The Effects of Ultrasonic Noise Exposure on Human Hearing
- Conditions
- Hearing Loss
- Interventions
- Other: Ultrasonic noise exposureDiagnostic Test: Pure Tone Audiometry
- Registration Number
- NCT03515928
- Lead Sponsor
- Ultrahaptics Ltd
- Brief Summary
The aim of this research is to investigate the effects of ultrasonic noise exposure on the human auditory system (how it effects hearing). Current international regulations concerning ultrasound exposure differs significantly and are based on scarce and outdated scientific data; hence the motivation for this research. A cohort of 20 audiometrically healthy volunteers will undergo pure tone audiometry (PTA); a standard test for hearing sensitivity, at both pre and post exposure to ultrasonic noise (40kHz for 15 min at 120 dB SPL). A subgroup of 10 subjects will be used as a control group. The resulting audiograms will establish the extent of any recoverable loss in hearing sensitivity known as temporary threshold shifts (TTS).
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 16
- Adult, audiometrically healthy
- Underlying/pre-existing hearing impairment
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Noise Exposed Group Ultrasonic noise exposure - Noise Exposed Group Pure Tone Audiometry - Control Group Pure Tone Audiometry -
- Primary Outcome Measures
Name Time Method Temporary Threshold Shifts (TTS) Audiometry will be conducted immediately (with 2 hours) from noise exposure Mild and recoverable hearing loss in sensitivity due to noise exposure will be checked for statistical significance using paired and independent t-test.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Ultrahaptics
🇬🇧Bristol, United Kingdom