PURPOSE: Canalplasty to prevent accumulation of squamous debris has been proposed as an alternative to tympanoplasty for the treatment of tympanic membrane atelectasis and early cholesteatoma. The goal of this article is to report our experience with canalplasty for the treatment of advanced middle ear atelectasis. MATERIALS AND METHODS: A retrospective review was performed on all patients that underwent tympanoplasty or canalplasty at the University of Florida since 1992. Eight ears (seven patients) with severe atelectasis were found to have been treated with canalplasty (without middle ear reconstruction) to marsupialize the retraction pockets. RESULTS: Follow-up was conducted at an average of 22 months. Four ears required repeat surgical intervention after an average of 12 months: three required canal wall down mastoidectomies for cholesteatoma, and a tympanoplasty was necessary in one case for persistent perforation. Four ears not requiring revision were without cholesteatoma or perforation at an average follow-up time of 26 months. Mean audiometric thresholds were stable or improved, irrespective of the need for revision surgery. CONCLUSIONS: Canalplasty may be an alternative for the treatment of atelectasis in selected patients; however, close follow-up after surgery is necessary because of the potential for progression to cholesteatoma.

Adolescent↗

PubMedDate not supplied

Carbon dioxide laser burn of laryngotracheobronchial mucosa.

A CO2 laser fire in the laryngotracheobronchial tree occurred because of an increase in fraction of inspired oxygen to greater than 40%. An endotracheal tube was ignited and caused a severe burn of respiratory mucosa that required treatment in a burn intensive care unit. The patient had surprisingly few immediate respiratory complications and was discharged from the hospital 25 days after the burn.

Burns, Chemical↗

PubMedDate not supplied

Demoplastic fibroma of the mandible. A case report.

Case of a 4-year-old boy with a desmoplastic fibroma of the mandible. Desmoplastic fibromas are benign fibrous neoplasms which are easily confused with other fibrous tumors. Although benign, they usually display aggressive local tissue extension and frequently recur when treated conservatively. At the present time, wide, local excision appears to be the treatment of choice.

Child, Preschool↗

PubMedDate not supplied

Perilymph fistulas. Diagnostic criteria and therapy.

Explore the source record for details and available documents.

Adult↗

PubMedDate not supplied

Cordless telephones: a threat to hearing.

Several patients with documented permanent sensorineural hearing losses secondary to the use of cordless telephones have been evaluated. In the interests of saving space and weight, these units have the ear receiver double as the ringing or bell device. The output of the bell on all of the units we have tested to date has been in the 140-dB range on the A scale. In each instance, the patient held the telephone against the ear when ringing occurred, and in three instances a loud extraneous crack was transmitted. Unlike regular cord-type telephones, these devices have no automatic gain control in the receiver circuit.

Adult↗

PubMedDate not supplied

Temporal bone histopathologic findings in congenital anomalies of the oval window.

The histopathologic findings in five temporal bones from three cases showing various stages of oval window development arrest are presented. The anomalies ranged from complete absence of the oval window to congenital cartilaginous fixation of the stapedial footplate. Surgical approaches fro establishment of a new oval window must take into consideration the frequent association of facial nerve anomalies with anomalies of the oval window.

Ear, Inner↗

PubMedDate not supplied

Myringotomy tube materials: bacterial adhesion and infection.

Postoperative infection after placement of myringotomy tubes is common. Surgeons and manufacturers of surgical devices have frequently substituted one material for another in middle ear prostheses without analyzing the interaction of material and infection. Implant material attributes are reviewed. Scanning electron micrographs are presented that demonstrate characteristic surface differences between materials and between the same material of different manufacturers. A preliminary clinical controlled study of the covariance of purulence with silicone vs fluorocarbon tubes demonstrates statistically significant differences. The implications of this information are discussed.

Adolescent↗