Racial and ethnic disparities in human papillomavirus (HPV) vaccine uptake among United States adults, aged 27-45 years

In 2018, the Food and Drug Administration expanded the age of eligibility for the human papillomavirus (HPV) vaccine to 27 to 45 years. However, it is unclear if there are racial/ethnic disparities in HPV vaccine uptake for this age-group following this expanded recommendation. We aimed to identify any disparities in HPV vaccine in 27 to 45 year-olds based on sociodemographic factors. We analyzed nationally representative, cross-sectional data from the 2019 National Health Interview Survey (n = 9440). Logistic regression models estimated the odds of vaccine uptake (receipt of ≥1 vaccine dose) based on sociodemographic factors. Participants were mostly Non-Hispanic Whites (60.7%) and females (50.9%). In adjusted models, females had over three times greater odds of vaccine uptake compared to males (aOR = 3.58; 95% CI 3.03, 4.23). Also, compared to Non-Hispanic Whites, Non-Hispanic Blacks were 36% more likely (aOR = 1.36; 95% CI 1.09, 1.70), and Hispanics were 27% less likely (aOR = 0.73; 95% CI 0.58, 0.92) to receive the vaccine. Additionally, individuals without a usual place of care had lower odds of vaccine uptake (aOR = 0.72; 95% CI 0.57, 0.93), as were those with lower educational levels (aORhigh school = 0.62; 95% CI 0.50, 0.78; aORsome college = 0.83; 95% CI 0.70, 0.98). There are disparities in HPV vaccine uptake among 27 to 45 year-olds, and adult Hispanics have lower odds of receiving the vaccine. Given the vaccine's importance in cancer prevention, it is critical that these disparities are addressed and mitigated.

Molecular Alterations and Comprehensive Clinical Management of Oncocytic Thyroid Carcinoma: A Review and Multidisciplinary 2023 Update

Importance

Oncocytic (Hürthle cell) thyroid carcinoma is a follicular cell-derived neoplasm that accounts for approximately 5% of all thyroid cancers. Until recently, it was categorized as a follicular thyroid carcinoma, and its management was standardized with that of other differentiated thyroid carcinomas. In 2022, given an improved understanding of the unique molecular profile and clinical behavior of oncocytic thyroid carcinoma, the World Health Organization reclassified oncocytic thyroid carcinoma as distinct from follicular thyroid carcinoma. The International Thyroid Oncology Group and the American Head and Neck Society then collaborated to review the existing evidence on oncocytic thyroid carcinoma, from diagnosis through clinical management and follow-up surveillance.

Observations

Given that oncocytic thyroid carcinoma was previously classified as a subtype of follicular thyroid carcinoma, it was clinically studied in that context. However, due to its low prevalence and previous classification schema, there are few studies that have specifically evaluated oncocytic thyroid carcinoma. Recent data indicate that oncocytic thyroid carcinoma is a distinct class of malignant thyroid tumor with a group of distinct genetic alterations and clinicopathologic features. Oncocytic thyroid carcinoma displays higher rates of somatic gene variants and genomic chromosomal loss of heterozygosity than do other thyroid cancers, and it harbors unique mitochondrial DNA variations. Clinically, oncocytic thyroid carcinoma is more likely to have locoregional (lymph node) metastases than is follicular thyroid carcinoma-with which it was formerly classified-and it develops distant metastases more frequently than papillary thyroid carcinoma. In addition, oncocytic thyroid carcinoma rarely absorbs radioiodine.

Conclusions and Relevance

The findings of this review suggest that the distinct clinical presentation of oncocytic thyroid carcinoma, including its metastatic behavior and its reduced avidity to radioiodine therapy, warrants a tailored disease management approach. The reclassification of oncocytic thyroid carcinoma by the World Health Organization is an important milestone toward developing a specific and comprehensive clinical management for oncocytic thyroid carcinoma that considers its distinct characteristics.

Deep-Learning-Based Screening and Ancillary Testing for Thyroid Cytopathology

Thyroid cancer is the most common malignant endocrine tumor. The key test to assess preoperative risk of malignancy is cytologic evaluation of fine-needle aspiration biopsies (FNABs). The evaluation findings can often be indeterminate, leading to unnecessary surgery for benign post-surgical diagnoses. We have developed a deep-learning algorithm to analyze thyroid FNAB whole-slide images (WSIs). We show, on the largest reported data set of thyroid FNAB WSIs, clinical-grade performance in the screening of determinate cases and indications for its use as an ancillary test to disambiguate indeterminate cases. The algorithm screened and definitively classified 45.1% (130/288) of the WSIs as either benign or malignant with risk of malignancy rates of 2.7% and 94.7%, respectively. It reduced the number of indeterminate cases (N = 108) by reclassifying 21.3% (N = 23) as benign with a resultant risk of malignancy rate of 1.8%. Similar results were reproduced using a data set of consecutive FNABs collected during an entire calendar year, achieving clinically acceptable margins of error for thyroid FNAB classification.

