Search PubMed⌕ Search
Home/Archive/PubMed

PubMed · 929082

Respiration audiometry.

A Kankkunen·G Lidén
View original source ↗Export metadata ↓

Abstract

Since 1971 an impedance-plethysmographic method was been used to record changes in the breathing pattern of 218 high-risk infants during acoustic stimulation. The results of this technique, known as respiration audiometry, show that acoustically induced changes in the breathing pattern can be used as a hearing test for very young children. The results fall into four categories: excellent readability (45%), good readability (32%), readable (15%), not readable (8%). Respiration audiometry makes it possible in most cases to ascertain a child's hearing level. The neonatal period and early infancy are the ages best suited for investigations with respiration audiometry. The reliability of this method was found to be good.

Explore related subjects

Acoustic Impedance TestsAcoustic StimulationHumansInfantRespirationJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

A Kankkunen, G Lidén. 1977. Respiration audiometry.. https://doi.org/10.3109/01050397709045002

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed1992

[An electromechanical model of the middle ear].

A dynamic model of the middle ear and mastoid system was designed in order to evaluate basic principles in tympanometry. The model allows controlled simulation of the exact changes in the ear drum's mass and in intratympanic volume and pressure. The contribution of each of these factors to acoustic impedance was measured. We found that the volume values of static, acoustic compliance were equal to the volume of air in a closed cell. There was good correlation between direct measurement of air pressure in the model cell and indirect pressure measurement by tympanometry. We also demonstrated a difference between mechanical displacement of the drum and its displacement by negative pressure. This demonstration of tympanometry using a middle-ear compatible model enables us to understand its principles and helps in the education of students.

Acoustic Impedance Tests↗
PubMed1992

Autoinflation as a treatment of secretory otitis media. A randomized controlled study.

This study was undertaken to evaluate the effect of a new method of autoinflation as an alternative treatment of secretory otitis media. Up to 80% of all children experience one or more episodes of eustachian tube dysfunction and secretory otitis media before school age. Common treatment of this condition is insertion of a ventilation tube in the tympanic membrane. Because of the very high incidence of secretory otitis media in childhood, insertion of ventilation tubes is the most frequently performed operation under general anesthesia in children. In addition to possible anesthetic complications, insertion of ventilation tubes may be associated with purulent suppuration, pathologic findings in the eardrum, and hearing impairment. One hundred children were consecutively randomized to undergo either autoinflation, using a new device, or placed in a control group. The children were between 3 and 10 years of age and were entered into the study after having had secretory otitis media for at least 3 months, as verified by tympanometric findings. Tympanometry was repeated at 2 weeks and at 1, 2, and 3 months after the children were entered into the study. After 2 weeks of autoinflation, the tympanometric conditions were improved in 64% of ears, unchanged in 34%, and deteriorated in the remaining 2%. In the control group, tympanometric findings were improved in 15% of ears, unchanged in 71%, and deteriorated in the remaining 14%.

Acoustic Impedance Tests↗
PubMed1992

A clinical profile of otitis media.

An otitis media with effusion algorithm developed by Paradise et al and tested by Cantekin et al has become the basis for many studies of otitis media. However, a two-point scale algorithm (otitis media with effusion-no otitis media with effusion) may be too ambitious (ie, low specificity) and too optimistic (ie, absence of fluid does not necessarily mean normal ear). We propose a four-point profile that characterizes the condition of the middle ear, and we report the validation of the profile against findings at myringotomy. Statistically, a four-point scale profile would substantially increase powers of statistical tests, compared with a two-point scale algorithm (in studies of the same size), when used to study changes of the middle-ear condition over time or to compare treatment effects.

Acoustic Impedance Tests↗