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국윤준,이종승,류정민 대한소아응급의학회 2021 대한소아응급의학회지 Vol.8 No.2
Purpose: Acute bronchiolitis (AB)-related return visits incur overuse of emergency medicine resources, crowding of emergency departments (EDs), and deterioration of rapport with the guardians. The authors aimed to analyze factors associated with the return visits to the ED. Methods: This study was conducted based on the medical records of 447 children aged 24 months or younger with AB who visited the ED from January 2019 through December 2020. A return visit was defined as an AB-related visit to the ED within 7 days of index visit. According to the return visit, we compared the clinical features. Multivariable logistic regression was conducted to identify independent factors for the return visit. Results: Of the 323 children with AB, 77 (23.8%) made return visits. The returning children showed a younger median age (6 [interquartile range, 2-10] vs. 8 months [3-14]; P < 0.001), a lower mean oxyhemoglobin saturation (92.9 ± 4.3% vs. 97.1 ± 1.8%; P < 0.001), and higher frequencies of congenital heart diseases (22.1% vs. 10.6%; P = 0.009) and bronchopulmonary dysplasia (11.7% vs. 5.7%; P = 0.013), and respiratory syncytial virus infection (57.1% vs. 37.0%; P = 0.002). No other variables, such as the hospitalization rate, differed as per return visits. The factors associated with return visits were respiratory syncytial virus infection (adjusted odds ratio, 9.41; 95% confidence interval, 2.13-41.57), lower oxygen saturation (2.00; 1.64-2.43), and age younger than 3 months (1.25; 1.07-1.24). Conclusion: AB-related return visits may be associated with age younger than 3 months, lower oxygen saturation, and respiratory syncytial virus infection.
김동윤,양현승,국윤준,이주용 대한안과학회 2015 Korean Journal of Ophthalmology Vol.29 No.2
Purpose: To analyze the correlation between microperimetric parameters and optical coherent tomographic findings in the eyes of patients with macular diseases. Methods: A total of 64 eyes were included in this retrospective cross-sectional study. Differences in the macular integrity index and microperimetric parameters were analyzed according to types of outer retinal band defects. Correlations between average threshold values and retinal thickness in the corresponding areas were analyzed. Finally, microperimetric parameters were compared between inner and outer retinal lesions. Results: Measures of best-corrected visual acuity, macular integrity index, and average threshold values were significantly worse in eyes with defects in the ellipsoid portion of the photoreceptor inner segment (ISe), the cone outer segment tip (COST), and the external limiting membrane (ELM) than in eyes without ISe, COST, and ELM defects. Also, visual functionality is more significantly impacted by ELM defects than by other hyper- reflective band defects. There was a significant negative correlation between retinal thickness and the average threshold of the corresponding area in the Early Treatment Diabetic Retinopathy Study grid. Microperimetric parameters in the eyes of patients with inner retinal lesions were better than in the eyes of patients with outer retinal lesions. Conclusions: The macular integrity index may be a useful factor for reflecting the functional aspects of macular diseases. Specifically, ELM, ISe, and COST defects are significantly associated with poor retinal sensitivity and macular integrity index values that suggest abnormalities. Among eyes with these particular defects, the visual functionality of patients is most sensitively impacted by ELM defects. This finding suggests that microperimetric parameters are sensitive and useful for evaluating functional abnormalities in the eyes of patients with macular disease, particularly in patients with outer retinal pathology.