Lateral neck dissection surgeon volume and complications in head and neck endocrine malignancy

Background

Increased surgeon volume is associated with decreased complications for many surgeries, including thyroidectomy. We sought to use two national databases to assess for associations between surgeon volume and complications in patients undergoing lateral neck dissection for thyroid or parathyroid malignancy.

Methods

Lateral neck dissections for thyroid and parathyroid cancer from the Nationwide Inpatient Sample and State Inpatient Database were analyzed. The primary outcome was any inpatient complication common to thyroidectomy, parathyroidectomy, or lateral neck dissection. The principle independent variable was surgeon volume. Multivariable analysis was then performed on this retrospective cohort study.

Results

The 1,094 Nationwide Inpatient Sample discharges had a 28% (305/1,094) complication rate. After adjustment, surgeons with volumes between 3-34 neck dissections/year demonstrated a surgeon volume-complication rate association [adjusted odds ratio: 1.03; 95% confidence interval (CI): 1.01-1.05]. The 1,235 State inpatient Database discharges had a 21% (258/1,235) overall complication rate, and no association between surgeon volume and complication rates (P=0.25).

Conclusions

This retrospective review of 2,329 discharges for patients undergoing lateral neck dissection for thyroid or parathyroidectomy demonstrated somewhat conflicting results. The Nationwide Inpatient Sample demonstrated increasing complication rates for increasing surgeon volume among intermediate volume surgeons, while the State Inpatient Database demonstrated no surgeon volume-complication association. Given these disparate results, and further limitations with these databases, conclusions regarding surgical volume and clinical decision making based on these data should be assessed cautiously.

Integrated Health Maintenance Reminders for Improved HPV Vaccine Administration: Toward Improvements in Completion Disparities

OBJECTIVE

To evaluate the effect of a health maintenance reminder (HMR) on human papillomavirus (HPV) vaccine administration and completion across different age, insurance, and race cohorts.

STUDY DESIGN

Retrospective pre-post analysis.

SETTING

Academic primary care.

METHODS

Patients aged 9 to 26 who had initiated the HPV vaccine series from 2016 to 2021 were analyzed, based on current age-based standards. The cohort was divided based on vaccine uptake before and after the implementation of the HMR program in February 2020. The multivariate analysis estimated the odds of vaccine completion based on sociodemographic factors, and variable interactions were investigated to determine independent associations between sociodemographic factors and HMR implementation.

RESULTS

There were 7654 individual patients (mean age was 15.8 years; 46.7 were males; and 50.7% were white). HPV vaccine completion rates increased post-HMR implementation by 59.2% (37% pre-, and 58.9% post-HMR; p < .001) in the entire cohort. Overall, black patients (adjusted odds ratio [aOR] = 0.68; 95% confidence interval [CI]: 0.60, 0.70) and patients ≥18 years (aOR = 0.13; 95% CI: 0.11, 0.15) were significantly less likely to complete their vaccine series; however, this improved significantly following HMR in these groups (p < .001). Post-HMR, race, and insurance status were not independently associated with disparate vaccine completion rates, however, age was, and patients ≤14 or younger had higher odds of vaccine completion (aOR = 3.54; 95% CI: 2.91, 4.32).

CONCLUSION

The implementation of an HMR was associated with increased HPV vaccine uptake across age and race groups in this single-institution study. Future research should explore barriers to implementing HMRs in different healthcare settings.

Salvage Cryoablation for Local Recurrences of Thyroid Cancer Inseparable from the Trachea and Neurovascular Structures

PURPOSE

To demonstrate safety, feasibility, and effectiveness of cryoablation of recurrent papillary thyroid cancer ineligible for reoperation because of scarring, eligible for focal ablation as defined within 2015 American Thyroid Association guideline sections C16 and C17.

MATERIALS AND METHODS

With multidisciplinary consensus, cryoablation was performed with curative intent for 15 tumors in 10 patients between January 2019 and July 2021. Demographics, procedural details, and serial postprocedural imaging findings were analyzed.

RESULTS

The mean age was 72.5 years (range, 57-88 years), and 80% of the patients were women. The tumors (mean size, 16 mm ± 6; range, 9-29 mm) received 1 session of cryoablation with 100% technical success. The mean and median postcryoablation tumor volumetric involution rates were 88% and 99%, respectively, with 9 (60%) of 15 tumors involuting completely or down to the scar and 6 (40%) involuting partially at the end of the study period. Tumor size did not increase after cryoablation (0% local progression rate). All tumors abutted the trachea, skin, and/or vascular structures, and hydrodissection failed in all cases because of scarring. The major adverse event rate was 20% (3/15), with 2 cases of voice change and 1 case of Horner syndrome; all resolved at 6 months with no permanent sequelae. No vascular, tracheal, dermal, or infectious adverse events occurred during a mean follow-up of 242 days (range, 114-627 days). One patient died at 386 days after cryoablation because of unrelated cholangiocarcinoma.

