Search

OBJECTIVE: To identify the length of the long process of the incus to the stapes footplate in patients with otosclerosis. MATERIAL AND METHOD: A study was made in which 40 ears of patients with otosclerosis diagnosed on the basis of their clinical history and their audiogram were included. All patients had high-resolution computed tomography before stapedectomy. The measurement from the long process of the incus to the stapes footplate was made in coronal view. Intraoperative measurement of distance between the stapes footplate and the long process of the incus of the middle ear were made by the surgeon. The prosthesis generally used was the flouroplastic. RESULTS: Length of the prosthesis was between 3.5 and 4.75 mm. The average of measurement from the long process of the incus to the stapes footplate was 4 mm. The length of the prosthesis by tomography was 4 mm vs 4.13 mm introperative, without statistical difference. CONCLUSION: Measurement of the length of the piston in our study were 4 mm. This distance is important for estimating the proper prosthesis length in stapedotomy for treating otosclerosis in our population. [ABSTRACT FROM AUTHOR]

BACKGROUND Intraoperative and late complications are directly related to the surgical technique performed in otoesclerosis surgery. OBJECTIVE To observe if a significant difference exists in the audiologic results of stapedectomy, conventional stapedotomy and inverse stapedotomy in otosclerosis surgery. PATIENTS AND METHODS A comparative study was completed in 100 patients and 96 were included in the study. Audiologic exams were done for control three and six months after surgery. Patients were divided into three groups: Group A with 38 patients with stapedectomy; Group B with 26 patients with conventional stapedotomy and Group C with 32 patients with inverse stapedotomy. RESULTS An air bone gap closure of 10 db for Group A was 78.9%, for Group B was 80.7% and for Group C 87.5%. For a closure of 20 db Group A was 84.2%, for Group B 84.6% and for Group C 90.6%. No statistical significance was found for the groups studied (p < 0.05), however, the percentages were a little in favor of the inverse stapedotomy. CONCLUSIONS The techniques of stapedectomy, conventional stapedotomy and inverse stapedotomy result in favorable audiologic outcomes in otosclerosis surgery. No important comparative results were observed. [ABSTRACT FROM AUTHOR]

BACKGROUND Stapedectomy, as is currently known, is effective in correcting otoesclerosis by conductive hearing loss. Over 90% of patients achieved an improvement hearing that leaves a residual gap of less than 10 dB. Some cases require revision surgery, which represents a major challenge for obtaining satisfactory audiologic results and avoiding complications. OBJECTIVE To analyze audiologic findings and results obtained after revision surgery for stapedectomy in order to compare them with those of other series reported. PATIENTS AND METHODS A retrospective and descriptive study was performed from 1991 to 2004, including 35 cases with revision surgery at Instituto Nacional de Enfermedades Respiratorias (INE R). Among them, 17 patients (48.5%) were initially operated at INER and 18 (51.5%) at other hospitals. RESULTS The main failure causes were a displaced prosthesis in 37.4% and incus necrosis in 20%. In 73.4% of the cases an air bone gap closure to within 20 dB was achieved and in 37.1% to within 10 dB. CONCLUSIONS These results are similar to those found in other series about main causes of audiologic failure after review stapedectomy. Revision stapedectomy has less chance of audiologic success and more chances of complications; however in selected cases it can be beneficial. [ABSTRACT FROM AUTHOR]

OBJECTIVE To assess the incidence, management and results of infantile otosclerosis at Hospital Juarez de Mexico. MATERIAL AND METHODS From January, 1995 to January, 2003 clinical files from the external consultation of the otolaryngological and audiology service of Hospital Juarez de Mexico were analyzed and those from children younger than 16 years with previous clinical diagnosis of otosclerosis were included. RESULTS Twenty-seven files were included, from which 12 were submitted to stapedectomy and 15 were given audiological control, medical management and auditory adaptation. From these, in 9 disease stabilization was observed after auditory control during two years and surgical procedure was proposed then (18-23 years). Three patients received medical management and endocrinological control in who audifluor was given and to other three the use of auditory aid was favorable and they did not received surgical treatment. CONCLUSIONS In patients with data otospongiosis medical management is recommended with auditory control, and once established the disease, stapedectomy may give good results. [ABSTRACT FROM AUTHOR]

BACKGROUND Stapedectomy is a technique used to correct conductive hipoacusia due to otosclerosis. OBJECTIVE To evaluate the functional results in patients operated with hipoacusia. MATERIAL AND METHODS A retrospective and longitudinal study was done, we reviewed 42 clinical files of patients with otosclerosis to evaluate the auditory gain by means of the closing of GAP in the frequencies of 500, 1,000 and, 2,000 Hertz. RESULTS There were a total of 42 patients with 51 operated ears. The average age of 34.6 years and time of evolution from the time of consultation of 10.4 years. Stapedotomies were performed in 90% of the patients, and the rest of the patients had stapedectomy's done to them. CONCLUSIONS 90% of the ears showed auditory gain, with an average closing of GAP by 26 db. [ABSTRACT FROM AUTHOR]