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Background: Cochlear implants are valuable in the auditory rehabilitation of patients with severe to profound hearing loss. However, there is limited data on the outcomes of cochlear implantation in patients with Meniere's disease (MD)., Objectives: In this study, we aim to evaluate the auditory outcomes of cochlear implantation in patients with MD., Methods: A retrospective case series of patients with MD and severe to profound sensorineural hearing loss (SNHL), who underwent cochlear implantation at a tertiary academic center between 2006-2017. Patient's clinical characteristics and audiometric data were reviewed., Results: The study included 20 ears in 19 patients with MD who underwent cochlear implantation with available pre- and postoperative audiometric data. There were 10 males and 9 females with a mean age of 63 years and a mean follow-up duration of 70.8 months. Pre- and post-implant CNC word recognition scores were 18.31% and 66.89%, respectively (p<0.001). Pre- and post-implant AzBio and/or HINT sentence recognition scores were 12.25% and 68.28% in quiet, respectively (p<0.001), and 18.25% and 63.43% in noise, respectively (p<0.001)., Conclusions: Cochlear implantation resulted in an improvement of word and sentence recognition scores in MD patients. These results support the role of cochlear implants in the auditory rehabilitation of MD., Discussion: Dr. Samy received research support from Cochlear Corporation.

Background:  Binaural hearing is of utmost importance for communicating in noisy surroundings and localizing the direction of sound. Unilateral hearing loss (UHL) affects the quality of life in both childhood and adulthood, speech development, and academic achievements. Sound amplification using air-conducting hearing aids (HAs) is a common option for hearing rehabilitation of UHL. The processing time of digital HAs can significantly delay the acoustic stimulation in 3 to 10 milliseconds, which is far longer than the maximal natural interaural time difference (ITD) of 750 microseconds. This can further impair spatial localization in these patients., Purpose:  We sought to assess whether HA effects on ITD and interaural level difference (ILD) impair localization among subjects with unilateral conductive hearing loss (UCHL)., Research Design:  "Normal"-hearing participants underwent localization testing in different free field settings., Study Sample:  Ten volunteers with "normal"-hearing thresholds participated., Intervention:  Repeated assessments were compared between "normal" (binaural) hearing, UCHL induced by insertion of an inactivated HA to the ear canal (conductive HL), and amplification with a HA., Results:  In UCHL mode, with HA switched-off, localization was significantly impaired compared to "normal" hearing (NH; η 2  = 0.151). Localization error was more pronounced when sound was presented from the front and from the side of the occluded ear. When switched-on, amplification with HAs significantly improved localization for all participants compared to UCHL. Better localization with HAs was seen in high frequencies compared to low frequencies (η 2  = 0.08, 0.03). Even with HAs, localization did not reach that of NH (η 2  = 0.034)., Conclusion:  Mild UCHL caused localization to deteriorate. HAs significantly improved sound localization, albeit the delay caused by the device processing time. Most of the improvements were seen in high-frequency sounds, representing a beneficial effect of amplification on ILD. Our results have potential clinical value in situations of mild CHL, for instance, otitis media with effusion., Competing Interests: None declared., (American Academy of Audiology. This article is published by Thieme.)

Objective: Examine the effects of a multi-disciplinary skull base conference (MDSBC) on the management of patients seen for skull base pathology in a neurotology clinic., Methods: Retrospective case review of patients who were seen in a neurotology clinic at a tertiary academic medical center for pathology of the lateral skull base and were discussed at an MDSBC between July 2019 and February 2020. Patient characteristics, nature of the skull base pathology, and pre- and post-MDSBC plan of care was categorized., Results: A total of 82 patients with pathology of the lateral skull base were discussed at a MDSBC during an 8-month study period. About 54 (65.9%) had a mass in the internal auditory canal and/or cerebellopontine angle while 28 (34.1%) had other pathology of the lateral skull base. Forty-nine (59.8%) were new patients and 33 (40.2%) were established. The management plan changed in 11 (13.4%, 7.4-22.6 95% CI) patients as a result of the skull base conference discussion. The planned management changed from some form of treatment to observation in 4 patients, and changed from observation to some form of treatment in 4 patients. For 3 patients who underwent surgery, the planned approach was altered., Conclusions: For a significant proportion of patients with pathology of the lateral skull base, the management plan changed as a result of discussion at an MDSBC. Although participants of a MDSBC would agree of its importance, it is unclear how an MDSBC affects patient outcomes.

Objective: Examine the effect of preoperative bone conduction pattern on outcomes of stapedotomy/stapedectomy., Study Design: Retrospective case series., Setting: Tertiary-care academic medical center., Patients: Patients who underwent stapedotomy or stapedectomy from 2013 to 2019., Interventions: Primary small-fenestra stapedotomy or partial stapedectomy., Main Outcome Measures: Association between preoperative bone conduction patterns and hearing after stapes surgery., Results: Complete audiometric data were available for 137 patients who had surgery. The mean preoperative air-bone gap (ABG) was 26.8 dBHL. The ABG was closed to less than 20 and 10 dBHL in 88.7 and 65.2% of patients, respectively. A notch at 2000 Hz was present in 32.1% of operated ears and was rarely found at other frequencies. There was no statistically significant association between the presence of a notch and hearing outcomes. The slope of the bone conduction line had no association with hearing outcomes, though an increased bone conduction PTA compared with the contralateral ear was associated with ABG closure less than 10 dBHL and overclosure (odds ratio: 2.14, p = 0.027 and odds ratio: 2.20, p = 0.04)., Conclusion: In properly selected otosclerosis patients, depressions in bone conduction other than near 2000 Hz are rare and hearing outcomes are generally favorable regardless of the preoperative bone conduction pattern. Despite the association with otosclerosis, the presence of a notch at 2000 Hz is not associated with better hearing outcomes with surgery., Competing Interests: The authors disclose no conflicts of interest., (Copyright © 2021, Otology & Neurotology, Inc.)