CONCLUSIONS

Cryoablation of local recurrences of papillary thyroid cancer abutting the trachea and/or neurovascular structures in the setting of hydrodissection failure because of scarring yielded a mean volumetric involution of 88%, primary efficacy of 60%, and objective response rate of 100% with no local recurrences or permanent complications during a mean follow-up of 242 days. The secondary efficacy and longer-term outcomes remain forthcoming.

Abstract P023: The impact of limited English proficiency and healthcare access on HPV vaccine uptake in the United States

Background: Limited English proficiency (LEP) impacts patient-provider communication and access to healthcare, both of which are also associated with human papillomavirus (HPV) vaccine uptake. We examined the association between LEP and HPV vaccine uptake among parents/guardians of adolescents and young adults eligible for the HPV vaccination in the United States. Methods: Using a cross-sectional study design, we analyzed nationally representative data from the National Health and Nutrition Examination Survey between 2017 and 2020 (n = 3,993). Outcome of interest was HPV vaccine uptake, defined as initiation (at least one dose), or completion (at least two or three doses). LEP was defined as completing the questionnaire in a language other than English and/or using an interpreter. Logistic regression models estimated odds of HPV vaccine uptake based on LEP, adjusting for covariates, including age, sex, healthcare access, income, race, and ethnicity. Analyses were stratified into groups aged 9-17 and 18-26 years. Results: LEP rate was 11.2% in the 9 to 17 age-group (n = 2,584), and 8.8% in the 18-26 age-group (n = 1,409). In the adjusted analyses, we found no association between LEP and HPV vaccination in either age groups (for 9-17 years: aORinitiation = 1.10; 95% CI 0.69, 1.77; aORcompletion = 1.04; 95% CI 0.60, 1.81; and for 18-26 years: aORinitiation = 0.70; 95% CI 0.40, 1.25; aORcompletion for 18-26 years = 1.23; 95% CI 0.56, 2.70). However, we found significant associations between HPV vaccine uptake and age, sex, race/ethnicity, and healthcare access variables in both age groups. Conclusions: While language proficiency status was not significantly associated with HPV vaccine uptake in our study, we found that age, sex, race/ethnicity, and access to care are associated with HPV vaccination. This indicates the need for continued interventions targeting factors to increase access to HPV vaccine.

Citation Format: Marian F. Talip, Trinity Casimir, Jillian H. Hurst, Daniel J. Rocke, Tammara L. Watts, Trinitia Y. Cannon, Eric Adjei Boakye, Nosayaba Osazuwa-Peters. The impact of limited English proficiency and healthcare access on HPV vaccine uptake in the United States. [abstract]. In: Proceedings of the AACR Special Conference: Precision Prevention, Early Detection, and Interception of Cancer; 2022 Nov 17-19; Austin, TX. Philadelphia (PA): AACR; Can Prev Res 2023;16(1 Suppl): Abstract nr P023.

Octreotide may improve pharyngocutaneous fistula healing through downregulation of cystatins: A pilot study

Background

Pharyngocutaneous fistula (PCF) and salivary leaks are well known complications of head and neck surgery. The medical management of PCF has included the use of octreotide without a well-defined understanding of its therapeutic mechanism. We hypothesized that octreotide induces alterations in the saliva proteome and that these alterations may provide insight into the mechanism of action underlying improved PCF healing. We undertook an exploratory pilot study in healthy controls that involved collecting saliva before and after a subcutaneous injection of octreotide and performing proteomic analysis to determine the effects of octreotide.

Methods

Four healthy adult participants provided saliva samples before and after subcutaneous injection of octreotide. A mass-spectrometry based workflow optimized for the quantitative proteomic analysis of biofluids was then employed to analyze changes in salivary protein abundance after octreotide administration.

Results

There were 3076 human, 332 Streptococcus mitis, 102 G. haemolyans, and 42 Granulicatella adiacens protein groups quantified in saliva samples. A paired statistical analysis was performed using the generalized linear model (glm) function in edgeR. There were and ~300 proteins that had a p < .05 between the pre- and post-octreotide groups ~50 proteins with an FDR-corrected p < .05 between pre- and post-groups. These results were visualized using a volcano plot after filtering on proteins quantified by 2 more or unique precursors. Both human and bacterial proteins were among the proteins altered by octreotide treatment. Notably, four isoforms of the human cystatins, belonging to a family of cysteine proteases, that had significantly lower abundance after treatment.

