Hearing In Otosclerosis Research Articles

Is there any association between calcium values and otosclerosis?

Aim: Otosclerosis; is an idiopathic disease caused by the occupation of the otic capsule and the stapes base with the spongioform bone. It is the most common type of conductive hearing loss after otitis media in otorhinolaryngology. There are no studies in the literature showing the relationship between blood calcium levels and hearing loss. The aim of this study is to investigate the blood calcium levels and hearing loss of patients with otosclerosis diagnosed retrospectively.Methods: The study was performed case-control study. Patients were divided into two groups: patient and control. The patient group consisted of 40 patients who were operated for otosclerosis in the otolaryngology clinic between 2013 and 2017. Calcium values in the blood biochemistry of these patients and preoperative hearing tests were recorded retrospectively. The control group admitted for any reason, the otolaryngology clinic and consisted of 40 patients with non-ear disease. Calcium values in blood biochemistry and hearing tests performed in outpatient clinic were recorded retrospectively. The hearing of the patients in both groups was recorded by taking the average of the right and left ear.Results: The mean age of the control group was 28 (2.4) (18-60) years. The mean age for the patient group was 32 (2.6) (19-68). No significant difference was observed between the two groups in terms of age (P=0.061). The control group was 10.8 (1.2) dB on the right and the left ear. The mean calcium blood levels in the control group were 9.8 (0.4) mg/dL. The mean right and left ear audiometry of the patient group was 38 (0.6) dB. The mean blood calcium level of the patient group was 11.7 (0.9) dB. There was a significant difference between the control group and the patient group in the audiometry test (P=0.024). There was no significant difference between the patient group and the control group in terms of blood calcium (P=0.078).Conclusion: There was a significant deterioration in hearing in patients with otosclerosis. However, there was no significant increase in blood calcium levels. Therefore, there was no significant relationship between blood calcium level and hearing in otosclerosis.

Hearing Outcome in Stapes Surgery Using Various Biomaterial Prostheses

Aims: To assess the hearing outcome in patients who have undergone stapes surgery using polytetrafluoroethylene (PTFE) and Titanium prosthesis at 1 and 3 months post operatively. Material & Methods: Research design: Prospective study. Setting: ENT department, Pushpagiri Medical College. Study population: All age groups with clinical diagnosis of otosclerosis and air-bone gap more than 15 dB irrespective of sex difference. Patients with Meniere’s disease are excluded. Method: A prospective study was conducted for a period of one and a half years from January 2014 to July 2015 to find out the hearing outcome of stapes surgery in patients with otosclerosis using polytetrafluoroethylene (PTFE) and Titanium prostheses, attending our outpatient department. Results: In this study, 84.21% of ears with polytetrafluoroethylene (PTFE) and 81.81% of ears with titanium were able to achieve good results in terms of Air-Bone gap (ABG) closure (ABG < 20 dB). The average post op hearing following stapes surgery at 3 months improved to near normal levels of 34.12 dB ± 8.95 with an average hearing gain of 19.19 dB with PTFE prosthesis and 30.86 dB ± 5.47 with an average hearing gain of 21.2 dB with titanium which were significant. Conclusion: Stapes surgery is the surgical procedure of choice for otosclerosis. In our study, a significant hearing improvement was seen in majority of cases. None of the factors considered relevant for the success of stapes surgery like age, sex, type of prosthesis appeared to affect the post-operative hearing significantly. Hence stapes surgery can be effectively used to improve hearing in otosclerosis.

Microsurgery of the ear: The Robinson stainless steel stapes prosthesis to restore hearing in otosclerosis

The development and surgical use of the Robinson stainless steel stapes prosthesis for the treatment of hearing loss in otosclerosis will be presented. Over 4000 operations have been performed by the author to date with a success rate of 97%. The anatomy, physiology, and surgical pathology will be presented on color slides, as well as the surgical technique and statistical results. A color motion picture will illustrate the actual microsurgery as observed through the operating microscope. This technique is now one of the most frequently used stapedectomy techniques in the country, with over 10 000 surgical operations performed each year using this prosthesis.

Personal observations of stapes footplate fenestration.

Fenestration of the footplate of the stapes has been suggested as a routine step in the surgical rehabilitation of hearing to be used when other methods to mobilize the stapes have failed. Therefore, it should be carefully evaluated as to its potential ability to improve hearing and to the subsequent changes that may take place within the labyrinth. The hearing improvement obtained by complete true mobilization or where part of the stapes footplate is mobilized in continuity with one intact crura has been shown to be valid by hundreds of surgeons. However, the results of the suggested fenestra ovalis technique for improving and maintaining hearing in otosclerosis should be reviewed. One can in no way doubt the integrity of those proposing footplate fenestration, 1 and indeed there is no reason to. The problem lies simply in the difficult determination of what really happens at the footplate in the large group

Considerations on mobilization of the stapes for otosclerosis.

