Daniel M. Beswick's research while affiliated with University of California, Los Angeles and other places

Purpose Sinonasal malignancies (SNMs) adversely impact patients’ quality of life (QOL) and are frequently identified at an advanced stage. Because these tumors are rare, there are few studies that examine the specific QOL areas that are impacted. This knowledge would help improve the care of these patients. Methods In this prospective, multi‐institutional study, 273 patients with SNMs who underwent definitive treatment with curative intent were evaluated. We used the University of Washington Quality of Life (UWQOL) instrument over 5 years from diagnosis to identify demographic, treatment, and disease‐related factors that influence each of the 12 UWQOL subdomains from baseline to 5 ‐years post‐treatment. Results Multivariate models found endoscopic resection predicted improved pain (vs. nonsurgical treatment CI 2.4, 19.4, p = 0.01) and appearance versus open (CI 27.0, 35.0, p < 0.001) or combined (CI 10.4, 17.1, p < 0.001). Pterygopalatine fossa involvement predicted worse swallow (CI −10.8, −2.4, p = 0.01) and pain (CI −17.0, −4.0, p < 0.001). Neck dissection predicted worse swallow (CI −14.8, −2.8, p < 0.001), taste (CI −31.7, −1.5, p = 0.02), and salivary symptoms (CI −28.4, −8.6, p < 0.001). Maxillary involvement predicted worse chewing (CI 9.8, 33.2; p < 0.001) and speech (CI −21.8, −5.4, p < 0.001) relative to other sites. Advanced T stage predicted worse anxiety (CI −13.0, −2.0, p = 0.03). Conclusions Surgical approach, management of cervical disease, tumor extent, and site of involvement impacted variable UWQOL symptom areas. Endoscopic resection predicted better pain, appearance, and chewing compared with open. These results may aid in counseling patients regarding potential QOL expectations in their SNM treatment and recovery course.

Objectives The 22‐question SinoNasal Outcome Test (SNOT‐22) assesses chronic rhinosinusitis (CRS) severity. We aimed to identify predictors of SNOT‐22 score improvement following highly effective modulator therapy (HEMT) initiation and to corroborate the SNOT‐22 minimal clinically important difference (MCID) in adults with cystic fibrosis (CF). Methods Prospective observational data was pooled from four studies across 10 US centers investigating people with CF (PwCF) and CRS. Three studies evaluated HEMT's impact on CRS. For participants enrolled prior to HEMT initiation, SNOT‐22 scores were obtained at baseline and after 3–6 months of HEMT. Multivariate regression identified predictors of improvement. Cronbach's alpha and four distribution‐based methods were used to assess internal consistency and calculate the MCID of the SNOT‐22. Results A total of 184 PwCF participated with mean baseline SNOT‐22 scores ranging from 18.1 to 56.7. Cronbach's alpha was ≥0.90 across sites. Participants at sites with pre‐ and post‐HEMT data reported improvement in SNOT‐22 scores after initiating HEMT (all p < 0.05). Worse baseline SNOT‐22 score (odds ratio (OR): 1.05, p < 0.001, 95% CI: 1.02–1.08), F508del homozygosity (OR: 4.30, p = 0.040, 95% CI: 1.14–18.99), and absence of prior modulator therapy (OR: 4.99, p = 0.017, 95% CI: 1.39–20.11) were associated with greater SNOT‐22 improvement. The mean MCID calculated via distribution‐based methods was 8.5. Conclusion Worse baseline sinonasal symptoms, F508del homozygosity, and absence of prior modulator therapy predicted greater improvement after HEMT initiation. The mean MCID for SNOT‐22 in PwCF is 8.5 points, similar to non‐CF individuals with CRS, and provides a threshold specifically for PwCF. The SNOT‐22 has strong internal consistency in PwCF. Level of Evidence 3 Laryngoscope , 2024

