Molecular Evidence for Olfactory Neuroblastoma as a Tumor of Malignant Globose Basal Cells.

Olfactory neuroblastoma (ONB, esthesioneuroblastoma) is a sinonasal cancer with an underdeveloped diagnostic toolkit, and is the subject of many incidents of tumor misclassification throughout the literature. Despite its name, connections between the cancer and normal cells of the olfactory epithelium have not been systematically explored and markers of olfactory epithelial cell types are not deployed in clinical practice. Here, we utilize an integrated human-mouse single-cell atlas of the nasal mucosa, including the olfactory epithelium, to identify transcriptomic programs that link ONB to a specific population of stem/progenitor cells known as olfactory epithelial globose basal cells (GBCs). Expression of a GBC transcription factor NEUROD1 distinguishes both low- and high-grade ONB from sinonasal undifferentiated carcinoma, a potential histologic mimic with a distinctly unfavorable prognosis. Furthermore, we identify a reproducible subpopulation of highly proliferative ONB cells expressing the GBC stemness marker EZH2, suggesting that EZH2 inhibition may play a role in the targeted treatment of ONB. Finally, we study the cellular states comprising ONB parenchyma using single-cell transcriptomics and identify evidence of a conserved GBC transcriptional regulatory circuit that governs divergent neuronal-versus-sustentacular differentiation. These results link ONB to a specific cell type for the first time and identify conserved developmental pathways within ONB that inform diagnostic, prognostic, and mechanistic investigation.

Fasting plasma glucose, diagnosis of gestational diabetes and the risk of large for gestational age: a regression discontinuity analysis of routine data.

OBJECTIVE: To estimate the causal effects of fasting plasma glucose (FPG) and diagnosis of gestational diabetes (GDM) on birthweight and the risks of large for gestational age (LGA). DESIGN: Regression discontinuity analysis of routine data. SETTING: Two district general hospitals in West Yorkshire, UK. POPULATION: A cohort of 7062 women with singleton pregnancies who were screened for GDM and gave birth to a baby at ≥24 weeks of gestation in 2017-2019, inclusive. METHODS: The causal effects of FPG and GDM diagnosis were estimated using the two-stage least-squares approach, around the diagnostic threshold of FPG ≥ 5.6 mmol/l recommended by the UK's National Institute for Health and Care Excellent (NICE), controlling for ethnicity, maternal age, parity, height and weight. MAIN OUTCOME MEASURES: Birthweight (standardised for sex and gestational age) and large for gestational age (standardised as birthweight above the 90th centile). RESULTS: For each 1 mmol/l increase in FPG the observed birthweight increased by Z-score = 0.48 standard deviations (95% CI 0.39 to 0.57) and the odds of LGA increased by OR = 2.61 (95% CI 1.86 to 3.66). Conversely, GDM diagnosis reduced the observed birthweight by Z = -0.61 (95% CI -0.94 to -0.29) and lowered the odds of LGA by OR = 0.33 (95% CI 0.15 to 0.74). Similar, but less certain, patterns were observed for caesarean section, shoulder dystocia and perinatal death. CONCLUSIONS: The relationship between FPG and LGA is potent but is dramatically reduced by GDM diagnosis (and all the consequences thereof). Women with mild hyperglycaemia (with an FPG of 5.1-5.5 mmol/l) who fall below the current NICE threshold for GDM diagnosis have the highest risks of adverse outcomes, suggesting a need to reconsider their current care. TWEETABLE ABSTRACT: Regression discontinuity analysis shows that untreated mild hyperglycaemia increases the odds of large for gestational age, but that a diagnosis of gestational #diabetes lowers the odds by three times.

Performance characteristics of two real-time TaqMan polymerase chain reaction assays for the detection of WSSV in clinically diseased and apparently healthy prawns.

