1.Localized Upper Back Pain: A Rare Variant of Restless Legs Syndrome
Seungwon SONG ; Namoh KIM ; Yong Woo SHIN ; Ki-Young JUNG
Journal of Sleep Medicine 2024;21(2):123-125
		                        		
		                        			
		                        			 Restless legs syndrome (RLS) is a chronic sensory-motor neuron disorder characterized by an urge to move the legs, accompanied by abnormal sensations and pain that occur during sitting and resting periods but are relieved by movement. Although RLS typically affects the lower limbs, cases of localized sensation in the chest, lower back, abdomen, arm, and perineum have also been reported. To date, only one documented case of RLS localized to the upper back has been reported. In this report, we present a rare variant of RLS that manifests as symptoms localized in the upper back. 
		                        		
		                        		
		                        		
		                        	
2.Localized Upper Back Pain: A Rare Variant of Restless Legs Syndrome
Seungwon SONG ; Namoh KIM ; Yong Woo SHIN ; Ki-Young JUNG
Journal of Sleep Medicine 2024;21(2):123-125
		                        		
		                        			
		                        			 Restless legs syndrome (RLS) is a chronic sensory-motor neuron disorder characterized by an urge to move the legs, accompanied by abnormal sensations and pain that occur during sitting and resting periods but are relieved by movement. Although RLS typically affects the lower limbs, cases of localized sensation in the chest, lower back, abdomen, arm, and perineum have also been reported. To date, only one documented case of RLS localized to the upper back has been reported. In this report, we present a rare variant of RLS that manifests as symptoms localized in the upper back. 
		                        		
		                        		
		                        		
		                        	
3.Localized Upper Back Pain: A Rare Variant of Restless Legs Syndrome
Seungwon SONG ; Namoh KIM ; Yong Woo SHIN ; Ki-Young JUNG
Journal of Sleep Medicine 2024;21(2):123-125
		                        		
		                        			
		                        			 Restless legs syndrome (RLS) is a chronic sensory-motor neuron disorder characterized by an urge to move the legs, accompanied by abnormal sensations and pain that occur during sitting and resting periods but are relieved by movement. Although RLS typically affects the lower limbs, cases of localized sensation in the chest, lower back, abdomen, arm, and perineum have also been reported. To date, only one documented case of RLS localized to the upper back has been reported. In this report, we present a rare variant of RLS that manifests as symptoms localized in the upper back. 
		                        		
		                        		
		                        		
		                        	
4.Trends in Triptan Usage in Korea:A Population-Based Cohort Study
Woo-Seok HA ; JaeWook JEONG ; Seungwon SONG ; Jungyon YUM ; Min Kyung CHU
Journal of Korean Medical Science 2024;39(31):e222-
		                        		
		                        			 Background:
		                        			Migraine presents a significant global health problem that emphasizes the need for efficient acute treatment options. Triptans, introduced in the early 1990s, have substantially advanced migraine management owing to their effectiveness compared to that of traditional medications. However, data on triptan use in migraine management from Asian countries, where migraines tend to have milder symptoms than those in European and North American countries, are limited. This study aimed to identify the trends in triptan usage in Korea. 
		                        		
		                        			Methods:
		                        			This retrospective cohort study used data from the Korean National Health Insurance Service-National Sample Cohort spanning from 2002 to 2019. Patients with migraine were identified using the International Classification of Diseases 10th revision codes, and triptan prescriptions were evaluated annually in terms of quantity, pills per patient, and associated costs. The distribution of triptan prescriptions across different medical specialties was also examined. Factors contributing to the odds of triptan use were analyzed using multivariable logistic regression. 
		                        		
		                        			Results:
		                        			From 2002 to 2019, the total number of triptan tablets, prescriptions, and patients using triptans increased by 24.0, 17.1, and 13.6 times, respectively, with sumatriptan being the most frequently prescribed type of triptan. Additionally, the number of prescriptions and related costs have consistently increased despite stable pricing because of government regulation. By 2019, only approximately one-tenth of all patients with migraines had been prescribed triptans, although there was a notable increase in prescriptions over the study period. These prescription patterns varied according to the physician’s specialty. After adjusting for patient-specific factors including age and sex, the odds of prescribing triptans were higher for neurologists than for internal medicine physicians (odds ratio 2.875, P < 0.001), while they were lower for general practitioners (odds ratio 0.220, P < 0.001). 
		                        		
		                        			Conclusion
		                        			The findings revealed an increasing trend in triptan use among individuals with migraines in Korea, aligning with global usage patterns. Despite these increases, the overall prescription rate of triptans remains low, indicating potential underutilization and highlighting the need for improved migraine management strategies across all medical fields. Further efforts are necessary to optimize the use of triptans in treating migraines effectively. 
		                        		
