CONDITIONS AFFECTING AUDIOLOGICAL ACCESS
which may be verified with video otoscopy.
Roy F. Sullivan, Ph.D. (11/5/95)
Certain conditions of the external auditory canal (EAC) and of the middle ear (ME), manifest at the tympanic membrane (TM), may influence acoustic and physical access for audiological diagnostic and hearing aid-related procedures. They can be categorized as canal anomalies, endogenous residue, exogenous factors, external otic pathology, TM perforations and status post-surgery. A partial listing of these conditions appears in Table #1, below. Identification and documentation is facilitated by Video Otoscopy
| OTIC CONDITIONS WHICH MAY AFFECT AUDIOLOGICAL ACCESS |
| External Ear |
| Canal Anomalies |
Endogenous Residue |
Exogenous Factors |
External Otic Pathology |
- Collapse
- Congenital
- Exostosis
- Osteoma
- Stenosis
- TMJ effect
|
- Cerumen
- Dequamation
- Exudate
- Effusion (ME)
- Hemorrhagic
- Keratin
- Sanguinous
- Suppuration
|
- Cerumenolytic
- Foreign body
- Medication
- PE tube / lead
- Soap
- Water
|
- Abrasion
- Cholesteatoma
- Chondrodermatitis
- Contusion
- Dermatitis
- Excoriation
- Hematoma
- H. zoster oticus
- Keratoma
- Laceration
- Neoplasm
- Otomycosis
- Perichondritis
|
| Middle Ear |
| TM Perforations |
Post-Surgical Status |
- Acute
- Chronic
- Iatrogenic
- Traumatic
|
- Exc. cholesteatoma
- Exc. malignancy
- Fenestration
- Mastoidectomy
- Intact wall
- Modified radical
- Radical
- PE tube
- Stapedectomy
- Tympanoplasty
|
|