PMID: 591778Nov 1, 1977

Otoadmittance measurements in patients with rheumatoid arthritis

The Journal of Laryngology and Otology
D A MoffatW P Gibson

Abstract

Analysis of middle ear function has for many years been accomplished by acoustic impedance measurements and this has proved of great clinical value. The vectors which contribute to impedance are functions of mass, stiffness and resistance of the system and information about these components may be obtained by use of the otoadmittance meter. The shape of the tympanogram may be altered both by pathologies which change the relative magnitude of the vectors and by variation in the probe tone frequency. Patients with rheumatoid arthritis (55 ears) were compared with a series of controls (50 ears); 38% of 'rheumatoid ears' demonstrated a marked notch on the 660 Hz susceptance curve whilst only 8% of the control group showed this abnormality. The pattern suggests a decrease in the stiffness of the transducer mechanism in rheumatoid arthritis.

References

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Citations

Jun 1, 1995·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·J P Harris, A F Ryan
Nov 14, 2012·The Journal of Laryngology and Otology·M J Mason, M R B Farr
Jan 1, 1997·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·P GianniniG Auletta
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Feb 1, 1986·The Journal of Laryngology and Otology·G R Shone, D A Moffat
Nov 18, 2003·Clinical Otolaryngology and Allied Sciences·J Mathews, B N Kumar
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Jun 9, 1998·Annals of the New York Academy of Sciences·J P HarrisM C Chen
Aug 1, 1990·Annals of the Rheumatic Diseases·A Siamopoulou-MavridouH M Moutsopoulos
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Related Concepts

Tympanometry
Rheumatoid Arthritis
Tympanic Cavity
Dysacusis
Tympanic Membrane Structure

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