This study aimed to generate data on performance characteristics for 2 real-time TaqMan PCR assays (CSIRO and WOAH WSSV qPCRs) for the purposes of (1) detection of white spot syndrome virus (WSSV) in clinically diseased prawns and (2) detection of WSSV in apparently healthy prawns. Analytical sensitivity of both assays was 2 to 20 genome copies per reaction, and analytical specificity was 100% after testing nucleic acid from 9 heterologous prawn pathogens and 4 prawn species. Results obtained after testing more than 20 000 samples in up to 559 runs with the CSIRO WSSV qPCR and up to 293 runs with the WOAH WSSV qPCR demonstrated satisfactory repeatability for both assays. Both assays demonstrated median diagnostic sensitivity (DSe) 100% (95% CI: 94.9-100%) when testing clinically diseased prawns. When 1591 test results from apparently healthy prawns were analysed by Bayesian latent class analysis, median DSe and diagnostic specificity (DSp) were 82.9% (95% probability interval [PI]: 75.0-90.2%) and 99.7% (95% PI: 98.6-99.99%) for the CSIRO WSSV qPCR and 76.8% (95% PI: 68.9-84.9%) and 99.7% (95% PI: 98.7-99.99%) for the WOAH WSSV qPCR. When both assays were interpreted in parallel, median DSe increased to 98.3 (95% PI: 91.6-99.99%), and median DSp decreased slightly to 99.4% (95% PI: 97.9-99.99%). Routine testing of quantified positive controls by laboratories in the Australian laboratory network demonstrated satisfactory reproducibility of the CSIRO WSSV qPCR assay. Both assays demonstrated comparable performance characteristics, and the results contribute to the validation data required in the WOAH validation pathway for the purposes of detection of WSSV in clinically diseased and apparently healthy prawns.

Associations between social and behavioural factors and the risk of late stillbirth - findings from the Midland and North of England Stillbirth case-control study.

OBJECTIVE: To investigate behavioural and social characteristics of women who experienced a late stillbirth compared with women with ongoing live pregnancies at similar gestation. DESIGN: Case-control study. SETTING: 41 maternity units in the UK. POPULATION: Women who had a stillbirth ≥28 weeks' gestation (n = 287) and women with an ongoing pregnancy at the time of interview (n = 714). METHODS: Data were collected using an interviewer-administered questionnaire which included questions regarding women's behaviours (e.g. alcohol intake and household smoke exposure) and social characteristics (e.g. ethnicity, employment, housing). Stress was measured by the 10-item Perceived Stress Scale. MAIN OUTCOME MEASURE: Late stillbirth. RESULTS: Multivariable analysis adjusting for co-existing social and behavioural factors showed women living in the most deprived quintile had an increased risk of stillbirth compared with the least deprived quintile (adjusted odds ratio [aOR] 3.16; 95% CI 1.47-6.77). There was an increased risk of late stillbirth associated with unemployment (aOR 2.32; 95% CI 1.00-5.38) and women who declined to answer the question about domestic abuse (aOR 4.12; 95% CI 2.49-6.81). A greater number of antenatal visits than recommended was associated with a reduction in stillbirth (aOR 0.26; 95% CI 0.16-0.42). CONCLUSIONS: This study demonstrates associations between late stillbirth and socio-economic deprivation, perceived stress and domestic abuse, highlighting the need for strategies to prevent stillbirth to extend beyond maternity care. Enhanced antenatal care may be able to mitigate some of the increased risk of stillbirth. TWEETABLE ABSTRACT: Deprivation, unemployment, social stress & declining to answer about domestic abuse increase risk of #stillbirth after 28 weeks' gestation.

Diagnosing odontogenic sinusitis of endodontic origin: A multidisciplinary literature review.

PURPOSE: Endodontic disease is one of the most common causes of bacterial odontogenic sinusitis (ODS). Diagnosing ODS of endodontic origin involves otolaryngologists confirming sinusitis, and dental specialists confirming endodontic sources. The purpose of this study was to conduct a multidisciplinary literature review to highlight clinical and microbiological features of ODS, and the most optimal diagnostic modalities to confirm endodontic disease. METHODS: An extensive review of both medical and dental literature was performed by rhinologists, endodontists, and an infectious disease specialist. Frequencies of various clinical and microbiological features from ODS studies were collected, and averages were calculated. Different endodontic testing and imaging modalities were also evaluated on their abilities to confirm endodontic disease. RESULTS: ODS patients most often present with unilateral sinonasal symptoms for over 3 months, purulence on nasal endoscopy, and overt dental pathology on computed tomography (CT). Subjective foul smell, and maxillary sinus cultures demonstrating anaerobes and α-streptococci (viridans group) may be more specific to ODS. For endodontic evaluations, cold pulp testing and cone-beam CT imaging are most optimal for confirming pulpal and periapical disease. CONCLUSION: Diagnosing ODS requires collaboration between otolaryngologists and dental specialists. Clinicians should suspect ODS when patients present with unilateral sinonasal symptoms, especially foul smell. Patients will generally have purulent drainage on nasal endoscopy, and both sinus opacification and overt dental pathology on CT. However, some patients will have subtle or absent dental pathology on CT. For suspected endodontic disease, endodontists should be consulted for at least cold pulp testing, and ideally cone-beam CT.

