Cochlear implant outcomes in patients with superior canal dehiscence

Puram, Sidharth V.; Roberts, Daniel S.; Niesten, Marlien E F; Dilger, Amanda E.; Lee, Daniel J

doi:10.1179/1754762813y.0000000044

Cited by 13 publications

(8 citation statements)

References 20 publications

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“…In patients older than 18 years, 37 of 116 studies reported postoperative vertigo. A total of 16.8% (446 of 2,651) suffered from vertigo after cochlear implantation . Figure shows the mean age‐correlated occurrence of vertigo after cochlear implantation.…”

Section: Resultsmentioning

confidence: 99%

“…Patients of studies undergoing the RW approach do not have significantly increased vertigo after cochlear implantation, in contrast to studies including patients undergoing cochleostomy. Postoperative vertigo (new onset and perioperatively unchanged vertigo) occurred in 8.8% (532 of 6,120 patients) after cochleostomy and in 5.5% (48 of 868) after RW approach . Patients undergoing RW approach have a significantly lower risk of postoperative vertigo compared with cochleostomy (OR of 0.61; 95% CI 0.45–0.83; P = 0.05).…”

Section: Discussionmentioning

confidence: 99%

“…16 Regarding temporal bone anatomy, Puram et al compared the outcome of patients with or without superior canal dehiscence and concluded similar rates of postoperative dizziness or vertigo for both conditions. 56 Rajan et al examined the role of insertion speed during implantation of the electrode and favor a slow insertion for better preservation of residual hearing and vestibular function. 61 Karimi et al reported on successful treatment of newly occurring vertigo after cochlear implantation by resealing the inserted electrode within the RW.…”

Section: Discussionmentioning

confidence: 99%

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Meta‐analysis of subjective complaints of vertigo and vestibular tests after cochlear implantation

et al. 2018

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Cochlear implantation has a significant impact on subjective vertigo and vestibular receptor function. This is affected by the patient's age at the time of surgery. The surgical technique (round window or cochleostomy) may influence the outcome, but this requires further investigation. Younger patients may compensate better following vestibular dysfunction. Perioperative testing is required to correlate vestibular impairment and subjective complaints. Laryngoscope, 2018 Laryngoscope, 128:2110-2123, 2018.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Meta‐analysis of subjective complaints of vertigo and vestibular tests after cochlear implantation

et al. 2018

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“…17–20 Large dehiscences can be repaired by either occluding the SCD itself or by occluding both exposed ends of the canal. In this study, we created dehiscences of 0.5 to 3.5 mm in length that are typically repaired by occluding the SCD itself.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of Wax Occlusion in the Surgical Repair of Superior Canal Dehiscence in Human Temporal Bone Specimens

Cheng

Kozin

Remenschneider

et al. 2016

Otology &Amp; Neurotology

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Hypothesis Superior canal dehiscence (SCD) repair using surgical bone wax may result in variable outcomes if large wax volumes are applied. Background SCD is a disorder characterized by a pathologic defect in the bony labyrinth of the superior semicircular canal (SSC), resulting in vestibular and/or auditory symptoms. Repair of SCD using bone wax can provide symptomatic relief, but surgical outcomes are variable. These observations may be associated with the inconsistency in the position and extension of intralabyrinthine bone wax during surgical repair. Methods A pathological model of SCD was created using cadaveric human temporal bones and a microdrill. Defects in the arcuate eminence 0.5–3.5 mm in length were repaired using surgical occlusion with bone wax. The volume of wax used in the repair was quantified. The position of bone wax was evaluated by direct visualization and imaging (computed tomography [CT]). To visualize wax on CT, specimens were repaired using radiopaque wax. Results Exceedingly small volumes of bone wax (3.0–5.0 mm2) reliably occluded the canal lumen. Multiple wax applications resulted in extension into the common crus and ampulla. The length of this extension was related to the number of applications. Conclusions Repair of SCD with bone wax occludes the bony defect completely in most cases. Wax can extend along the lumen of the superior canal beyond the limits of the dehiscence to reach the sensory neuroepithelium of the vestibular end organs. Limiting the number of wax applications is essential to avoid inadvertent injury to the delicate neurosensory systems.

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“…The association of superior semicircular canal dehiscence with other ear diseases [9,4,27] and other dehiscences produced in the bone labyrinth is currently being investigated.…”

Section: Introductionmentioning

confidence: 99%

Association between superior semicircular canal dehiscence and other dehiscences in temporal bone

et al. 2020

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Background:The study of the association between superior semicircular canal and other dehiscences in the temporal bone. Materials and methods:We have studied computed tomography of radiologically diagnosed people with superior or posterior semicircular canal dehiscences, in four health centres. In addition, we have studied one isolated human temporal bone, one skull and one cadaver head belonging to the collection of the Department of Human Anatomy and Histology of the University of Zaragoza that had dehiscence in the superior semicircular canal. 2 Results:The most frequent association that we observed was between superior semicircular canal dehiscence and tegmen tympani dehiscence (37.33%). Three cases (two clinical cases and one isolated temporal bone) showed multiple associated dehiscences (tegmen tympani, mastoid antrum, posterior semicircular canal, internal auditory canal, glenoid cavity, tympanum bone and geniculate ganglion) associated with superior semicircular canal dehiscence Conclusions: When the superior semicircular canal dehiscence is associated to other in the petrous bone (tegmen tympani, mastoid antrum, posterior semicircular canal, internal auditory canal…) could be grouped into the same syndrome called "otic capsule syndrome", since they have the same origin and common etiology (otic capsule).

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Cochlear implant outcomes in patients with superior canal dehiscence

Cited by 13 publications

References 20 publications

Meta‐analysis of subjective complaints of vertigo and vestibular tests after cochlear implantation

Meta‐analysis of subjective complaints of vertigo and vestibular tests after cochlear implantation

Characteristics of Wax Occlusion in the Surgical Repair of Superior Canal Dehiscence in Human Temporal Bone Specimens

Association between superior semicircular canal dehiscence and other dehiscences in temporal bone

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