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Canal-down mastoidectomy: experience in 81 cases
1Department of Otolaryngology, Port Moresby General Hospital, Papua New Guinea.
Summary
This study on chronic suppurative otitis media in Papua New Guinea found that adults are most affected. The canal-wall-down mastoidectomy is recommended for these patients due to limited follow-up.
Area of Science:
- Otolaryngology
- Infectious Diseases
Background:
- Chronic suppurative otitis media (CSOM) is a prevalent condition, particularly in regions with limited healthcare access.
- Cholesteatoma, a common complication of CSOM, poses significant risks if left untreated.
Purpose of the Study:
- To identify common presentations and findings in patients with cholesteatomatous and non-cholesteatomatous CSOM in Papua New Guinea.
- To determine an optimal surgical management strategy for long-term safety in patients with minimal postoperative follow-up.
Main Methods:
- A retrospective case series was conducted at Port Moresby General Hospital.
- Eighty-one patients diagnosed with CSOM, with or without cholesteatoma and complications, were included.
- The canal-down (modified radical) mastoidectomy with wide meatoplasty was the surgical intervention used.
Main Results:
- Adults, predominantly males, were more frequently affected (median age 24 years).
- Otorrhea was the most common presentation; cholesteatoma and granulation were frequent operative findings.
- Complications included facial paralysis (6% pre-op, 4% post-op), high incidence of 'wet ear', and significant intracranial complications like meningitis and sinus thrombosis, leading to seven deaths (9%).
Conclusions:
- Late presentations and poor follow-up in Papua New Guinea are linked to health awareness, socioeconomic factors, and healthcare system limitations.
- The canal-wall-down technique with wide meatoplasty is recommended as a safe, one-time treatment for CSOM with or without cholesteatoma and complications in this population.