Chronic rhinosinusitis disease burden is associated with asthma-related emergency department usage.

PURPOSE: Chronic rhinosinusitis (CRS) disease burden is associated with pulmonary status in asthmatic CRS patients. Asthma-related emergency department (ED) usage is a predictor of asthma-related mortality. We sought to determine whether measures of CRS disease burden are associated with asthma-related ED usage. METHODS: We prospectively recruited 263 asthmatic CRS patients for this cross-sectional study. CRS burden was measured using the 22-item Sinonasal Outcome Test (SNOT-22), and patient-reported CRS-related antibiotic usage and CRS-related oral corticosteroids usage over the preceding year. Asthma-related ED visits over the prior year were also assessed. RESULTS: Of all participants, 18.6% had at least 1 asthma-related ED visit (mean 0.3 ED visits for the whole cohort). Asthma-related ED usage was associated with SNOT-22 score [adjusted rate ratio (RR) = 1.02, 95% CI 1.01-1.03, p = 0.040] and CRS-related oral corticosteroids usage in the past year (RR = 1.52, 95% CI 1.26-1.83, p < 0.001). From the SNOT-22 score, asthma-related ED usage was only associated with the nasal subdomain score (RR = 1.08, 95% CI 1.03-1.13, p = 0.001). These measures of CRS disease burden could be used with good sensitivity and specificity to detect patients with asthma-related ED usage in the past year, the majority of whom were undertreated for their asthma. CONCLUSIONS: Measures of CRS disease burden are associated with and can be used to detect, patients having asthma-related ED usage. These results further solidify the connection between CRS and asthma disease courses, and also present an opportunity to use CRS disease burden as a tool for identifying-and implementing greater treatment of-patients at highest risk for asthma-related mortality.

Characterising the potential for recall bias in anchor-based MCID calculation of patient-reported outcome measures for chronic rhinosinusitis.

OBJECTIVE: Anchor-based methods to calculate the minimal clinically important difference (MCID) of a patient-reported outcome measure (PROM) may suffer from recall bias. This has never been investigated for otolaryngic PROMs. We sought to identify evidence of recall bias in calculation of MCIDs of PROMs for patients with chronic rhinosinusitis (CRS). DESIGN: Retrospective analysis of data from two previous studies calculating the MCID of the 22-item Sinonasal Outcome Test (SNOT-22) and 5-dimensonal EuroQol questionnaire (EQ-5D) in CRS patients. SETTING: Tertiary rhinology clinic. PARTICIPANTS: Adults with CRS. MAIN OUTCOME MEASURES: SNOT-22 score, and EQ-5D visual analog scale scores (EQ-5D VAS) and health utility values (EQ-5D HUV) before and after medical treatment for CRS. After treatment, participants were asked to rate the change in sinonasal symptoms and general health (the anchor question) as "Much worse," "A little worse," "About the same," "A little better" or "Much better." Participants' responses to the anchor question were checked for association with post-treatment and pre-treatment scores using ordinal regression. RESULTS: On univariate association, post-treatment SNOT-22 and EQ-5D scores were associated with respective participants' anchor question responses (P < .001 in all cases). Only pre-treatment SNOT-22 score was associated with anchor question responses (P = .017) on univariate association, in contrast to pre-treatment EQ-5D scores. Pre-treatment EQ-5D scores only associated with anchor question responses when controlling for post-treatment scores. CONCLUSION: The anchor-based MCIDs of the SNOT-22, which reflects disease-specific QOL, and the EQ-5D, which reflects general health-related QOL, appear to be largely free of recall bias.

Gestational diabetes and the risk of late stillbirth: a case-control study from England, UK.

