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Prolapse gastropathy syndrome may be a predictor of pathologic acid reflux

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World Journal of Gastroenterology 2008年第36期14卷 5601-5605页

作者： Jin-Soo kim Hyung-Keun kim Young-Seok Cho Hiun-Suk Chae byung-wook kim Jin-Il kim Sok-Won Han Kyu-Yong Choi Department of Internal Medicine College of Medicine The Catholic University of Korea Uijeongbu St. Mary's Hospital Gyeonggi-do 480-717 South Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Uijeongbu St. Mary’s Hospital Gyeonggi-do 480-717 South Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Our Lady of Mercy Hospital Gyeonggi-do 403-720 South Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Yeoeuido St. Mary’s Hospital Seoul 150-713 South Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Holy Family Hospital Gyeonggi-do 420-717 South Korea

AIM： To assess the occurrence of gastric acid reflux into the esophagus in endoscopically confirmed prolapse gastropathy syndrome （PGS）. METHODS： Using ambulatory esophageal pH measurement （BRAVOTM wireless esophageal pH monitoring system）, twenty-six patients with PGS were compared with twenty-one patients with erosive esophagitis （EE） as controls. We assessed several reflux parameters, including the percentage of total time at pH 〈 4, and the DeMeester score. RESULTS： There were no statistical differences between the PGS group and the EE group as to mean age, sex ratio and pH recording time. The EE group showed more severe reflux than the PGS group, as evaluated in terms of the longest duration of reflux, the number of reflux episodes, the number of reflux episodes lasting 〉 5 min, the total time with pH 〈 4 during acid reflux episodes, and the DeMeester score, but none of these parameters showed statistically significant difference. Although 53.8% （14/26） of the PGS group and 76.2% （16/22） of the EE group demonstrated pathologic acid reflux （DeMeester score 〉 14.72）, there was no statistically significant difference between the two groups in the incidence of pathologic acid reflux （P = 0.11）. CONCLUSION： There was no statistically significant difference in pathologic acid reflux between the PGS and EE group. These data suggest that endoscopically diagnosed PGS might be a predictor of pathologic acid reflux.

关键词： Prolapse gastropathy syndrome Pathologic acid reflux Erosive esophagitis Ambulatory esophageal pH monitoring Retching

Extraction and clipping repair of a chicken bone penetrating the gastric wall

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World Journal of Gastroenterology 2008年第12期14卷 1955-1957页

作者： Jin-Soo kim Hyung-Keun kim Young-Seok Cho Hiun-Suk Chae Chang-Whan kim byung-wook kim Sok-Won Han Kyu-Yong Choi Department of Internal Medicine College of Medicine The Catholic University of Korea Uijeongbu St. Mary's Hospital Gyeonggi-do 480-717 Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Holy Family Hospital Gyeonggi-do 420-717 Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Our lady of Mercy Hospital Gyeonggi-do 420-717 Korea

We report a case of gastric penetration caused by accidental ingestion of a chicken bone in a 42-year old woman with a partially wearing denture. Three days ago, she accidentally swallowed several lumps of poorly-chewed chicken. Physical examination disclosed mild tenderness in the periumbilical area. Abdominal Computed tomography (CT) showed a suspicious penetration or perforation of the stomach wall measuring about 3 cm, by a linear radiopaque material at the lesser curvature of the antrum. The end of a chicken bone was very close to but did not penetrate the liver. Endoscopic examination revealed a chicken bone that penetrated into the prepyloric antrum. The penetrating chicken bone was removed with grasping forceps. Five endoscopic clips were applied immediately at the removal site and the periumbilical pain resolved promptly. After removal of the chicken bone, the patient was treated with conservative care for three days, after which she was completely asymptomatic and discharged without complication. To treat gastric penetration by a foreign body, endoclipping can be a useful method in patients with no signs or symptoms of peritoneal irritation.

