1.Unrecognized bony Bankart lesion accompanying a dislocated four-part proximal humerus fracture before surgery: a case report
Seungjin LEE ; Daehun SHIN ; Yoonsuk HYUN
Clinics in Shoulder and Elbow 2022;25(1):68-72
Proximal humerus fractures are the third most common fractures, totaling 4% to 5% of all fractures. Here, we present the case of a 39-yearold man with a dislocated four-part fracture of the proximal humerus with a huge bony Bankart lesion. Preoperatively, the bony Bankart lesion of the glenoid was not visualized on computed tomography scans or magnetic resonance imaging because the fracture of the proximal humerus was comminuted, displaced, and complex. It was planned for only the humerus fracture to be treated by open reduction and internal fixation using a locking plate. However, a fractured fragment remained under the scapula after reduction of the dislocated humeral head. This was mistaken for a dislocated bone fragment of the greater tuberosity and repositioning was attempted. After failure, visual confirmation showed that the bone fragment was a piece of the glenoid. After reduction and fixation of this glenoid part with suture anchors, we acquired a well-reduced fluoroscopic image. Given this case of complex proximal humerus fracture, a glenoid fracture such as a bony Bankart lesion should be considered preoperatively and intraoperatively in such cases.
2.A Refractory Livedoid Vasculopathy Accompanied by Methylene Tetrahydrofolate Reductase Gene Polymorphism Successfully Treated with Hyperbaric Oxygen Therapy
Sang-Hoon LEE ; Yoonsuk LEE ; Eung Ho CHOI
Annals of Dermatology 2023;35(Suppl1):S59-S62
Livedoid vasculopathy (LV) is a chronic coagulation disorder characterized by recurrent, painful ulcers on the lower extremities. Methylene tetrahydrofolate reductase (MTHFR) gene polymorphism is associated with coagulopathy. Therapeutic options usually include anti-inflammatory or immunosuppressive agents. However, the condition is still highly challenging to manage and no consensus over the first-line treatment for LV exists. Furthermore, when LV is accompanied with MTHFR gene polymorphism, clinical presentations could be more severe and resistant to treatment. We report a case of refractory LV accompanied by MTHFR gene polymorphism, which was successfully treated with hyperbaric oxygen therapy (HBOT). A 63-year-old female patient presented with multiple painful ulcers, atrophie blanches, and retiform purpura on both lower legs and feet. Histopathologic findings were compatible with LV. LV was diagnosed based on these clinicopathological findings. Following the diagnosis, we treated the patient with pentoxifylline, aspirin, systemic corticosteroid, antihistamine, and antibiotics. In spite of six-month treatment, the skin lesions did not improve; hence, HBOT was performed. It was performed at 2.0 absolute atmosphere for 120 minutes each time, three times a week. After 4 sessions, the ulcers began to heal and after 13 sessions, the skin lesions almost healed. During the eight-month followup period, the skin ulcers did not recur and the symptoms remained stable. Additionally, it was confirmed that she had MTHFR gene polymorphism after a genetic test. In conclusion, we wish to provide evidence regarding the effectiveness of HBOT and suggest that HBOT might be a considerable treatment option in refractory LV.
3.Beta-Meta: a meta-analysis application considering heterogeneity among genome-wide association studies
Gyungbu KIM ; Yoonsuk LEE ; Jeong Ho PARK ; Dongmin KIM ; Wonseok LEE
Genomics & Informatics 2022;20(4):e49-
Many packages for a meta-analysis of genome-wide association studies (GWAS) have beendeveloped to discover genetic variants. Although variations across studies must be considered, there are not many currently-accessible packages that estimate between-study heterogeneity. Thus, we propose a python based application called Beta-Meta which can easilyprocess a meta-analysis by automatically selecting between a fixed effects and a randomeffects model based on heterogeneity. Beta-Meta implements flexible input data manipulation to allow multiple meta-analyses of different genotype-phenotype associations in asingle process. It provides a step-by-step meta-analysis of GWAS for each association inthe following order: heterogeneity test, two different calculations of an effect size and ap-value based on heterogeneity, and the Benjamini-Hochberg p-value adjustment. Thesemethods enable users to validate the results of individual studies with greater statisticalpower and better estimation precision. We elaborate on these and illustrate them with examples from several studies of infertility-related disorders.