		                        		
		                        		
		                        	
5.Intracranial Hypertension after COVID-19 Infection
Woohyun PARK ; Seungwon SONG ; Da Eun JUNG ; Jung Hyun LEE ; Min Kyung CHU
Journal of the Korean Neurological Association 2023;41(2):141-144
		                        		
		                        			
		                        			 Headache is a frequent complaint in coronavirus disease-19 (COVID-19) patients. Nevertheless, no detailed information on the pathophysiology of headache in COVID-19 infection is currently limited. We encountered a patient developing headache, diplopia, and intracranial hypertension after COVID-19 infection. The patient no more complained of headache and diplopia after the intracranial pressure was normalized. Our case suggests that intracranial hypertension is a mechanism of headache in COVID-19 infection. We report herein a case of transient intracranial hypertension after COCVID-19 infection. 
		                        		
		                        		
		                        		
		                        	
6.Relationship of academic achievement and residency training according to admission factors in dental school
Seungwon SONG ; Minje LEE ; Hoi-Jeong LIM
Journal of Korean Academy of Oral Health 2022;46(4):161-168
		                        		
		                        			 Objectives:
		                        			The purpose of this study is to analyze the relationship between dental school students’admission scores and their grade point average (GPA) after admission, as well as the relationship between student admission scores at dental school and continuation into the residency program. 
		                        		
		                        			Methods:
		                        			This study analyzed data collected from students who entered dental school between 2013 and 2017. The outcome variables were dental school GPA and continuation into residency program. Explanatory variables included admission type (early decision admission/regular admission), academic achievements (undergraduate GPA, Dental Education Eligibility Test [DEET], Test of English Proficiency [TEPS], screening by document review, and in-depth interview score), age, sex, college alma mater, high school alma mater, college major, as well as students’ academic performance in dental school. Regression analysis was performed to determine which factors relating to dental school admissions score had an influence on academic performance in dental school, whereas logistic regression analysis was conducted to determine the students’ decision to pursue a residency. 
		                        		
		                        			Results:
		                        			Students who were foreign college graduates, majored in health sciences, accepted on the basis of early decision admission, female, or had a higher college GPA showed higher dental school GPA with statistical significance. Additionally, the likelihood of students pursuing residency was found to be higher in students who were female, of younger age, college graduates in Jeolla Provinces, or who had a higher dental school GPA. 
		                        		
		                        			Conclusions
		                        			To ensure regional equality of dental service quality, it is essential that high quality students pursue residency training. For further improvement of dental school, this study’s results can be used as a reference to make students coming from other regions pursue the residency program and contribute to the regional community. 
		                        		
		                        		
		                        		
		                        	
7.Lambert-Eaton Myasthenic Syndrome Presenting as Cerebellar Symptoms
Seungwon SONG ; Jinhyuk CHO ; Seong Ho JEONG
Journal of the Korean Neurological Association 2021;39(3):222-224
		                        		
		                        			
		                        			A 79-year-old man visited neurology clinic due to gait ataxia and vertigo for 10 months. Neurologic examination revealed saccadic pursuit, mild dysmetria, impaired tandem gait, and areflexia that recovers after exercise. The amplitude of compound muscle action potentials recorded on the abductor digiti minimi increased up to 6,639.4% during repetitive nerve stimulation at 50 Hz stimulation. This case demonstrates that clinicians should consider Lambert-Eaton myasthenic syndrome as a differential diagnosis when a patient complains of gait ataxia and vertigo.
		                        		
		                        		
		                        		
		                        	
8.Lambert-Eaton Myasthenic Syndrome Presenting as Cerebellar Symptoms
Seungwon SONG ; Jinhyuk CHO ; Seong Ho JEONG
Journal of the Korean Neurological Association 2021;39(3):222-224
		                        		
		                        			
		                        			A 79-year-old man visited neurology clinic due to gait ataxia and vertigo for 10 months. Neurologic examination revealed saccadic pursuit, mild dysmetria, impaired tandem gait, and areflexia that recovers after exercise. The amplitude of compound muscle action potentials recorded on the abductor digiti minimi increased up to 6,639.4% during repetitive nerve stimulation at 50 Hz stimulation. This case demonstrates that clinicians should consider Lambert-Eaton myasthenic syndrome as a differential diagnosis when a patient complains of gait ataxia and vertigo.
		                        		