关键词： Gastric penetration Chicken bone Hemoclip

Endoscopic band ligation and endoscopic hemoclip placement for patients with Mallory-Weiss syndrome and active bleeding

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World Journal of Gastroenterology 2008年第13期14卷 2080-2084页

作者： Young-Seok Cho Hiun-Suk Chae Hyung-Keun kim Jin-Soo kim byung-wook kim Sung-Soo kim Sok-Won Han Kyu-Yong Choi Department of Internal Medicine Uijeongbu St. Mary's Hospital The Catholic University of Korea Ujeongbu 480-717 Korea Department of Internal Medicine Our Lady Mercy Hospital The Catholic University of Korea Bupyeong 403720 Korea Department of Internal Medicine Uijeongbu St. Mary’s Hospital The Catholic University of Korea Ujeongbu 480-717 Korea Department of Internal Medicine Holy Family Hospital The Catholic University of Korea Bucheon 420717 Korea

AIM: To compare the hemostatic efficacy and safety of two mechanical endoscopic methods: endoscopic band ligation (EBL) and endoscopic hemoclip placement (EHP) in patients with actively bleeding Mallory-Weiss syndrome (MWS). METHODS: A prospective randomized study to compare the efficacy and safety of EHP with EBL was performed from January 2002 to August 2005. Forty-one patients with active bleeding from MWS were treated with EHP (n = 21) or EBL (n = 20). RESULTS: There were no significant differences between groups with respect to clinical and endoscopic characteristics. The mean number of hemoclips applied was 3.2 ± 1.5 and the mean number of bands applied was 1.2 ± 0.4. Primary hemostasis was achieved in all patients. Recurrent bleeding was observed in one patient from the EHP group and two from the EBL group. Patients with recurrent bleeding were treated by the same modality as at randomization and secondary hemostasis was achieved in all. There were no significant differences between the two groups in total transfusion amount or duration of hospital stay. No complications or bleeding-related death resulted. CONCLUSION: EHP and EBL are equally effective and safe for the management of active bleeding in patients with Mallory-Weiss syndrome, even in those with shock or comorbid diseases.

关键词： Mallory-Weiss syndrome Hemostasis Endoscopic band ligation Endoscopic clipping

A squamous metaplasia in a gastric ulcer scar of the antrum

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World Journal of Gastroenterology 2008年第8期14卷 1296-1298页

作者： Young-Seok Cho Jin-Soo kim Hyung-Keun kim Jeong-Seon Ji byung-wook kim Hiun-Suk Chae Sok-Won Han Kyu-Yong Choi In-Sik Chung Department of Internal Medicine College of Medicine The Catholic University of Korea Uijeongbu St. Mary's Hospital Gyeonggi-do 480-717 Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Our Lady of Mercy Hospital Gyeonggi-do Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Holy Family Hospital Gyeonggi-do Korea Department of Internal Medicine College of Medicine The Catholic University of Korea Kangnam St. Mary’s Hospital Seoul Korea

An 81-year-old man presented with epigastric pain and weight loss for one month. He had a past history of pulmonary tuberculosis, 10 years ago. We performed a gastroscopy, which showed a linear depressed whitish gastric ulcer scar (0.8 cm in length) in the posterior wall of the prepyloric antrum. The result of biopsy was reported as squamous epithelium. Immunohistochemical staining using an antibody to high molecular weight cytokeratin (HMC) revealed positive staining in the squamous epithelium. Two years later, the lesion was followed up. The lesion remained at same site endoscopically, but no squamous epithelium could be seen microscopically.

关键词： Squamous metaplasia Gastric ulcer scar High molecular weight cytokeratin

Dual-priming oligonucleotide-based multiplex PCR using tissue samples in rapid urease test in the detection of Helicobacter pylori infection

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World Journal of Gastroenterology 2014年第21期20卷 6547-6553页

作者： Woo Chul Chung Sung Hoon Jung Jung Hwan Oh Tae Ho kim Dae Young Cheung byung wook kim Sung Soo kim Jin Il kim Eun Young Sin Department of Internal Medicine the Catholic University of KoreaSeoul 130-709South Korea The Research Institute of St. Vincent Hospital the Catholic University of KoreaSuwon 442-723South Korea

AIM: To investigate whether tissue samples processed by the rapid urease test (RUT) kit are suitable for dual-priming oligonucleotide-based multiplex polymerase chain reaction (DPO-PCR) to detect Helicobacter pylori (... 详细信息

关键词： Helicobacter pylori Diagnosis Dual-priming oligonucleotide-based multiplex polymerase chain reaction

