Background: Facial nerve injury can result in a spectrum of clinical presentations from complete facial paralysis (CFP) to facial synkinesis. Willingness to pay (WTP) and quality-adjusted life years are established metrics used to assess the societal value of treatments. Objective: To quantify the perceived value of surgery for CFP and synkinesis amongst casual observers, as measured by WTP and quality of life indices. Methods: Casual observers were shown standardized videos of faces with complete paralysis, synkinesis, and nonparalyzed controls (eight videos each). Observers were asked to imagine having each condition and to rate their quality of life and WTP for surgical repair. Results: A total of 557 observers were included (mean age 36.5 years, 59% female). Both complete paralysis and synkinesis were associated with reduced quality-adjusted life year indices (0.9 [95% confidence interval [CI] 0.87–0.93]) for synkinesis; 0.86 (95% CI: 0.83–0.89) for complete paralysis, p = 0.0011). The mean WTP was $22,791 for complete flaccid paralysis and $15,718 for synkinesis repair and increased with income. WTP per quality-adjusted-life year gained was $6,844 for complete paralysis and $6,604 for synkinesis ( p > 0.05). Conclusion: Observers perceived surgical repair of CFP and synkinesis as highly valuable and within common cost-effectiveness thresholds.
Comparing Patient and Casual Observer Perceptions of Complete Facial Paralysis and Facial Synkinesis
OBJECTIVE The objective of this study was to describe the long-term efficacy of single-fraction stereotactic radiosurgery (SRS) for the primary treatment of sporadic vestibular schwannoma. METHODS Adult (≥ 18 years of age) patients with sporadic vestibular schwannoma who underwent SRS from 2000 through 2022 were included. RESULTS A total of 749 patients met inclusion criteria, the majority (n = 566, 76%) of whom had tumors extending into the cerebellopontine angle at SRS. The median patient age at SRS was 62 years, half (50%) of the patients were women, and 744 (99%) exhibited House-Brackmann grade I facial nerve function at SRS. A total of 42 patients experienced radiosurgical failure and underwent salvage treatment; the median duration of follow-up for the patients who did not undergo salvage treatment was 7.0 years. Overall tumor control rates (95% CI, number still at risk) at 1, 3, 5, 10, and 15 years after SRS were 100% (100%–100%, 718), 98% (97%–99%, 589), 96% (94%–97%, 464), 92% (90%–95%, 258), and 91% (89%–94%, 125), respectively. Patient age (hazard ratio [HR] for a 10-year increase of 0.92, 95% CI 0.71–1.19; p = 0.5), presence of a macrocystic tumor (HR 0.59, 95% CI 0.14–2.46; p = 0.5), and treated tumor volume (HR for a 1-cm 3 increase of 1.02, 95% CI 0.88–1.18; p = 0.8) were not significantly associated with the risk of salvage. Three distinct post-SRS tumor behavior patterns were observed, with 13% of patients demonstrating tumor pseudoprogression, all but 4 of whom demonstrated pseudoprogression by year 5 post-SRS. CONCLUSIONS SRS demonstrates durable tumor control through 15 years of follow-up in most patients (91%); however, a minority are found to still experience SRS failure even beyond 10 years of surveillance. Although occurring in only a minority of patients, tumor pseudoprogression can be evident out to 5 years or longer post-SRS.
