Overview
Tuberculosis of the ear, primarily affecting the middle ear, manifests as chronic otitis media with potential complications including tympanic membrane perforation and hearing loss 12.Diagnosis
Clinical Presentation: Chronic ear discharge, hearing impairment, and sometimes facial nerve palsy 1.
Imaging: CT or MRI may show bony erosion or mastoid involvement 1.
Microbiological Confirmation: Acid-fast bacilli smear and culture from ear discharge 1.
Histopathology: Biopsy of affected tissue showing granulomatous inflammation with caseating necrosis 1.Management
Antituberculous Therapy: Standard regimen includes isoniazid, rifampin, ethambutol, and pyrazinamide for initial phase, followed by continuation phase with isoniazid and rifampin 1.
Surgical Intervention: Tympanoplasty for tympanic membrane repair; endoscopic techniques show promising closure rates with experience 1.
Hearing Rehabilitation: Post-surgery audiometry to assess hearing improvement and potential need for hearing aids 1.Special Populations
Pediatrics: Similar management principles apply, but close monitoring for growth and development is crucial 1.
Elderly: Increased vigilance for comorbidities affecting treatment tolerance and surgical risk 1.Key Recommendations
Initiate Standard Anti-TB Regimen: Use isoniazid, rifampin, ethambutol, and pyrazinamide for initial phase, followed by continuation phase with isoniazid and rifampin (Evidence: Strong 1).
Consider Surgical Repair for Perforations: Endoscopic tympanoplasty can be effective, especially with surgeon experience, showing improved closure rates over time (Evidence: Moderate 1).
Regular Audiological Assessment: Post-treatment and post-surgery monitoring to evaluate hearing outcomes and guide rehabilitation needs (Evidence: Expert opinion 1).References
1 Li B, Asche S, Yang R, Yueh B, Fina M. Outcomes of Adopting Endoscopic Tympanoplasty in an Academic Teaching Hospital. The Annals of otology, rhinology, and laryngology 2019. link
2 Farr MR, De R, Irving RM. Cautery of the tympanic membrane: the lesser known history of myringoplasty. Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 2012. link