Related Experiment Video
Updated: Aug 7, 2026

Endaural Endoscopic Atticoantrotomy (Retrograde Mastoidectomy) using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
External Otitis: A Challenge in Management
1University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, TX 75235-9035, USA.
Abstract:
The bacterial cause of external otitis was first identified during World War II, and our understanding of this condition and its management has been relatively static until recently. The use of fluoroquinolones to treat pseudomonas infections has focused attention on topical therapy for external otitis and single-drug oral therapy for skull-base osteomyelitis, which arises as a complication of external otitis. This article reviews the pathophysiology of external otitis, outlines management options with special attention to topical therapy, and presents management options for skull-base osteomyelitis.
Insights
External otitis management, including bacterial causes and complications like skull-base osteomyelitis, is reviewed. Recent advances focus on topical fluoroquinolone therapy for infections and osteomyelitis.
Area of Science:
- Infectious Diseases
- Otolaryngology
- Microbiology
Background:
- External otitis (swimmer's ear) understanding and treatment have remained largely unchanged since World War II.
- Pseudomonas infections are a common cause of external otitis.
- Skull-base osteomyelitis is a serious complication of external otitis.
Purpose of the Study:
- To review the pathophysiology of external otitis.
- To outline current and emerging management options for external otitis.
- To present treatment strategies for skull-base osteomyelitis.
Main Methods:
- Literature review of external otitis and skull-base osteomyelitis.
- Analysis of current treatment guidelines and emerging therapies.
- Focus on topical antimicrobial therapy, particularly fluoroquinolones.
Main Results:
- Fluoroquinolones offer effective topical treatment for Pseudomonas aeruginosa infections in external otitis.
- Single-drug oral therapy is a viable option for skull-base osteomyelitis.
- Topical therapy is increasingly emphasized for external otitis management.
Conclusions:
- Recent advancements have improved the management of external otitis and its complications.
- Topical fluoroquinolone therapy represents a significant development in treating Pseudomonas-related external otitis.
- Effective management of skull-base osteomyelitis is crucial to prevent severe outcomes.
Related Concept Videos
Angle Closure Glaucoma: Treatment
Tonsillitis II: Management
Chronic Obstructive Pulmonary Disease-V: Management
Smoking Cessation
Chronic Obstructive Pulmonary Disease-V: Nursing Management
Assessment
Pleural Effusion II: Symptoms and Management
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
Endocarditis III: Medical Management