Objective: The aim of this study was to determine the incidence of cochlear fibrosis after vestibular schwannoma (VS) resection via middle cranial fossa (MCF) approach., Design: A retrospective case review was conducted., Setting: The review was conducted in a tertiary care academic medical center., Participants: Patients who (1) underwent resection of VS via MCF approach between 2013 and 2018, (2) had complete pre- and post-audiometric testing, and (3) had clinical follow-up with magnetic resonance imaging (MRI) for at least 1 year after surgery were included., Main Outcome Measure(s): The main outcome of this study was cochlear fibrosis as assessed by MRI 1 year after surgery., Results: Fifty-one patients underwent VS resection via MCF technique during the study period. Of 31 patients with AAO-HNS class A or B preoperative hearing ability, 18 (58.0%) maintained class A, B, or C hearing postoperatively. Of 16 patients who lost hearing and had MRI 1 year after surgery, 11 (61.1%) had MRI evidence of fibrosis in at least some portion of the labyrinth and 4 (22.2%) showed evidence of cochlear fibrosis. Of 16 patients with preserved hearing and MRI 1 year after surgery, 4 (25%) had fibrosis in some portion of the labyrinth, with no fibrosis in the cochlea., Conclusions: In patients who lose hearing during VS resection with the MCF approach, there is usually MRI evidence of fibrosis in the labyrinth 1 year after surgery. However, there is also, but less commonly, fibrosis involving the cochlea. It is unclear if this will affect the ability to insert a cochlear implant electrode array., (© 2022 S. Karger AG, Basel.)

Objective: Traditionally, auditory brainstem implants (ABIs) have been placed via the translabyrinthine or retrosigmoid approaches. In select patients, a modified extended middle cranial fossa (xMCF) approach with tentorial ligation may be advantageous for vestibular schwannoma (VS) resection and auditory rehabilitation. This manuscript describes the application of this modification of the MCF approach for simultaneous VS resection and ABI placement., Patients: Patients with neurofibromatosis type 2, profound bilateral sensorineural hearing loss, single functioning sigmoid/jugular venous system, and giant (>4 cm) VS., Interventions: Simultaneous VS resection and ABI placement via a modified xMCF approach with tentorial ligation., Main Outcome Measures: Extent of tumor removal and brainstem decompression, access to lateral recess of the fourth ventricle, functional hearing improvement, surgical complications., Results: Two patients met indications and underwent surgery. There were no immediate or delayed surgical complications. Both had subtotal tumor removal with significant decompression of the brainstem and ABI placement. One patient achieved voice and environmental sound awareness at 35 to 55 dbHL across frequencies. The second patient presented with failure to thrive and multiple lower cranial neuropathies in addition to the above-listed indications. She was hospitalized multiple times after surgery due to failure to thrive and recurrent aspiration pneumonia. Her device was never activated, and she expired 1 year after surgery., Conclusions: The xMCF with tentorial ligation is an additional approach for tumor resection and ABI placement in selected patients with neurofibromatosis type 2. Future studies will further define when this approach is most applicable as well as the challenges and pitfalls., Competing Interests: The authors disclose no conflicts of interest., (Copyright © 2021, Otology & Neurotology, Inc.)

Objective: Compare outcomes of middle cranial fossa approach (MCF) to vestibular schwannoma (VS) resection in patients 60 years of age and older to patients under 60., Study Design: Retrospective case series., Setting: Tertiary referral center., Patients: Charts of 216 consecutive VS patients over 18 years of age were reviewed to identify 67 patients who underwent MCF approach to VS resection between 2006 and 2017., Intervention(s): Age at time of surgery., Main Outcome Measure(s): Measured outcomes included postoperative hearing results, facial nerve function, length of hospital stay, wound complications, cerebrospinal fluid leak, myocardial infarction, cerebrovascular accident, seizure, deep vein thrombosis, 30-day readmission, and return to operating room., Results: Sixty-seven patients underwent VS resection via MCF approach including 16 patients > = 60 years (mean 64.4 SD 3.3) and 51 patients < 60 years (mean 45.7 SD 10.2). Between these two groups, there were no differences in sex, tumor laterality, tumor size (10.4 mm versus 9.8 mm, p = 0.6), or other demographic characteristics. Postoperatively, there were no differences between groups in complication rates. Rates of HB 1 or 2 facial nerve function were similar (93.8% versus 88.2%, p = 0.7) as were rates of maintenance of class A or B hearing (58.3% versus 44.4%, p = 0.7)., Conclusions: Patients over 60 undergoing MCF for VS resection experienced similar rates of postoperative complications, facial nerve outcomes, and hearing preservation compared with younger patients. MCF for VS may be considered in the older population. Further research is warranted to evaluate appropriate limitations for this approach based on age.

Background: Traditional paradigms of care recommend close audiology follow-up and regular speech perception outcomes assessment indefinitely for cochlear implant (CI) recipients after device activation. However, there is scant published data on actual compliance with this paradigm in clinical practice., Methods: A multi-center cochlear implant database was queried to identify follow-up rates after cochlear implantation. Follow-up rates where speech perception outcomes assessment occurred at 1-, 3-, 6-, 12-, 18-, and 24-months post-activation were determined by tabulating observed follow-up divided by expected follow-up (O/E ratio) expressed as a percentage. To determine all-cause audiology follow-up rates (with or without testing speech perception outcomes assessment), the database patients from two participating centers (one private practice and one academic center) were similarly analyzed using electronic health record (EHR) data to calculate O/E rates where audiology follow-up occurred for any reason., Results: O/E follow-up rates where speech perception outcomes assessment occurred was 42, 40, 31, 29, 5, and 22% for 1-, 3-, 6-, 12-, 18-, and 24-months post-activation, respectively (n = 2,554). All-cause audiology follow-up rates (with or without speech perception outcomes assessment) using EHR-confirmed data from two individual centers were 97, 94, 81, 66, 41, and 35% at 1-, 3-, 6-, 12-, 18-, and 24-months post-activation visits, respectively (n = 118)., Conclusions: Compliance with audiology follow-up and speech perception outcomes assessment is generally low and decreases significantly as time post-activation increases. Future paradigms of care for CI should be designed recognizing the significant attrition that occurs with CI follow-up.

