Pneumolabyrinth: a rare complication of stapes surgery

Area of Science:

• Otolaryngology
• Neurosurgery
• Medical Imaging

Background:

• Pneumolabyrinth, characterized by air entrapment in the inner ear, is a rare but significant complication following stapes surgery.
• Stapes surgery, specifically stapedectomy, aims to restore hearing by addressing ossicular chain issues.

Observation:

• A patient developed sudden hearing loss, tinnitus, and vertigo four weeks post-stapedectomy.
• Physical examination revealed no vestibular deficits, but audiometry indicated profound mixed hearing loss.
• High-resolution computed tomography (CT) of the temporal bone confirmed the presence of pneumolabyrinth.

Findings:

• Exploratory tympanotomy identified a dislodged stapes prosthesis as the cause of the complication.
• Surgical intervention involved closing the middle and inner ear communication with a vein graft and repositioning the prosthesis.
• Post-operative assessment showed complete resolution of vestibular symptoms and significant improvement in hearing thresholds.

Implications:

• This case highlights the importance of recognizing pneumolabyrinth as a potential complication of stapes surgery.
• Timely diagnosis using imaging and prompt surgical management are crucial for successful outcomes.
• Effective treatment can restore hearing function and alleviate debilitating vestibular symptoms, improving patient quality of life.