The investigators aim to investigate the effect of operating room noise on anesthetist hearing
Study Type
OBSERVATIONAL
Enrollment
60
Assiut university hospital
Asyut, Egypt
Extended high frequency audiometry
pure tone audiometry in the frequency range from 250Hz-20,000Hz
Time frame: 20 minutes
Transient Evoked Otoacoustic Emission
stimulus induced cochlear echos in the frequency range from 1000-4000 Hz
Time frame: 10 minutes
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