Objective: Report the details of an unusual case of initially unilateral intradural spontaneous otogenic pneumocephalus in which the patient developed contralateral pneumocephalus after surgical repair of temporal bone and dural defects on the initial side. Discuss the lessons learned concerning management and pathophysiology of this rare case., Patient: A 73-year-old male presenting with bilateral retro-orbital pain and headache was found to have unilateral intradural pneumocephalus in the temporal lobe with an adjacent defect in the temporal bone., Intervention: Surgical repair of the initial defect in the temporal bone and dura via a middle cranial fossa approach with obliteration of the mastoid cavity., Results: The patient's symptoms and degree of pneumocephalus on first affected side decreased initially after surgery. Two weeks after surgery he developed worsening pneumocephalus on the contralateral side in the temporal and frontal lobes with weakness and mild somnolence. This side was repaired via a similar technique without mastoid obliteration. Two weeks after surgery the patient recovered to normal level of consciousness with mild residual weakness., Conclusions: Spontaneous otogenic intradural pneumocephalus is an extremely rare but serious condition related to defects in the temporal bone and dura. The precise mechanism by which this occurs is poorly understood. This unusual case where there were bilateral defects presenting with spontaneous otogenic pneumocephalus in sequence illustrates that it represents a rare sequelae of processes which thin the skull base. These processes should be addressed in addition to acute management of the defect and intracranial air.

Objectives: To compare speech perception (SP) in noise for normal-hearing (NH) individuals and individuals with hearing loss (IWHL) and to demonstrate improvements in SP with use of a visual speech recognition program (VSRP)., Study Design: Single-institution prospective study., Setting: Tertiary referral center., Subjects and Methods: Eleven NH and 9 IWHL participants in a sound-isolated booth facing a speaker through a window. In non-VSRP conditions, SP was evaluated on 40 Bamford-Kowal-Bench speech-in-noise test (BKB-SIN) sentences presented by the speaker at 50 A-weighted decibels (dBA) with multiperson babble noise presented from 50 to 75 dBA. SP was defined as the percentage of words correctly identified. In VSRP conditions, an infrared camera was used to track 35 points around the speaker's lips during speech in real time. Lip movement data were translated into speech-text via an in-house developed neural network-based VSRP. SP was evaluated similarly in the non-VSRP condition on 42 BKB-SIN sentences, with the addition of the VSRP output presented on a screen to the listener., Results: In high-noise conditions (70-75 dBA) without VSRP, NH listeners achieved significantly higher speech perception than IWHL listeners (38.7% vs 25.0%, P = .02). NH listeners were significantly more accurate with VSRP than without VSRP (75.5% vs 38.7%, P < .0001), as were IWHL listeners (70.4% vs 25.0% P < .0001). With VSRP, no significant difference in SP was observed between NH and IWHL listeners (75.5% vs 70.4%, P = .15)., Conclusions: The VSRP significantly increased speech perception in high-noise conditions for NH and IWHL participants and eliminated the difference in SP accuracy between NH and IWHL listeners.

Objective: To explore socioeconomic disparities in pediatric single-sided deafness (SSD) treatment., Study Design: Retrospective chart review., Setting: Tertiary referral academic center., Methods: The charts of 190 pediatric patients with SSD were reviewed for demographic and clinical characteristics. Socioeconomic variables included race and insurance status. ZIP codes were used to obtain additional socioeconomic data from the American Community Survey, including mean and median income, percentage of families below the poverty level, and employment status. Socioeconomic status (SES) was classified by insurance status and income. Treatment outcomes were analyzed by socioeconomic variables., Results: There were 105 males and 85 females with a mean follow-up of 55.2 months and a mean age at diagnosis of 4.4 years. Sixty-three percent of children received treatment at last follow-up. Thirty-five percent of children had public insurance and 65% had private insurance. Treatment rates were similar in the private and public insurance groups (60.6% vs 66.7%, P = .42), but device type was different between groups ( P = .02). Consistent device use was associated with private insurance (47.5% vs 38.9%, P = .003) and high SES (94.4% vs 80%, P = .04) on univariate but not on multivariate analysis. Aided audiometry results were similar between SES groups. No association was found between sex, race, income level, poverty level, or employment status and treatment outcomes., Conclusion: Insurance type and SES were not associated with SSD treatment outcomes in children, although device use may be higher in children with private insurance and higher SES. Further research should focus on strategies to reduce barriers to treatment and improve adherence.

Purpose of Review: To review the principles of oncolytic virotherapy and summarize the recent preliminary evidence on the efficacy of oncolytic virotherapy for cholesteatoma (CHST) treatment in vitro in human CHST cells and in a gerbil CHST model., Recent Findings: The use of oncolytic virotherapy for nonmalignant lesions is innovative. In-vitro results showed that oncolytic herpes simplex virus 1 (oHSV) selectively targets and kills CHST cells. In a gerbil model of CHST, local oHSV injections were associated with a decrease in CHST volume and modulation of bony changes., Summary: Surgical treatment options for CHST are limited by high morbidity and recidivism, emphasizing the need for developing treatment alternatives. Preliminary results support the potential therapeutic effect of oncolytic virotherapy on CHST, yet further research is needed to evaluate this novel approach.

