Biomaterial Database

Audiometric evaluation of infants 12-18 months of age. 1979

B Forman-Franco, and A L Abramson

Behavioral observation audiometry in conjunction with acoustic impedance studies have infrequently been evaluated in the 12-18 month infant population. Seventy-three infants from the neonatal registry had audiological evaluations performed consisting of speech detection and hearing threshold levels, as well as acoustic impedance studies. Complete audiometric results were obtained from 75% (55) of infants during the initial audiologic evaluation; 73% (53) provided binaural tympanograms. Only 50% of the patients cooperated for all four frequencies attempted on acoustic reflex studies with a 4% incidence of absent reflexes. Impedance studies confirmed audiometric findings in 77% of the infants evaluated.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D008297	Male		Males
D012022	Reflex, Acoustic	Intra-aural contraction of tensor tympani and stapedius in response to sound.	Acoustic Reflex
D002652	Child Behavior	Any observable response or action of a child from 24 months through 12 years of age. For neonates or children younger than 24 months, INFANT BEHAVIOR is available.	Behavior, Child
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000158	Acoustic Impedance Tests	Objective tests of middle ear function based on the difficulty (impedance) or ease (admittance) of sound flow through the middle ear. These include static impedance and dynamic impedance (i.e., tympanometry and impedance tests in conjunction with intra-aural muscle reflex elicitation). This term is used also for various components of impedance and admittance (e.g., compliance, conductance, reactance, resistance, susceptance).	Audiometry, Impedance,Electroacoustic Impedance Tests,Impedance Tests, Acoustic,Tympanometry,Acoustic Impedance Test,Electroacoustic Impedance Test,Impedance Audiometry,Impedance Test, Acoustic,Impedance Test, Electroacoustic,Impedance Tests, Electroacoustic,Test, Acoustic Impedance,Test, Electroacoustic Impedance,Tests, Acoustic Impedance,Tests, Electroacoustic Impedance
D001299	Audiometry	The testing of the acuity of the sense of hearing to determine the thresholds of the lowest intensity levels at which an individual can hear a set of tones. The frequencies between 125 and 8000 Hz are used to test air conduction thresholds and the frequencies between 250 and 4000 Hz are used to test bone conduction thresholds.	Audiometries