OBJECTIVE: To explore the separate effects of being 'at risk' of gestational diabetes mellitus (GDM) and screening for GDM, and of raised fasting plasma glucose (FPG) and clinical diagnosis of GDM, on the risk of late stillbirth. DESIGN: Prospective case-control study. SETTING: Forty-one maternity units in the UK. POPULATION: Women who had a stillbirth ≥28 weeks of gestation (n = 291) and women with an ongoing pregnancy at the time of interview (n = 733). METHODS: Causal mediation analysis explored the joint effects of (i) 'at risk' of GDM and screening for GDM and (ii) raised FPG (≥5.6 mmol/l) and clinical diagnosis of GDM on the risks of late stillbirth. Adjusted odds ratios (aOR) were estimated by logistic regression adjusted for confounders identified by directed acyclic graphs. MAIN OUTCOME MEASURES: Screening for GDM and FPG levels RESULTS: Women 'at risk' of GDM, but not screened, experienced 44% greater risk of late stillbirth than those not 'at risk' (aOR 1.44, 95% CI 1.01-2.06). Women 'at risk' of GDM who were screened experienced no such increase (aOR 0.98, 95% CI 0.70-1.36). Women with raised FPG not diagnosed with GDM experienced four-fold greater risk of late stillbirth than women with normal FPG (aOR 4.22, 95% CI 1.04-17.02). Women with raised FPG who were diagnosed with GDM experienced no such increase (aOR 1.10, 95% CI 0.31-3.91). CONCLUSIONS: Optimal screening and diagnosis of GDM mitigate the higher risks of late stillbirth in women 'at risk' of GDM and/or with raised FPG. Failure to diagnose GDM leaves women with raised FPG exposed to avoidable risk of late stillbirth. TWEETABLE ABSTRACT: Risk of #stillbirth in gestational diabetes is mitigated by effective screening and diagnosis.

Seasonal variations in chronic rhinosinusitis symptom burden may be explained by changes in mood.

PURPOSE: There are many year-round modifiers of chronic rhinosinusitis (CRS). However, it is unknown whether there are seasonal variations in the sinonasal symptom burden of CRS. METHODS: This was a retrospective cross-sectional study of sinonasal symptom burden measured using the 22-item Sinonasal Outcome Test (SNOT-22) and its four associated nasal, sleep, ear/facial discomfort and emotional subdomains in 1028 individuals with CRS. The season (winter, spring, summer or fall) when the SNOT-22 was completed was recorded. Regressions, controlling for clinical and demographic characteristics, were performed to seek association between season of the year and SNOT-22 total and subdomain scores. RESULTS: The mean SNOT-22 scores were 37.4 for those individuals completing their SNOT-22 in the fall, 40.5 in the winter, 37.4 in the spring and 36.0 in the summer. There was a statistically significant association between higher SNOT-22 scores and completing the SNOT-22 in the wintertime (adjusted ß = 4.08, 95% CI 0.74-7.42, p = 0.017). When seeking association between season and SNOT-22 subdomain scores, wintertime was associated only with higher emotional (adjusted ß = 0.48, 95% CI 0.14-0.81, p = 0.006) and sleep (adjusted ß = 2.23, 95% CI 0.54-3.91, p = 0.010) subdomain scores. Examining individual SNOT-22 items, these associations were due to more symptoms related to depressed mood ("sad") and psychomotor retardation. CONCLUSION: There are seasonal variations in symptom burden of CRS patients, independent of aeroallergen hypersensitivity, with the greatest increase in baseline CRS symptomatology during the winter. This finding was most strongly associated with increased emotional symptomatology and depressed mood.

Longitudinal improvement in nasal obstruction symptoms of chronic rhinosinusitis directly associates with improvement in mood.

PURPOSE: The effects of nasal obstruction in patients with chronic rhinosinusitis (CRS) are associated with depressed mood. We sought to validate this finding by determining whether improvement in nasal obstruction would translate to improvement in depressed mood. METHODS: This was a prospective observational study of 150 patients undergoing medical management for CRS. Data were collected at two timepoints: enrollment and a subsequent follow-up visit 3-12 months later. Impact of nasal obstruction was measured using the Nasal Obstruction Symptom Evaluation (NOSE) instrument and depressed mood was measured using the 2-item Patient Health Questionnaire (PHQ-2). Sinonasal symptoms associated with CRS were also measured using the 22-item Sinonasal Outcome Test (SNOT-22). Clinical and demographic characteristics were collected. The relationship between changes in PHQ-2 and NOSE scores was determined with correlation and linear regression. RESULTS: Change in PHQ-2 score was significantly correlated with change in NOSE score (ρ = 0.30, p < 0.001). After controlling for covariates, change in PHQ-2 score was associated with change in NOSE score (adjusted linear regression coefficient [ß] = 0.014, 95% CI 0.006-0.022, p = 0.001). We confirmed these relationships, finding that change in PHQ-2 was associated (adjusted ß = 0.037, 95% CI 0.013-0.061, p = 0.003) with change in the nasal subdomain score of the SNOT-22. Improvement in NOSE score by greater than 22 points was predictive of improvement in PHQ-2 score with sensitivity 54.5% and 83.8% specificity (p < 0.001). CONCLUSION: These results provide evidence that improvements in nasal manifestations/symptoms of CRS translate to significant improvements in mood.