Objective: Compare outcomes for patients who were seen via telemedicine visits after otology/neurotology surgical procedures with those who were seen in traditional office visits., Study Design: Retrospective case review., Setting: Tertiary care academic medical center., Patients: Inclusion criteria were patients who underwent otologic/neurotologic surgery and were seen in at least one telemedicine visit for postoperative care., Intervention (s): Telemedicine visit for postoperative care., Main Outcome Measure (s): Comparison of the number of patient calls, unplanned visits, and delayed complications between telemedicine patients and controls matched for age, procedure, and American Society of Anesthesiologists (ASA) status., Results: Eighteen patients were seen in telemedicine visits postoperatively after the following otologic/neurotologic surgical procedures: cochlear implant surgery (10), vestibular schwannoma resection (4), combined middle fossa and transmastoid cerebrospinal fluid (CSF) leak repair (2), middle fossa repair of superior canal dehiscence (1), and stapedectomy (1). All telehealth visits were for the second postoperative visit. The mean number of patient calls after surgery was 2.3 for the telemedicine group and 1.9 for matched controls which was not a statistically significant difference (p = 0.466). Both groups each had two patients who went to the emergency room, with one in each group being admitted. There was one delayed complication in the control group., Conclusion: Our preliminary experience suggests telemedicine may be used safely in caring for patients after otologic/neurotologic surgery, though it may be associated with more patient phone calls. Further study and experience, including assessing patient satisfaction, will clarify the future role of telemedicine in otology and neurotology.

Mutations in more than 150 genes are responsible for inherited hearing loss, with thousands of different, severe causal alleles that vary among populations. The Israeli Jewish population includes communities of diverse geographic origins, revealing a wide range of deafness-associated variants and enabling clinical characterization of the associated phenotypes. Our goal was to identify the genetic causes of inherited hearing loss in this population, and to determine relationships among genotype, phenotype, and ethnicity. Genomic DNA samples from informative relatives of 88 multiplex families, all of self-identified Jewish ancestry, with either non-syndromic or syndromic hearing loss, were sequenced for known and candidate deafness genes using the HEar-Seq gene panel. The genetic causes of hearing loss were identified for 60% of the families. One gene was encountered for the first time in human hearing loss: ATOH1 (Atonal), a basic helix-loop-helix transcription factor responsible for autosomal dominant progressive hearing loss in a five-generation family. Our results show that genomic sequencing with a gene panel dedicated to hearing loss is effective for genetic diagnoses in a diverse population. Comprehensive sequencing enables well-informed genetic counseling and clinical management by medical geneticists, otolaryngologists, audiologists, and speech therapists and can be integrated into newborn screening for deafness., (© 2020 John Wiley & Sons A/S . Published by John Wiley & Sons Ltd.)

Objectives: To report a rare case of idiopathic intracranial hypertension (IIH) presenting with hemifacial spasm (HFS) and review the current literature., Methods: Case report and literature review. The patient's medical record was reviewed for demographic and clinical data. For literature review, all case reports or other publications published in English literature were identified using PUBMED., Results: A 43-year-old obese female presented with a 2-year history of left HFS.Electroencephalography and head computed tomography were unremarkable. Magnetic resonance imaging demonstrated bilateral anterior inferior cerebellar artery vascular loops involving the internal auditory canals as well as IIH-associated findings. A lumbar puncture was performed and revealed an elevated opening pressure of 26 cm H 2 0 cerebrospinal fluid. Acetazolamide treatment was then initiated, resulting in complete resolution of the HFS., Conclusion: HFS may be a rare presenting manifestation of IIH, and treatment of IIH may result in improvement of HFS symptoms. This is the first report of IIH presenting with HFS in the absence of headache or visual change. As a result, this is the first report of HFS as a presenting manifestation of IIH in Otolaryngology literature.

Objective: To examine the imaging findings on computer tomography (CT) and magnetic resonance imaging (MRI) in pediatric single-sided deafness (SSD) and asymmetric hearing loss (ASH)., Methods: The medical records of 189 pediatric patients with SSD and ASH were retrospectively reviewed, and imaging findings were compared. SSD was defined as unilateral profound hearing loss and contralateral normal hearing ear. In the ASH group, ASHw was defined as the worse hearing ear with profound hearing loss, while ASHb was defined as the better hearing ear with mild-moderate hearing loss., Results: There were 170 patients with SSD and 19 patients with ASH. In the SSD group, 83 patients (48.8%) had imaging findings associated with hearing loss. In the ASH group, such imaging findings were found in six (31.6%) of the ASHw and in five (26.3%) of the ASHb ears. The most common finding in the SSD group was cochlear nerve deficiency (50.6%), followed by cochlear dysplasia (39.8%) and enlarged vestibular aqueduct (26.5%). In the ASH groups, cochlear dysplasia was seen in three (50%) of ASHw ears and in two (40%) of the ASHb ears, and enlarged vestibular aqueduct was seen in three (50%) of ASHw ears and in two (40%) of the ASHb ears., Conclusion: Imaging studies identified the etiology in half of the cases of SSD and in one-third of ASH patients. Our findings strongly support the use of imaging studies in the evaluation of pediatric SSD and ASH., Level of Evidence: 4 Laryngoscope, 130:1007-1010, 2020., (© 2019 The American Laryngological, Rhinological and Otological Society, Inc.)

Objective: To examine the association between operative duration and complications after vestibular schwannoma (VS) surgery., Study Design: Retrospective chart review., Setting: Tertiary referral center., Patients: One hundred forty-eight patients undergoing vestibular schwannoma resection in a single institution., Intervention: Vestibular schwannoma resection., Main Outcome Measures: Operative duration, surgical approach, tumor size, and postoperative complications., Results: Forty-one patients underwent middle cranial fossa (MCF) approach, 46 underwent translabyrinthine (TL) approach, and 61 underwent retrosigmoid (RS) approach. The mean operative duration overall was 407 minutes (MCF-339 min, TL-450 min, RS 420 min). When controlling for tumor size, there was no difference in procedure duration by approach (OR 0.92, CI 0.82-1.02, p=0.11).When controlling for approach, there was a significant increase in procedure duration by tumor size (OR 1.36, CI 1.23-1.50, p < 0.0001). Increased procedure duration was not associated with 30-day readmission (p = 0.82), cerebrospinal fluid leak (CSF) (p = 0.84), return to the operating room (p = 0.75), postoperative deep vein thrombosis (p = 1.0), postoperative stroke (p = 0.23), or postoperative wound complications (p = 0.70). Longer operative time was associated with increased hospital length of stay (p = 0.04). However, when controlling for tumor size and surgical approach, hospital length of stay was no longer associated with increased procedure duration (OR 1.15, CI 0.98-1.33, p = 0.3)., Conclusion: Increased operative duration was associated with larger tumor size; however contrary to previous reports, increased operative duration was not associated with postoperative complications.