Defining clinically significant tumor size in sporadic vestibular schwannoma to inform timing of radiosurgery during wait-and-scan management: further evidence supporting size threshold surveillance
OBJECTIVE Wait-and-scan surveillance is now commonly employed for initial management of small- and medium-sized vestibular schwannomas. Although small differences in tumor size are unlikely to impact outcomes significantly, treatment with either radiosurgery or microsurgery is usually recommended following radiological detection of tumor growth. The objective of the current study was to identify potential inflection points in vestibular schwannoma tumor size, where the risks of treatment with single-fraction stereotactic radiosurgery (SRS) accelerate to inform timing of intervention. METHODS Adult (≥ 18 years old) patients with sporadic vestibular schwannoma who underwent SRS from 2000 through 2022 were included. RESULTS A total of 749 patients with a median age at SRS of 62 years were studied, the majority (n = 566 [76%]) of whom had tumors extending into the cerebellopontine angle (CPA) at SRS. The optimal tumor size cut point to predict SRS failure and need for salvage treatment was 4 mm or more of CPA extension (c-index 0.59, HR 3.60, p = 0.01). The optimal tumor size cut point to predict the outcome of facial nerve paresis was 13 mm or more of CPA extension, resulting in a c-index of 0.63 (HR 2.88, p = 0.01). Among patients with at least 3 months of surveillance before SRS, those with a tumor growth rate ≥ 2.5 mm/year were more likely to undergo salvage treatment than those with a growth rate < 2.5 mm/year, although this difference did not achieve statistical significance (HR 1.82, p = 0.18). CONCLUSIONS The risk of SRS failure requiring salvage treatment and the risk of post-SRS facial nerve paralysis increase at sizes of approximately 4 and 13 mm extension into the CPA, respectively, providing a size threshold anchor to help guide treatment decision-making regarding timing of SRS. Furthermore, rapid tumor growth during the initial wait-and-scan period may be associated with an increased risk of radiosurgical failure, which may influence choice of treatment.
Highly Coordinated Cochlear Implant Care With Remote Programming: Clinical, Financial, and Implementation Outcomes for the Complete Cochlear Implant Care (CCIC) Model
Objective: The Complete Cochlear Implant Care (CCIC) model is a highly coordinated care delivery model reducing and condensing in-person visits for cochlear implant (CI) patients, leveraging telehealth and remote programming. Clinical, quality-of-life, implementation, patient experience, and financial outcomes of the clinical trial are reported. Study design: Prospective, nonrandomized, 2-arm clinical trial Setting: Tertiary referral CI center Patients: Adult CI candidates Interventions: Cochlear implantation Main outcome measures: Speech perception, quality of life, implementation, patient experience, and financial outcomes for both CCIC and traditional care delivery models. Results: Patients participating in the traditional and CCIC delivery models demonstrated 12-month postoperative speech perception scores comparable to nationally reported outcomes (CNC 61% and 72% and AzBio in quiet 75% and 87% for traditional and CCIC cohorts, respectively). Quality-of-life evaluation using the CIQOL-10 demonstrated similar 12-month postoperative scores between groups (52 and 54 for traditional and CCIC cohorts, respectively). The CI Patient Experience Survey demonstrated high satisfaction outcomes in ease of communication, preparedness for surgery, and overall care in both cohorts. Implementation analysis of the CCIC model revealed perceived benefits from staff and clinicians; however, support for expansion of the program was contingent upon the availability of app-based or web-based remote programming technology. Finally, financial analysis revealed decreased out-of-pocket costs for CCIC patients. Conclusion: The CCIC model has the potential to dramatically streamline hearing health care delivery and reduce out-of-pocket costs for CI recipients. Clinical outcomes between cohorts were comparable in this feasibility study; however, a sufficiently powered trial is required to definitively comment on clinical outcomes with the new care delivery model.
Loss of Enhancement in Vestibular Schwannomas Post Stereotactic Radiosurgery: Impact on Tumor Control and Serviceable Hearing
Objective: Vestibular schwannomas (VSs) treated with stereotactic radiosurgery (SRS) often show transient loss of central tumor enhancement. We hypothesized that this loss of enhancement may correlate with better tumor control on follow-up imaging. Methods: We evaluated 198 consecutive patients from a single center who met eligibility criteria. Tumor volumes on the pre-SRS and post-SRS scans were quantified along with regions of loss of enhancement on the first post-SRS study. The latter was correlated with tumor volumes at follow-up, radiation isocenter density, and loss of serviceable hearing. Results: For the entire cohort, the median loss of enhancement on the first post-SRS scan was 14% (IQR: 6 to 25) and median rate of change in tumor volume was −4.5% per year (IQR: −10.5 to 1.5). Percent loss of central enhancement showed significant negative correlation with tumor growth not only for the entire cohort (correlation coefficient: −0.18, P =0.01), but also for the subset of patients who had available imaging until at least 2 years (n=185) and 4 years (n=179) post-SRS. Loss of enhancement also strongly correlated positively with tumor volumes and number of radiation isocenters and negatively with isocenter density. Finally, patients with greater percent loss of enhancement had an increased likelihood of progression to non-serviceable hearing, although this association was not statistically significant. Conclusions: These findings suggest that loss of central tumor enhancement in VSs post-SRS may be associated with improved tumor control.
