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Muhammad Shafique, Reeho Kim, Kwon Kyung-Ho
This field study elaborates the role of grass swale in the management of stormwater in an urban parking lot. Grass swale was constructed by using different vegetations and local soil media in the parking lot of Mapu-gu Seoul, Korea. In this study, rainfall runoff was first retained in soil and the vegetation layers of the grass swale, and then infiltrated rainwater was collected with the help of underground perforated pipe, and passed to an underground storage trench. In this way, grass swale detained a large amount of rainwater for a longer period of time and delayed peak discharge...
March 16, 2018: International Journal of Environmental Research and Public Health
Chun-Chao Zhu, Tae-Han Kim, Felix Berlth, Shin-Hoo Park, Yun-Suhk Suh, Seong-Ho Kong, Hyuk-Joon Lee, Hui Cao, Han-Kwang Yang
BACKGROUND: Delayed gastric emptying is one of the most disturbing complications of pylorus-preserving gastrectomy (PPG) and it increases hospital stay. We investigated the clinical outcome of intraoperative manual dilatation of the pylorus as a preventive method of pyloric spasm after PPG. MATERIALS AND METHODS: We reviewed gastric cancer patients who underwent PPG between January 2014 and December 2016 at Seoul National University Hospital by a single surgeon...
March 13, 2018: Gastric Cancer
Jin Hong Lim, Jae Uk Chong, Sung Hoon Kim, Seung Woo Park, Jin Sub Choi, Woo Jung Lee, Kyung Sik Kim
Backgrounds/Aims: Routine bile duct resection as part of the typical oncological resection for patients with advanced gallbladder cancer remains controversial with regard to, ultimately, curative value. The aim of this study was to compare oncological outcomes for patients undergoing surgery for gallbladder cancer with or without bile duct resection. Methods: We recruited, for the purpose of this study, all patients who underwent surgical resection for T2 and T3 gallbladder cancer at Severance hospital, Seoul, Korea, during the period January 2000 and December of 2011...
February 2018: Annals of Hepato-Biliary-Pancreatic Surgery
Yunsoo Kim, Ho Ran Park
PURPOSE: This study aimed to construct and test a hypothetical model of the quality of life of school-age children with asthma based on the health-related quality of life model by Wilson and Cleary. METHODS: Data were collected from 205 pairs of pediatric outpatients diagnosed with asthma and their parents in Seoul and Gyeonggi-do from July 2016 to April 2017. The exogenous variables were asthma knowledge, number of accompanying allergic diseases, and social support...
February 2018: Journal of Korean Academy of Nursing
Han-Gil Jeong, Beom Joon Kim, Jay Chol Choi, Keun-Sik Hong, Mi Hwa Yang, Cheolkyu Jung, Moon-Ku Han, Hee-Joon Bae
BACKGROUND AND PURPOSE: The majority of ischemic stroke patients receiving endovascular recanalization therapy (EVT) experience variable changes of neurological severities during the hyperacute period. We hypothesized that the National Institutes of Health Stroke Scale (NIHSS) score after EVT is a better prognostic factor compared with the initial NIHSS score or revascularization status. METHODS: We identified 566 stroke patients who received EVT at Seoul National University Bundang Hospital between April 2008 and December 2015...
March 13, 2018: Stroke; a Journal of Cerebral Circulation
Beomsu Shin, Boksoon Chang, Hojoong Kim, Byeong-Ho Jeong
BACKGROUND: Interventional bronchoscopy is considered an effective treatment option for malignant central airway obstruction (MCAO). However, there are few reports of interventional bronchoscopy in patients with MCAOs due to extra-pulmonary malignancy. Therefore, the objective of this study was to investigate treatment outcomes and prognostic factors for bronchoscopic intervention in patients with MCAO due to extra-pulmonary malignancy. METHODS: We retrospectively analyzed consecutive 98 patients with MCAO due to extra-pulmonary malignancy who underwent interventional bronchoscopy between 2004 and 2014 at Samsung Medical Center (Seoul, Korea)...
March 13, 2018: BMC Pulmonary Medicine
Ji Yeon Park, Yong Jin Kim
BACKGROUND: Percentage of excess weight loss (%EWL) is the most common metric used after bariatric surgery. However, there has been consistent argument against its use since it varies significantly by initial body mass index (BMI). This study aimed to validate the newly suggested percentage of alterable weight loss (%AWL) metric in Korean patients. METHODS: A retrospective review of the prospectively established database at Soonchunhyang University Seoul Hospital identified 165 patients who underwent primary laparoscopic Roux-en-Y gastric bypass (RYGB) and had at least 2-year follow-up weight loss results after surgery...
