Publications by authors named "Rodney Schlosser"

Background: Olfactory dysfunction (OD) in the elderly is common and associated with numerous comorbidities, yet often underrecognized. This study sought to develop an instrument for widespread screening of this condition.

Methods: Demographic factors, comorbidities, and olfactory-related questions were examined in a focus group (N = 20) and development cohort (N = 190).

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High prescription drug prices can financially strain patients and insurers, with substantial clinical repercussions. In recent years, direct-to-consumer (DTC) pharmacies have emerged as potentially lower-cost alternatives for patients to fill prescriptions. We evaluated whether drugs commonly prescribed by otolaryngologists were available at a national DTC pharmacy (Mark Cuban Cost Plus Drug Company [MCCPDC]) and estimated potential Medicare savings from DTC pricing.

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  • This study is the first to analyze both patient expectations and satisfaction after endoscopic sinus surgery (ESS) using mixed methods, including interviews and statistical analyses.
  • 52 patients participated, revealing that 56% were male, with an average age of 55.7 years; satisfaction was primarily influenced by whether their pre-operative expectations were met.
  • The findings suggest that addressing and aligning patient expectations is crucial for maximizing satisfaction with surgical outcomes in ESS, indicating a need for further research in this area.
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The original manufacturer of azelastine‒fluticasone (AZ‒FL) prevented generic availability until 2020 via patent enforcement. Following generic availability of AZ‒FL, Medicare utilization increased and spending decreased. Retail prices for generic AZ‒FL remain high due to markup by manufacturers and pharmacies.

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Background: The inability of topical medications to reach sinus cavities is a potential reason for lack of efficacy in chronic rhinosinusitis (CRS). One purpose of endoscopic sinus surgery (ESS) is to enable delivery of medications into the sinus cavities. The exhalation delivery system with fluticasone (EDS-FLU; XHANCE) creates unique biomechanics that enable deposition of intranasal corticosteroid into sinuses and sinus drainage pathways but may have differing efficacy in operated versus unoperated sinuses.

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Background: Intranasal trigeminal function is important in detecting environmental stimuli. The impact of age-associated chemosensory dysfunction upon taste and olfaction is well described, but an understanding of trigeminal loss (chemesthesis) is lacking.

Objective: The goal of this study was to characterize trigeminal function in a cohort of older adults and explore potential impacts.

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Sham procedures produce a clinically significant impact on patient-reported outcome measures This effect should be considered when designing and interpreting the results of RCTs.

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Nonsteroidal anti-inflammatory drug-exacerbated respiratory disease (NSAID-ERD) presents a significant challenge in clinical management owing to recalcitrant disease with accompanying profound impacts on patient quality of life. Although asthma represents a significant component of this disease, quality of life disruptions are driven primarily by recalcitrant sinonasal problems, olfactory dysfunction, and the associated psychosocial and dietary implications. This review delves into specific quality of life metrics used to assess NSAID-ERD and the associated health care burden and financial implications of this disease, offering insights into the comparative challenges in chronic rhinosinusitis with nasal polyps when available.

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Background: Sociodemographic status (SDS) including race/ethnicity and socioeconomic status as approximated by education, income, and insurance status impact pulmonary disease in people with cystic fibrosis (PwCF). The relationship between SDS and chronic rhinosinusitis (CRS) remains understudied.

Methods: In a prospective, multi-institutional study, adult PwCF completed the 22-Question SinoNasal Outcome Test (SNOT-22), Smell Identification Test (SIT), Questionnaire of Olfactory Disorder Negative Statements (QOD-NS), and Cystic Fibrosis Questionnaire-Revised (CFQ-R).

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CRSwNP-specific mean total annual spending ranged from $5,837 (EDS-FLU) to $28,058 (dupilumab). Most CRSwNP patients receiving biologics had comorbid asthma and did not undergo sinus surgery. While biologics were covered by most Medicare Part D plans, only 37% of plans covered EDS-FLU.

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Objective: To evaluate the severity and prevalence of headache and facial pain/pressurere in the chronic rhinosinusitis (CRS) population.

Data Sources: CINAHL, PubMed, Scopus.

Review Methods: The literature was searched from inception through June 2023 for English language articles documenting "headache" or "facial pain/pressure" and "chronic rhinosinusitis.

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Introduction: Nasal and sinus surgery, especially using endoscopy, relies upon adequate haemostasis to be safe and effective. Often other haemostatic methods, such as cautery are not viable, and other methods must be employed. This study examines the effectiveness of dexmedetomidine in controlled hypotension and for surgical field visibility in endoscopic sinus surgery and other nasal surgeries.

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Background: Evidence supporting topical steroids for the treatment of chronic rhinosinusitis without nasal polyposis (CRSsNP) is unclear. Recent trials describe alternative topical steroid delivery modalities, including rinses and exhalation delivery system (EDS), necessitating a re-examination of the current literature.

