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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

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Clinical features of gastric adenoma detected within 3 years after negative screening endoscopy in Korea

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Gastroenterology Report 2023年第1期11卷 406-411页

作者： Hyun young kim Department of Internal Medicine Seoul National University Bundang HospitalSeongnam-siGyeonggi-doKorea

Background:Early detection and management of gastric adenoma are important for preventing gastric *** present study aimed to evaluate the predictors of missed gastric adenoma on screening endoscopy in Korea and identify the risk factors associated with interval precancerous gastric ***:All cases of gastric adenomas diagnosed via screening endoscopy between 2007 and 2019 were *** them,those who had undergone endoscopy within 3 years were included in the present *** gastric adenoma was defined as gastric adenoma diagnosed within 3 years after negative screening ***:In total,295 cases of gastric adenoma were *** these,95(32.2%)were missed gastric adenoma cases(mean age,60.6 years;average interval between final and index endoscopies,12.6months);the remaining 200(67.8%)were newly detected adenoma *** analysis revealed thatmale sex,endoscopist experience,observation time,and presence of gastric intestinalmetaplasia(pathologically proven)were associated with missed gastric *** analysis revealed that gastric intestinal metaplasia(odds ratio[OR],2.736;95%confidence interval[CI],1.320–5.667;P=0.007)and shorter observation time of the index screening endoscopy(B,0.011;OR,0.990;95%CI,0.986–0.993;P<0.001)were independent risk factors for missed gastric *** optimal cut-off for the observation time for detecting gastric adenoma was 3.53minutes(area under curve,0.738;95%CI,0.677–0.799;P<0.001).Conclusions:Gastric intestinal metaplasia is an indication of missed gastric ***,careful inspection of gastric mucosa with gastric intestinal metaplasia and proper observation time can lower the possibility of missing the gastric adenoma during screening.

关键词： gastric adenoma screening endoscopy gastric intestinal metaplasia observation time

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Atrial natriuretic peptide signal pathway upregulated in stomach of streptozotocin-induced diabetic mice

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World Journal of Gastroenterology 2010年第1期16卷 48-55页

作者： young-Chul kim Department of Physiology Chungbuk National University College of Medicine

AIM:To investigate atrial natriuretic peptide(ANP) secretion from gastric mucosa and the relationship between the ANP/natriuretic peptide receptor type A (NPR-A)pathway and diabetic gastroparesis. METHODS:Male imprinting control region(ICR)mice (4 wk old)were divided into two groups:control mice, and streptozotocin-induced diabetic *** weeks after injection,spontaneous gastric contraction was recorded by using physiography in control and streptozotocin-induced diabetic *** ANP-positive cells in gastric mucosa and among dispersed gastric epithelial cells were detected by using immunohistochemistry and flow cytometry,*** and natriureticpeptide receptor type A(NPR-A)gene expression in gastric tissue was observed by using the reverse transcriptase polymerase chain reaction. RESULTS:The frequency of spontaneous gastric contraction was reduced from 12.9±0.8 cycles/min in the control group to 8.4±0.6 cycles/min in the diabetic mice(n=8,P<0.05).However,the amplitude of contraction was not significantly affected in the diabetic *** depletion of interstitial cells of Cajal in the gastric muscle layer was observed in the diabetic ***-positive cells were distributed in the gastric mucosal layer and the density index of ANP-positive cells was increased from 20.9±2.2 cells/field in control mice to 51.8±2.9 cells/field in diabetic mice(n=8, P<0.05).The percentage of ANP-positive cells among the dispersed gastric epithelial cells was increased from 10.0%±0.9%in the control mice to 41.2%± 1.0%in the diabetic mice(n=3,P<0.05).ANP and NPR-A genes were both expressed in mouse stomach, and the expression was significantly increased in the diabetic mice. CONCLUSION:These results suggest that the ANP/ NPR-A signaling pathway is upregulated in streptozotocin-induced diabetic mice,and contributes to the development of diabetic gastroparesis.

