower than oral airflow.
  • The %Sup index, indicating relative nasal airway resistance, was not correlated with height.
  • Both the external nasal stent and xylometazoline significantly increased nasal airflow and the %Sup index.

Conclusions:

  • There is no evidence that the relative resistance of nasal and intrathoracic airways changes with height in children.
  • The %Sup index is a practical measure for assessing nasal airway patency.
  • Nasal stenting and decongestants effectively improve nasal airflow in children.

Related Experiment Videos