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Incidence and case fatality of stroke in Korea, 2011-2020
Jenny Moon(Jenny Moon),Yeeun Seo(Yeeun Seo),Hyeok-Hee Lee(Hyeok-Hee Lee),Hokyou Lee(Hokyou Lee),Fumie Kaneko(Fumie Kaneko ),Sojung Shin(Sojung Shin),Eunji Kim(Eunji Kim),Kyu Sun Yum(Kyu Sun Yum),Young 한국역학회 2024 Epidemiology and Health Vol.46 No.-
Sun Oh Yum,Hyun Ho Kim,Jin Kyu Kim 대한신생아학회 2020 Neonatal medicine Vol.27 No.2
Purpose: Association between hyponatremia and the severity of respiratory symptoms in infants with respiratory syncytial virus (RSV) infection has not yet been studied. This study aimed to compare respiratory symptoms, assessed using the Pediatric Respiratory Score (PRS), in infants with RSV infection, with or without hyponatremia. Methods: RSV-positive patients aged <12 months who were admitted with respiratory symptoms within 7 days of onset at Jeonbuk National University Children’s Hospital from January 2016 to December 2019 were retrospectively analyzed. Each patient was categorized into those with or without hyponatremia (serum sodium concentration of <136 mmol/L). Clinical findings included PRS on the day of admission. Results: The mean±standard deviation age of the 125 patients included in the study was 2.7±3.3 months, and, 20 patients (16.0%) showed hyponatremia. Infants with RSV infection and hyponatremia had lower birth weights, longer hospital stays, and higher blood urea nitrogen level. The C-reactive protein level was significantly higher in the hyponatremic infants, who had higher PRSs. The non-hyponatremia group had more normal PRSs than the hyponatremia group, which had more severe PRSs. After adjustment for age at admission, blood urea nitrogen level (OR, 1.218; 95% CI, 1.023 to 1.451; P<0.05), and PRS grade (OR, 2.885; 95% CI, 1.158 to 7.187; P< 0.05) were identified as independent risk factors. Conclusion: Hyponatremia was strongly associated with respiratory severity in infants with RSV. Therefore, infants admitted with RSV infection who show higher PRS grade need to be evaluated and treated for hyponatremia.
상향류식 바이오비드 공법을 이용한 오,폐수 처리특성 및 부착 생물막의 형태적 특징
염규진 ( Kyu Jin Yum ),이정훈 ( Jeong Hun Lee ),김선미 ( Sun Mi Kim ),최원석 ( Weon Seok Choi ) 한국물환경학회 2002 한국물환경학회지 Vol.18 No.2
The objective of this study was to investigate the treatment efficiency, kinetics, and morphological characteristics of biofilm in upflow Biobead^ⓡ process, a kind of biological aerated filter(BAF). The Biobead^?? system showed high removal rates of COD_Mn, (76∼83%), BOD_5(67∼88%) and SS(71∼91%) for food wastewater with high salt concentration (>4,000㎎/ℓ) under short reaction times(2∼3hrs). Even at aerobic condition, the system had high treatment efficiency for both T-N (51∼63%) and T-P(62∼81%). The removal kinetics of COD_Mn, BOD_5, T-N, T-P, and Cl^- in the Biobead^?? system showed a plug-flow pattern with reaction rate constants(hr^-1) of 0.58, 0.63, 0,30, 0.48, and 0.38 respectively. A backwashing process to remove excess biomass and filtered solids was needed at least once during 22-hour operation at 0.5kg BOD m^-3·d^-1 loading. At the higher loading(1.0kg BOD m^-3·d^-1) the backwashing interval was shorten by 8 hours. The COD, BOD, T-N, and T-P were removed from 43 to 66% only by aerobic biodegradation. The SS was removed over 70% by the filtering of Biobead^?? media in the treatment system. The first one of three serial Biobead reactors showed the highest removal values for COD_α(52.3%), COD_Mn(38.8%), BOD(62.5%), and T-N(40.0%). The SS and T-P had the highest removal values(47.5% and 29.2%) at the second one of the serial reactors. The biofilm had non-homogeneous spatial distribution and the colonies were embedded in the sunk area of the Biobead. The thickness of the biofilm was very thin (5.0∼29.4㎛) compared to the biofilm thickness(200∼300㎛) used in other BAF systems
신동익,채희윤,한정완,Kyu Sun Yum,이성현,이상수,김진현,한호성 충북대학교 동물의학연구소 2023 Journal of Biomedical and Translational Research Vol.24 No.3
Mucosa-associated lymphoid tissue (MALT) lymphoma (ML) is a type of non-Hodgkin’s lymphoma involving MALT, commonly the stomach or salivary glands, although virtually any mucosal site can be affected. ML originates from B cells in the marginal zone of MALT, and is also called extranodal marginal zone B cell lymphoma. It is a slow-growing cancer that usually responds well to treatment. A 59-year-old female presented with a 1-day history of quadriparesis and dysarthria. Up arrival at the hospital, motor power in the right upper and lower extremities was grade 3/5 according to the Medical Research Council scale, while that in the left leg was 4/5. The patient had been diagnosed with gastric ML 1 year prior, and had received antibiotics during the previous 2 weeks. The emergency magnetic resonance imaging of the brain performed at the time of presentation showed multifocal embolic infarction in the cerebral hemisphere bilaterally, which did not have a cardiac origin. Magnetic resonance angiography revealed no stenotic or occlusive lesions. Secondary prophylaxis with daily administration of 300 mg aspirin was prescribed. The patient was discharged with residual right hemiparesis 2 weeks after the onset of symptoms. Herein, we present a rare case of multifocal cerebral infarction in a gastric ML patient.