关键词： Diabetes mellitus Atrial natriuretic peptide Gastric mucosa Gastroparesis

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Some New Inverse-type Hilbert-Pachpatte Integral Inequalities

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Acta Mathematica Sinica,English Series 2004年第1期20卷 57-62页

作者： young Ho kim Department of Applied Mathematics Changwon National UniversityChangwon 641-773Korea

In this paper, some new generalizations of inverse type Hilbert-Pachpatte integral inequalities are proved. The results of this paper reduce to those of Pachpatte (1998, J. Math. Anal. Appl. 226, 166–179) and Zhao an... 详细信息

关键词： Hilbert’s double integral inequality H(?)lder integral inequality Jensen’s inequality Power mean inequality

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Increased incidence of chemoport-related thrombosis in patients with colorectal cancer receiving bevacizumab: A single-institutional experience

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Chinese Journal of Cancer Research 2018年第4期30卷 460-467页

作者： Jwa Hoon kim Jeong Eun kim Yong Sang Hong Sun young kim kyu-pyo kim Ki Eun Choi Ji Hoon Shin Tae Won kim Department of Oncology Asan Medical Center University of Ulsan College of Medicine Department of Radiology Asan Medical Center University of Ulsan College of Medicine

Objective： Chemoport-related thrombosis （CRT） is a serious complication that causes morbidities and interruptsadministration of intravenous cancer therapy. We investigated the incidence and risk of CRT in colorectal cancer（CRC） patients treated with bevacizumab （BEV）.Methods： We retrospectively reviewed 1,534 CRC patients who received chemotherapy with or without BEVusing a chemoport between 2014 and ***： The participants had a median age of 58 （18-85） years, and 60.3% were male. All participants werestratified into three groups： adjuvant chemotherapy （AC）（n=670）, palliative chemotherapy （PC） without BEV（n=356）, and PC with BEV （n=508）. The median follow-up was 20.19 （interquartile range, 14.07-27.19） *** occurred in 3.8% of all patients; incidence of symptomatic and asymptomatic CRT was 2.9% and 0.9%,respectively. CRT occurred more in patients with BEV （5.7%） than in patients without BEV （2.9%, P=0.008）. Thecumulative incidence of CRT in patients administered PC with BEV was significantly higher than that in thoseadministered AC （P=0.011） and there was a trend toward increased CRY in patients administered PC with BEVcompared with those administered PC without BEV （P=0.044）. Multivariate analysis found that BEV treatment wasthe only variable that was significandy associated with CRT （hazard ratio, 2.06; 95% confidence interval, 1.24-3.43;P=0.006）.Conclusions： BEV treatment was significandy associated with increased incidence of CRT in CRC patients.

关键词： Bevacizumab central venous catheters thrombosis colorectal neoplasms

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Traumatic neuroma of remnant cystic duct mimicking duodenal subepithelial tumor:A case report

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World Journal of Clinical Cases 2020年第17期8卷 3821-3827页

作者： Dong-Hwan kim Ji-Ho Park Jin-kyu Cho Jung-Wook Yang Tae-Han kim Sang-Ho Jeong young-Hye kim young-Joon Lee Soon-Chan Hong Eun-Jung Jung young-Tae Ju Chi-young Jeong Ju-Yeon kim Department of Surgery Gyeongsang National University College of MedicineGyeongsang National University HospitalJinju 52727South Korea Department of Pathology Gyeongsang National University College of MedicineGyeongsang National University HospitalJinju 52727South Korea

BACKGROUND Gastrointestinal subepithelial tumors(GSTs),incidentally detected during upper gastrointestinal(GI)endoscopy,may be lesions derived from the GI wall or may be caused by compression from external *** general,traumatic neuroma is a benign nerve tumor that results from postoperative nerve injury,occurring in the bile duct as one of the complications after *** is the first case report demonstrating that neuroma of the cystic duct can be incorrectly perceived as a duodenal subepithelial tumor by compressing the duodenal *** SUMMARY We report the case of a 72-year-old man with traumatic neuroma of the cystic duct after *** tumor was mistaken for a duodenal subepithelial tumor on preoperative upper GI endoscopy and endoscopic ultrasonography due to external compression of the GI *** patient had no symptoms,and his laboratory test results were ***,in a series of follow-up endoscopies,the tumor was found to have grown in size,so it was surgically *** lesion was completely removed by laparoscopic endoscopic cooperative *** patient was discharged on postoperative day 7 without *** Traumatic neuroma of the cystic duct can be mistaken for GSTs in GI endoscopy.