Methods: Cochrane Library, CINAHL, PubMed, and Scopus databases were searched from inception to February 13, 2024 for placebo-controlled randomized control trials on topical steroids used to treat CRSsNP, including topical spray, nasal irrigation, sinonasal catheter, and EDS modalities.

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  • A global collaborative study reviewed the management and outcomes of malignant skull base tumors, collecting data from 28 institutions involving 3,061 patients.
  • The majority of surgeries utilized an open approach (55%), with endoscopic (36%) and combined techniques (9.6%) being less common, and the overall 5-year survival rates were 65% for overall survival (OS) and 71.7% for disease-specific survival (DSS).
  • Factors such as older age, comorbidities, and the extent of tumor involvement were identified as independent predictors of survival, while adjuvant radiation therapy (RT) emerged as a protective factor in outcomes.
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Background: Headache and facial pain are common symptoms of chronic rhinosinusitis (CRS). However, given the numerous etiologies that can cause these symptoms, the impact of sinus surgery is not well characterized.

Methods: A systematic review was performed by searching the literature from inception through June 6, 2023.

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Objectives: This study aims to characterize the effect of medical therapy on headache and facial pain/pressure among patients with chronic rhinosinusitis (CRS).

Data Sources: CINAHL, PubMed, and Scopus.

Methods: CINAHL, PubMed, and Scopus were searched from inception through April 10th, 2024, for English language articles reporting headache or facial pain/pressure outcomes in CRS patients.

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Utilization of orbital decompressions (ODS) increased (CAGR: +3.2%) from 2000 to 2019. FDA approved teprotumumab in January 2020; ODS utilization decreased (CAGR: -14.

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Nasal obstruction is the subjective perception and objective state of insufficient airflow through the nose. Nasal congestion, conversely, describes a state of not just inadequate airflow or obstructive phenomena but also pressure- and mucus-related states to the patient. Nasal receptors belonging to the transient receptor potential (TRP) protein family mediate the sense of nasal patency via the trigeminal nerve.

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  • The study aimed to identify factors that predict improvement in chronic rhinosinusitis symptoms, measured by the SNOT-22, after initiating highly effective modulator therapy in adults with cystic fibrosis.
  • Data from 184 participants showed that worse initial SNOT-22 scores, having the F508del mutation, and not having prior modulator therapy were linked to greater symptom improvement post-therapy.
  • The minimal clinically important difference (MCID) for the SNOT-22 in this population was determined to be 8.5 points, indicating significant symptom improvement, and the test demonstrated strong internal consistency.
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  • Trigeminal-specific stimulants activate different receptors, leading to variations in how sensory perception is experienced, but it's unclear if this sensitivity is uniform across various TRP receptors.
  • A study was conducted with 50 participants to test trigeminal sensitivity using three stimulants (eucalyptol, isothiocyanate, acetic acid) and olfaction assessments, revealing mixed results in sensitivity and correlations.
  • The findings indicate that there is no significant correlation between the sensitivity of different TRP receptors or with age, suggesting that dysfunction in these receptors may cause different symptoms, warranting further research on TRPV1 and TRPA1 receptor interactions.
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  • The study investigates the gene expression differences in the superior turbinate mucosa of patients with chronic rhinosinusitis (CRS) without polyps, specifically comparing those with normal and impaired sense of smell (normosmic and dysosmic).
  • Tissue samples were collected from patients undergoing endoscopic sinus surgery, followed by RNA sequencing to identify differentially expressed genes and their associated biological pathways.
  • Findings revealed significant gene expression changes linked to olfactory dysfunction, highlighting the potential role of Type 2 inflammation and specific signaling pathways like IL-4, IL-10, and rhodopsin-like receptors in patients with CRS.
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In 2021, Medicare spending on biologics was $926 million in Part B (FFS) and $1.3 billion in Part D (FFS/MA). Between 2017 and 2021, annual Medicare spending on biologics increased by approximately 200%.

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Background: Chronic rhinosinusitis (CRS) is common in people with cystic fibrosis (PwCF). Rhinologic symptom prioritization and areas that influence CRS treatment choices, including pursuing endoscopic sinus surgery (ESS), remain understudied.

Methods: Adult PwCF + CRS were enrolled at eight centers into a prospective, observational study (2019-2023).

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Background: Chronic rhinosinusitis (CRS) is a prevalent inflammatory disease. No medications are Food and Drug Administration-approved for the most common form, CRS without nasal polyps (also called "chronic sinusitis"). Novel biomechanics of the exhalation delivery system deliver fluticasone (EDS-FLU; XHANCE) to sinonasal areas above the inferior turbinate, especially sinus drainage pathways not reached by standard-delivery nasal sprays.

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