Objective: Determine whether elevated body mass index (BMI) is associated with postoperative complications after vestibular schwannoma (VS) surgery., Study Design: Retrospective case series., Setting: Tertiary referral center., Patients: Two hundred six patients undergoing surgery for VS between 2010 and 2017, grouped into obese and nonobese patients., Intervention: Surgery for VS resection., Main Outcome Measures: Postoperative facial nerve outcomes, length of hospital stay, presence of postoperative cerebrospinal fluid leak, 30-day readmission, return to the operating room, wound complications, cardiovascular and thromboembolic complications., Results: After excluding 1 patient for missing BMI, our cohort included 205 patients. Seventy-nine patients (38.5%) were obese (mean BMI 36.2 kg/m, range 30-55.1) and the remaining 126 (61.5%) were nonobese (mean BMI 25.0, range 18.8-29.8 kg/m). Compared with nonobese patients, obesity was not associated with postoperative cerebrospinal fluid leak (OR 1.1, 95% CI 0.93-1.1), length of hospital stay (OR 0.98, 95% CI 0.65-1.47), 30-day readmission rates (1.04, 95% CI 0.95-1.14), return to operating room (OR 1.05, 95% CI 0.98-1.11), or other wound-related complications (OR 0.99, 95% CI 0.94-1.04)., Conclusion: In this cohort, elevated BMI was not associated with an increased risk for postoperative complications after VS surgery. Our findings may mitigate concerns associated with surgical management of VS in obese patients.

Background: Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo. It is assumed that sleep is involved in the pathogenesis of BPPV, and that habitual head-lying side during sleep correlates with the affected side in the posterior semicircular canal BPPV., Objectives: To investigate the relationship between the preferred sleeping position and the affected semicircular canal in patients with BPPV., Methods: We performed a retrospective data review of patients seeking help for vertigo/dizziness who had undergone clinical evaluation including a Dix-Hallpike test. Patients diagnosed with posterior canal BPPV (p-BPPV) were asked to define their preferred lying side (right, left, supine, or variable) during the night sleep. Affected semicircular canal (right posterior or left posterior) was registered along with demographic data., Results: In all, 237 patients were diagnosed with p-BPPV. Patients with horizontal semicircular canal BPPV (n=11) were excluded. Patient mean age was 57 years (range 14-87). There were 150 patients with right p-BPPV and 87 patients with left p-BPPV. Among the patients, 122 (52%) habitually slept on the right side. Of those, 102 (84%) were diagnosed with right p-BPPV (P = 0.0006), while 82 patients (34%) habitually slept on the left side. Fifty-three (65%) were diagnosed with left p-BPPV (P < 0.0001). There were no differences in right vs. left p-BPPV in the 33 patients (14%) who expressed no preference concerning their sleeping positions., Conclusions: Our study highlights the etiology of BPPV and showed that changing sleep position habits might be helpful in preventing recurrent BPPV.

Objective: Determine if oncolytic herpes simplex virus (oHSV) can eradicate cholesteatoma (CHST) in a gerbil model., Methods: An in vivo model of CHST was developed in Mongolian gerbils by combining Pseudomonas aeruginosa inoculation with double ligation of the external auditory canal (EAC). CHST size and bone thickness were measured using morphometric and volumetric quantification techniques via micro-computed tomography (micro-CT). The CHST induction and quantification techniques were then used in an additional group of 10 gerbils ( n = 20 ears) to determine the within-group treatment efficacy of oHSV against CHST in vivo. Treated animals received either one, two, or three intrabullar injections of oHSV between 2 and 6 weeks postinduction of CHST., Results: The P. aeruginosa inoculation plus double EAC ligation technique successfully induced a range of CHST growth in 100% of the ears in the model-development group. Osteolytic effects of CHST were observed in 6% of ears whereas osteoblastic effects were observed in 31% of ears. CHST volume decreased by 50% or more in 12 of the 20 ears in the oHSV-treatment groups. An apparent reversal of osteoblastic effects was also observed in three out of four ears 6 weeks following the third oHSV injection., Conclusions: P. aeruginosa inoculation plus double EAC ligation reliably induces CHST formation in gerbil. CT-based volumetric measures are significantly more accurate than single-slice morphometric area measures for quantification of CHST size. Treatment with oHSV appears to be efficacious for reducing CHST volume by as much as 77% with as few as one treatment., Level of Evidence: NA., (© 2019 The Authors. Laryngoscope Investigative Otolaryngology published by Wiley Periodicals, Inc. on behalf of The Triological Society.)

Purpose of Review: To summarize the current evidence on the diagnostic evaluation of cranial cerebrospinal fluid (CSF) leaks and encephaloceles, including laboratory testing and imaging studies., Recent Findings: The most sensitive and specific laboratory tests for CSF leak diagnosis are beta-2-transferrin and beta trace protein assays, the former more commonly used because of availability. Imaging studies used for localization of the leak site include high resolution computed tomography (HRCT) and magnetic resonance cisternography (MRC), often used in combination. Intrathecal contrast administration is reserved for complex cases with prior equivocal test results or for patients with multiple skull base defects to localize the leak site., Summary: Diagnosis of CSF leaks and encephaloceles is aimed at both confirming the leak and localizing the leak site. Future advancements in testing techniques may shorten the diagnostic process, limit the need for invasive testing, and improve the safety of such testing in indicated cases.