关键词： Case report Neuroma Tumor Endoscopy Laparoscopy Cholecystectomy

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Complete resection of a huge hypervascular inflammatory myofibroblastic tumor in right hemithorax after embolization

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World Journal of Pediatrics 2016年第4期12卷 498-500页

作者： kyu-Nam kim Dong-Won kim Department of Anesthesiology and Pain Medicine Hanyang University HospitalRepublic of Korea

Background:Inflammatory myofibroblastic tumor(IMT)is a rare and mostly benign tumor that has the possibility of malignant ***:Radiological findings revealed a huge mass that filled most of the right hemithorax of a 17-month-old female *** extirpation was stopped due to massive bleeding and limited exposure of the *** was conducted to obstruct the arteries feeding the *** resection was ***:Histopathologic examination led to the diagnosis of *** recovery was ***:Hypervascularity of IMT should be *** embolization can be effective to reduce intraoperative blood loss and facilitate the surgical procedure.

关键词： embolization granuloma mediastinal neoplasms plasma cell

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Network-Aided Intelligent Traffic Steering in 5G Mobile Networks

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Computers, Materials & Continua 2020年第10期65卷 243-261页

作者： Dae-young kim Seokhoon kim School of Computer Software Daegu Catholic UniversityGeyongsan38430Korea Department of Computer Software Engineering Soonchunhyang UniversityAsan31538Korea

Recently,the fifth generation(5G)of mobile networks has been deployed and various ranges of mobile services have been *** 5G mobile network supports improved mobile broadband,ultra-low latency and densely deployed massive *** allows multiple radio access technologies and interworks them for services.5G mobile systems employ traffic steering techniques to efficiently use multiple radio access ***,conventional traffic steering techniques do not consider dynamic network conditions *** this paper,we propose a network aided traffic steering technique in 5G mobile network architecture.5G mobile systems monitor network conditions and learn with network *** a machine learning algorithm such as a feed-forward neural network,it recognizes dynamic network conditions and then performs traffic *** proposed scheme controls traffic for multiple radio access according to the ratio of measured ***,it can be expected to improve traffic steering *** performance of the proposed traffic steering scheme is evaluated using extensive computer simulations.

关键词： Mobile network 5G traffic steering machine learning MEC

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A Data Download Method from RSUs Using Fog Computing in Connected Vehicles

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Computers, Materials & Continua 2019年第5期59卷 375-387页

作者： Dae-young kim Seokhoon kim School of Information Technology Daegu Catholic UniversityGyeongsan-si 38430Republic of Korea Department of Computer Software Engineering Soonchunhyang UniversityAsan-si 31538Republic of Korea

Communication is important for providing intelligent services in connected *** must be able to communicate with different places and exchange information while *** service operation,connected vehicles frequently attempt to download large amounts of *** can request data downloading to a road side unit(RSU),which provides infrastructure for connected *** RSU is a data bottleneck in a transportation system because data traffic is concentrated on the ***,it is not appropriate for a connected vehicle to always attempt a high speed download from the *** the mobile network between a connected vehicle and an RSU has poor connection quality,the efficiency and speed of the data download from the RSU is *** problem affects the quality of the user ***,it is important for a connected vehicle to connect to an RSU with consideration of the network conditions in order to try to maximize download *** proposed method maximizes download speed from an RSU using a machine learning *** collect and learn from network data,fog computing is used.A fog server is integrated with the RSU to perform *** the algorithm recognizes that conditions are not good for mass data download,it will not attempt to download at high ***,the proposed method can improve the efficiency of high speed *** conclusion was validated using extensive computer simulations.

关键词： Connected car fog computing data download DSRC machine learning

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Adaptive Data Transmission Method According to Wireless State in Long Range Wide Area Networks

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Computers, Materials & Continua 2020年第7期64卷 1-15页

作者： Seokhoon kim Dae-young kim Department of Computer Software Engineering Soonchunhyang UniversityAsan-si31538Korea School of Computer Software Daegu Catholic UniversityGyeongsan-si38430Korea

The Internet of Things(IoT)has enabled various intelligent services,and IoT service range has been steadily extended through long range wide area communication technologies,which enable very long distance wireless data ***-nodes are connected to a gateway with a single *** consume very low-power,using very low data rate to deliver *** long transmission time is consequently needed for each data packet transmission in long range wide area networks,data transmission should be efficiently ***,this paper proposes a multicast uplink data transmission mechanism particularly for bad network *** delay will be increased if only retransmissions are used under bad network ***,employing multicast techniques in bad network conditions can significantly increase packet delivery ***,retransmission can be reduced and hence transmission efficiency ***,the proposed method adopts multicast uplink after network condition *** predict network conditions,the proposed method uses a deep neural network *** proposed method performance was verified by comparison with uplink unicast transmission only,confirming significantly improved performance.

关键词： IoT wide area communication machine learning uplink transmission.

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