Sex Differences in Faculty Rank Among Academic Surgeons in the United States in 2014.

OBJECTIVE: The aim of this study was to evaluate sex differences in full professorship among a comprehensive, contemporary cohort of US academic surgeons. SUMMARY OF BACKGROUND DATA: Previous work demonstrates that women are less likely than men to be full professors in academic medicine, and in certain surgical subspecialties. Whether sex differences in academic rank exist across all surgical fields, and after adjustment for confounders, is not known. METHODS: A comprehensive list of surgeons with faculty appointments at US medical schools in 2014 was obtained from Association of American Medical Colleges (AAMC) faculty roster and linked to a comprehensive physician database from Doximity, an online physician networking website, which contained the following data for all physicians: sex, age, years since residency, publication number (total and first/last author), clinical trials participation, National Institutes of Health grants, and surgical subspecialty. A 20% sample of 2013 Medicare payments for care was added to this dataset. Multivariable regression models were used to estimate sex differences in full professorship, adjusting for these variables and medical school-specific fixed effects. RESULTS: Among 11,549 surgeon faculty at US medical schools in 2014, 1692 (14.7%) were women. Women comprised 19.4% of assistant professors (1072/5538), 13.8% of associate professors (404/2931), and 7.0% of full professors (216/3080). After multivariable analysis, women were less likely to be full professors than men (adjusted odds ratio: 0.76, 95% confidence interval: 0.6-0.9). CONCLUSION: Among surgical faculty at US medical schools in 2014, women were less likely than men to be full professors after adjustment for multiple factors known to impact faculty rank.

Changes in chronic rhinosinusitis symptoms differentially associate with improvement in general health-related quality of life.

BACKGROUND: Previous work has shown that the symptoms of chronic rhinosinusitis (CRS) differentially associate with decreased general health-related quality of life (QOL). OBJECTIVE: We sought to determine whether longitudinal changes in different types of CRS symptomatology lead to correspondingly different magnitude changes in general health-related QOL. METHODS: Prospective observational study of 145 patients undergoing medical management for CRS. Chronic rhinosinusitis symptom severity was measured using the 22-item Sinonasal Outcome Test (SNOT-22) and associated nasal, sleep, ear/facial discomfort, and emotional subdomains of the SNOT-22. General health-related QOL was measured using the 5-dimensional EuroQoL questionnaire's visual analog scale (EQ-5D VAS). These data were collected at 2 time points: at enrollment and at a subsequent follow-up visit within the next 2 to 6 months. Associations were sought between the changes in SNOT-22 and EQ-5D VAS. RESULTS: The change in SNOT-22 was associated with change in EQ-5D VAS (adjusted linear regression coefficient [ß] = -0.37, 95%CI: -0.51 to -0.24, P < .001). The change in EQ-5D VAS was only associated with changes in the sleep (adjusted ß = -0.42, 95% confidence interval [95%CI]: -0.81 to -0.04, P = .034) and ear/facial discomfort (adjusted ß = -1.00, 95%CI: -1.89 to -0.10, P = .031) subdomains but not nasal (adjusted ß = -0.12, 95%CI: -0.52 to 0.28, P = .564) or emotional (adjusted ß = -0.17, 95%CI: -1.83 to 1.49, P = .840) subdomains. CONCLUSION: Changes in the severity of sleep and ear/facial discomfort symptoms associate most greatly with the change in general health-related QOL that CRS patients experience during routine medical management. Reduction of these extranasal symptoms of CRS may therefore lead to the greatest improvement in general health-related QOL.

Association between maternal sleep practices and late stillbirth - findings from a stillbirth case-control study.