Objective  Evaluate the cerebrospinal fluid (CSF) leak rate after the middle cranial fossa (MCF) approach to vestibular schwannoma (VS) resection. Design  Retrospective case series. Setting  Quaternary referral academic center. Participants  Of 161 patients undergoing the MCF approach for a variety of skull base pathologies, 66 patients underwent this approach for VS resection between 2007 and 2017. Main Outcome Measure  Postoperative CSF leak rate. Results  There were two instances of postoperative CSF leak (3.0%). Age, gender, and BMI were not significantly associated with CSF leak. In the two cases with CSF leakage, tumors were isolated to the internal auditory canal (IAC) and both underwent gross total resection. Both CSF leaks were successfully treated with lumbar drain diversion. For the 64 cases that did not have a CSF leak, 51 were isolated to the IAC, 1 was located only in the cerebellopontine angle (CPA), and 12 were located in both the IAC and CPA. 62 patients underwent gross total resection and 2 underwent near-total resection. Mean maximal tumor diameter in the CSF leak group was 4.5 mm (range: 3-6 mm) versus 10.2 mm (range: 3-19 mm) in patients with no CSF leak ( p  = 0.03). Conclusions  The MCF approach for VS resection is a valuable technique that allows for hearing preservation and total tumor resection and can be performed with a low CSF leakage rate. This rate of CSF leak is less than the reported rates in the literature in regard to both translabyrinthine and retrosigmoid approaches.

Cholesteatomas (CHSTs) are congenital or acquired lesions of the temporal bone that are associated with significant morbidity. We hypothesized that an oncolytic herpes simplex virus (oHSV) could preferentially eradicate primary human CHST cells in vitro and that this virus will replicate selectively and efficiently in CHST cells when compared with control cells. In this work, primary human CHST cells were cultured from surgically collected tissue. Cholesteatomas and control cells were grown and infected by oncolytic oHSV. More than 80% CHST cells versus <5% control cells were killed by oHSV. The oHSV showed a significant enhanced cytotoxic effect against CHST cells in a time- and dose-dependent manner. Therefore, this novel therapy has promise as a future treatment to minimize the spread and recurrence of CHST.

Objective: Evaluate the safety and efficacy of the ultrasonic bone aspirator (UBA) during middle cranial fossa (MCF) approach to vestibular schwannoma (VS)., Study Design: Retrospective case series., Setting: Tertiary referral center., Patients: Charts of 192 consecutive VS patients over 18 years of age were reviewed to identify 65 patients who underwent MCF approach to VS resection between 2006 and 2017. A combination of UBA and high-speed drill (HSD) was used to decompress the internal auditory canal (IAC) in 25 patients and HSD alone was used in the other 40 patients., Intervention(s): Use of UBA during vestibular schwannoma surgery via MCF approach for decompression of the IAC., Main Outcome Measure(s): Postoperative facial nerve outcomes assessed by the House-Brackmann (HB) facial nerve grading scale. Rates of gross total resection (GTR) and cerebrospinal fluid (CSF) leak., Results: There were no significant differences in postoperative facial nerve function, in rate of GTR of tumor, or in rate of CSF leak. In the UBA group 24/25 (96%) had postoperative HB grade I-II compared with 36/40 (90%) in the HSD group (p-value = 0.66). GTR was achieved in 25/25 (100%) in the UBA group compared with 38/40 (95%) in the HSD group (p-value = 1). In the UBA group, there were 0/25 (0%) cases of CSF leak compared with 1/40 (2.5%) in the HSD group (p-value = 1)., Conclusions: UBA use is a safe and effective alternative or adjunct to HSD during MCF approach to expose the IAC contents. This surgical tool allows for bone removal with low risk of injury to adjacent structures.

Objectives:: Assess the utility of intraoperative transcranial facial motor-evoked potential (FMEP) monitoring in predicting and improving facial function after vestibular schwannoma (VS) resection., Study Design:: Retrospective chart review., Methods:: Data were obtained from 82 consecutive VS resections meeting inclusion criteria. Sixty-two cases were performed without FMEP and 20 with FMEP. Degradation of FMEP response was defined as a final-to-baseline amplitude ratio of 0.5 or less. House-Brackmann (HB) grade was assessed preoperatively, postoperatively, at follow-up assessments, and it was compared between pre- and post-FMEP cohorts. Positive predictive value (PPV) and negative predictive value (NPV), sensitivity, and specificity of FMEP degradation in predicting facial weakness were calculated., Results:: In the pre-FMEP group, at length of follow-up (LOF) ⩾9 months, 83.9% (52/62) of patients exhibited HB 1-2 outcome. In the post-FMEP cohort, 75.0% (15/20) exhibited HB 1-2 function at LOF ⩾9 months. There was no difference in rates of HB 1-2 outcomes between groups in the immediate postoperative period ( P = .35) or at long-term follow-up ( P = 1.0). With respect to predicting immediate postoperative facial function, FMEP demonstrated high specificity (88.9%) and moderate sensitivity (54.5%). The PPV and NPV for immediate postoperative facial function were 85.7% and 61.5%, respectively. With respect to long-term (⩾9 months LOF) facial function, intraoperative FMEP was moderately sensitive (71.4%) and highly specific (84.6%); PPV was moderate (71.4%), and NPV was high (84.6%)., Conclusions:: Intraoperative FMEP is highly specific and moderately sensitive in predicting postoperative facial function for patients undergoing VS resection, but its use may not be associated with improved facial nerve outcomes., Level of Evidence:: 4.

Purpose of Review: To review the current literature on the extended middle cranial fossa (xMCF) approach and to provide a comprehensive description of the relevant anatomy, indications, surgical technique, results, and complications., Recent Findings: The xMCF approach expands the surgical exposure provided by the sMCF approach, allowing access to the internal auditory canal, cerebellopontine angle, prepontine cistern, anterior petrous apex, petrous carotid artery, Meckel's cave, cavernous sinus, mid and upper clivus, and posterior lesions approaching the jugular foramen. Preservation of serviceable hearing is possible with success rates approximating 50% in vestibular schwannoma and meningioma resection, and facial nerve outcome is excellent., Summary: The xMCF is an important approach for difficult to access lesions that additionally offers the possibility of hearing preservation. This approach is also useful for vascular lesions, auditory brainstem implantation, and lesions of mid-brainstem.

