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Our Experience with Labyrinthine Fistula: Prospective Hearing Outcomes
Kathyayini N Shivayogimath1, Nisha Kumari1, Roohie Singh1
1Department of ENT-HNS, Command Hospital (Eastern Command), Kolkata, India.
Summary
Meticulous surgical removal of cholesteatoma preserves hearing in most patients and avoids iatrogenic hearing loss. Advanced MRI techniques can help diagnose labyrinthine breaches during evaluation.
Area of Science:
- Otolaryngology
- Neurosurgery
- Medical Imaging
Background:
- Chronic otitis media with cholesteatoma is a destructive middle ear infection.
- It can cause bone erosion and potentially lead to labyrinthine fistula.
Purpose of the Study:
- To evaluate the outcomes of cholesteatoma removal surgery.
- To assess hearing preservation and the incidence of iatrogenic sensorineural hearing loss (SNHL).
- To explore advanced imaging for diagnosing labyrinthine breaches.
Main Methods:
- A prospective observational study of 12 patients with cholesteatoma.
- Pre-operative audiological and radiological assessments.
- Post-operative audiological assessment.
Main Results:
- Hearing preservation was achieved in 91.7% of patients.
- No cases of iatrogenic sensorineural hearing loss were reported.
- Meticulous surgical technique is key to successful outcomes.
Conclusions:
- Complete cholesteatoma removal is beneficial and safe when performed meticulously.
- Magnetic Resonance Imaging T2 Diffusion Weighted (MRI- T2 DW) may aid in diagnosing membranous labyrinthine breach.
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