OBJECTIVE: To report maternal sleep practices in women who experienced a stillbirth compared with controls with ongoing live pregnancies at similar gestation. DESIGN: Prospective case-control study. SETTING: Forty-one maternity units in the United Kingdom. POPULATION: Women who had a stillbirth after ≥ 28 weeks' gestation (n = 291) and women with an ongoing pregnancy at the time of interview (n = 733). METHODS: Data were collected using an interviewer-administered questionnaire that included questions on maternal sleep practices before pregnancy, in the four weeks prior to, and on the night before the interview/stillbirth. MAIN OUTCOME MEASURES: Maternal sleep practices during pregnancy. RESULTS: In multivariable analysis, supine going-to-sleep position the night before stillbirth had a 2.3-fold increased risk of late stillbirth [adjusted Odds Ratio (aOR) 2.31, 95% CI 1.04-5.11] compared with the left side. In addition, women who had a stillbirth were more likely to report sleep duration less than 5.5 hours on the night before stillbirth (aOR 1.83, 95% CI 1.24-2.68), getting up to the toilet once or less (aOR 2.81, 95% CI 1.85-4.26), and a daytime nap every day (aOR 2.22, 95% CI 1.26-3.94). No interaction was detected between supine going-to-sleep position and a small-for-gestational-age infant, maternal body mass index, or gestational age. The population-attributable risk for supine going-to-sleep position was 3.7% (95% CI 0.5-9.2). CONCLUSIONS: This study confirms that supine going-to-sleep position is associated with late stillbirth. Further work is required to determine whether intervention(s) can decrease the frequency of supine going-to-sleep position and the incidence of late stillbirth. TWEETABLE ABSTRACT: Supine going-to-sleep position is associated with 2.3× increased risk of stillbirth after 28 weeks' gestation. PLAIN LANGUAGE SUMMARY: Stillbirth, the death of a baby before birth, is a tragedy for mothers and families. One approach to reduce stillbirths is to identify factors that are associated with stillbirth. There are few risk factors for stillbirth that can be easily changed, but this study is looking at identifying how mothers may be able to reduce their risk. In this study, we interviewed 291 women who had a stillbirth and 733 women who had a live-born baby from 41 maternity units throughout the UK. The mothers who had a stillbirth were interviewed as soon as practical after their baby died. Mothers who had a live birth were interviewed during their pregnancies at the same times in pregnancy as when the stillbirths occurred. We did not interview mothers who had twins or who had a baby with a major abnormality. Mothers who went to sleep on their back had at least twice the risk of stillbirth compared with mothers who went to sleep on their left-hand side. This study suggests that 3.7% of stillbirths after 28 weeks of pregnancy were linked with going to sleep lying on the back. This study also shows that the link between going-to-sleep position and late stillbirth was not affected by the duration of pregnancy after 28 weeks, the size of the baby, or the mother's weight. Women who got up to the toilet once or more at night had a reduced risk of stillbirth. This is the largest of four similar studies that have all shown the same link between the position in which a mother goes to sleep and stillbirth after 28 weeks of pregnancy. Further studies are needed to see whether women can easily change their sleep position in late pregnancy and whether changing the position a mother goes to sleep in reduces stillbirth.

Impact of odontogenic chronic rhinosinusitis on general health-related quality of life.

Chronic rhinosinusitis (CRS) may arise due to odontogenic etiologies. However, it is unknown whether odontogenic CRS has a differential impact on patients' quality of life (QOL) compared to standard, inflammatory (but non-odontogenic) CRS. The objective of this study was to determine whether there is a difference in the impact of sinonasal symptomatology on general health-related QOL in odontogenic CRS compared to non-odontogenic CRS. This was a retrospective review of 21 odontogenic CRS patients who visited our tertiary care center. The severity of sinonasal symptomatology and CRS-specific QOL detriment was measured using the 22-item Sinonasal Outcomes Test (SNOT-22) and general health-related QOL was measured using the health utility index from the 5-item EuroQol survey (EQ-5D HUV). Compared to non-odontogenic CRS, odontogenic CRS was not associated with a difference in SNOT-22 score [linear regression coefficient (ß) = - 1.57, 95% CI - 12.47 to 9.32, p = 0.777] but was significantly associated with decreased EQ-5D HUV (ß = - 0.10, 95% CI - 0.17 to - 0.03, p = 0.008). We also found that the magnitude of association (ß) between SNOT-22 and EQ5D-HUV was greater for odontogenic CRS patients compared to non-odontogenic CRS patients (p = 0.045). Our findings suggest sinonasal symptoms may have a greater impact on general QOL in odontogenic CRS compared to non-odontogenic CRS. The reason for this remains unknown, but deserves further study.

Minimal clinically important difference for the 22-item Sinonasal Outcome Test in medically managed patients with chronic rhinosinusitis.