March 12, 2018: Obesity Surgery
Jihye Park, Hyun Jung Lee, Soo Jung Park, Hyuk Hur, Byung Soh Min, Jae Hee Cheon, Tae Il Kim, Nam Kyu Kim, Won Ho Kim
PURPOSE: Self-expandable metallic stents (SEMS) may be used in acute, obstructing, left-sided colorectal cancer (CRC) to avoid high-risk emergency surgery. However, the data regarding the long-term effects of SEMS as a bridge to surgery are limited and contradictory. Our aim is to analyze the long-term oncological outcomes of SEMS compared with surgery. METHODS: Between January 2006 and November 2013, a total of 855 patients with stage III CRC were regularly followed at the CRC clinic of Severance Hospital, Seoul, Korea...
March 12, 2018: International Journal of Colorectal Disease
Yeongmin Kim, Insung Lee, Chungwan Lim, James Farquhar, Sang-Mook Lee, Hyoungbum Kim
This study incorporated stable isotope analyses with chemical analyses to determine the origin and migration of sulfur sources in East Asia, and these findings were compared with our decadal research from 2000 to 2001 and 2002 to 2003. The multiple sulfur isotope composition (32 S,33 S and34 S) of the dissolved sulfate in precipitation was first measured from 2011 to 2013 in Seoul, South Korea. The δ34 Snss values were -1.1‰ to 7.9‰ (avg. 3.6‰), strongly suggesting that sulfur derived from the combustion of Chinese coal is the predominant source of sulfate in the Seoul region...
March 7, 2018: Environmental Pollution
Minwoo Cho, Jee Hyun Kim, Hyoun Joong Kong, Kyoung Sup Hong, Sungwan Kim
PURPOSE: The colonoscopy adenoma detection rate depends largely on physician experience and skill, and overlooked colorectal adenomas could develop into cancer. This study assessed a system that detects polyps and summarizes meaningful information from colonoscopy videos. METHODS: One hundred thirteen consecutive patients had colonoscopy videos prospectively recorded at the Seoul National University Hospital. Informative video frames were extracted using a MATLAB support vector machine (SVM) model and classified as bleeding, polypectomy, tool, residue, thin wrinkle, folded wrinkle, or common...
March 8, 2018: International Journal of Colorectal Disease
Ho Sung Kim, Jung-Ah Choi, Jongmin Lee
According to the reports presented at the second Asian Radiology Forum (ARF) 2016, organized by the Korean Society of Radiology (KSR) during the Korean Congress of Radiology (KCR) in September 2016 in Seoul, there is an increasing need for the Asian-Oceanian Society of Radiology (AOSR) and its member societies to promote radiology together in the Asian-Oceanian region. In ARF 2016, the national delegates of the Asian-Oceanian radiological partner societies primarily discussed their societies' activities and contributions in international and regional societies including AOSR, expectations for AOSR, recommendations and suggestions for AOSR, and their societies' support of AOSR...
March 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
Jeonghoon Kim, Eunsun Lee, Kiyoung Lee, KyooSang Kim
Introduction: Secondhand smoke (SHS) incursion can occur in units of multi-unit housing (MUH). The purpose of this study was to determine the relationship between SHS incursion and allergic symptoms in children living in MUH without smokers. Methods: We conducted a cross-sectional study from May to September 2015 in Seoul, Korea. Children were recruited from elementary schools, kindergartens, and daycare centers. In total, 16676 children between 1 and 13 years of age living in MUH without smokers were included in the analysis...
March 6, 2018: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
Shehab A Aly, Doha Alyan, Mona S Fayed, Maged S Alhammadi, Yehya A Mostafa
AIM: The objective of the present study was to investigate success rates and associated factors affecting temporary anchorage device (TAD) failure in different biomechanical applications. METHODS: A total of 180 TADs were used as a part of 82 patients' treatment plan (24 males and 58 females); their mean age was 21.41 years. Three types of TADs were used: 50 (3M ESPE, Neuss, Germany), 56 (Bone screw; Jeil Medical, Seoul, Korea), and 74 (Morelli, Sorocaba, Brazil)...
March 6, 2018: Journal of Investigative and Clinical Dentistry
Hye-Nan Park, Young-Jun Lim, Won-Jin Yi, Jung-Suk Han, Seung-Pyo Lee
PURPOSE: The aim of this study was to design an intraoral environment simulator and to assess the accuracy of two intraoral scanners using the simulator. MATERIALS AND METHODS: A box-shaped intraoral environment simulator was designed to simulate two specific intraoral environments. The cast was scanned 10 times by Identica Blue (MEDIT, Seoul, South Korea), TRIOS (3Shape, Copenhagen, Denmark), and CS3500 (Carestream Dental, Georgia, USA) scanners in the two simulated groups...
