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Superior semicircular canal dehiscence

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https://www.readbyqxmd.com/read/29313443/effectiveness-of-transmastoid-plugging-for-semicircular-canal-dehiscence-syndrome
#1
Renee M Banakis Hartl, Stephen P Cass
Objectives (1) Evaluate changes in subjective symptoms in patients following transmastoid canal plugging for superior semicircular canal dehiscence (SSCD) syndrome. (2) Quantify changes in hearing in patients who have undergone transmastoid canal plugging for SSCD syndrome. Study Design Case series with chart review. Setting Single tertiary care institution. Subjects and Methods We retrospectively reviewed patients with SSCD who underwent repair with canal plugging via a transmastoid approach between January 2012 and January 2017...
January 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29283100/the-efficacy-of-magnetic-resonance-imaging-for-the-diagnosis-of-superior-semicircular-canal-dehiscence
#2
Fatma Beyazal Çeliker, Abdulkadir Özgür, Metin Çeliker, Mehmet Beyazal, Arzu Turan, Suat Terzi, Mehmet Fatih İnecikli
OBJECTIVE: This study aimed to evaluate the efficacy of magnetic resonance imaging (MRI) for diagnosing superior semicircular canal dehiscence (SSCD). MATERIALS AND METHODS: The radiological records of patients who were admitted to our clinic with complaints of otologic and neuro-otologic symptoms between October 2014 and December 2015 were retrospectively reviewed. Among these patients, those who underwent both computed tomography and MRI and were reported to have SSCD in the temporal bone on at least one side were included in the study group...
December 14, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29280497/aggregating-the-symptoms-of-superior-semicircular-canal-dehiscence-syndrome
#3
Laura Naert, Raymond Van de Berg, Paul Van de Heyning, Alexandre Bisdorff, Jeffrey D Sharon, Bryan K Ward, Vincent Van Rompaey
OBJECTIVES/HYPOTHESIS: To aggregate symptoms reported by patients with superior canal dehiscence syndrome (SCDS) and to develop an evidence-based symptom set by performing a systematic review of the literature. STUDY DESIGN: Database search and critical assessment of research studies. METHODS: Medline and PubMed databases were searched for articles that reported the preoperative symptoms of adult and pediatric patients with unilateral and bilateral SCDS...
December 27, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29272988/the-influence-of-the-subarcuate-artery-in-the-superior-semicircular-canal-dehiscence-and-its-frequency-on-stillbirths-illustrative-cases-and-systematic-review
#4
Gabriela Pereira Bom Braga, Jack H Noble, Eloisa Maria Mello Santiago Gebrim, Robert F Labadie, Ricardo Ferreira Bento
Literature describes that on the 25th gestational week the labyrinth is fully formed and with adult size. However, recent studies have shown that the cranial and labyrinth development continues until 3 years of age. OBJECTIVES: To demonstrate through tomographic study the frequency of semicircular canal dehiscence on nine specimens of stillbirths between 32 and 40 weeks and, through literature review, present another possible etiology for its cause. METHODS: Tomographic study of the temporal bone of 9 specimens of stillbirths between 32 and 40 weeks...
December 22, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29242950/superior-canal-dehiscence-syndrome-diagnosis-with-vestibular-evoked-myogenic-potentials-and-fremitus-nystagmus
#5
R Gürkov, C Jerin, W Flatz, R Maxwell
BACKGROUND: Superior canal dehiscence syndrome (SCDS) is a relatively rare neurotological disorder that is characterized by a heterogeneous clinical picture. Recently, vestibular evoked myogenic potential (VEMP) measurement was established for the diagnosis of SCDS. In the present study, a case series of patients with SCDS were analyzed, with a focus on VEMP. METHODS: Four patients with SCDS were prospectively examined with ocular VEMP (oVEMP) and cervical VEMP (cVEMP)...
December 14, 2017: HNO
https://www.readbyqxmd.com/read/29234688/superior-semicircular-canal-dehiscence-a-new-perspective
#6
Dinesh Sood, Lokesh Rana, Raman Chauhan, Roshni Shukla, Khanak Nandolia
Objective: To determine the use of multi-detector computed tomography (MDCT) in the diagnostic interpretation of superior semicircular canal dehiscence (SSCD) or thinning and its association with ear pathologies and to find whether it is an acquired condition and its association with increase in age. Materials and methods: study was performed in a tertiary care institute present in a village, following approval of the institutional ethical committee. Retrospective review of temporal bone CT examinations performed between September 2016 and March 2017 was done...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29224712/superior-semicircular-canal-dehiscence-diagnosis-and-management
#7
REVIEW
Christine Mau, Naveed Kamal, Saiaditya Badeti, Renuka Reddy, Yu-Lan Mary Ying, Robert W Jyung, James K Liu
The authors provide an update on the clinical manifestations, diagnosis and various approaches to the treatment of superior semicircular canal dehiscence (SSCD). SSCD is a rare condition where the bone overlying the superior semicircular canal thins or dehisces causing characteristic clinical findings. Since this was first reported in 1998 by Minor and colleagues, there has been much advancement made in terms of diagnosis and treatment. Signs and symptoms include a wide variation of both vestibular and auditory manifestations...