4.Comparison of nutritional status by energy level of night snack in Korean adults: using the data from 2005 Korean National Health and Nutrition Examination Survey.
Yoonsuk SUH ; Eun Kyoung LEE ; Young Jin CHUNG
The Korean Journal of Nutrition 2012;45(5):479-488
This study aims to investigate the nutritional status of night eaters using the data from 2005 Korean National Health and Nutrition Examination Survey. A total of 3,903 subjects aged 20 and above were divided into 3 groups by using 24-hr recall data according to the night snack calorie intake: non-night snack, night snack less than 500 kcal and 500 kcal and more. Their data were analyzed to find out the difference on the socio-demographic, anthropometric, blood pressure, blood parameters and dietary characteristics. Among the subjects, non-night eaters were 66.0%, night eaters of less than 500 kcal were 28.4% and 500 kcal and above were 5.6%. Male adults, young-aged, higher educated, higher income earner, breakfast skipper and frequent dine-outer (3 times and more a day) were found more in the night eaters with 500 kcal and above. Night eaters above 500 kcal showed higher waist circumference, Glu-FBS, Glu-PP120 and also showed higher daily intake of fat and alcohol per 1,000 kcal and food groups of meat & eggs, beverages and alcohol drinks (p < 0.05), while they showed the lowest carbohydrate energy ratio of 58.3 +/- 13.7 among the three groups. These results suggest that habitual night snack intake above 500 kcal could lead to abdominal obesity and diabetes due to higher intake of meat, fat and alcohol.
Adult
;
Aged
;
Beverages
;
Blood Pressure
;
Breakfast
;
Eggs
;
Humans
;
Male
;
Meat
;
Nutrition Surveys
;
Nutritional Status
;
Obesity, Abdominal
;
Ovum
;
Snacks
;
Waist Circumference
5.Study on snack intakes in obese elementary students in Jeju city.
Yangsook KO ; You Yeong LEE ; Insook CHAE ; Yunkyoung LEE ; Yoonsuk JEKAL ; Hyeung Keun PARK
Journal of Nutrition and Health 2017;50(1):85-97
PURPOSE: This study was conducted to investigate dietary habits related to weight reduction and snack intake habits of 4th to 5th grade elementary students located in Jeju-si, Jeju, South Korea. METHODS: The 4(th) and 5(th) grade elementary school students (total n = 234, equally matched numbers of normal weight children and overweight/obese children (n = 117/group)) were surveyed using a questionnaire and a 24-hour dietary recall method in Oct 2015. RESULTS: The percentage of students who experienced reduced food intake to control weight was 26.3% in the normal weight group (NG) and 77.6% in the obese group (OG). Most frequently answered meal for reduced intake was snacks in the NG and dinner in the OG. Percentages of daily calorie intake among subjects were 17.2% for breakfast, 33.8% for lunch, 29.7% for dinner, and 19.3% for snacks. Frequency of snack intake was 2.1 times a week in NG and 1.6 times a week in OG, which showed a statistical difference between body weight groups. Types of snack foods were distinctly different depending on where children consumed them, although no difference was observed between NG and OG. In addition, snack intake level of low energy and nutrient-dense foods was significantly lower in the OG compared to the NG, whereas snack intake level of energy dense and low-nutritive foods was not different between the OG and NG. CONCLUSION: Taken together, snack intake level with consideration of frequency and amount of snack intake showed that children in the OG consumed significantly less low energy and nutrient-dense foods compared to the NG. Therefore, nutritional education for choosing healthy snack foods for children regardless of body weight status is crucial based on family-school links.
Body Weight
;
Breakfast
;
Case-Control Studies
;
Child
;
Eating
;
Education
;
Food Habits
;
Humans
;
Korea
;
Lunch
;
Meals
;
Methods
;
Obesity
;
Snacks*
;
Weight Loss
6.Usefulness of serum lactate as a predictor of successful discontinuation of continuous atropine infusion in patients with severe acute organophosphate poisoning.
