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[When to suspect a perilymphatic fistula?]
R Bussières1, D Portmann, P Noyon
1Hôtel Dieu de Québec, Service ORL, Canada. ricbussieres@hotmail.com
Revue De Laryngologie - Otologie - Rhinologie
|March 25, 2004
Summary
Diagnosing perilymphatic fistula (PLF) is challenging. Suspect PLF in patients with trauma or ear surgery history, as audiograms are often abnormal, aiding diagnosis.
Area of Science:
- Otolaryngology
- Neurosurgery
- Audiology
Context:
- Perilymphatic fistula (PLF) diagnosis is clinically challenging due to nonspecific symptoms.
- A high index of suspicion is crucial for identifying PLF.
Purpose:
- To identify clinical situations necessitating PLF suspicion.
- To analyze symptoms, signs, and diagnostic tests in confirmed PLF cases.
Summary:
- Retrospective study of 20 PLF patients revealed hearing loss (100%), vertigo (80%), and tinnitus (70%).
- Etiological factors included trauma (85%) and stapedotomy (10%). Audiograms were almost universally abnormal.
- PLF most commonly involved the oval window (90%). Surgical intervention improved hearing (95%), tinnitus (64%), and vertigo (87%).
Impact:
- Highlights the importance of considering PLF in specific patient populations.
- Provides a basis for a diagnostic scale to aid clinicians in PLF evaluation.
- Demonstrates the efficacy of surgical repair for PLF symptoms.