		                        		
		                        		
		                        	
9.Costs Attributable to Overweight and Obesity in Working Asthma Patients in the United States.
Chongwon CHANG ; Seung Mi LEE ; Byoung Whui CHOI ; Jong hwa SONG ; Hee SONG ; Sujin JUNG ; Yoon Kyeong BAI ; Haedong PARK ; Seungwon JEUNG ; Dong Churl SUH
Yonsei Medical Journal 2017;58(1):187-194
		                        		
		                        			
		                        			PURPOSE: To estimate annual health care and productivity loss costs attributable to overweight or obesity in working asthmatic patients. MATERIALS AND METHODS: This study was conducted using the 2003–2013 Medical Expenditure Panel Survey (MEPS) in the United States. Patients aged 18 to 64 years with asthma were identified via self-reported diagnosis, a Clinical Classification Code of 128, or a ICD-9-CM code of 493.xx. All-cause health care costs were estimated using a generalized linear model with a log function and a gamma distribution. Productivity loss costs were estimated in relation to hourly wages and missed work days, and a two-part model was used to adjust for patients with zero costs. To estimate the costs attributable to overweight or obesity in asthma patients, costs were estimated by the recycled prediction method. RESULTS: Among 11670 working patients with a diagnosis of asthma, 4428 (35.2%) were obese and 3761 (33.0%) were overweight. The health care costs attributable to obesity and overweight in working asthma patients were estimated to be $878 [95% confidence interval (CI): $861–$895] and $257 (95% CI: $251–$262) per person per year, respectively, from 2003 to 2013. The productivity loss costs attributable to obesity and overweight among working asthma patients were $256 (95% CI: $253–$260) and $26 (95% CI: $26–$27) per person per year, respectively. CONCLUSION: Health care and productivity loss costs attributable to overweight and obesity in asthma patients are substantial. This study's results highlight the importance of effective public health and educational initiatives targeted at reducing overweight and obesity among patients with asthma, which may help lower the economic burden of asthma.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Asthma/*economics/epidemiology/therapy
		                        			;
		                        		
		                        			*Cost of Illness
		                        			;
		                        		
		                        			*Efficiency
		                        			;
		                        		
		                        			*Employment
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			*Health Care Costs
		                        			;
		                        		
		                        			Health Expenditures
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Obesity/*economics/epidemiology/therapy
		                        			;
		                        		
		                        			Overweight/economics/epidemiology/therapy
		                        			;
		                        		
		                        			United States/epidemiology
		                        			;
		                        		
		                        			Young Adult
		                        			
		                        		
		                        	
10.Epizootiological characteristics of viable bacteria and fungi in indoor air from porcine, chicken, or bovine husbandry confinement buildings.
Katharine ROQUE ; Gyeong Dong LIM ; Ji Hoon JO ; Kyung Min SHIN ; Eun Seob SONG ; Ravi GAUTAM ; Chang Yul KIM ; Kyungsuk LEE ; Seungwon SHIN ; Han Sang YOO ; Yong HEO ; Hyoung Ah KIM
Journal of Veterinary Science 2016;17(4):531-538
		                        		
		                        			
		                        			Microorganisms found in bioaerosols from animal confinement buildings not only foster the risk of spreading diseases among livestock buildings, but also pose health hazards to farm workers and nearby residents. This study identified the various microorganisms present in the air of swine, chicken, and cattle farms with different kinds of ventilation conditions in Korea. Microbial air samples were collected onto Petri dishes with bacterial or fungal growth media using a cascade impactor. Endotoxin levels in total dust were determined by the limulus amebocyte lysate kinetic QCL method. Prevalent Gram-positive bacteria were Staphylococcus (S.) lentus, S. chromogenes, Bacillus (B.) cereus, B. licheniformis, and Enterococcus faecalis, while the dominant fungi and Gram-negative bacteria were Candida albicans and Sphingomonas paucimobilis, respectively. Considering no significant relationship between the indoor dust endotoxin levels and the isolation of Gram-negative bacteria from the indoor air, monitoring the indoor airborne endotoxin level was found to be also critical for risk assessment on health for animals or workers. The present study confirms the importance of microbiological monitoring and control on animal husbandry indoor air to ensure animal and worker welfare.
		                        		
		                        		
		                        		
		                        			Agriculture
		                        			;
		                        		
		                        			Animal Husbandry
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Bacillus
		                        			;
		                        		
		                        			Bacteria*
		                        			;
		                        		
		                        			Candida albicans
		                        			;
		                        		
		                        			Cattle
		                        			;
		                        		
		                        			Chickens*
		                        			;
		                        		
		                        			Dust
		                        			;
		                        		
		                        			Enterococcus faecalis
		                        			;
		                        		
		                        			Farmers
		                        			;
		                        		
		                        			Fungi*
		                        			;
		                        		
		                        			Gram-Negative Bacteria
		                        			;
		                        		
		                        			Gram-Positive Bacteria
		                        			;
		                        		
		                        			Horseshoe Crabs
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Livestock
		                        			;
		                        		
		                        			Methods
		                        			;
		                        		
		                        			Risk Assessment
		                        			;
		                        		
		                        			Sphingomonas
		                        			;
		                        		
		                        			Staphylococcus
		                        			;
		                        		
		                        			Swine
		                        			;
		                        		
		                        			Ventilation
		                        			
		                        		
		                        	
            
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