Case Of Perilymphatic Fistula Research Articles

Complete Restored Hearing Loss after Excessive Nose Blowing with Various CT Findings

A perilymphatic fistula (PLF) is defined as leakage of perilymph with several possible causes such as superior canal dehiscence through trauma, temporal bone fracture, or sudden pressure change (e.g., skydiving or scuba diving). Pneumolabyrinth can result from temporal bone fracture after trauma, or sudden pressure change in the middle ear or cerebrospinal fluid, such as excessive nose blowing or Valsalva maneuver. A PLF and pneumolabyrinth may occur without trauma, associated with a sudden pressure change in the middle ear. We report two cases of PLF followed by pneumolabyrinth and one case of suspicious PLF without pneumolabyrinth after excessive nose blowing. All three cases were diagnosed as having sensorineural hearing loss and the patients recovered completely after conservative treatment. We report various CT findings of pneumolabyrinth and PLF, from normal CT findings to air pockets in the labyrinth and soft tissue density around the stapes.

Traumatic perilymphatic fistula with the luxation of the stapes into vestibule

A case of perilymphatic fistula with the luxation of the stapes into vestibule was described, which was caused by a direct damage of the eardrum (the patient cleaned the right ear with a cotton swab and received a strong blow to the arm). The moment of injury was characterized by severe pain, a significant hearing loss, the appearance of tympanophonia and vertigo. Clinical examination revealed the eardrum rupture. After perforation healing the hearing did not improve, a high degree of mixed sensorineural hearing loss remained with a bone-air interval of up to 50 dB throughout the tone scale. CT of the temporal bones showed a pneumolabirinth and a change in the malleus position, which made it possible to suggest the presence of a perilymphatic fistula with the luxation of the stapes. The extent of damage was confirmed by surgery. The stapes was removed and the perilymphatic fistula was closed.

A Case of Perilymphatic Fistula Following Parturition

A Case of Perilymphatic Fistula Following Parturition

A case of perilymphatic fistula with pneumolabyrinthine caused by an old temporal bone fracture

A case of perilymphatic fistula with pneumolabyrinthine caused by an old temporal bone fracture

A Case of Perilymphatic Fistula Misdiagnosed as Benign Paroxysmal Positional Vertigo

Perilymphatic fistula (PLF) is an uncommon disease characterized by abnormal leakage of the perilymph from the inner ear into the middle ear. The symptoms of PLF include sudden-onset hearing loss, tinnitus, ear fullness, and vertigo resulting from inner-ear trauma, stapedial surgery or barotrauma such as valsalva, and nose blowing. As nystagmus can be induced by the affected-ear in down position, benign positional paroxysmal vertigo (BPPV) should be considered for differential diagnosis. About 40-50% of PLF patients have experienced spontaneous healing, but surgical repair should be considered when the hearing symptom and dizziness are not alleviated or are aggravated within a few days. Reported herein, with a review of the relevant literature, is a case of PLF initially misdiagnosed as BPPV but where successful fistula repair was finally achieved.

Case of Perilymphatic Fistula Caused by Medially Displaced Tympanostomy Tube

Case of Perilymphatic Fistula Caused by Medially Displaced Tympanostomy Tube

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A case of perilymphatic fistula is reported. The patient was a 58-year-old male, who initially showed moderate conductive deafness in the right ear. However, soon after the furosemide test, his hearing loss worsened and became sensorineural. Electrocochleography revealed the dominant negative SP, and a signs of endlymphatic hydrops.During exploratory surgery, a fistula was found in the posterior part of the round window membrane, and was closed, with improvement vertigo and hearing loss. As no middle ear disorder was found in otological and radiological examinations, the principal factor causing the conductive deafness was speculated to be an air bubble just beneath the footplate.