OBJECTIVE: To determine the minimal clinically important difference (MCID) of the 22-item Sinonasal Outcome Test (SNOT-22) in individuals undergoing medical management for their chronic rhinosinusitis (CRS). DESIGN: Prospective observational study. SETTING: Academic, tertiary care centre. PARTICIPANTS: A total of 247 adults undergoing medical management for CRS. MAIN OUTCOME MEASURE: At enrolment, participants completed a SNOT-22. At a subsequent follow-up visit, 2-12 months after enrolment, participants also completed a SNOT-22. At follow-up, participants also rated the change in their sinus symptoms and general health as "Much worse," "A little worse," "About the same," "A little better" or "Much better" compared with enrolment; these two questions were used as sinus symptom and general health anchor questions, respectively. The SNOT-22 MCID was calculated using distribution-based, anchor-based and receiver operating characteristic (ROC) curve-based methods. RESULTS: Using the distribution-based method, the SNOT-22 MCID was 11.6. Using the sinus symptom anchor question, the SNOT-22 MCID was 10.5; applying the ROC method to the sinus symptom anchor yielded an MCID of 12.5. In comparison, using the general health anchor question, the SNOT-22 MCID was 8.3; applying the ROC method to the sinus symptom anchor yielded an MCID of 17.5. In all cases, the calculated MCID had a sensitivity of approximately 50-60% and specificity of approximately 80-90%. CONCLUSIONS: Based on our results, we propose a SNOT-22 MCID of 12 in medically managed patients with CRS. The MCID, while specific, was not sensitive for identifying patients with CRS experiencing a noticeable improvement in sinus symptoms or general health.

Depression symptoms and lost productivity in chronic rhinosinusitis.

BACKGROUND: Chronic rhinosinusitis (CRS) is associated with significant losses of patient productivity that cost billions of dollars every year. The causative factors for decreases in productivity in patients with CRS have yet to be determined. OBJECTIVE: To determine which patterns of CRS symptoms drive lost productivity. METHODS: Prospective, cross-sectional cohort study of 107 patients with CRS. Sinonasal symptom severity was measured using the 22-item Sinonasal Outcomes Test, from which sleep, nasal, otologic or facial pain, and emotional function subdomain scores were calculated using principal component analysis. Depression risk was assessed with the 2-item Patient Health Questionnaire (PHQ-2), whereas nasal obstruction was assessed with the Nasal Obstruction Symptom Evaluation (NOSE) instrument. Lost productivity was assessed by asking participants how many days of work and/or school they missed in the last 3 months because of CRS. Associations were sought between lost productivity and CRS symptoms. RESULTS: A total of 107 patients were recruited. Patients missed a mean (SD) of 3.1 (12.9) days of work or school because of CRS. Lost productivity was most strongly associated with the emotional function subdomain (ß = 7.48; 95% confidence interval [CI], 5.71-9.25; P < .001). Reinforcing this finding, lost productivity was associated with PHQ-2 score (ß = 4.72; 95% CI, 2.62-6.83; P < .001). Lost productivity was less strongly associated with the nasal symptom subdomain score (ß = 2.65; 95% CI, 0.77-4.52; P = .007), and there was no association between lost productivity and NOSE score (ß = 0.01; 95% CI, -0.12 to 0.13; P = .91). CONCLUSION: Symptoms associated with depression are most strongly associated with missed days of work or school because of CRS. Further treatment focusing on depression-associated symptoms in patients with CRS may reduce losses in productivity.

Association of severity of chronic rhinosinusitis with degree of comorbid asthma control.

BACKGROUND: Comorbid chronic rhinosinusitis (CRS) is associated with worse asthma control. However, no study has investigated whether CRS severity affects the degree of asthma control. OBJECTIVE: To determine the effect size of an association between CRS severity and asthma control. METHODS: A pilot study with a prospective cross-sectional design. Adult patients with CRS and asthma were recruited. CRS severity was measured using the 22-item Sinonasal Outcomes Test (SNOT-22), and asthma control was measured using the Asthma Control Test (ACT). Poor asthma control was defined as an ACT score of 19 or less. In addition to age and sex, we also assessed the participants' history of smoking, aeroallergen hypersensitivity, the presence of polyps, and current use of a corticosteroid-containing asthma inhaler. The association between SNOT-22 and ACT was assessed using univariate and multivariable linear regression. RESULTS: A total of 40 patients were recruited. The mean (SD) SNOT-22 score was 43.6 (23.6), and the mean (SD) ACT score was 20.6 (4.8). We found that the SNOT-22 score was associated with the ACT score (adjusted ß = -0.07; 95% confidence interval [CI], -0.13 to -0.02; P = .02) and with having poor asthma control (adjusted odds ratio, 1.06; 95% CI, 1.01-1.11; P = .02). A SNOT-22 cutoff score of 45 or higher had the greatest association with uncontrolled asthma (adjusted odds ratio, 14.96; 95% CI, 1.93-115.89; P = .01). CONCLUSION: CRS severity is negatively associated with asthma control in patients with asthma and CRS. On the basis of this pilot study, further study is warranted to elucidate the effect of CRS severity on asthma control and to determine whether reduction in CRS severity translates to improvement in asthma control.