December 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29224005/evidence-of-osteoclastic-activity-in-the-human-temporal-bone
#8
Takefumi Kamakura, Joseph B Nadol
Bone remodeling within the otic capsule has been reported to be inhibited especially at or near the cochlea, except under some pathological conditions such as otosclerosis, Paget's disease, or mastoiditis, when bone remodeling can occur. Microcavitations found in periosteal and endosteal layers of human temporal bone specimens without otosclerosis, Paget's disease, or inflammation as reported in the current study are consistent with osteoclastic bone resorption. Thirty-three temporal bones from 33 patients were prepared for light microscopy and classified into 4 groups: histologically proven dehiscence of the superior semicircular canal (SSCD) (n = 3, group 1), age 20 years or younger (n = 10, group 2), age 90 years or older and with otosclerosis (n = 10, group 3), and age 90 years or older without otosclerosis (n = 10, group 4)...
December 9, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/29202612/cone-beam-computed-tomography-imaging-of-superior-semicircular-canal-morphology-a-retrospective-comparison-of-cleft-lip-palate-patients-and-normal-controls
#9
Oğuzhan Altun, Suayip Burak Duman, Ibrahim Sevki Bayrakdar, Yasin Yasa, Sacide Duman, Sevcihan Günen Yılmaz
OBJECTIVE: This study evaluated the prevalence and morphological characteristics of the superior semicircular canal (SSCC) in cleft lip and palate (CL/P) patients using cone beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 53 CL/P patients (28 males and 25 females) and a control group of 76 patients (42 males and 34 females) were evaluated. Retrospectively, 258 temporal bone images from 129 patients were evaluated in terms of SSCC morphology and divided into a normal pattern (0...
December 4, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29153260/diagnostic-criteria-for-patulous-eustachian-tube-a-proposal-by-the-japan-otological-society
#10
Toshimitsu Kobayashi, Masahiro Morita, Satoshi Yoshioka, Kunihiro Mizuta, Shigeto Ohta, Toshiaki Kikuchi, Tatsuya Hayashi, Akihiro Kaneko, Nobumasa Yamaguchi, Sho Hashimoto, Hiromi Kojima, Shingo Murakami, Haruo Takahashi
Patulous Eustachian Tube (PET) is of increasing importance in otology. However, despite the abundance of diseases requiring a differential diagnosis from PET, such as superior semicircular canal dehiscence syndrome, perilymphatic fistula, acute low-tone sensorineural hearing loss, etc., there are currently no established diagnostic criteria for PET. In view of these circumstances, the Japan Otological Society (JOS) Eustachian Tube Committee proposed the diagnostic criteria for Patulous Eustachian Tube in 2012, in order to promote clinical research on PET...
November 15, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29116385/hearing-eyeball-and-or-eyelid-movements-on-the-side-of-a-unilateral-superior-semicircular-canal-dehiscence
#11
Pierre Bertholon, Pierre Reynard, Yann Lelonge, Roland Peyron, François Vassal, Alexandre Karkas
Hearing of eyeball movements has been reported in superior semicircular canal dehiscence (SSCD), but not hearing of eyelid movements. Our main objective was to report the hearing of eyeball and/or eyelid movements in unilateral SSCD. Our secondary objective was to access its specificity to SSCD and discuss the underlying mechanism. Six patients with SSCD who could hear their eyeball and/or eyelid movements were retrospectively reviewed. With the aim of comparisons, eight patients with an enlarged vestibular aqueduct (EVA), who share the same mechanism of an abnormal third window, were questioned on their ability to hear their eyeball and/or eyelid movements...
November 8, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29094067/comorbidities-confounding-the-outcomes-of-surgery-for-third-window-syndrome-outlier-analysis
#12
P Ashley Wackym, Heather T Mackay-Promitas, Shaban Demirel, Gerard J Gianoli, Martin S Gizzi, Dale M Carter, David A Siker
Objective: Patients with third window syndrome and superior semicircular canal dehiscence (SSCD) symptoms whose surgical outcomes placed them as outliers were systematically studied to determine comorbidities that were responsible for their poor outcomes due to these confounding factors. Study Design: Observational analytic case-control study in a tertiary referral center. Methods: Twelve adult patients with clinical SSCD syndrome underwent surgical management and had outcomes that did not resolve all of their subjective symptoms...
October 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29022108/middle-cranial-fossa-approach-for-the-repair-of-superior-semicircular-canal-dehiscence-is-associated-with-greater-symptom-resolution-compared-to-transmastoid-approach
#13
REVIEW
Thien Nguyen, Carlito Lagman, John P Sheppard, Prasanth Romiyo, Courtney Duong, Giyarpuram N Prashant, Quinton Gopen, Isaac Yang
BACKGROUND: Superior semicircular canal dehiscence (SSCD) is a disorder of the skull base that is gaining increasing recognition among neurosurgeons. Traditionally, the middle cranial fossa (MCF) approach has been used for the surgical repair of SSCD. However, the transmastoid (TM) approach is an alternative strategy that has demonstrated promising results. METHODS: We performed independent searches of a popular database to identify studies that described outcomes following the surgical repair of SSCD through MCF and TM approaches...
