[Evaluation of hearing results after tympanoplasty according to the classification of the development degree for pars flaccid cholesteatoma].

Our surgical treatment for middle ear cholesteatoma is based on the following 2 concepts: (1) Preservation of the physiological morphology and function of the middle ear, that is, maximal preservation of the posterior wall of the external auditory meatus and the middle ear mucosa and (2) Careful resection of the matrix membrane of the cholesteatoma through the continuity of the matrix membrane. In case the cholesteatoma matrix membrane is ruptured, a staged operation should be performed to prevent the development of residual cholesteatoma from the residual matrix. In this study, we classified a total of 238 cases of the pars flaccida cholesteatoma primary operated on Osaka Red Cross Hospital between January 2006 and March 2008 according to the Classification and Staging of Cholesteatoma proposed in 2010.

Basic fibroblast growth factor combined with atelocollagen for closing chronic tympanic membrane perforations in 87 patients.

Objective: To present the clinical results of closing chronic tympanic membrane (TM) perforations using basic fibroblast growth factor (bFGF) combined with an atelocollagen/silicone bilayer membrane patch.

Study Design: Closure of TM perforations in 87 patients was attempted using bFGF, which is thought to promote the regeneration of TM tissues by facilitating the growth of fibroblasts and collagen fibers.

Methods: Under an operating microscope, the margin of the perforation was trimmed, and a piece of an atelocollagen/silicone bilayer membrane was placed in the perforation with the silicon layer facing outward and then infiltrated with 0.

Ear-pick injury as a traumatic ossicular damage in Japan.

This retrospective study examined the etiology and treatment results for traumatic, conductive hearing loss in 22 patients who underwent surgery between 1998 and 2008 at Osaka Red Cross Hospital. All patients underwent computed tomography (CT) of the temporal bone preoperatively. The ear surgery comprised closure of the ruptured tympanic membranes and restoration of the sound-transmitting function of the ossicular chain.

[Clinical study of congenital cholesteatoma of the middle ear].

We studied 35 ears of 34 patients with congenital cholesteatoma who were operated between June 1992 and May 2003, focusing on the localization and progression of congenital cholesteatoma. Patients were 2 to 55 years of age. Congenital cholesteatoma was diagnosed based on two intraoperative findings: 1) no continuity between the tympanic membrane and cholesteatoma, 2) no presence of perforation, retraction, or granulation of the tympanic membrane.

[Congenital auditory ossicle malformation without external ear abnormality].

In 29 ears of 24 patients with auditory ossicle malformation, but without external ear abnormalities, who were operated on at our clinic in the 10 years between June 1993 and June 2002, we studied the condition of ossicles, preoperative examination, surgical procedures, and postoperative hearing improvement. Our study did not include patients with cholesteatoma or those with only fixed stapes but without ossicular deformity. Samples were 12 ears of 11 men and 17 ears of 13 women.