Subspecialty emergency room as alternative model for otolaryngologic care: implications for emergency health care delivery.

PURPOSE: A dedicated otolaryngology emergency room (ER) represents a specialized surgical evaluation and treatment setting that may be an alternative triage pathway for acute otolaryngologic complaints. We aim to characterize practice patterns in this setting and to provide insight into the epidemiology of all-comer, urgent otolaryngologic complaints in the United States. METHODS AND METHODS: Electronic medical records were reviewed for all patients who registered for otolaryngologic care and received a diagnosis in the Massachusetts Eye and Ear Infirmary ER between January 2011 and September 2013. Descriptive analysis was performed to characterize utilization and diagnostic patterns. Predictors of inpatient admission were identified using multivariable regression. Geocoding analysis was performed to characterize catchment area. RESULTS: A total of 12,234 patient visits were evaluated with a mean age of 44.7. Auditory and vestibular problems constituted the most frequent diagnoses (50.0%). The majority of patients were discharged home (92.3%). Forty-three percent of patients underwent a procedure in the ER; the most common procedure was diagnostic nasolaryngoscopy (52%). Predictors of inpatient admission were post-operative complaint (odds ratio [OR] 7.3, P<0.0001), arrival overnight (OR 3.3, P<0.0001), and laryngeal complaint (OR 2.4, P<0.0001). Patients traveled farther for evaluation of hearing loss (11 miles) and less for common diagnoses including impacted cerumen (7.1 miles) (P<0.0001). CONCLUSION: In this report, we investigate practice patterns of a dedicated otolaryngology emergency room to explore an alternative to standard acute otolaryngologic health care delivery mechanisms. We identify key predictors of inpatient admission. This study has implications for emergency health care delivery models.

Trends of Odontogenic Sinusitis Incidence During the COVID-19 Pandemic.

OBJECTIVES: The COVID-19 pandemic affected the epidemiology of several diseases. This study aims to compare the incidence of surgically treated odontogenic sinusitis (ODS) before and during the COVID-19 pandemic and identify unique features. METHODS: A retrospective chart review of patients who underwent at least maxillary antrostomy at a tertiary referral center was performed. The patients were divided into two cohorts: "pre-COVID" (March 2018 to February 2020) and "COVID" (March 2020 to February 2022). Data on demographics, comorbidities, and treatment interventions were collected and analyzed. RESULTS: Of the 734 patients who underwent maxillary antrostomy, 370 (50.4%) were operated on during the COVID period, with a mean age of 53.1 ± 15.7 years. ODS was found as the etiology of 22 (6%) and 45 (12.2%) of the pre-COVID and COVID cases, respectively (p = 0.006). Although no difference was found in the incidence of diabetes (p = 0.9) or obesity (p = 0.7) between groups, a trend toward higher incidence of immunosuppression was found in the pre-COVID patients (18.2% vs. 0%, p = 0.06). A higher incidence of sphenoid sinus involvement (31.8% vs. 8.9%, p < 0.05) was identified in the pre-COVID group; however, no differences in ethmoid (86.4% vs. 86.7%, p = 0.999) or frontal sinus involvement (54.5% vs. 37.8%, p = 0.3) were found between the groups. CONCLUSION: There was an increase in the incidence of ODS during the first 2 years of the COVID-19 pandemic compared to the 2 years prior. Similar clinical characteristics were found in both groups. Future studies focusing on specific etiologies to explain ODS preponderance may help determine optimal treatment and prevention strategies. LEVEL OF EVIDENCE: 3 Laryngoscope, 134:1597-1602, 2024.

Considering the Costs: Resin 3D Printing for a Temporal Bone Dissection Course.

Significant costs associated with obtaining cadaveric temporal bones (TBs) have led many to seek more cost-effective alternatives for TB surgical simulation. Multiple studies support the face validity of resin 3-dimensional (3D)-printed TBs as high-fidelity, useful alternatives for simulating TB dissection. However, a paucity of literature describes the cost or time associated with in-house manufacturing of resin TBs at scale. This paper reviews the hardware and manufacturing costs, and time required for in-house development of resin TB models for an annual dissection course. An open-source library of TB models was queried for a candidate model which was edited for optimal printing on a recently developed resin 3D printer. In the described workflow, we were able to 3D-print 60 TB models at $6.40 each, for a total material cost of $384.10, less than the price of a single cadaveric TB specimen (∼$400-$700).