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Anatomy of the Ear01:16

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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Updated: May 3, 2026

Endaural Endoscopic Atticoantrotomy Retrograde Mastoidectomy using a Constant Suction Bone-drilling Technique
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Otitis externa.

Jennifer Wipperman1

  • 1Depertment of Family and Community Medicine, University of Kansas School of Medicine - Wichita, 1010 North Kansas, Wichita, KS 67214, USA.

Primary Care
|January 21, 2014
PubMed
Summary
This summary is machine-generated.

Acute otitis externa (AOE) is typically infectious and treated with topical antibiotics and steroids. Chronic otitis externa (COE) management involves identifying underlying causes, with prevention being key for both conditions.

Keywords:
Acute otitis externaAntibioticsChronic otitis externaTopical steroids

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Area of Science:

  • Otolaryngology
  • Infectious Diseases
  • Dermatology

Background:

  • Acute otitis externa (AOE) and chronic otitis externa (COE) are common ear canal conditions.
  • AOE is frequently caused by infections and usually responds well to topical treatments.
  • COE presents greater management challenges, often requiring identification of underlying factors.

Purpose of the Study:

  • To outline the distinct characteristics and management strategies for AOE and COE.
  • To emphasize the importance of etiological identification in chronic cases.
  • To highlight the fundamental role of prevention in managing both acute and chronic otitis externa.

Main Methods:

  • Review of current literature and clinical guidelines for otitis externa.
  • Analysis of treatment approaches for infectious and non-infectious etiologies.
  • Emphasis on diagnostic criteria for differentiating AOE from COE.

Main Results:

  • Topical antibiotic and steroid preparations are effective for most AOE cases.
  • Systemic antibiotics are rarely indicated for AOE.
  • Successful management of COE is contingent upon identifying and addressing underlying causes.

Conclusions:

  • AOE is primarily managed with targeted topical therapy.
  • Effective COE treatment necessitates a comprehensive approach addressing root causes.
  • Preventative measures, including avoiding precipitating factors, are crucial for averting recurrent episodes of otitis externa.