Conclusion

This pilot study demonstrated octreotide-induced downregulation of cystatins. By downregulation of cystatins in the saliva, there is decreased inhibition of cysteine proteases such as Cathepsin S. This results in increased cysteine protease activity that has been linked to enhanced angiogenic response, cell proliferation and migration that have resulted in improved wound healing. These insights provide first steps at furthering our understanding of octreotide's effects on saliva and reports of improved PCF healing.

Prediction model to estimate overall survival benefit of postoperative radiotherapy for resected major salivary gland cancers

OBJECTIVES

To develop and validate a prediction model to estimate overall survival (OS) with and without postoperative radiotherapy (PORT) for resected major salivary gland (SG) cancers.

MATERIALS AND METHODS

Adults in the National Cancer Database diagnosed with invasive non-metastatic major SG cancer between 2004 and 2015 were identified. Exclusion criteria included prior malignancy, pT1N0 or unknown stage, no or unknown surgery, and neoadjuvant therapy. Cox proportional hazards models evaluated the effect of covariates on OS. A multivariate regression model was utilized to predict 2-, 5-, and 10-year OS. Internal cross-validation was performed using 50-50 hold-out and Harrell's concordance index.

RESULTS

18,400 subjects met inclusion criteria, including 9,721 (53%) who received PORT. Distribution of SG involvement was 86% parotid, 13% submandibular, and 1% sublingual. Median follow-up for living subjects was 4.9 years. PORT was significantly associated with improved OS for the following subgroups by log-rank test: pT3 (p < 0.001), pT4 (p < 0.001), high grade (p < 0.001), node-positive (p < 0.001), and positive margin (p < 0.001). The following variables were incorporated into a multivariate model: age, sex, Charlson-Deyo comorbidity score, involved SG, pathologic T-stage, grade, margin status, ratio of nodal positivity, and PORT. The resulting model based on data from 6,138 subjects demonstrated good accuracy in predicting OS, with Harrell's concordance index of 0.73 (log-rank p < 0.001).

CONCLUSION

This cross-validated prediction model estimates 2-, 5-, and 10-year differences in OS based on receipt of PORT for resected major SG cancers using readily available clinicopathologic features. Clinicians can utilize this tool to aid personalized adjuvant therapy decisions.

Surgeon Volume and Complications in Lateral Neck Dissection for Squamous Cell Carcinoma: A Multidatabase Analysis

OBJECTIVE

To determine whether annual surgeon volume of lateral neck dissections for squamous cell carcinoma is associated with complication rates.

STUDY DESIGN

Retrospective review.

SETTING

Two US databases spanning 2000 to 2014.

METHODS

Neck dissections for squamous cell carcinoma from the National Inpatient Sample and State Inpatient Databases were analyzed. The primary outcome was any in-hospital complication common to neck dissection. The principal independent variable was surgeon volume. A multivariable logistic generalized estimating equation with a piecewise linear spline for surgeon volume was fit to assess its association with complication.

RESULTS

The National Inpatient Sample had 3517 discharges fitting criteria, a median surgeon volume of 12, and an 11.1% complication rate. A 1-unit increase in surgeon volume was associated with a 7% increase in the odds of complication when volume ranged between 4 and 19 (adjusted odds ratio [AOR], 1.07; 95% CI, 1.04-1.11) and with a 3% decrease in the odds of complication when volume ranged between 19 and 51 (AOR, 0.97; 95% CI, 0.96-0.99). The State Inpatient Databases had 2876 discharges fitting criteria, a median surgeon volume of 30, and a 13.5% complication rate. Surgeon volume was not associated with complication when <27 (AOR, 1.01; 95% CI, 0.99-1.02), but a 5-unit increase in volume was associated with a 7% decrease in the odds of complication with volume ≥27 (AOR, 0.93; 95% CI, 0.88-0.98).

CONCLUSIONS

Surgeon volume was associated with complications for most volume ranges and with lower odds of complication for high-volume surgeons.

Postoperative radiotherapy is associated with improved overall survival for alveolar ridge squamous cell carcinoma with adverse pathologic features

BACKGROUND

Alveolar ridge squamous cell carcinoma (ARSCC) is poorly represented in randomized trials.

METHODS

Adults in the National Cancer Database diagnosed with ARSCC between 2010 and 2014 who should be considered for postoperative radiotherapy (PORT) based on National Comprehensive Cancer Network (NCCN)-defined risk factors were identified.

RESULTS

Eight hundred forty-five (58%) of 1457 patients meeting the inclusion criteria received PORT. PORT was associated with improved overall survival (OS) on unadjusted (hazard ratio [HR] 0.83, 95% confidence interval [CI] 0.70-0.98, P = .02) and multivariable (HR 0.78, 95% CI 0.64-0.94, P = .002) analyses. PORT was associated with significantly improved 5-year OS for patients with 1 (68% vs 58%, P < .001), 2 (52% vs 31%, P < .001), and ≥3 (38% vs 24%, P < .001) NCCN-defined risk factors. Prognostic variables significantly associated with worse OS on multivariable analysis included advanced age, primary tumor size ≥3 cm, high grade, positive margin(s), stage N2-3, level IV/V nodal metastasis, and extranodal extension.