Stapes mobilization is the most important present-day interest in otology. Most otologists prefer to ascribe its discontinuance some 50 years ago to the lack of technical advantages. The many reports of success in this field would indicate that mobilization of the stapes will remain as another method for the improvement of hearing in otosclerosis. Those interested in mobilization of the stapes are trying to establish the procedure on a firm and lasting basis. However, one need only read everything that has been written on the subject since Rosen's first article appeared in 1952, and the literature of preceding years, to appreciate the many unknown or little understood factors which handicap the otologist and influence his results. Some of these are represented in the tremendous variety of histopathologic changes, their extent and location; the significance of the audiogram, the uncertain results, the incidence of recurrence, and an ignorance of the conditions

Experiences with Transossicular Mobilization of the Stapes

This is a further report on a method of mobilizing the stapes for the improvement of hearing in otosclerosis which does not require an incision and opening into the middle ear cavity. It has proved successful in 58% of selected cases. Recorded attempts to improve hearing date back to the works of Celsus.2It can be said that surgical measures to overcome deafness began in 1801, when Sir Astley Cooper3advocated perforating the ear drum membrane for deafness owing to obstruction of the Eustachian tube. He reported the results in 20 cases. Thereafter for many years the tympanic membranes were opened or removed in the hope of improving hearing. Subsequently, the ossicles, one or all, were removed. In 1876, Kessel6attempted to mobilize the fixed stapes footplate. His ideas were followed by many others; notable among them were Miot,8Blake,1and Jack.5 Probably because

Improvement of hearing in otosclerosis by means of stapes- mobilization operation; report of results and experience.

An important advance in otologic surgery was developed as the result of Rosen's stapes-mobilization operation. This operation has been adequately described by Rosen in various publications. * Other reports have been made by Meurman and Meurman, 9 Scheer,† and Goodhill. 12 In these articles, the historical aspects of this procedure are discussed. Rosen has operated upon many patients within the past three years, and additional reports are constantly appearing from other parts of the world. We should like to add our experiences, which indicate that many patients deafened by otosclerosis can have their hearing restored to practical and even normal levels as the result of this operation. Much progress has been made in a short time. It is true there are unanswered problems, but in time these may be solved. Our experience covers a period of approximately 18 months. During this time considerable effort was expended at first in observation and

Trans-incudal stapedolysis for stapes mobilization in otosclerotic deafness (under audiometric control); a surgical technique for improvement of hearing in otosclerosis is described, utilizing new methods in the stapes approach.

Trans-incudal stapedolysis for stapes mobilization in otosclerotic deafness (under audiometric control); a surgical technique for improvement of hearing in otosclerosis is described, utilizing new methods in the stapes approach.

Restoration of hearing in otosclerosis by transtympanic mobilization of the stapes; preliminary report of fifty cases.

This paper is a preliminary report reviewing the results of 50 cases of clinical otosclerosis treated by the transtympanic method of mobilization of the stapes. Kessel, 1 Boucheron, 2 Miot, 3 and Faraci 4 had reported cases of otosclerosis in which they tried to mobilize the stapes. Boucheron (1888) did 60 cases. Miot (1890), who reviewed 200 cases, described in fair detail his technique of applying pressure by a palate-like instrument on the incudostapedial joint. Rosen, 5 in 1953, described his technique of mobilization, and it is basically his method which was used in operating on the cases which are included in this report. The principle of the operation is to loosen the stapes footplate from its fixed position in the oval window while leaving the ossicular chain intact. With the stapes mobilized in this manner, sound can again be conducted to the cochlea via the physiological ossicular mechanism. SURGICAL

Restoration of hearing in otosclerosis by mobilization of the fixed stapedial footplate; an analysis of results.

Restoration of hearing in otosclerosis by mobilization of the fixed stapedial footplate; an analysis of results.

Short Duration Auditory Fatigue as a Method of Classifying Hearing Impairment

Earlier studies have classified deafness cases into two general groups, those having functional disorders of the middle ear and those having impairments resulting from atrophy of the nerve fibers terminating along the basilar membrane (conductive and nerve deafness types, respectively). Such classifications have been made using bone conduction threshold measurements and unilateral loudness balance results as the basis for differentiation. Bone conduction results, however, are often subject to considerable error while the unilateral loudness balance technique can only be applied to individuals having one normal and one impaired ear. These limitations introduce a need for a completely independent monaural method of classifying deafness types. This is particularly true for the selection of candidates suitable for the fenestration operation for the restoration of hearing in otosclerosis (immobilized stapes). The present paper is concerned with an investigation of short time auditory fatigue as a method of obtaining an impairment analysis. In this study, it was found that the fatigue of the conductively deafened observer was similar to the normal observer except the onset of fatigue was shifted by the amount of the threshold loss. For the nerve deafened observer, on the other hand, the onset of fatigue was found to occur at normal intensity levels. The occurrence of excessive fatigue in one of the nerve type impairment cases investigated appears to offer additional information on the nature of the lesion.

Observations on the Variation in Hearing in Otosclerosis

Observations on the Variation in Hearing in Otosclerosis

The Functional Tests of Hearing in Otosclerosis

The Functional Tests of Hearing in Otosclerosis