Round window plugging in the treatment of superior semicircular canal dehiscence

Succar, Eric; Manickam, Periakaruppan V.; Wing, Sara; Walter, Jeffrey; Greene, J. Scott; Azeredo, William J.

doi:10.1002/lary.26899

Cited by 28 publications

(18 citation statements)

References 17 publications

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“…To the best of our knowledge, this is the first report in the literature of local-assisted anesthesia with simultaneous RW reinforcement surgery and VSB positioning in a patient suffering from SSCD. The outcome of this new procedure confirmed the results in terms of safety and improvement in auditory and vestibular symptoms related to SSCD using the minimally invasive procedure for RW plugging reported by Silverstein et al (6) and Succar et al (9). The main new finding of this novel procedure is the possibility of using the VSB implant to improve the hearing threshold in patients with associated moderate to severe mixed hearing loss.…”

Section: Discussionsupporting

confidence: 80%

Case Report: Local Anesthesia Round Window Plugging and Simultaneous Vibrant Soundbridge Implant for Superior Semicircular Canal Dehiscence

et al. 2020

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The aim of the present study is to report the outcomes of round window reinforcement surgery performed with the application of a Vibrant Soundbridge middle ear implant (VSB; MED-EL) in a patient with superior semicircular canal dehiscence (SSCD) who presented with recurrent vertigo, Tullio phenomenon, Hennebert's sign, bone conduction hypersensitivity, and bilateral moderate to severe mixed hearing loss. Vestibular evoked myogenic potentials (VEMPs) and high-resolution computed tomography (HRCT) confirmed bilateral superior semicircular canal dehiscence while this was not seen in magnetic resonance imaging. The surgical procedure was performed in the right ear as it had worse vestibular and auditory symptoms, a poorer hearing threshold, and greatly altered HRCT and VEMPs findings. With local-assisted anesthesia, round window reinforcement surgery (plugging) with perichondrium was performed with simultaneous positioning of a VSB on the round window niche. At the one and 3 months follow-up after surgery, VSB-aided hearing threshold in the right ear improved to mild, and loud sounds did not elicit either dizziness or pain in the patient.

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Section: Discussionsupporting

confidence: 80%

Case Report: Local Anesthesia Round Window Plugging and Simultaneous Vibrant Soundbridge Implant for Superior Semicircular Canal Dehiscence

et al. 2020

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“…Although this surgery is a less-invasive treatment option for these patients, it has less efficacy compared with direct dehiscence repair. 19 Postoperative imaging shows soft tissue obliterating the normal air-filled round window niche ( Fig 6). This should not be mistaken for middle ear disease such as glomus tympanicum or cholesteatoma on imaging.…”

Section: Semicircular Canal Dehiscencementioning

confidence: 99%

“…This is performed through a transcanal approach and can be done as an outpatient surgery. Occluding or reinforcing the round window 16 Ward et al, 17 and Succar et al 19 with autologous material can lead to symptom improvement by eliminating the third window effect, but it may also contribute to a conductive hearing loss. Although this surgery is a less-invasive treatment option for these patients, it has less efficacy compared with direct dehiscence repair.…”

Section: Semicircular Canal Dehiscencementioning

confidence: 99%

Beyond Tympanomastoidectomy: A Review of Less Common Postoperative Temporal Bone CT Findings

Carlson

Diehn²,

Lane³

2020

AJNR Am J Neuroradiol

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“…Other techniques such as round window reinforcement and resurfacing without plugging are controversial and not recommended. 50 Surgery can be well tolerated and is most successful in the management of auditory symptoms 26,51 as well as improvement of quality-of-life measures. 52,53 The symptoms least likely to improve are headache, dizziness, imbalance, and brain fog.…”

Section: Treatmentmentioning

confidence: 99%

Superior Semicircular Canal Dehiscence Syndrome

2020

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Superior canal dehiscence syndrome (SCDS) is a vestibular disorder caused by a pathologic third window into the labyrinth that can present with autophony, sound- or pressure-induced vertigo, and chronic disequilibrium among other vestibulocochlear symptoms. Careful history taking and examination in conjunction with appropriate diagnostic testing can accurately diagnose the syndrome. Key examination techniques include fixation-suppressed ocular motor examination investigating for sound- or pressure-induced eye movements in the plane of the semicircular canal. Audiometry, vestibular evoked myogenic potentials, and computed tomography confirm the diagnosis. Corrective surgical techniques can be curative, but many patients find their symptoms are not severe enough to undergo surgery. Although a primarily peripheral vestibular disorder, as first-line consultants for most dizziness complaints, neurologists will serve their patients well by understanding SCDS and its role in the differential diagnosis of vestibular disorders.

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Round window plugging in the treatment of superior semicircular canal dehiscence

Abstract: 4. Laryngoscope, 128:1445-1452, 2018.

Cited by 28 publications

References 17 publications

Case Report: Local Anesthesia Round Window Plugging and Simultaneous Vibrant Soundbridge Implant for Superior Semicircular Canal Dehiscence

Case Report: Local Anesthesia Round Window Plugging and Simultaneous Vibrant Soundbridge Implant for Superior Semicircular Canal Dehiscence

Beyond Tympanomastoidectomy: A Review of Less Common Postoperative Temporal Bone CT Findings

Superior Semicircular Canal Dehiscence Syndrome

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