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Results for “Stapes Surgery”

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At least 1,009 records · Page 56Linked to original sources
PubMed1986

Use of the neodymium/yttrium aluminum garnet laser in middle ear surgery: a preliminary report.

Clinical usefulness of the neodymium/yttrium aluminum garnet (Nd:YAG) laser in surgery of the middle ear is unproven. An animal study was designed to examine the influence of Nd:YAG laser irradiation on cochlear potentials following vaporization of the stapes. Electrocochleagraphic changes were observed in two of the five animals studied, and caution is advised before using this instrument in humans.

Animals↗
PubMed1995

[Facial nerve abnormalities in malformed temporal bone].

Between 1987 and 1993, 4500 tympanoplasties and stapedectomies were performed at the ENT Department of the University of Würzburg. In 134 cases, surgery was performed for malformation of the middle ear. The surgery reports of these patients were analyzed for anomalies of the facial nerve. Forty cases (29.9%) showed an anomaly of the facial nerve, more often congenital aural atresia or major malformation (30.4%) than minor malformation (29.1%). The most frequent finding was a dislocation of the nerve over the oval niche and resulting narrowing of the oval window (22 cases). Eleven cases showed the facial nerve without bony covers, in two cases there was an exposed nerve over the oval niche. An acute-angled course between horizontal and vertical segment in the mastoid, doubling of the nerve, lateralization of the mastoidal segment, and anterior shift of the Fallopian canal in the mastoid were observed once. To reduce the risk of facial nerve injury, high resolution CT scan studies should be performed before surgery in the presence of congenital aural atresia.

Diagnosis, Differential↗
PubMed1993

Stapedectomy. Causes of failure and revision surgery in otosclerosis.

The greatest chance of success in stapedectomy is at the time of the initial procedure. Complications are compounded and successes markedly decreased when revision surgery is attempted. The most common pitfalls encountered in stapedectomy are reviewed in this article. Principles of surgery that have minimized complications and decreased the need for revision procedures in the authors' practices are outlined. Guidelines helpful when considering revision surgery also are presented and specific indications are addressed.

Humans↗
PubMed1997

The Er:YAG laser in ear surgery: first clinical results.

BACKGROUND AND OBJECTIVE: The goal of this study was to gain experiences about the possibilities and limits of the Er:YAG laser for ear operations. STUDY DESIGN/PATIENTS AND METHODS: Eighty-three ear operations were performed with the aid of an Er:YAG laser: 32 stapedotomies, 15 tympanoplasties type III, 10 tympanoplasties type I, 18 ear operations in cholesteatoma, and 8 removals of hyperostosis in the outer ear canal. RESULTS: The Er:YAG laser facilitated stapedotomies and removal of hyperostosis from the outer ear canal. In cases of beginning cholesteatoma, the Er:YAG laser allowed matrix removal of the ear ossicles left in situ. Furthermore, in tympanoplasty it was possible to achieve an osteosynthesis of the auditory ossicles, which was done for the first time during this study. No hearing loss attributable to laser dose was found during postoperative hearing tests. CONCLUSION: The Er:YAG laser seems to become a useful tool in middle ear surgery.

Adolescent↗
PubMed2006

[Dehiscence of the anterior semicircular canal and otosclerosis: a case report].

UNLABELLED: The dehiscence of the anterior semicircular canal is a new clinical entity, it is necessary to consider this when a gusher occurs during stapedial surgery. CASE REPORT: We report a rare case of dehiscence of the anterior canal associated with otosclerosis. This was revealed by a gusher during the initial stapedectomy. At 3 months, an obliteration of the dehiscence was necessary by middle cranial fossa approach (persistant vestibular symptoms), seven months later. Revision stapedial surgery resulted in complete closure of the air-bone-gap. CONCLUSION: High resolution CT scans of the temporal bone are the key to diagnosis. It is necessary to appreciate this pathology with advances in canal and vestibular surgery.

Early Diagnosis↗
PubMed1990

Fitness of civil aviation passengers to fly after ear surgery.

Movements of the tympanic membrane caused by changes in air pressure are conducted to the ossicles of the middle ear. The gliding mechanism of the malleus-incus articulation converts in-and-out movements of the eardrum into up-and-down movements of the stapes, thereby protecting the inner ear from static pressures. In certain ear operations, the replacement of a middle ear ossicle by a prosthesis disjoints the malleus-incus articulation or makes it rigid. Pressure is then transmitted in unattenuated form from the eardrum through the oval window to the inner ear. Impairment of pressure equilibration, for example due to obstructed eustachian tubes, can lead to prosthesis displacement with severe injury to the vestibulocochlear apparatus. Thus, patients should be advised to begin equilibration of pressure at the beginning of descent of commercial airlines or civil aviation flights, and to repeat it a brief intervals.

Acoustic Impedance Tests↗
PubMed2003

Predictive factors in pediatric stapedectomy.

OBJECTIVE/HYPOTHESIS: The objective of the study was to investigate predictive factors in the postoperative hearing outcomes in pediatric stapedectomy. STUDY DESIGN: Retrospective case series. The study was performed in a tertiary academic otological practice. METHODS: The outcome of 66 stapedectomies in children 17 years of age and younger were analyzed according to the 1995 American Academy of Otolaryngology-Head and Neck Surgery Committee on Hearing and Equilibrium guidelines. Factors evaluated included patient age, underlying diagnosis (tympanosclerosis, otosclerosis, congenital fixation), type of footplate graft and type of prosthesis used, associated ossicular abnormalities, and revision surgery. RESULTS: The mean postoperative air-bone gap following stapedectomy in children with tympanosclerotic footplate fixation (24.9 dB [+/-11 dB]) was significantly worse than in patients with an underlying diagnosis of congenital stapes fixation (15.7 dB [+/-9 dB]) or otosclerosis (13.1 dB [+/-3 dB]) (P =.024). Revision stapedectomy was also associated with a poorer outcome, but patient age and prosthesis and graft type did not contribute to the outcome in a statistically significant manner. CONCLUSIONS: Pediatric patients with stapes fixation resulting from tympanosclerosis showed poorer outcomes from stapedectomy than patients with congenital or otosclerotic fixation. Outcomes for congenital or otosclerosis fixation more nearly matched the outcomes in the literature for adult series.

Adolescent↗