Ho Chul KWON ; Yong Sung CHA ; Gyo Jin AN ; Yoonsuk LEE ; Hyun KIM
Clinical and Experimental Emergency Medicine 2018;5(3):177-184
OBJECTIVE: In severe organophosphate (OP) poisoning, administration of atropine via continuous intravenous infusion is typically considered. To date, there have been no studies on predicting successful atropine discontinuation through plasma cholinesterase (PChE) and serum lactate levels, which are monitored during critical care in severe acute OP poisoning. Therefore, we retrospectively evaluated the usefulness of serum lactate and PChE as predictors of successful discontinuation of atropine infusion. METHODS: This retrospective observational study was performed on consecutive adult patients treated for severe acute OP poisoning between March 2011 and December 2016. We sequentially evaluated serum lactate and PChE levels on emergency department arrival and before a discontinuation trial of atropine infusion. Discontinuation of atropine intravenous infusion was attempted in patients after clearance of respiratory secretions and cessation of bronchoconstriction. Discontinuation of atropine infusion attempts were divided into successful and failed trials. RESULTS: A total of 95 trials were conducted in 62 patients. Serum lactate levels before trials were significantly different between patients with successful and failed trials. The area under the curve for prediction of successful atropine discontinuation using serum lactate levels before trial discontinuation were 0.742 (95% confidence interval, 0.638 to 0.846). PChE level was not significantly different between two groups. CONCLUSION: Serum lactate levels before the discontinuation trial of atropine infusion served to predict successful discontinuation in severe acute OP poisoning.
Adult
;
Atropine*
;
Bronchoconstriction
;
Cholinesterases
;
Critical Care
;
Emergency Service, Hospital
;
Humans
;
Infusions, Intravenous
;
Lactic Acid*
;
Observational Study
;
Organophosphate Poisoning*
;
Plasma
;
Poisoning
;
Prognosis
;
Retrospective Studies
7.Relative Risk and Clinical Severity Assessment in Patients with Non-Oral Route Organophosphate Poisoning Compared with Oral Route Poisoning.
Woo Jin JUNG ; Min Heui YU ; Yoonsuk LEE ; Hyun KIM ; Yong Sung CHA ; Kyung Hye PARK
Yonsei Medical Journal 2018;59(8):982-988
PURPOSE: Organophosphates, commonly used in agricultural pesticides, pose high risks and incidences of poisoning. In the present study, we investigated the relative risk and clinical severity, including laboratory results, of non-oral route poisoning (NORP) patients, compared to oral route poisoning (ORP) patients. MATERIALS AND METHODS: A single institutional toxicology database registry was utilized to gain information on clinical laboratory results on organophosphate poisoning patients who visited the emergency department (ED) between January 2000 and October 2016. Clinical outcomes, such as mortality and complication rates, were compared using 1:2 propensity score matching in the total cohort. RESULTS: Among a total of 273 patients in our study, 34 experienced NORP. After 1:2 propensity score matching, rates of respiratory complications and mortality were higher in the ORP group than in the NORP group. However, there was no difference in hospitalization time and time spent in the intensive care unit between the two groups. Compared with ORP patients after matching, the relative risk of mortality in NORP patients was 0.34, and the risk of respiratory distress was 0.47. The mean level of pseudocholinesterase was significantly higher in the NORP group than in the ORP group, while recovery rates were similar between the two groups. CONCLUSION: Although the majority of NORP patients were admitted to the ED with unintentional poisoning and the relative risk of NORP was lower than that for ORP, we concluded that NORP is as critical as ORP. Considerable medical observation and intensive therapeutic approaches are also needed for NORP patients.
Cholinesterases
;
Cohort Studies
;
Emergency Service, Hospital
;
Hospitalization
;
Humans
;
Incidence
;
Intensive Care Units
;
Mortality
;
Organophosphate Poisoning*
;
Organophosphates
;
Pesticides
;
Poisoning*
;
Propensity Score
;
Pseudocholinesterase
;
Toxicology
8.Successful treatment of central retinal artery occlusion using hyperbaric oxygen therapy.