Photonic structures in radiative cooling

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Light(Science & Applications) 2023年第7期12卷 1187-1215页

作者： Minjae Lee Gwansik kim Yeongju Jung Kyung Rok Pyun Jinwoo Lee byung-wook kim Seung Hwan Ko Applied Nano and Thermal Science Lab Department of Mechanical EngineeringSeoul National University1 Gwanak-roGwanak-guSeoul 08826South Korea Electronic Device Research Team Hyundai Motor Group37Cheoldobangmulgwan-roUiwang-siGyeonggi-do 16082South Korea E-drive Materials Research Team Hyundai Motor Group37Cheoldobangmulgwan-roUiwang-siGyeonggi-do 16082South Korea Department of Mechanical Robotics and Energy EngineeringDongguk University30 pildong-ro 1-gilJung-guSeoul 04620South Korea. Department of Civil Engineering and Engineering Mechanics Columbia UniversityNew YorkNY 10027USA. Institute of Advanced Machinery and Design(SNU-IAMD)/lnstitute of Engineering Research Seoul National University1 Gwanak-roGwanak-guSeoul 08826South Korea

Radiative cooling is a passive cooling technology without any energy consumption,compared to conventional cooling technologies that require power sources and dump waste heat into the *** decades,many radiative cooling studies have been introduced but its applications are mostly restricted to nighttime use ***,the emergence of photonic technologies to achieves daytime radiative cooling overcome the performance *** example,broadband and selective emissions in mid-IR and high reflectance in the solar spectral range have already been *** review article discusses the fundamentals of thermodynamic heat transfer that motivates radiative *** photonic structures such as multilayer,periodical,random;derived from nature,and associated design procedures were thoroughly *** integration with new functionality significantly enhances the effciency of radiative cooling technologies such as colored,transparent,and switchable radiative cooling applications has been *** commercial applications such as reducing cooling loads in vehicles,increasing the power generation of solar cells,generating electricity,saving water,and personal thermal regulation are also ***,perspectives on radiative cooling and emerging issues with potential solution strategies are discussed.

关键词： radiative overcome transparent

Incorporation of Ionic Conductive Polymers into Sulfide Electrolyte-Based Solid-State Batteries to Enhance Electrochemical Stability and Cycle Life

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Energy & Environmental Materials 2024年第6期7卷 4-12页

作者： Juhyoung kim Woonghee Choi Seong-Ju Hwang Dong wook kim Advanced Materials Division Korea Research Institute of Chemical Technology(KRICT)Daejeon 34114Korea Department of Material Science and Engineering Yonsei UniversitySeoul 03722Korea Department of Material Science and Engineering Seoul National UniversitySeoul 08826Korea Advanced Materials and Chemical Engineering University of Science and Technology(UST)Daejeon 34113Korea

Sulfide-based inorganic solid electrolytes are promising materials for high-performance safe solid-state *** high ion conductivity,mechanical characteristics,and good processability of sulfide-based inorganic solid electrolytes are desirable properties for realizing high-performance safe solid-state batteries by replacing conventional liquid ***,the low chemical and electrochemical stability of sulfide-based inorganic solid electrolytes hinder the commercialization of sulfide-based safe solid-state ***,the instability of sulfide-based inorganic solid electrolytes is intensified in the cathode,comprising various *** this study,carbonate-based ionic conductive polymers are introduced to the cathode to protect cathode materials and suppress the reactivity of sulfide *** instruments,including electrochemical spectroscopy,X-ray photoelectron spectroscopy,and scanning electron microscopy,confirm the chemical and electrochemical stability of the polymer electrolytes in contact with sulfide-based inorganic solid ***-based solid-state cells show stable electrochemical performance over 100 cycles when the ionic conductive polymers were applied to the cathode.

