PEDIATRICS Vol. 87 No. 1 January 1991, pp. 114-116
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Obtaining a Seal with Otic Specula: Must We Rely on an Air of Uncertainty?

ROBERT M. CAVANAUGH JR MD1

1 Department of Pediatrics, State University of New York, Health Science Center at Syracuse

Pneumatic otoscopy is commonly performed to assess tympanic membrane mobility and detect middle ear pathology.1-3 An airtight system with an adequate seal at the acoustic meatus is considered necessary for an optimal evaluation.4 In many instances, however, the speculum does not conform properly to the external ear and air escapes during insufflation.5 Such occurrences introduce uncertainty and may limit accuracy during the examination.6 Objective studies are needed to address this issue and to determine whether further improvements in speculum design are necessary. Therefore, the present study was undertaken to determine the incidence of air leaks at the auditory canal during routine pneumatic otoscopy in pediatric patients.

Submitted on November 20, 1989
Accepted on February 5, 1990




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