CONCLUSION

PORT for resected ARSCC with adverse pathologic features is associated with significantly improved OS.

A Retrospective Study of Lymph Node Yield in Lateral Neck Dissection for Papillary Thyroid Carcinoma

OBJECTIVE

Lateral neck dissection (LND) is important in managing papillary thyroid carcinomas (PTCs). This study aimed to evaluate the relationship between lymph node yield (LNY) for LND and patient outcomes, specifically postoperative serum thyroglobulin levels (sTG) and radioiodine uptake on thyroid scan, and to estimate a threshold LNY to signify adequate LND.

METHODS

Patients diagnosed with PTC who underwent LND from 2006 to 2015 at a single institution were included. Linear regression with restricted cubic splines was used to characterize the association of LNY with outcomes. Outcomes were log-transformed to achieve a more symmetric distribution prior to regression. For nonlinear associations, a Monte Carlo Markov Chain procedure was used to estimate a threshold LNY associated with postoperative outcome. This threshold was then used to define high LNY versus low LNY in the subsequent analyses.

RESULTS

In total, 107 adult patients were included. There was a significant relationship between LNY and postoperative sTG level (P = .004), but not radioiodine uptake (P = .64). An LNY of 42.96 was identified, which was associated with the maximum change in sTG level. No association was found between LNY groups (LNY ≥ 43 vs < 43) and radioiodine uptake, risk of complication, or longer operative times (all P > .05). High LNY was associated with a decrease in log(sTG) (estimate = -1.855, P = .03), indicating that adequacy of LND is associated with an 84.4% decrease in sTG.

CONCLUSION

These results suggest an association between LNY and postoperative sTG level, with an estimated threshold of 43 nodes. This has implications for adequate therapeutic LND; additional work is needed to validate thresholds for clinical practice.

The effect of lateral neck dissection on complication rate for total thyroidectomy

PURPOSE

To determine the complication profile for total thyroidectomy with and without concomitant lateral neck dissection using a large administrative database.

MATERIALS AND METHODS

The IBM MarketScan® Commercial Database (2010-2014) analytic cohort was queried for patients ≥18 years or older undergoing total thyroidectomy (or equivalent procedures) from January 1, 2010 to June 30, 2014. Subgroup analysis was performed for patients undergoing concomitant unilateral and bilateral lateral neck dissection. The complication profiles were described.

RESULTS

55,204 patients underwent total thyroidectomy or equivalent procedures. Hypoparathyroidism or hypocalcemia was coded in 20.3% overall, with 4.7% having permanent hypoparathyroidism. Vocal cord paralysis was coded in 3.3% overall with permanent rate of 0.7%. Tracheotomy was performed in 0.3% of patients. 2743 underwent total thyroidectomy with concomitant unilateral lateral neck dissection, and 560 of these patients underwent bilateral lateral neck dissection. In patients undergoing unilateral lateral neck dissection, 30.5% of patients have hypoparathyroidism/hypocalcemia coded, with a permanent rate of 8.8%. Vocal cord paralysis was coded in 8.3% of patients, with a permanent rate of 1.9%. Tracheotomy was performed in 1.2% of patients. In patients undergoing bilateral lateral neck dissection, 39.6% had hypoparathyroidism/hypocalcemia coded, with a permanent rate of 10.9%. These patients had vocal cord paralysis coded in 10.2% of cases, with a permanent rate of 2.1%. Tracheotomy was performed in 2.5% of patients.

CONCLUSION

The addition of unilateral and especially bilateral lateral neck dissection increases both overall and permanent complication rates for total thyroidectomy. These data may help to inform preoperative discussions with patients.

HSR19-092: Adjuvant Radiotherapy Is Associated with Improved Overall Survival for Resected Alveolar Ridge Squamous Cell Carcinoma With Adverse Pathologic Features

