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Objectives: As the understanding of the pathophysiology of chronic rhinosinusitis has increased over the last few years, it has been discovered that biologic therapy targeting type 2 inflammatory molecules can be beneficial for those with difficult-to-treat chronic rhinosinusitis with nasal polyposis. Given the recency of biologics, there is somewhat limited evidence on when to prescribe these medications and who should receive them. A recent consensus paper published by a group of Canadian rhinologists gave recommendations regarding prescribing biologics to patients with chronic rhinosinusitis with nasal polyposis (CRSwNP). This study aimed to outline current practices and prescribing patterns of biologics for chronic rhinosinusitis in Canada and contrast this to existing guidelines. Materials/Methods: An online survey was distributed to members of the Canadian Rhinology Group of the Canadian Society of Otolaryngology—Head and Neck Surgery. The survey contained 44 questions, with 17 questions covering various topics related to criteria for initializing biologic therapy, investigations ordered prior to initialization of a biologic, and follow-up schedules. The responses were subsequently compared to clinical guidelines. Results: Twenty-one physicians responded to the survey. One response was discarded for this analysis as the respondent did not prescribe biologics. The biologic agent of choice for the majority of physicians (85%) was Dupilumab (Dupixent). The most used patient-reported outcome measure used was the SNOT-22 (80%), and most physicians (90%) confirm that their patients have undergone adequate sinus surgery with a computed tomography (CT) scan prior to considering biologic therapy. Investigations ordered prior to therapy and follow-up schedules varied. Only 10% of respondents consistently refer their patients to a multidisciplinary clinic prior to prescribing biologics despite recommendations in guidelines, but 70% involve an allergist and/or a respirologist in the care of these patients. Conclusions: Most respondents follow the recommendations made by the Canadian and international guidelines [European Position Paper on Rhinosinusitis and Nasal Polyps (EPOS), European Forum for Research and Education in Allergy and Airway Diseases (EUFOREA)]. The lack of multidisciplinary clinics across the country could be contributing to the low number of physicians using this resource for their patients despite recommendations. As our knowledge about biologics and CRSwNP improves, and with updated guidelines recently published, this survey should be expanded and repeated in the future to revaluate biologic prescribing practices in Canada. [ABSTRACT FROM AUTHOR]

Objectives: Patients with a peritonsillar abscess (PTA) often present to emergency departments as the first point of medical contact. Upper respiratory tract infections (URTIs) are more frequent in the winter. Therefore, we hypothesize that the incidence of PTAs will be more frequent in colder winter months as well. This is the first study assessing the seasonal variation and epidemiology of PTA presentations to an emergency department in Atlantic Canada, home to a unique maritime climate. Methods: A retrospective cohort study was conducted through a chart review of all patients who presented to the Saint John Regional Hospital Emergency Department from January 1, 2015, to December 31, 2020. Patient characteristics, treatment, and microbiology were reported. A chi-square goodness-of-fit test assessed the seasonal variation of PTA. Pearson correlations assessed PTA incidence per mean monthly temperature and humidity. Results: A total of 75 patients were included. 57.3% were male and 42.7% were female, with a mean age (±SD) of 35.9 ± 14.0. Most patients presented afebrile (82.7%, cutoff ≥ 38.0°C). Approximately half of all patients had an elevated WBC count (49.3%, cutoff ≥ 10.9 × 109). The most common bacteria isolated were Streptococcus species followed by anaerobic bacteria (17.9%). No significant variation was found with respect to season (X2(3) = 1.0, P =.801), temperature (r(70) = 0.198, P =.096), or humidity, (r(70) = 0.063, P =.599). Conclusion: This study did not find a seasonal variation of PTA in a maritime climate. These findings question the anecdotal hypothesis that PTA is associated with progression from acute URTIs and therefore would be more common in the winter months. [ABSTRACT FROM AUTHOR]

Background: Chronic rhinosinusitis with nasal polyposis (CRSwNP) often coexists with lower airway disease. With the overlap between upper and lower airway disease, optimal management of the upper airways is undertaken in conjunction with that of the lower airways. Biologic therapy with targeted activity within the Type 2 inflammatory pathway can improve the clinical signs and symptoms of both upper and lower airway diseases. Knowledge gaps nevertheless exist in how best to approach patient care as a whole. There have been sixteen randomized, double-blind, placebo-controlled trails performed for CRSwNP targeted components of the Type 2 inflammatory pathway, notably interleukin (IL)-4, IL-5 and IL-13, IL- 5R, IL-33, and immunoglobulin (Ig)E. This white paper considers the perspectives of experts in various disciplines such as rhinology, allergy, and respirology across Canada, all of whom have unique and valuable insights to contribute on how to best approach patients with upper airway disease from a multidisciplinary perspective. Methods: A Delphi Method process was utilized involving three rounds of questionnaires in which the first two were completed individually online and the third was discussed on a virtual platform with all the panelists. A national multidisciplinary expert panel of 34 certified specialists was created, composed of 16 rhinologists, 7 allergists, and 11 respirologists who evaluated the 20 original statements on a scale of 1–9 and provided comments. All ratings were quantitively reviewed by mean, median, mode, range, standard deviation and inter-rater reliability. Consensus was defined by relative interrater reliability measures—kappa coefficient (κ ) value > 0.61. Results: After three rounds, a total of 22 statements achieved consensus. This white paper only contains the final agreed upon statements and clear rationale and support for the statements regarding the use of biologics in patients with upper airway disease. Conclusion: This white paper provides guidance to Canadian physicians on the use of biologic therapy for the management of upper airway disease from a multidisciplinary perspective, but the medical and surgical regimen should ultimately be individualized to the patient. As more biologics become available and additional trials are published we will provide updated versions of this white paper every few years. [ABSTRACT FROM AUTHOR]