Background: Nasal vestibulitis (NV) is a common infection; however, scant data is available in the literature as it pertains to NV. We aim to describe the clinical characteristics of NV in respect to its potential complications., Methods: A retrospective chart review of 118 NV cases admitted to a tertiary medical center between 2008 and 2015., Results: Identified risk factors for NV included nasal hair plucking (n=15, 14.41%), nose blowing (n=10, 9.32%), nose picking (n=9, 8.47%) and nose piercing (n=5, 3.39%). Twelve patients (10.17%) were diabetic, and 3 patients were immunosuppressed. Mid-facial cellulitis was observed in the majority of patients (78.81%), and abscess of the nasal vestibule was observed in almost half (48.30%). Cultures were taken from 33.33% of patients demonstrated MSSA as the most common isolate (81.25%). No complications were observed., Conclusion: Even in complicated cases of NV requiring admission, the risk of major complications is extremely low., (Copyright © 2017 Elsevier Inc. All rights reserved.)

Life expectancy in Israel has risen by almost 6 years during the last 25 years, and the proportion of people 65 years of age or older is expected to reach 12 % of the total population by 2020. A substantial increase in the workload for Otolaryngologists and Head and Neck surgeons is anticipated. Our goal was to characterize the admissions of patients 80 years of age and older to the Department of Otolaryngology, Head and Neck Surgery in a tertiary medical center. The study group included all patients 80 years of age and older who were admitted to the Department of OTOHNS in our institute between 2009 and 2013. There were two control groups for comparison divided by age; one group 40-59 years old and the other group 60-79 years old. There were 385 admissions of 317 patients aged 80-103 years (4.2 % of overall admissions). Over the study period, admissions of patients over 80 years increased on average by 3 % per annum (p = 0.4), and those patients over 90 years old by 52 % per annum (p < 0.001). The most common indication was HN malignancy (28.8 %) followed by otologic disorders (22.0 %). Of the overall 158 operations conducted, 131 patients (82.9 %) underwent elective procedures (mainly oncology) and 27 patients (17.1 %) underwent emergent procedures. The distribution of the reasons for admission of the patients older than 80 years is surprisingly different from that of the "younger" patients. With life expectancy rising, our study predicts a workload increase mainly in the HN oncologic and otologic services.

Background: Laryngeal cleft (LC) is a rare congenital anomaly manifesting in a variety of symptoms, including swallowing disorders and aspirations, dyspnea, stridor and hoarseness. The mild forms (types I-II) may be underdiagnosed, leading to protracted symptomatology and morbidity., Objectives: To evaluate the diagnostic process, clinical course, management and outcome in children with type I-II laryngeal clefts., Methods: We conducted a retrospective case analysis for the years 2005-2012 in a tertiary referral center., Results: Seven children were reviewed: five boys and two girls ranging in age from birth to 5 years. The most common presenting symptoms were cough, aspirations and pneumonia. Evaluation procedures included fiber-optic laryngoscopy (FOL), direct laryngoscopy (DL) and videofluoroscopy. Other pathologies were seen in three children. Six children underwent successful endoscopic surgery and one child was treated conservatively. The postoperative clinical course was uneventful in most of the cases., Conclusions: Types I-II LC should be considered in the differential diagnosis of children presenting with protracted cough and aspirations. DL is crucial for establishing the diagnosis. Endoscopic surgery is safe and should be applied promptly when conservative measures fail.

The aim of current investigation was to analyze the efficacy of myringoplasty in an elderly population. The medical records of 12 males and 9 females, aged 65-90 years (mean 70.7 years), who underwent myringoplasty between 2007 and 2013 were retrospectively reviewed for age, gender, co-morbidities, perforation size and location, pre- and postoperative pure tone averages of air/bone thresholds at 500, 1,000, 2,000 and 3,000 Hz, graft material, postoperative complications and surgical outcome. The most frequent co-morbidities included hypertension (n = 8), hyperlipidemia (n = 7), diabetes mellitus (n = 5) and ischemic heart disease (n = 4). Fifteen patients had two or more co-morbidities. All surgeries were performed via a trans-canal approach. Seventeen patients had central perforations and four patients had marginal perforations. Temporalis fascia, perichondrium or chondro-perichondrial graft and fat were used as grafting material in 9, 11 and 1 patient, respectively. The post-operative complications were infection (n = 4) and tragal seroma (n = 1). Surgical outcome was successful in 16/21 patients with graft take rates of 89, 72 and 0% for temporalis fascia, perichondrium/cartilage, and fat, respectively. Pre-operative audiometric data were available for all 21 patients; however, the post-operative data were available for only 15 of them. Myringoplasty in older people was a safe procedure with a 76.2% surgical success rate in the current study. The choice of graft material, perforation size, gender and associated co-morbidities had no significant effect on achieving an intact tympanic membrane and a dry ear. The audiometric results did not show significant changes following myringoplasty.

Objective: There are only sporadic reports of delayed sino-nasal complications associated with nasopharyngeal carcinoma (NPC) treated with radiotherapy. These include choanal stenosis, osteoradionecrosis, chronic sinusitis, and intranasal synechiae. Most likely, these complications are underestimated as in many institutions nasal endoscopies in NPC patients are not performed routinely. The aim of this study was to identify the onset and incidence of delayed sino-nasal complications in NPC patients and their effect on quality of life (QOL)., Study Design: Case series with chart review., Setting: Tertiary medical center., Subjects and Methods: A retrospective chart review was performed on all patients treated for NPC in our institution between 1988 through 2009. The inclusion criteria required at least a 3-year follow-up without recurrence. Included patients were contacted prospectively and asked to fill a SNOT-16 questionnaire., Results: Sixty-two patients were included in our review. There were 42 males and 20 females. The average age at onset was 42 years. The AJCC staging for T1, T2, T3, and T4 tumors was 22 (35%), 11 (18%), 18 (29%), and 11 (18%), respectively. Eleven patients (18%) suffered from chronic sinusitis. Nine patients (15%) developed choanal stenosis. Five patients (8%) developed osteoradionecrosis. Two patients suffered from nasal synechiae. Forty-eight patients completed the SNOT-16 questionnaire. Patients with choanal stenosis had the lowest QOL scores out of the cohort., Conclusion: The incidence of delayed sino-nasal complications after radiation treatment for NPC is not negligible and should be kept in mind when addressing the quality of life of NPC survivors., (© American Academy of Otolaryngology—Head and Neck Surgery Foundation 2014.)