Background: Alveolar ridge (AR) squamous cell carcinoma (SCC) is poorly represented on prospective clinical trials. Adjuvant management is extrapolated from more common head and neck SCC, including those with a stronger influence from the human papillomavirus. The objective of this analysis is to determine the association between adjuvant radiotherapy (RT) and overall survival (OS) for resected ARSCC based on adverse pathologic features. Methods: Adult subjects in the National Cancer Database diagnosed with invasive nonmetastatic ARSCC between 2010–2014 were identified. Exclusion criteria included prior malignancy, no/unknown surgery, unknown receipt of RT, RT dose <50 Gy or >80 Gy, RT fractions >68, T1–2N0 disease without identifiable NCCN-defined risk factors (positive margin, lymphovascular invasion, pT3–4, N2–3, extranodal extension, or level IV/V nodal metastasis), and unknown/missing NCCN risk factor data. Log-rank test stratified by RT and Cox regression analyses with respect to OS were performed. Results: 1,450 subjects met inclusion criteria, of which 825 (57%) received RT. Median follow-up was 27 months. Adjuvant RT was associated with improved OS (72% vs 65% at 2 years, log-rank P=.004). Stratified by number of NCCN-defined risk factors, adjuvant RT was associated with improved OS for subjects with 2 (74% vs 58% at 2 years, log-rank P<.001) and ≥3 (54% vs 29% at 2 years, log-rank P<.001) risk factors. Adjuvant RT was significantly associated with improved OS on univariate (HR, 0.80; 95% CI, 0.68–0.94; P=.008) and multivariate (HR, 0.72; 95% CI, 0.60–0.87; P=.001) analyses, the latter adjusted for age, comorbidity score, and adverse pathologic features. Each NCCN-defined risk factor, high tumor grade, primary tumor ≥3 cm, and ≥5% nodal positivity (number of pathologic nodes positive among nodes resected) were significantly associated with worse OS on univariate and multivariate analyses. Conclusions: Adjuvant RT for resected ARSCC with adverse pathologic features is associated with significantly improved OS. Subjects with a primary tumor ≥3 cm, high tumor grade, and ≥5% nodal positivity in addition to the NCCN-defined risk factors should be considered for adjuvant RT.

Assessing effects of pressure on tumor and normal tissue physiology using an automated self-calibrated, pressure-sensing probe for diffuse reflectance spectroscopy

Diffuse reflectance spectroscopy (DRS) represents a quantitative, noninvasive, nondestructive means of assessing vascular oxygenation, vascularity, and structural properties. However, it is known that such measurements can be influenced by the effects of pressure, which is a major concern for reproducible and operator-independent assessment of tissues. Second, regular calibration is a necessary component of quantitative DRS to account for factors such as lamp decay and fiber bending. Without a means of reliably controlling for these factors, the accuracy of any such assessments will be reduced, and potentially biased. To address these issues, a self-calibrating, pressure-controlled DRS system is described and applied to both a patient-derived xenograft glioma model, as well as a set of healthy volunteers for assessments of oral mucosal tissues. It was shown that pressure had a significant effect on the derived optical parameters, and that the effects on the optical parameters were magnified with increasing time and pressure levels. These findings indicate that not only is it critical to integrate a pressure sensor into a DRS device, but that it is also important to do so in an automated way to trigger a measurement as soon as possible after probe contact is made to minimize the perturbation to the tissue site.

Cost-effectiveness analysis of a non-contrast screening MRI protocol for vestibular schwannoma in patients with asymmetric sensorineural hearing loss

PURPOSE

We aimed to determine if a non-contrast screening MRI is cost-effective compared to a full MRI protocol with contrast for the evaluation of vestibular schwannomas.

METHODS

A decision tree was constructed to evaluate full MRI and screening MRI strategies for patients with asymmetric sensorineural hearing loss. If a patient were to have a positive screening MRI, s/he received a full MRI. Vestibular schwannoma prevalence, MRI specificity and sensitivity, and gadolinium anaphylaxis incidence were obtained through literature review. Institutional charge data were obtained using representative patient cohorts. One-way and probabilistic sensitivity analyses were completed to determine CE model threshold points for MRI performance characteristics and charges.

RESULTS

The mean charge for a full MRI with contrast was significantly higher than a screening MRI ($4089 ± 1086 versus $2872 ± 741; p < 0.05). The screening MRI protocol was more cost-effective than a full MRI protocol with a willingness-to-pay from $0 to 20,000 USD. Sensitivity analyses determined that the screening protocol dominated when the screening MRI charge was less than $4678, and the imaging specificity exceeded 78.2%. The screening MRI protocol also dominated when vestibular schwannoma prevalence was varied between 0 and 1000 in 10,000 people.

CONCLUSION

A screening MRI protocol is more cost-effective than a full MRI with contrast in the diagnostic evaluation of a vestibular schwannoma. A screening MRI likely also confers benefits of shorter exam time and no contrast use. Further investigation is needed to confirm the relative performance of screening protocols for vestibular schwannomas.

Variation in tonsillectomy rates by health care system type

OBJECTIVE

To analyze variation in tonsillectomy procedure rates between health care system types around the world.

STUDY DESIGN

International database analysis.

METHODS

The 2015 Organization for Economic Co-operation and Development (OECD) Health Statistics surgical procedures database was used to ascertain tonsillectomy procedure volumes for 31 countries. Each country's health system type and structure were classified by overall system type, and by health care regulation, financing, and provision methods. Each system type and structure variable were compared using the rate of tonsillectomy procedures per 100,000 citizens.

