Purely intracranial vagal schwannoma: A case report of a rare lesion.

We present a rare intracranial vagal schwannoma along with its preoperative, intraoperative, and postoperative course.

Angiolymphoid hyperplasia with eosinophilia of the external ear.

Herein we present the rare case of angiolymphoid hyperplasia with eosinophilia of the external ear treated by surgical resection and full-thickness skin graft. Current diagnosis and management options are reviewed.

National 30-day readmission and prolonged length of stay after vestibular schwannoma surgery: Analysis of the Nationwide Readmissions Database.

PURPOSE: To determine the risk factors for unanticipated readmission, prolonged index admission, and discharge to a facility after vestibular schwannoma surgery. MATERIALS AND METHODS: Retrospective cohort study of those undergoing surgery for vestibular schwannoma in the Nationwide Readmissions Database (2013-2014). Main outcome measures included readmission rate, length of stay, discharge destination. RESULTS: There were 4585 cases identified. The overall unanticipated readmission rate was 8.1%, and 9.1% had a prolonged length of stay (PLOS) of ≥7 days. Mean and median LOS were 4.63 and 4.00 days, respectively, and >90% of patients were discharged after 7 days. Disposition to a facility occurred in 6.7% of cases. Teaching hospitals were protective against unintended readmission (odds ratio [OR] 0.44, p < .001). Major functional loss was associated with PLOS (OR 12.55, p < .001). High volume centers were associated with decreased risk of PLOS (OR 0.46, p < .001) and facility discharge (OR 0.68, p < .001). The most common readmission diagnoses included "other nervous system complications" (n = 128), cerebrospinal fluid leak (n = 71), "other postoperative infection" (n = 61), and meningitis (n = 59). CONCLUSIONS: Unanticipated readmission and prolonged LOS following vestibular schwannoma surgery are common, with varied sociodemographic, hospital, and patient factors independently associated with each. Further studies are needed to investigate targeted interventions aimed at minimizing readmission and prolonged LOS using the factors outlined above.

The Price of Otologic Procedures: Variation in Markup by Surgical Procedure and Geography in the United States.

OBJECTIVE: To characterize and analyze variation in price markup of seven common otologic surgeries by procedure and geographic region. STUDY DESIGN: Retrospective Analysis of the Centers for Medicare and Medicaid Services database of 2017 Medicare Provider Utilization and Payment Public File. SETTING: Inpatient and outpatient centers delivering Medicare-reimbursed services. PATIENTS: Full sample of patients undergoing procedures with Medicare fee-for-service final action claims during 2017. INTERVENTIONS: Seven procedures (myringotomy, tympanoplasty, mastoidectomy, tympanomastoidectomy stapedotomy/stapedectomy, cochlear implant, bone-anchored hearing aid). MAIN OUTCOME MEASURES: Markup ratio (MUR) is defined as the ratio of total charges to Medicare-allowable-costs; Variation in MUR was measured using coefficient of variation (CoV). RESULTS: Among all providers, the median MUR was 2.4 (interquartile range: 1.9-3.1). MUR varied significantly by procedure, from 2.3 for myringotomy to 8.7 for mastoidectomy (p < 0.01). MUR also varied significantly within procedure, with the least variation found in myringotomy (CoV = 0.46), and the greatest in cochlear implants (CoV = 0.92). Using the national average as baseline, MUR varied 71% between states, ranging from 1.75 to 6.24. Within the same state, significant variation was also noted, varying by 4% (CoV = 0.04) in Montana compared with 138% (CoV = 1.38) in Pennsylvania. MUR was not significantly correlated with patient comorbidity or Centers for Medicare and Medicaid Services risk scores. CONCLUSIONS: There was significant variation in the price of otologic surgery across geographic regions and procedures. The MUR for otology is lower or comparable to that reported in other surgical fields.

The utility of intraoperative navigation of the temporal bone for otolaryngology resident training.

OBJECTIVES: To determine whether image guidance improves dissection quality among residents in the temporal bone lab and to gauge their reactions to its use. METHODS: Prospective cohort study of nine otolaryngology residents who dissected cadaveric temporal bones with and without image guidance in the temporal bone laboratory. Quality of dissection was measured with the Welling scale. A survey was administered assessing their interactions with the navigation system. RESULTS: There was no significant difference in quality of dissection for the majority of structures or number of major errors with use of image guidance. Dissection quality of the tegmen (4.67 vs. 5.67, P = .034) and sinodural angle (0.83 vs. 1.56, P = .005) was superior in the non-navigation specimens. The majority of residents reported increased confidence with locating several critical anatomic structures and found the system intuitive to use. Nearly all thought it would be helpful in revision cases or for aural atresia. CONCLUSION: Image guidance did not improve quality of temporal bone dissection or number of major errors in this cohort of residents, but the majority found it intuitive and increased confidence in finding several structures. Navigation systems may play an important adjunctive role in resident education and further work is required to determine its optimal use. LEVEL OF EVIDENCE: NA Laryngoscope, 130:E368-E371, 2020.