February 2018: Journal of Advanced Prosthodontics
Jin Joo Park, Sun-Hwa Kim, Si-Hyuck Kang, Chang-Hwan Yoon, Young-Seok Cho, Tae-Jin Youn, In-Ho Chae, Dong-Ju Choi
BACKGROUND: The optimal duration of β-blocker therapy in patients with acute myocardial infarction (AMI) is unknown. We aimed to evaluate the late effect of β-blockers in patients with AMI. METHODS AND RESULTS: We enrolled all consecutive patients who presented with AMI at Seoul National University Bundang Hospital, between June 3, 2003 and February 24, 2015. The primary end point was 5-year all-cause mortality, depending on the use of β-blockers at discharge, 1 year after AMI, and 3 years after AMI...
March 3, 2018: Journal of the American Heart Association
Jihye Park, Jae Hyun Kim, Yehyun Park, Soo Jung Park, Jae Hee Cheon, Won Ho Kim, Ji Soo Park, Justin Y Jeon, Tae Il Kim
BACKGROUND AND AIM: High heart rate is an independent predictor of total cancer incidence and all-cause mortality in patients with cancer. We aimed to evaluate the impact of resting heart rate on the recurrence of colorectal polyp, using long-term surveillance follow-up data of colorectal cancer survivors. METHODS: Three hundred patients were selected from the colorectal cancer survivor cohort of Severance Hospital, Seoul, Korea. Resting heart rate, physical activity, and body composition analysis at the time of 5-year survival, and clinical data including colonoscopy surveillance results were collected for mean follow-up duration of 8 years...
2018: PloS One
Joshua Osowicki, Johan Vekemans, David C Kaslow, Martin H Friede, Jerome H Kim, Andrew C Steer
While progress towards a Group A Streptococcus (GAS) vaccine has been stalled by a combination of scientific, regulatory, and commercial barriers, the problem persists. The high and globally-distributed burden of disease attributable to GAS makes vaccination an imperative global public health goal. Advances across a range of scientific disciplines in understanding GAS diseases have made the goal a realistic one and focused attention on the need for coordinated global action. With a view to accelerating GAS vaccine development, the World Health Organization (WHO) and the International Vaccine Institute (IVI) convened a global stakeholder consultation on the 12th and 13th of December 2016, in Seoul, South Korea...
February 26, 2018: Vaccine
Jung-Whan Chon, Kun-Ho Seo, Dongryeoul Bae, Ji-Hee Park, Saeed Khan, Kidon Sung
Clostridium perfringens causes diarrhea and other diseases in animals and humans. We investigated the prevalence, toxin gene profiles, and antibiotic resistance of C. perfringens isolated from diarrheic and non-diarrheic dogs in two animal hospitals in Seoul, South Korea. Fecal samples were collected from clinically diarrheic (DD; n= 49) and non-diarrheic dogs (ND; n= 34). C. perfringens was isolated from 31 out of 49 DD (63%) and 21 out of 34 ND dogs (62%). All strains were positive for the α toxin gene, but not for the β , ε , and ι toxin genes; therefore, all the strains were identified as type A C...
February 27, 2018: Journal of Veterinary Science
Jin-A Park, A M Abd El-Aty, Weijia Zheng, Seong-Kwan Kim, Sang-Hyun Cho, Jeong-Min Choi, Ahmet Hacımüftüo, Ji Hoon Jeong, Jing Wang, Jae-Han Shim, Ho-Chul Shin
A chromatographic method involving a single run was validated for the quantification of clanobutin, dichlorvos, and naftazone in products of animal origin. Pork, beef, chicken, milk, and egg samples were extracted with a solution of 0.1% formic acid in acetonitrile, defatted with n-hexane, centrifuged, and filtered prior to analysis using liquid chromatography-tandem mass spectrometry (LC-/MS/MS). The analytes were separated on a C18 column using a solution of 0.1% formic acid and 10 mM ammonium formate (A) and acetonitrile (B) as the mobile phase...
June 30, 2018: Food Chemistry
Hyunwoo Kim, Hye Mi Seo, Ji Young Kim, Miyeon Kim
PURPOSE: Segmental bioimpedance analysis (BIA) can identify fluid volume changes in the arms of patients on hemodialysis (HD) after vascular access surgery. We investigated whether the difference in fluid volumes between the arms of the patients using segmental BIA is associated with vascular access outcome. METHODS: Body composition measurements were taken for 127 patients on HD with segmental, multi-frequency BIA equipment (InBody 1.0, Biospace Co. Ltd, Seoul, Korea)...
February 23, 2018: International Urology and Nephrology
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