RESULTS

10.5 million tonsillectomy procedures completed between 1993 and 2014 were analyzed. Overall, social health insurance system types had higher total tonsillectomy rates versus other health care system types (p < 0.05 for each comparison). Health systems with private care provision had a higher procedure rate versus state provided care (159.1 vs. 131.1 per 100,000 citizens; p = 0.002). Health care systems with societal regulation and financing had a higher procedure count versus state regulated or financed care (regulation 193.3 vs. 139.7 per 100,000 citizens, p < 0.0001; financing 168.2 vs. 135.0 per 100,000 citizens, p = 0.0004).

CONCLUSIONS

The volume of tonsillectomy procedures is associated with a health care system's overall structure, regulation, financing, and provision methods. International health care systems with state mediated provision, regulation, and financing had lower tonsillectomy rates versus systems with private provision, and societal regulation or financing. Further study is needed to determine differences in indications for tonsillectomy between countries, but these results underscore potential variation in health care delivery in different systems.

Physician and Patient and Caregiver Health Attitudes and Their Effect on Medicare Resource Allocation for Patients With Advanced Cancer

IMPORTANCE

Physicians must participate in end-of-life discussions, but they understand poorly their patients' end-of-life values and preferences. A better understanding of these preferences and the effect of baseline attitudes will improve end-of-life discussions.

OBJECTIVE

To determine how baseline attitudes toward quality vs quantity of life affect end-of-life resource allocation.

DESIGN, SETTING, AND PARTICIPANTS

Otolaryngology-head and neck surgery (OHNS) physicians were recruited to use a validated online tool to create a Medicare health plan for advanced cancer patients. During the exercise, participants allocated a limited pool of resources among 15 benefit categories. These data were compared with preliminary data from patients with cancer and their caregivers obtained from a separate study using the same tool. Attitudes toward quality vs quantity of life were assessed for both physicians and patients and caregivers.

INTERVENTIONS

Participation in online assessment exercise.

MAIN OUTCOMES AND MEASURES

Medicare resource allocation.

RESULTS

Of 9120 OHNS physicians e-mailed, 767 participated. Data collected from this group were compared with data collected from 146 patients and 114 caregivers. Compared with patients and caregivers, OHNS physician allocations differed significantly in all 15 benefit categories except home care. When stratified by answers to 3 questions about baseline attitudes toward quality vs quantity of life, there were 3 categories in which allocations of patients and caregivers differed significantly from the group with the opposite attitude for at least 2 questions: other medical care (question 1, P < .001; question 2, P = .005), palliative care (question 1, P = .008; question 2, P = .006; question 3, P = .009), and treatment for cancer (questions 1 and 2, P < .001). In contrast, physician preferences showed significant differences in only 1, nonmatching category for each attitude question: cash (question 1, P = .02), drugs (question 2, P = .03), and home care (question 3, P = .048).

CONCLUSIONS AND RELEVANCE

Patients with cancer and their caregivers have different preferences from physicians. These preferences are, for these patients and their caregivers, affected by their baseline health attitudes, but physician preferences are not. Understanding the effect of baseline attitudes is important for effective end-of-life discussions.

Effect of physician perspective on allocation of Medicare resources for patients with advanced cancer

OBJECTIVES

To assess how physician perspective (perspective of patient vs perspective of physician) affects Medicare resource allocation for patients with advanced cancer and compare physician allocations with actual cancer patient and caregiver allocations.

STUDY DESIGN

Cross-sectional assessment.

SETTING

National assessment.

SUBJECTS

Otolaryngologists.

METHODS

Physicians used a validated tool to create a Medicare plan for patients with advanced cancer. Participants took the perspective of an advanced cancer patient and made resource allocations between 15 benefit categories (assessment 2, November/December 2012). Results were compared with data from a prior assessment made from a physician's perspective (assessment 1, February/March 2012) and with data from a separate study with patients with cancer and caregivers.

RESULTS

In total, 767 physicians completed assessment 1 and 237 completed assessment 2. Results were compared with 146 cancer patient and 114 caregiver assessments. Assessment 1 physician responses differed significantly from patients/caregivers in 14 categories (P < .05), while assessment 2 differed in 11. When comparing physician data, assessment 2 allocations differed significantly from assessment 1 in 7 categories. When these 7 categories were compared with patient/caregiver data, assessment 2 allocations in emotional care, drug coverage, and nursing facility categories were not significantly different. Assessment 1 allocations in cosmetic care, dental, home care, and primary care categories were more similar to patient/caregiver preferences, although all but home care were still significantly different.