Thirty-Day Readmission and Prolonged Length of Stay in Malignant Otitis Externa.

OBJECTIVES: To determine independent risk factors for 30-day readmission, prolonged length of stay (PLOS), and discharge to a rehabilitation facility for those with malignant otitis externa. METHODS: Retrospective cohort study of patients hospitalized with malignant otitis externa (International Classification of Diseases, 9th edition, code 380.14) in the Nationwide Readmissions Database (2013-2014). Overall and disease-specific complication and mortality data were analyzed using chi-squared and multivariate analysis. RESULTS: There were 1267 cases of malignant otitis externa extracted. A PLOS of ≥8 days (90th percentile) was found in 14.2% (n = 180) of patients, and 13.7% (n = 174) were discharged to a facility. Patients were readmitted within 30 days at a rate of 12.5% (n = 159). The overall rates of uncomplicated and complicated diabetes were found to be 42.1% and 17.8%, respectively. Factors independently associated with PLOS included undergoing a surgical procedure (odds ratio [OR] 2.08, P < .001), and having central nervous system complications (OR 3.21, P < .001). Independent risk factors for disposition to a facility included nutritional deficiency (OR 1.91, P = .029), PLOS (OR 4.61, P < .001), and age 65-79 years (OR 6.57, P = .001). Readmission was independently linked to PLOS (OR 3.14, P < .001). Diabetes was not an independent risk factor for any outcome. CONCLUSIONS: Thirty-day readmission, PLOS, and ultimate discharge to a rehabilitation facility were common and closely intertwined. Despite the classic association between diabetes and malignant otitis externa, diabetes was not an independent risk factor for any of our outcomes. LEVEL OF EVIDENCE: 4 Laryngoscope, 130:2220-2228, 2020.

The National Landscape of Acute Mastoiditis: Analysis of the Nationwide Readmissions Database.

OBJECTIVE: To determine risk factors for readmission, prolonged length of stay, and discharge to a rehabilitation facility in patients with acute mastoiditis. Trends in treatment and complication rates were also examined. STUDY DESIGN: Retrospective cohort study. SETTING: Nationwide Readmissions Database (2013, 2014). PATIENTS: Pediatric and adult patients in the Nationwide Readmissions Database with a primary diagnosis of acute mastoiditis. INTERVENTIONS: Medical treatment, surgical intervention. OUTCOME MEASURES: Rates of and risk factors for readmission, prolonged length of stay, and discharge to a rehabilitation facility. Procedure and complication rates were also examined. RESULTS: Four thousand two hundred ninety-five pediatric and adult admissions for acute mastoiditis were analyzed. The overall rates of readmission, prolonged length of stay, and discharge to a rehabilitation facility were 17.0, 10.4, and 10.2%, respectively. Children 4 to 17 years of age had the highest rates of intracranial complications, and children ≤3 years were most likely to undergo operative intervention. Any procedure was performed in 31.2% of cases, and undergoing myringotomy or mastoidectomy was associated with lower rates of readmission but higher rates of prolonged length of stay. Those with intracranial complications and subperiosteal abscesses had the highest surgical intervention rates. CONCLUSIONS: Readmission, prolonged length of stay, and discharge to a rehabilitation facility are common in patients with acute mastoiditis with various sociodemographic and disease-related risk factors. While once a primarily surgical disease, a minority of patients in our cohort underwent procedures. Undergoing a surgical procedure was protective against readmission but a risk factor for prolonged length of stay.

Endoscopic resection of a chorda tympani schwannoma: A novel approach for an exceedingly rare entity.

We present a novel approach for a rare chorda tympani schwannoma. A case report as well as special considerations in all phases of care are reviewed. Laryngoscope, 129:1188-1190, 2019.

Accuracy of a Modern Intraoperative Navigation System for Temporal Bone Surgery in a Cadaveric Model.

OBJECTIVES: To determine the accuracy of a modern navigation system in temporal bone surgery. While routine in other specialties, navigation has had limited use in the temporal bone due to issues of accuracy, perceived impracticality, and value. STUDY DESIGN: Prospective observational study. SETTING: Temporal bone laboratory. SUBJECTS AND METHODS: Eighteen cadaveric specimens were dissected after rigid fiducials were implanted and computed tomography scans were obtained. Target registration and target localization errors were then measured at various points. RESULTS: The mean overall target registration error was 0.48 ± 0.29 mm. The mean target localization error was 0.54 mm at the sinodural angle, 0.48 mm at the lateral semicircular canal, 0.55 mm at the round window, 0.39 mm at the oval window, and 0.52 mm at the second genu of the facial nerve. CONCLUSION: A modern navigation system demonstrated submillimeter accuracy for all points of interest. Its use in clinical as well as training settings has yet to be fully elucidated.