Archives of otolaryngology--head & neck surgery · 1993
Acoustical factors of noise created by suctioning middle ear fluid.
СтатьяНазвание и аннотация: Перевод в очереди
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Wetmore R F, Henry W J, Konkle D F
Аннотация
OBJECTIVE: To quantify the intensity, spectral content, and duration of exposure for suction noise created during aspiration of middle ear fluid following myringotomy.
DESIGN: Case series.
SETTING: Tertiary care center.
PATIENTS OR OTHER PARTICIPANTS: Convenience sample of 245 myringotomies performed on 124 patients ranging in age from 6 months to 14 years (mean age, 2 years 8 months).
MAIN OUTCOME MEASURES: Intensity, spectral content, and duration of exposure associated with suction noise were defined by electroacoustic analysis of high-fidelity tape recordings of the noise created during suctioning middle ear fluid.
RESULTS: The intensity of suction noise ranged from 74 to 117 dB; most acoustic energy was concentrated in the frequency range between 1.7 and 6.0 kHz, and the duration of exposure varied from 4 to 23 seconds.
DESIGN: Case series.
SETTING: Tertiary care center.
PATIENTS OR OTHER PARTICIPANTS: Convenience sample of 245 myringotomies performed on 124 patients ranging in age from 6 months to 14 years (mean age, 2 years 8 months).
MAIN OUTCOME MEASURES: Intensity, spectral content, and duration of exposure associated with suction noise were defined by electroacoustic analysis of high-fidelity tape recordings of the noise created during suctioning middle ear fluid.
RESULTS: The intensity of suction noise ranged from 74 to 117 dB; most acoustic energy was concentrated in the frequency range between 1.7 and 6.0 kHz, and the duration of exposure varied from 4 to 23 seconds.