关键词： composite cathode electrochemical stability ionic conductive polymer solid-state battery sulfide solid electrolyte

New anti-mesenteric delta-shaped stapled anastomosis: Technical report with short-term postoperative outcomes in patients with Crohn’s disease

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2592-2601页

作者： Jong Lyul Lee Yong Sik Yoon Hyun Gu Lee Young Il kim Min Hyun kim Chan wook kim In Ja Park Seok-byung Lim Chang Sik Yu Division of Colon and Rectal Surgery Department of SurgeryUniversity of Ulsan College of MedicineAsan Medical CenterSeoul 05505South Korea Department of Surgery Gangdong Kyung Hee University HospitalSeoul 05278South Korea

BACKGROUND Medical treatment for Crohn’s disease(CD)has continuously improved,which has led to a decrease in surgical recurrence *** these advancements,25%of patients will undergo repeat intestinal *** of CD com-monly occurs on the mesentery side of the anastomosis *** To compare the new anti-mesenteric side-to-side delta-shaped stapled anasto-mosis(DSA)with the conventional stapled functional end-to-end anastomosis(CSA).METHODS This retrospective study included CD patients who underwent ileo-ileal or ileo-colic anastomosis between January 2020 and December *** DSA technique employed a stapler to maintain the concept of anti-mesentery side-to-side ana-stomosis by performing a 90°vertical closure of the open window compared with the CSA *** the corner where the open window is closed,the DSA avoids forming a pouch and creates an anastomosis resembling a delta shape within the intestinal *** compared demographics,preoperative condition,operative findings,and operative outcomes for the two *** The study included 175 patients,including 92 in the DSA group and 83 in the CSA *** two groups were similar in baseline characteristics,preoperative medical treatment,and operative findings except for the Montreal classification *** 30-days postoperative complication rate was signi-ficantly lower in the DSA group compared with the CSA group(16.3%vs 32.5%,P=0.009).Ileus incidence was significantly lower in the DSA group than in the CSA group(4.3%vs 14.5%,P=0.033),and the hospital stay was shorter in the DSA group than in the CSA group(5.67±1.53 days vs 7.39±3.68 days,P=0.001).CONCLUSION The DSA technique was feasible and showed comparable postoperative outcomes with lower short-term complic-ations compared with the CSA *** studies on CD recurrence and long-term complications are warranted.

关键词： Crohn’s disease Surgery Anastomosis Complication Recurrence

Grasper type scissors for endoscopic submucosal dissection of gastric epithelial neoplasia

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World Journal of Gastroenterology 2013年第37期19卷 6221-6227页

作者： Woo-Chul Chung byung-wook kim Chul-Hyun Lim Tae-Ho kim Jae-Myung Park Joon-Sung kim Division of Gastroenterology Department of Internal MedicineSuwon St.Vincent’s HospitalThe Catholic University of Korea Division of Gastroenterology Department of Internal MedicineIncheon St.Mary’s HospitalThe Catholic University of Korea Division of Gastroenterology Department of Internal MedicineSeoul St.Mary’s HospitalThe Catholic University of Korea Division of Gastroenterology Department of Internal MedicineBucheon St.Mary’s HospitalThe Catholic University of Korea

AIM:To evaluate the efficacy and safety of grasper type scissors(GTS)for endoscopic submucosal dissection(ESD)of gastric epithelial ***:The study was performed by 4 endoscopists in 4 institutions affiliated to The Catholic University of *** was performed in 76 consecutive patients with gastric epithelial neoplasia by using the GTS(37 patients)or the hook knife plus coagrasper(HKC)(39 patients).The complete resection rate,complication rate,total time elapsed and elapsed time per square centimeter of the dissected specimen were analyzed between the GTS and HKC ***:The mean age of the GTS group was 62.3±11.4 years and mean age of the HKC group was 65.6±10.1 *** adenocarcinoma was found in32.4%in the GTS group and 33.3%in the HKC *** procedures were performed without interruption in every case in both *** en bloc resection rates of both groups were 100%.The total time elapsed during the procedure was 44.54±21.72 min in the GTS group and 43.77±21.84 min in the HKC group(P=0.88)and the time elapsed per square centimeter of the resected lesion was 7.53±6.35 min/cm2in the GTS group and 6.92±5.93 min/cm2in the HKC group(P=0.66).The overall complication rate was not significantly different between the two ***:GTS is a safe and effective device for ESD compared with *** can be performed with GTS alone,which can reduce the costs for ESD.

关键词： Gastric epithelial neoplasia Endoscopic submucosal dissection Grasper type scissors Hook knife Coagrasper