The Wideband Acoustic Immittance Data in Thai Normal Hearing and Conductive Hearing Loss Adults

NCT06251817 | Enrolling By Invitation

• 1 other identifier: 67/1-2-2-1-001
• Study Type: observational
• Target: 290
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this descriptive study is to collect the wideband immittance data in Thai normal hearing and conductive hearing loss adults. The main questions it aims to answer are:

• pure tone audiometry
• Tympanometry with ipsilateral acoustic reflex
• Wideband acoustic immittance

Conditions

Normal Hearing; Conductive Hearing Loss, Middle Ear

Keywords

wideband acoustic immittance; Normal hearing; Thai adults; Conductive hearing loss; Absorbance

Outcome Measures

Primary Outcomes (1)

• Normative data of wideband acoustic immittance in Thai normal hearing adults

  Normative data of wideband acoustic immittance refers to wideband absorbance at peak pressure and wideband absorbance at ambient pressure at across frequency (226 to 8000 Hz.)

  3-4 months

Secondary Outcomes (1)

• The wideband acoustic immittance data in Thai adults conductive hearing loss

  16-18 months

Eligibility Criteria

• Age: 18 Years - 59 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Thai adults 18 to 59 years old who have normal hearing 245 participants and conductive hearing loss 45 participants

You may qualify if:

• Normal group
• Thai adults (18-60 years old)
• Pure-tone air-conduction thresholds ≤ 25 dB HL, measured at audiometric frequencies 250, 500, 1000, 2000, 3000, 4000, 6000 and 8000 Hz and air-bone gab \< 10 dBHL at frequencies 500, 1000, 2000 and 4000 Hz
• Type A tympanogram with present ipsilateral acoustic reflex
• No diagnosis of middle ear disease
• No history of middle ear surgery
• Normal finding in otoscopic examination
• Conductive hearing loss group
• Thai adults (18-60 years old)
• Pure-tone air-conduction thresholds \> 25 dB HL, measured at audiometric frequencies 250, 500, 1000, 2000, 3000, 4000, 6000 and 8000 Hz and air-bone gab \> 10 dBHL at frequencies 500, 1000, 2000 and 4000 Hz at least 2 frequencies in one ear
• Type A, As or Ad tympanogram with absent ipsilateral acoustic reflex
• Normal finding in otoscopic examination
• There is an appointment for exploration middle ear within 2 months

You may not qualify if:

• Have previously had middle ear surgery
• Have an earache
• Type B or C tympanogram
• Volunteers who do not cooperate in audiometry test or unable to do audiometry test

Sponsors & Collaborators

• Khon Kaen University: lead
• Prince of Songkla University: collaborator
• Chiang Mai University: collaborator

Study Sites (1)

Department of otolaryngology

Khon Kaen, 40002, Thailand

Location

MeSH Terms

Conditions

Hearing Loss, Conductive

Condition Hierarchy (Ancestors)

Hearing Loss; Hearing Disorders; Ear Diseases; Otorhinolaryngologic Diseases; Sensation Disorders; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: The collaborative Research Grants of CMU-KKU-PSU Cooperation Project

Study Record Dates

• First Submitted: February 1, 2024
• First Posted: February 9, 2024
• Study Start: February 5, 2024
• Primary Completion: October 5, 2025
• Study Completion: February 26, 2026
• Last Updated: July 26, 2024

Record last verified: 2024-07

Locations

TH (1)