CONCLUSIONS

Otolaryngology-head and neck surgery physician perspectives on end-of-life care differ significantly from cancer patient/caregiver perspectives, even when physicians take a patient's perspective when allocating resources. This demonstrates the challenges inherent in end-of-life discussions.

Physician knowledge of and attitudes toward the Patient Protection and Affordable Care Act

OBJECTIVE

To assess otolaryngology physician knowledge of and attitudes toward the Patient Protection and Affordable Care Act (PPACA) and compare the association of bias toward the PPACA with knowledge of the provisions of the PPACA.

STUDY DESIGN

Cross-sectional survey.

SETTING

Nationwide assessment.

SUBJECTS

Members of the American Academy of Otolaryngology-Head and Neck Surgery.

METHODS

Otolaryngology physicians answered 10 true/false questions about major provisions of the PPACA. They also indicated their level of agreement with 9 statements about health care and the PPACA. Basic demographic information was collected.

RESULTS

Email solicitation was sent to 9972 otolaryngologists and 647 responses were obtained (6.5% response rate). Overall correct response rate was 74%. Fewer than 60% of physicians correctly answered questions on whether small businesses receive tax credits for providing health insurance, the effect of the PPACA on Medicare benefits, and whether a government-run health insurance plan was created. Academic center practice setting, bias toward the PPACA, and Democratic Party affiliation were associated with significantly more correct responses.

CONCLUSION

Overall physician knowledge of the PPACA is assessed as fair, although better than the general public in 2010. There are several areas where knowledge of physicians regarding the PPACA is poor, and this knowledge deficit is more pronounced within certain subgroups. These knowledge issues should be addressed by individual physicians and medical societies.

Effect of Physician Perspective on Allocation of Medicare Resources for Patients with Advanced Cancer

Objectives:

1) Assess how physician perspective affects Medicare resource allocation for advanced cancer patients. 2) Compare how physician allocations differ from advanced cancer patients and their caregivers.

Methods:

Otolaryngology–head and neck surgery (OHNS) physicians nationwide used a validated tool to create a Medicare plan for advanced cancer patients. Participants took the perspective of an advanced cancer patient and made resource allocations between 15 benefit categories (round 2, November/December 2012). Results were compared with data from a prior assessment made from a physician’s perspective (round 1, February/March 2012) and with data from an ongoing study with cancer patients and caregivers.

Results:

Seven hundred and sixty-seven physicians completed round 1, and 237 completed round 2. Results were compared with 146 cancer patients and 114 caregivers. Round 1 physician responses differed significantly from patients/caregivers in 13 categories ( P < 0.05), while round 2 differed significantly in 11. When comparing physician data, round 2 allocations differed significantly from round 1 in 7 categories. When these 7 categories were compared with patient/caregiver data, round 2 allocations in the Emotional Care, Drug Coverage, and Nursing Facility categories were not significantly different from patient/caregiver allocations. In 4 categories, Cosmetic Care, Dental, Home Care, and Primary Care, round 1 allocations were more similar to patient/caregiver allocations, although all but Home Care were still significantly different.

Conclusions:

OHNS physician perspectives on end-of-life care differ significantly from cancer patient/caregiver perspectives even when physicians take a patient’s perspective when allocating resources. These findings demonstrate the challenges inherent in end-of-life discussions between physicians and patients.

Physician allocation of Medicare resources for patients with advanced cancer

BACKGROUND

Little is known about what patients and physicians value in end-of-life care, or how these groups would craft a health plan for those with advanced cancer.

OBJECTIVE

The study objective was to assess how otolaryngology, head and neck surgery (OHNS) physicians would structure a Medicare benefit plan for patients with advanced cancer, and to compare this with cancer patient and cancer patient caregiver preferences.

DESIGN

OHNS physicians used an online version of a validated tool for assessing preferences for health plans in the setting of limited resources. These data were compared to cancer patient and caregiver preferences.

SETTING AND PARTICIPANTS

OHNS physicians nationwide were assessed with comparison to similar data obtained in a separate study of cancer patients and their caregivers treated at Duke University Medical Center.

RESULTS

Otolaryngology physicians (n=767) completed the online assessment and this was compared with data from 146 patients and 114 caregivers. OHNS physician allocations differed significantly in 14 of the 15 benefit categories when compared with patients and caregivers. Physicians elected more coverage in the Advice, Emotional Care, Palliative Care, and Treatment for Cancer benefit categories. Patients and their caregivers elected more coverage in the Cash, Complementary Care, Cosmetic Care, Dental and Vision, Drug Coverage, Home Improvement, House Calls, Nursing Facility, Other Medical Care, and Primary Care benefit categories.

CONCLUSIONS

Otolaryngology physicians have significantly different values in end-of-life care than cancer patients and their caregivers. This information is important for efficient allocation of scarce Medicare resources and for effective end-of-life discussions, both of which are key for developing appropriate health policy.