Otsuka, Fumio

Background: Nasal and sinonasal findings have been reported in patients with Behçet’s syndrome, but their frequency, clinical significance, and relationship to underlying disease remain unclear. We performed a scoping review to map the published literature on epidemiology, clinical characteristics, and management. Methods: Following PRISMA-ScR guidance, we systematically searched MEDLINE, EMBASE, and Web of Science from inception through June 2026 for peer-reviewed primary studies reporting nasal or sinonasal findings in patients with Behçet’s syndrome. Two reviewers independently screened studies and extracted data. Results: Fifteen eligible studies, including seven case reports and eight observational studies, were identified. Reported frequencies of nasal or sinonasal findings varied substantially across studies. A spectrum of nasal and sinonasal symptoms was noted among the literature, including direct mucosal lesions, sinonasal symptoms and functional abnormalities such as olfactory impairment or delayed mucociliary clearance, and secondary nasal conditions occurring in patients with Behçet’s syndrome. Oral ulcers were consistently reported in the limited studies describing associated systemic features. Treatment data were sparse, and no evidence-based management approach specific to nasal disease was identified. Conclusions: The published literature suggests that a range of nasal and sinonasal findings may occur in patients with Behçet’s syndrome. However, the available evidence is sparse, heterogeneous, and insufficient to determine true prevalence, attribution, or optimal management. Future studies should distinguish direct Behçet-related nasal lesions from secondary or nonspecific findings and use standardized clinical assessment.

AbstractBackgroundAdverse effects of medical treatment (AEMT) pose significant risks to paediatric patients. However, the mortality trends associated with AEMT in this population have been unclear.ObjectiveWe aimed to clarify the trends in the incidence, disability‐adjusted life years (DALYs) and mortality rates of AEMT for children in the US from 2000 to 2019.MethodsData were retrieved from the Global Burden of Disease study 2019. We estimated age‐standardized incidence, DALYs and mortality rates of paediatric AEMT per 100,000 children in the US using a Bayesian meta‐regression model. We also analysed incidence, DALYs and mortality in different age groups, and employed Joinpoint regression models to assess the age‐ and sex‐specific trends.ResultsThe number of deaths due to AEMT in children, the number of cases, and DALYs were 105.1, 551,076 and 145,555 in 2019, decreased by 37.5%, 6% and 28% from those in 2000, respectively. Age‐standardized mortality rates decreased across all age groups, while the incidence increased across all age groups with an average annual percentage change (AAPC) of 2.2% in those children <1 year and 4.5% in 5–9 years of age. The increases in DALYs over time was higher in children aged 1–4 years (AAPC: 0.51, 95% CI: 0.47, 0.62) and 5–9 years (AAPC: 0.33, 95% CI: 0.15, 0.50), with the 1–4 year age group being the highest.ConclusionThe study reveals declining AEMT mortality but rising incidence and DALYs, emphasizing a disproportionate burden in <1, 1–4 and 5–9 years. To develop effective mitigation strategies, future research is warranted to identify the causes of increased AEMT in children, especially young males.