Background: Tracheostomy is a frequent, and at times semiurgent, surgical procedure. It is performed in close proximity to the thyroid gland, and in many cases requires division of its isthmus, putting a patient in danger of significant bleeding., Objectives: To examine prospectively the feasibility of vessel sealing in tracheostomy., Methods: A vessel-seating device was used in 24 consecutive patients undergoing tracheostomy. There were no exclusion criteria for enrolling the patients. No other hemostatic technique was used for dividing the isthmus., Results: There were no bleeding events throughout the postoperative period. The operating time saving was 5-10 minutes., Conclusions: Use of the vessel sealer was found to be straightforward, efficacious, rapid and safe.

Aim: To investigate the relationship between a patient's smoking habits and surgical outcome of his/her myringoplasty., Method: The medical records of patients who had undergone myringoplasty were retrospectively reviewed for age, gender, smoking habits, perforation size, perforation location, surgical technique, graft material, and surgical outcome. Surgical success was defined as the perforation having remained closed 12 months postoperatively., Results: The study group included 65 patients (41 females and 24 males, age range 18-79, average 35.9 years). Eight females were smokers (19.5%) compared to 10 male smokers (41.7%, p = 0.054). The overall surgical success rate was 63/65 (96.9%) with the 2 failures occurring in nonsmoker females. The graft taken was temporalis fascia in 20/21 (95.2%) and tragal perichondrium in 43/44 (97.7%) cases (p = 0.587). There was no significant gender-based (39/41 vs. 24/24, p = 0.272) or smoker status-based (45/47 for nonsmokers vs. 18/18 for smokers, p = 0.374) success rate. There was no significant difference in fascia versus perichondrium grafting success for smokers (p = 0.421) versus nonsmokers (p = 0.583)., Conclusion: Primary myringoplasty performed by an experienced otologist had a surgical success rate of 96.9% for closure of tympanic membrane defects, regardless of the choice of graft material, perforation size or location, and patient's age, gender and smoking habits., (Copyright © 2013 S. Karger AG, Basel.)

Mixed cryoglobulinemia (MC) syndrome is an immune complex-mediated vasculitis characterized by the clinical triad of purpura, weakness, and arthralgias, the morbidity of which is mainly related to kidney and peripheral nervous system dysfunction as well as to the development of a secondary lymphoma (Ferri et al. Autoimmun Rev 7:114-120, 2007, Lidar et al. Ann N Y Acad Sci 1173:649-657, 2009, Trejo et al. Semin Arthritis Rheum 33:19-28, 2003). MC is associated with infectious and systemic disorders, principally autoimmune and lymphoproliferative diseases. Since the 1990s, a striking association (>90%) between MC and hepatitis C virus (HCV) infection has been established (Ferri and Bombardieri 2004; Pascual et al. J Infect Dis 162:569-570, 1990). However, information regarding the etiopathogenesis of HCV-negative MC is scant (Mascia et al. Dig Liver Dis 39:61-64, 2007). We hereby present our findings, as well as previously published data, regarding the presence of antibodies against infectious agents and autoantibodies in patients with MC in an attempt to establish novel associations which may shed light on the etiopathogenesis of this disease.

In this study we assess the presence of antibodies against infectious agents as well as for a variety of autoantibodies in an attempt to establish associations between various vasculitides and infections in order to shed light on the etiopathogenesis of these diseases and perhaps implicate a potential cure. Sera from patients with Wegener's granulomatosis (WG), polyarteritis nodosa, microscopic polyangiitis, Churg Strauss, and giant cell arteritis were compared to healthy control sera. Serum samples were assessed, using the Bio-Rad BioPlex 2200, for the presence of Toxoplama gondii, cytomegalovirus (CMV), Epstein-Barr virus (EBV), Treponema pallidum, and Saccharomyces cerevisiae. Hepatitis B virus (HBV), hepatitis C virus (HCV), and anti-Helicobacter pylori antibodies were assessed by ELISA. In addition, sera were tested for a panel of antibodies associated with thrombophilia as well as various autoantibodies. The prevalence of antibodies toward HCV and H. pylori was significantly higher among patients with WG. IgG antibodies toward T. gondii and IgM antibodies toward CMV were significantly more common among WG patients than among controls. WG patients exhibited more antibodies toward EBV viral capsid antigen IgG and EBV early antigen IgG compared to sera from healthy controls. In WG, positive associations were disclosed between CMV IgG antibodies and the presence of gastrointestinal manifestations and renal involvement, and there was a higher Birmingham vasculitis activity score in association with elevated titers of EBV viral capsid antigen IgG antibodies. Otorhinolaryngeal manifestations were more common in those with positive IgG antibodies for EBV early antigen. Our results unveil novel associations between WG and various infectious agents, including HCV, H. pylori, T. gondii, CMV, and EBV. In addition to putative roles in initiation and exacerbation of the vasculitic process, it seems that these infectious agents also modulate the clinical phenotype of the disease.

Infectious agents have been implicated in the etiopathogenesis of various vasculitides via numerous and overlapping mechanisms including direct microbial invasion of endothelial cells, immune complex mediated vessel wall damage and stimulation of autoreactive B and/or T cells through molecular mimicry and superantigens. While the causative role of hepatitis B virus in polyarteritis nodosa and hepatitis C virus in mixed cryoglobulinemia is clearly established, evidence for the association of other infectious agents with vasculitis, including human immunodeficiency virus, parvovirus B19, cytomegalovirus, varicella zoster virus, Staphylococcus aureus, rickettsiaceae, Treponema pallidum and Borrelia burgdorferi, among numerous others, is accumulating. The spectrum of association of infectious agents; bacteria, viruses and parasites, with systemic vasculitides, will be reviewed herewith.