Background Environmental exposures have been postulated to play an important role in the pathophysiology of chronic rhinosinusitis (CRS). Particulate matter (PM) is one of the most widely studied ambient air pollutants, but its peri-operative impact on CRS is unknown. Objective To determine the effect of acute, peri-operative PM exposure on outcomes after endoscopic sinus surgery (ESS). Methods Participants with CRS who self-selected ESS were prospectively enrolled. The 22-item SinoNasal Outcome Test (SNOT-22) and Medical Outcomes Study Questionnaire Short-Form 6-D (SF-6D) health utility values scores were recorded. Using residence zip codes, a secondary analysis of patient exposure to PM <2.5 μm and <10 μm (PM2.5 and PM10, respectively) was performed for the month of surgery utilizing data from Environmental Protection Agency air quality monitors. Spearman's correlation coefficients (ρ), 95% confidence intervals (CIs), and effect estimates (β) were used to determine the magnitudes of association. Simple, multivariate regression analysis was also completed. Results One hundred and seven patients from four geographically unique institutions across the US were enrolled with a follow-up of 6 months. Patients with higher peri-operative PM2.5 exposure had less improvement in their SNOT-22 scores after ESS compared to those with less exposure using both univariate analysis (ρ = 0.26, 95% CI: 0.08, 0.43; P = .01) and after covariate adjustment with multivariate analysis ( B = 1.06, 95% CI: 0.001, 2.14, P = .05). Similar associations were not found with SF-6D outcomes or with PM10 as an exposure of interest. No significant correlations were found between peri-operative PM levels and Lund-Kennedy endoscopy scores post-operatively. Conclusion Preliminary data from this pilot study reveal that PM exposure at the time of ESS may negatively associate with post-operative improvement in sinonasal quality-of-life. Larger, population-based studies with more standardized PM exposure windows are needed to confirm the clinical significance of the present findings.

Background Patients with sinonasal malignancy (SNM) present with significant sinonasal quality of life (QOL) impairment. Global sinonasal QOL as measured by the 22‐item Sinonasal Outcomes Test (SNOT‐22) has been shown to improve with treatment. This study aims to characterize SNOT‐22 subdomain outcomes in SNM. Methods Patients diagnosed with SNM were prospectively enrolled in a multi‐center patient registry. SNOT‐22 scores were collected at the time of diagnosis and through the post‐treatment period for up to 5 years. Multivariable regression analysis was used to identify drivers of variation in SNOT‐22 subdomains. Results Note that 234 patients were reviewed, with a mean follow‐up of 22 months (3 months–64 months). Rhinologic, psychological, and sleep subdomains significantly improved versus baseline (all p < 0.05). Subanalysis of 40 patients with follow‐up at all timepoints showed statistically significant improvement in rhinologic, extra‐nasal, psychological, and sleep subdomains, with minimal clinically important difference met between 2 and 5 years in sleep and psychological subdomains. Adjuvant chemoradiation was associated with worse outcomes in rhinologic (adjusted odds ratio (5.22 [1.69–8.66])), extra‐nasal (2.21 [0.22–4.17]) and ear/facial (5.53 [2.10–8.91]) subdomains. Pterygopalatine fossa involvement was associated with worse outcomes in rhinologic (3.22 [0.54–5.93]) and ear/facial (2.97 [0.32–5.65]) subdomains. Positive margins (5.74 [2.17–9.29]) and surgical approach—combined versus endoscopic (3.41 [0.78–6.05])—were associated with worse psychological outcomes. Adjuvant radiation (2.28 [0.18–4.40]) was associated with worse sleep outcomes. Conclusions Sinonasal QOL improvements associated with treatment of SNM are driven by rhinologic, extra‐nasal, psychological, and sleep subdomains.

Objective Socioeconomic status (SES) is linked to health outcomes but has not been well studied in patients with chronic rhinosinusitis (CRS). The area deprivation index (ADI) is a comprehensive measure of geographic SES that ranks neighborhood disadvantage. This investigation used ADI to understand the impact of neighborhood disadvantage on CRS treatment outcomes. Methods A total of 642 study participants with CRS were prospectively enrolled and self‐selected endoscopic sinus surgery (ESS) or continued appropriate medical therapy as treatment. The 22‐item SinoNasal Outcome Test (SNOT‐22) and Medical Outcomes Study Questionnaire Short‐Form 6‐D (SF‐6D) health utility value scores were recorded pre‐ and post‐treatment. Using residence zip codes, national ADI scores were retrospectively assigned to patients. Spearman's correlation coefficients ( Rs ) and Cramer's V effect size ( φ c ) with 95% confidence interval (CI) were calculated. Results A history of ESS was associated with significantly worse ADI scores compared to no history of ESS ( φ c = 0.18; 95% CI: 0.10, 0.25; p < 0.001). Baseline total SNOT‐22 ( Rs = 0.14; 95% CI: 0.06, 0.22; p < 0.001) and SF‐6D values ( Rs = −0.20; 95% CI: −0.27, −0.12; p < 0.001) were significantly negatively correlated with national ADI rank. No significant correlations between ADI and within‐subject improvement, or achievement of >1 minimal clinically important difference, in SNOT‐22 or SF‐6D scores after treatment were found. Conclusions Geographic socioeconomic deprivation was associated with worse baseline disease severity and history of prior surgical intervention. However, ADI did not correlate with improvement in disease‐specific outcomes. The impact of socioeconomic deprivation on outcomes in CRS requires further investigation.