October 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28990655/round-window-plugging-in-the-treatment-of-superior-semicircular-canal-dehiscence
#14
Eric F Succar, Periakaruppan V Manickam, Sara Wing, Jeffrey Walter, Joseph S Greene, William J Azeredo
OBJECTIVES/HYPOTHESIS: Objectives were to describe the use of round window plugging for superior semicircular canal dehiscence syndrome and review further recommendations regarding the procedure based on our experience and to compare results with recent literature on round window plugging. STUDY DESIGN: Retrospective case series. METHODS: Fourteen patients underwent round window plugging for superior semicircular canal dehiscence at our institution from 2012 to 2015...
October 9, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28945893/novel-method-of-measuring-canal-dehiscence-and-evaluation-of-its-potential-as-a-predictor-of-symptom-outcomes-after-middle-fossa-craniotomy
#15
Carlito Lagman, Joel S Beckett, Lawrance K Chung, Cheng Hao Jacky Chen, Brittany L Voth, Bilwaj Gaonkar, Quinton Gopen, Isaac Yang
BACKGROUND: Superior semicircular canal dehiscence (SSCD) is an osseous defect of the arcuate eminence of the petrous temporal bone. Strategies for measuring dehiscence size are variable, and the usefulness of such parameters remains in clinical equipoise. OBJECTIVE: To present a novel method of measuring dehiscence volume and to evaluate its potential as a predictor of symptom outcomes after surgical repair of SSCD. METHODS: High-resolution computed tomographic temporal bone images were imported into a freely available segmentation software...
August 9, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28922894/minimally-invasive-middle-fossa-keyhole-craniectomy-for-repair-of-superior-semicircular-canal-dehiscence
#16
(no author information available yet)
No abstract text is available yet for this article.
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28833207/semicircular-canal-dehiscence-among-idiopathic-intracranial-hypertension-patients
#17
Phoebe Kuo, Kenneth A Bagwell, Gino Mongelluzzo, Christopher A Schutt, Ajay Malhotra, Babar Khokhar, John F Kveton
OBJECTIVES/HYPOTHESIS: The cause of superior semicircular canal dehiscence (SSCD) is unknown. Because of a demonstrated association with tegmental defects and obesity, some have suggested idiopathic intracranial hypertension (IIH) could contribute by eroding the bone over the canal and resulting in SSCD. However, an association between IIH and SSCD has not previously been evaluated. Our objective was to evaluate an association between IIH and SSCD. STUDY DESIGN: Retrospective cohort...
August 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28725523/a-method-of-locating-the-dehiscence-during-middle-fossa-approach-for-superior-semicircular-canal-dehiscence-surgery
#18
Joel S Beckett, Lawrance K Chung, Carlito Lagman, Brittany L Voth, Cheng Hao Jacky Chen, Bilwaj Gaonkar, Quinton Gopen, Isaac Yang
Objectives  Superior semicircular canal dehiscence (SSCD) results from a defect in the middle cranial fossa floor. One challenge during SSCD repair is the lack of a consistent landmark. This study proposes a reference point above the external auditory canal at the level of the zygoma as the inferior craniectomy edge during surgery. Design  This is a retrospective review of patients with SSCD. Setting/Participants  A total of 72 cases of SSCD in 60 patients were repaired via a middle fossa approach at a single institution...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28657952/diagnosis-of-superior-semicircular-canal-dehiscence-in-the-presence-of-concomitant-otosclerosis
#19
Michael Yong, Erica Zaia, Brian Westerberg, Jane Lea
OBJECTIVE: To review three patients with concurrent otosclerosis and superior canal dehiscence identified before operative intervention and provide a practical diagnostic approach to this clinical scenario. STUDY DESIGN: Retrospective patient series. SETTING: Tertiary/quaternary referral center. PATIENTS: Individuals with confirmed diagnoses of concurrent otosclerosis and superior semicircular canal dehiscence syndrome...
September 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28641325/superior-canal-dehiscence-syndrome-associated-with-scuba-diving
#20
Naoharu Kitajima, Akemi Sugita-Kitajima, Seiji Kitajima
A 28-year-old female diver presented with dizziness and difficulty clearing her left ear whilst scuba diving. Her pure-tone audiometry and tympanometry were normal. Testing of Eustachian tube function revealed tubal stenosis. Video-oculography revealed a predominantly torsional nystagmus while the patient was in the lordotic position. Fistula signs were positive. High-resolution computed tomography (HRCT) of the temporal bone revealed a diagnosis of bilateral superior semicircular canal dehiscence (SCDS). Cervical vestibular-evoked myogenic potential (cVEMP) testing showed that the amplitude of the cVEMP measured from her left ear was larger than that from the right...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
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