Soo Han KIM ; Yong Sung CHA ; Yoonsuk LEE ; Hyun KIM ; Ie Na YOON
Clinical and Experimental Emergency Medicine 2018;5(4):278-281
Central retinal artery occlusion (CRAO) is considered an ophthalmologic emergency. The prognosis of this disease is very poor. Currently, there is no generally effective therapy available to treat CRAO. Hyperbaric oxygen therapy (HBOT) can increase the volume of oxygen delivered to the ischemic retinal tissue until spontaneous or assisted reperfusion occurs. We report the case of a patient who experienced sudden visual loss due to CRAO that was treated with HBOT. The patient was an 81-year-old woman who presented with CRAO in her right eye (OD). She exhibited “hand motion” visual acuity before treatment. She underwent three sessions of HBOT at a pressure of 2.8 atmospheres absolute, performed over 3 days. After 4 days in hospital, her visual acuity improved to 0.4 (OD) for far vision and 0.5 (OD) for near vision. Her vision was stable without the supply of oxygen; therefore, she was discharged.
Aged, 80 and over
;
Atmosphere
;
Emergencies
;
Female
;
Humans
;
Hyperbaric Oxygenation
;
Ophthalmic Artery
;
Oxygen*
;
Prognosis
;
Reperfusion
;
Retinal Artery Occlusion*
;
Retinal Artery*
;
Retinaldehyde
;
Visual Acuity
9.Relationship between Serum Neuron Specific Enolase Level and Seizure in Patients with Acute Glufosinate Ammonium Poisoning.
Gyo Jin AN ; Yoonsuk LEE ; Yong Sung CHAN ; Hyun KIM
Journal of The Korean Society of Clinical Toxicology 2018;16(1):49-56
PURPOSE: Glufosinate ammonium poisoning can cause seizures, even after a symptom-free period. This study was conducted to evaluate the relationship between serum neuron specific enolase (NSE) level and the occurrence of seizures in patients with acute glufosinate ammonium poisoning. METHODS: For this retrospective observational study, data from patients diagnosed with acute glufosinate ammonium poisoning were collected between January 2016 and June 2016. Serum NSE was measured within 2 hours of arrival at the emergency department. The patients were divided into a seizure group and a non-seizure group. RESULTS: The seizure group included eight of the 15 total patients (53.3%). The serum NSE level was significantly higher in the seizure group than in the non-seizure group (32.4±11.9 ng/mL vs. 19.5±5 ng/mL, p=0.019). The amount of glufosinate ingested and initial and peak serum ammonia levels were significantly higher in the seizure group than in the non-seizure group. There was no significant difference in the area under the curve of the serum NSE level or the initial and peak serum ammonia levels in terms of predicting the occurrence of seizures. CONCLUSION: In acute glufosinate poisoning, initial serum NSE levels may help in prediction of seizures.
Ammonia
;
Ammonium Compounds*
;
Biomarkers
;
Emergency Service, Hospital
;
Herbicides
;
Humans
;
Neurons*
;
Observational Study
;
Phosphopyruvate Hydratase*
;
Poisoning*
;
Retrospective Studies
;
Seizures*
10.Effects of hyperbaric oxygen on graft survival outcomes in composite grafting for amputated fingertip injury
Yoonsuk LEE ; Jae Won HEO ; Jin Sil MOON ; Sug Won KIM ; Jiye KIM
Archives of Plastic Surgery 2020;47(5):444-450
Background:
Fingertip injuries are the most common type of traumatic injury treated at emergency departments and require prompt and adequate interventions for favorable wound survival outcomes. Hyperbaric oxygen (HBO2) therapy is well known for its many positive effects on wound healing. We hypothesized that treatment with HBO2 would improve the graft survival outcomes of amputated fingertip injuries treated with composite grafts.
Methods:
This retrospective observational study included fingertip amputations that were treated between January 2013 and December 2017. A conventional group and an HBO2 therapy group were statistically compared to evaluate the effect of HBO2 treatment. Graft survival was categorized as either success or failure.
Results:
Among 55 cases (digits), 34 digits were conventionally treated, while 21 digits were treated with HBO2. No statistically significant differences were observed between the groups with regard to general characteristics. Among patients with guillotine-type injuries, the composite graft success rate was statistically significantly higher in the group that received HBO2 therapy than in the conventional group (P=0.0337). Overall, the HBO2 group also demonstrated a statistically significantly shorter healing time than the conventional group (P=0.0075). As such, HBO2 treatment facilitates composite graft survival in cases of fingertip injury.
Conclusions
HBO2 treatment was associated with an increased composite graft survival rate in guillotine-type fingertip injuries and reduced the time required for grafts to heal.