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Delayed labyrinthine fistula in canal wall down mastoidectomy
D Portmann1, D Rezende Ferreira
1Institut Georges Portmann, Bordeaux, France. institut.portmann@wanadoo.fr
Revue De Laryngologie - Otologie - Rhinologie
|March 25, 2004
Summary
Delayed labyrinthine fistula can occur years after canal wall down mastoidectomy. Prompt diagnosis and surgical closure of the fistula are crucial for managing vertigo in these patients.
Area of Science:
- Otolaryngology
- Neurosurgery
- Surgical Pathology
Background:
- Canal wall down mastoidectomy is a surgical procedure to manage chronic otitis media.
- Delayed complications, though rare, can arise years post-surgery.
- Labyrinthine fistula formation is a potential late sequela.
Observation:
- This retrospective review analyzed 5 cases of delayed labyrinthine fistula.
- Patients presented with sudden onset vertigo after a long asymptomatic period.
- Bony erosion of the lateral semicircular canal was confirmed via CT scan, with no recurrent cholesteatoma.
Findings:
- Infection or trauma appeared to trigger fistula formation in all cases.
- Surgical intervention to close the fistula yielded positive outcomes.
- The absence of recurrent cholesteatoma was noted in all reviewed cases.
Implications:
- Canal wall down mastoidectomy carries a risk of late-onset complications.
- Vertigo developing long after mastoid surgery warrants investigation for labyrinthine fistula.
- Early detection and management are vital for successful patient recovery.
