Vol. 98  No. August 2005

A Case of Earpick Injury with Delayed Facial Paralysis        

Satoshi Seno, Mikio Suzuki, Satoshi Sonoda,                      
Hironori Sakurai, Masakazu Hanamitsu and Takeshi Shimizu
(Shiga University of Medical Science)
Teppei Tani
(Kohka Public Hospital)
Eriko Hoshi
(Hikone Municipal Hospital)

      We reported a rare case of ear trauma with delayed facial paralysis, ossicular chain dislocation and perilymph fistula caused by an earpick. A 36-year-old male consulted our clinic with a complaint of left otalgia, hearing loss, tinnitus and dizziness after left ear trauma with an earpick. Otoscopic examination showed perforation of the left ear-drum and pure tone audiometory demonstrated a mixed hearing loss with an average air conduction threshold of 53 dB on the initial examination. He was diagnosed as having a traumatic ear-drum perforation. Left facial paralysis occurred 6 days after the trauma, then recovered after the intravenous steroid treatment. Hearing impairment did not improve after spontaneous closure of the ear-drum perforation, and exploratory tympanoplasty was performed. At surgery, the incus was dislocated and the anterior and posterior crura of stapes were fractured. Perilymphatic leakage from the fractured footplate was noted. The footplate was covered with temporal fascia and ossicular chain reconstruction was performed using the incus on the foot plate as a columella. Post operationally, the hearing threshold improved with an average air conduction threshold of 31.7 dB.

Key words : earpick, ear trauma, facial paralysis, perilymph fistula, tympanoplasty


第98巻8号 目次   Vol.98No.8contents