Congenital Absence of Stapes Footplate: Enhanced Characterization With Photon Counting Detector
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Congress of Neurological Surgeons Systematic Review and Evidence-Based Guideline on Hearing Preservation Outcomes in Patients With Sporadic Vestibular Schwannoma: Update
BACKGROUND: Given the increasing prevalence and shifting disease demographic of vestibular schwannoma toward smaller tumors in people with less advanced symptoms, increasing emphasis has been placed on functional hearing preservation. OBJECTIVE: To provide an update to the 2018 CNS Guideline on hearing preservation outcomes in patients with sporadic vestibular schwannoma. METHODS: Systematic review and clinical practice guideline summarizing data pertaining to hearing preservation outcomes within the first 10 years after contemporary stereotactic radiation, microsurgery, or observation with serial imaging. The analysis incorporates studies included in the 2018 guideline and additional literature published up to May 20, 2022, providing a comprehensive up-to-date review of published clinical outcome data over time. RESULTS: Pooled estimated rates of serviceable hearing preservation are presented for observation, radiosurgery, and microsurgery for adults with sporadic vestibular schwannoma who have documented serviceable hearing in the ipsilateral ear at the time of diagnosis. Overall estimated rates of maintaining serviceable hearing are 78% at 2 years, 59% at 5 years, and 47% at 10 years during observation; 71% at 2 years, 59% at 5 years, and 38% at 10 years after radiosurgery; and 48% at 2 years, 40% at 5 years, and 32% at 10 years after microsurgery. In addition, features portending hearing outcome among management modalities are reported to guide accurate patient counseling. CONCLUSION: Regardless of treatment modality, fewer than half of patients with sporadic vestibular schwannoma who present with serviceable hearing will maintain useful hearing by 10 years. Across all studies, microsurgery and radiosurgery seem to accelerate this decline over the natural history, although further research is needed given limitations of available evidence. The full guideline can be seen online at https://www.cns.org/guidelines/treatment-adults-vestibular-schwannoma/4-hearing-preservation-outcomes-in-patients-with-s
Tracking Pleomorphic Adenoma Incidence Trends Over 47 Years: A Population‐Based Study
Abstract Objective To (1) track the incidence of pleomorphic adenomas (PAs) and (2) compare demographic and treatment trends in PAs over the last five decades in a single county. Study Design Retrospective cohort of all patients with a pathologic diagnosis of nonrecurrent PA from January 1976 to December 2022. Setting Olmsted County, Minnesota. Methods Incidence was calculated per 100,000 persons/year and age and sex‐adjusted to the US 2020 census data. Incidence trends were identified using Poisson rate regression models. Changes in clinical features of diagnosis were evaluated using Spearman rank correlation coefficient tests, Wilcoxon rank sum tests, and Kruskal‐Wallis tests. Results In total, 251 patients with PA were identified. The median age at diagnosis was 50.0 years with a slight female predominance (1.24:1). The adjusted incidence during this period is 4.79/100,000 person‐years, increasing from 2.50 in 1976 to 1979 to 5.73/100,000 persons/year in 2020 to 2022. Less extensive surgery, including partial and superficial parotidectomies, increased significantly from 1976 to 2022, whereas total parotidectomies decreased ( P < .0001). The number of patients who presented with an incidental imaging finding increased during this time period ( P < .001), as did the age at diagnosis (45‐51 years, P = .05) Conclusion The average annual incidence of PAs in Olmsted County from 1976 to 2022 is higher than reported US estimates and has increased over the last five decades. The percentage of patients who presented with incidental imaging findings increased over this period, as did the age at diagnosis. These findings highlight modern imaging techniques and an aging population more willing to seek workup and treatment of a benign parotid mass.