2급 및 3급 치근이개부 병변에서 합성골이식의 효과에 대한 임상적 및 방사선학적 연구
염규선,김병옥,한경윤,Yum, Kyu-Sun,Kim, Byung-Ok,Han, Kyung-Yoon 대한치주과학회 1993 Journal of Periodontal & Implant Science Vol.23 No.3
The effect of synthetic bone materials was assessed in the patients with pure periodontal class II and III furcation defects. The buccal aspects of the maxillary and mandilular first and second molars were surgically exposed, and synthetic bone materials were interposed between the gingival flap and the furcation defects in the experimental group. The control group were treated without the use of synthetic bone materials by same operator. Probing pocket depth, gingival recession, and loss of attachment, were measured by Michigan O-probe and tooth mobility was evaluated by an electronic mobility tester(Periotest(R), Siemens co. Germany) at preoperation and 3-, 6-, and 12-month postoperation. Standardized radiogrphs were taken at preoperation and 6-month and 12-month postoperation. The postoperative change of clinical parameters and the difference between experimental group and control group were statistically analyzed by Student, t-test. The results were as follows: 1. The probing pocket depth at the 3-, 6-, and 12-month postoperative examination was significantly decreased, compared to that at preoperative examination in both experimental group and control group(P<0.005), but there was no significantly difference between experimental group and control group. 2. The amount of gingival recession at the 3-, 6-, and 12-month postoperative examination was increased, compared to that at the preoperative examination in both experimental and control group(P<0.005). In the case of the class III furcation involvement, the amount of gingival recession at the 3-, 6-, and 12-month postoperative examination was more significantly increased in control group than experimental group(P<0.05). 3. The amount of loss of attachment at the 3-, 6-, and 12-month postoperative examination was significantly decreased, compared to that at the preoperative examination in both experimental and control group in the case of class II furcation involvement, and in experimental group only in the case of furcation III involvement(P<0.005). The amount of loss of attachment at, the 3-, 6-, and 12-month postoperative examination was more significantly decreased in experimental group than control group in the case of the class III furcation involvement(P<0.05), but in the case of class II furcation involvement there was no significant difference between experimental group and control group. 4. The tooth mobility at the 3-, 6-, and 12-month postoperative examination was significantly decreased, compared to that at the preoperative examination in both experimental and control group(P<0.005), but there was no significant difference between experimental group and control group. 5. Radiopacity of furcation area was greatly increased in the experiment group, but there was no radiographic change in the control group.
Han-Yeong Jeong,Jun-Young Chang,Kyu Sun Yum,Jeong-Ho Hong,Jin-Heon Jeong,Min-Ju Yeo,Hee-Joon Bae,Moon-Ku Han,Kiwon Lee 대한뇌졸중학회 2016 Journal of stroke Vol.18 No.3
Background and Purpose The use of decompressive hemicraniectomy (DHC) for the treatment of malignant cerebral edema can decrease mortality rates. However, this benefit is not sufficient to justify its use in elderly patients. We investigated the effects of therapeutic hypothermia (TH) on safety, feasibility, and functional outcomes in elderly patients with malignant middle cerebral artery (MCA) infarcts. Methods Elderly patients 60 years of age and older with infarcts affecting more than two-thirds of the MCA territory were included. Patients who could not receive DHC were treated with TH. Hypothermia was started within 72 hours of symptom onset and was maintained for a minimum of 72 hours with a target temperature of 33°C. Modified Rankin Scale (mRS) scores at 3 months following treatment and complications of TH were used as functional outcomes. Results Eleven patients with a median age of 76 years and a median National Institutes of Health Stroke Scale score of 18 were treated with TH. The median time from symptom onset to initiation of TH was 30.3±23.0 hours and TH was maintained for a median of 76.7±57.1 hours. Shivering (100%) and electrolyte imbalance (82%) were frequent complications. Two patients died (18%). The mean mRS score 3 months following treatment was 4.9±0.8. Conclusions Our results suggest that extended use of hypothermia is safe and feasible for elderly patients with large hemispheric infarctions. Hypothermia may be considered as a therapeutic alternative to DHC in elderly individuals. Further studies are required to validate our findings.
이석 ( Seok Lee ),황호인 ( Ho In Hwang ),염상민 ( Sang Min Yum ),이완식 ( Wan Sik Lee ),박창환 ( Chang Hwan Park ),김현수 ( Hyun Soo Kim ),최성규 ( Sung Kyu Choi ),유종선 ( Jong Sun Rew ) 대한소화기학회 2008 대한소화기학회지 Vol.52 No.1
We present a case of intrapancreatic accessory splenic infarction in a 28-year-old woman. It was discovered during a workup for an acute right epigastric pain. Computed tomography imaging of abdomen demonstrated a hemorrhagic high attenuation with enhancing solid portion in the tail of pancreas. The clinical and radiological differential diagnosis included pancreatic mucinous cystic neoplasm, pancreatic endocrine neoplasm, solid pseudopapillary tumor, ductal adenocarcinoma, and metastasis. A distal pancreatectomy was completed. The microscopic examination revealed heterotopic splenic tissue with infarction and her abdominal pain disappeared. In this case report, we first describe a symptomatic accessory splenic infarction which presented as a hemorrhagic mass in the tail of pancreas mimicking pancreatic neoplasm. (Korean J Gastroenterol 2008;52:48-51)