The Anatomic Determinants of Perforation Induced Hearing Loss

NCT ID: NCT03271970

Last Updated: 2018-02-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2017-04-30

Study Completion Date

2018-01-03

Brief Summary

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The purpose of this study is to identify factors that may contribute to conductive hearing loss. Conductive hearing loss is a type that is due to a problem with the outer or middle ear. Because of this, sound does not travel through the ear normally. Perforated tympanic membranes of study patients will be photographed during the patient's routine visit using a digital otoscope. These pictures will be used to analyze perforation size as an absolute value as well as a percentage of the tympanic membrane. Audiometric results and CT scans of temporal bone (reports and images) collected as standard of care will be evaluated. Images of CT scans will be imported into a medical imaging software for creation of anatomically realistic 3D models of the middle ear and mastoid air space. Structural analysis on each 3D model will be conducted and analyzed, the volume of middle ear and mastoid air spaces will be recorded, and data points will be correlated with perforation size and location to audiogram results.

Detailed Description

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Conditions

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Conductive Hearing Loss Perforated Tympanic Membrane

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with conductive hearing loss

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Between 18 and 89 years of age
* Confirmed diagnosis of conductive hearing loss secondary to tympanic membrane perforation
* Treated for the above condition by a Duke physician
* Received both a CT temporal bone scan interpreted by a Duke radiologist and audiometry at a Duke-based facility (both tests performed within four weeks of each other), as part of standard pre-operative workup

Exclusion Criteria

* Temporal CT scan with inadequate resolution as per determination of study staff
* Unable to provide written informed consent
* Unable to read and understand English
Minimum Eligible Age

18 Years

Maximum Eligible Age

89 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Duke University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Dennis Frank-Ito, PhD

Role: PRINCIPAL_INVESTIGATOR

Duke University

Other Identifiers

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Pro00073436

Identifier Type: -

Identifier Source: org_study_id

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