Search results for: Dong Ho Lee

Items from 1 to 20 out of 462 results

article

Efficacy of Tegoprazan‐Containing Sequential Eradication Treatment Compared to Esomeprazole‐Containing Sequential Eradication of Helicobacter pylori in South Korea, a Region With High Antimicrobial Resistance: A Prospective, Randomized, Single Tertiary Center Study

Jung Won Lee, Nayoung Kim, Jongchan Lee, So Young Jo, more

Background Treatment with potassium‐competitive acid blockers has shown acceptable efficacy in Helicobacter pylori eradication. In regions like Korea, where the clarithromycin resistance rate is high, alternative combinations like non‐bismuth quadruple therapies have shown favorable results. This study compared the outcomes of sequential eradication therapy with new potassium‐competitive acid blocker...

article

Abbreviated MRI for Secondary Surveillance of Recurrent Hepatocellular Carcinoma After Presumed Curative Treatment

Sun Kyung Jeon, Dong Ho Lee, Bo‐Yun Hur, Sae‐Jin Park, more

Journal of Magnetic Resonance Imaging > 58 > 5 > 1375 - 1383

Background Little is known about the performance of abbreviated MRI (AMRI) for secondary surveillance of recurrent hepatocellular carcinoma (HCC) after curative treatment. Purpose To evaluate the detection performance of AMRI for secondary surveillance of HCC after curative treatment. Study Type Retrospective. Population A total of 243 patients (183 men and 60 women; median age, 65 years) who...

article

Role of neoadjuvant treatment in resectable pancreatic cancer according to vessel invasion and increase of CA19‐9 levels

Hyeong Seok Kim, Mirang Lee, Youngmin Han, Jae Seung Kang, more

Journal of Hepato‐Biliary‐Pancreatic Sciences > 30 > 7 > 924 - 934

Background/Purpose The efficacy of neoadjuvant treatment (NAT) for resectable pancreatic cancer remains debatable, particularly in patients with portal vein (PV)/superior mesenteric vein (SMV) contact and elevated serum carbohydrate antigen (CA) 19‐9. This study investigated the clinical significance of PV/SMV contact and CA19‐9 levels, and the role of NAT in resectable pancreatic cancer. Methods...

article

Preventive effect of Helicobacter pylori eradication on the coronary heart diseases depending on age and sex with a median follow‐up of 51 months

Sang Bin Kim, Nayoung Kim, Jaehyung Park, In‐Chang Hwang, more

Helicobacter > 28 > 4 > n/a - n/a

Background The association between Helicobacter pylori (HP) infection and coronary heart disease (CHD) is controversial. This study aimed to investigate the effect of H. pylori eradication on CHD, especially in terms of age and sex. Materials and Methods From May 2003 to March 2022, 4765 subjects with H. pylori infection and without CHD (median follow‐up: 51 months) were prospectively enrolled...

article

Editorial for “Nomogram Estimating Vessels Encapsulating Tumor Clusters in Hepatocellular Carcinoma From Preoperative Gadoxetate Disodium‐Enhanced MRI”

Dong Ho Lee

Journal of Magnetic Resonance Imaging > 57 > 6 > 1906 - 1907

article

Prevalence and trends of multiple antimicrobial resistance of Helicobacter pylori in one tertiary hospital for 20 years in Korea

Jung Won Lee, Nayoung Kim, Soo In Choi, Jae Young Jang, more

Helicobacter > 28 > 1 > n/a - n/a

Background Failure of Helicobacter pylori (H. pylori) eradication is principally caused by antimicrobial resistance. Nowadays, multidrug resistance could be a major determinant of eradication failure. To assess minimal inhibitory concentration (MIC), antimicrobial resistance rates and trends in H. pylori isolated from patients with upper gastrointestinal disease with long‐term period. Materials...

article

Bed‐mounted laparoscopic surgical robot system with novel positioning arm mechanism

Deok Gyoon Chung, Minho Hwang, Byungsik Cheon, Dukyoo Kong, more

The International Journal of Medical Robotics and Computer Assisted Surgery > 18 > 4 > n/a - n/a

Background Commercialised laparoscopic surgical robotic systems require a large operating room and can only be used in large hospitals. If the robotic system is to be used in a small‐ or medium‐sized hospital, the occupied volume must be reduced further. Methods In this paper, we propose a bed‐mounted system that can be installed in a general operating room. Furthermore, we proposed a novel positioning...

article

Abbreviated Magnetic Resonance Imaging With Breath‐Hold Three‐Dimensional Magnetic Resonance Cholangiopancreatography: Assessment of Malignant Risk of Pancreatic Intraductal Papillary Mucinous Neoplasm

Jeongin Yoo, Ji Hye Min, Dong Ho Lee, Bo Yun Hur, more

Journal of Magnetic Resonance Imaging > 54 > 4 > 1177 - 1186

Background For surveillance of pancreatic intraductal papillary mucinous neoplasms (IPMNs), magnetic resonance imaging (MRI)/magnetic resonance cholangiopancreatography (MRCP) is preferred over computed tomography, but the long acquisition time limits its use. Purpose To investigate the diagnostic performance of abbreviated MRI with breath‐hold (BH) three‐dimensional MRCP (abbreviated MRI‐BH) for...

article

Favorable outcomes of rescue second‐ or third‐line culture‐based Helicobacter pylori eradication treatment in areas of high antimicrobial resistance

Jung Won Lee, Nayoung Kim, Ryoung Hee Nam, Jae Young Jang, more

Helicobacter > 26 > 5 > n/a - n/a

Background Failure of second or third‐line eradication treatment against Helicobacter pylori (H. pylori) is principally caused by antimicrobial resistance and reduced treatment adherence. Aims To evaluate the efficacy and safety of culture‐based rescue eradication treatments in patients who have previously experienced failed eradication treatment. Methods Patients who had persistent H. pylori...

article

Randomised clinical trial: comparison of tegoprazan and placebo in non‐erosive reflux disease

Seung Han Kim, Kwang Bum Cho, Hoon Jai Chun, Sang Woo Lee, more

Alimentary Pharmacology & Therapeutics > 54 > 4 > 402 - 411

Background Tegoprazan is a novel, fast‐ and long‐acting potassium‐competitive acid blocker that suppresses gastric acid secretion, which could benefit patients with non‐erosive reflux disease (NERD), a type of gastroesophageal reflux disease. Aim To evaluate the efficacy and safety profiles of tegoprazan compared with those of a placebo in Korean patients with NERD. Methods In this phase 3, double‐blind,...

article

easyEndo robotic endoscopy system: Development and usability test in a randomized controlled trial with novices and physicians

Dong‐Ho Lee, Byungsik Cheon, Joonhwan Kim, Dong‐Soo Kwon

The International Journal of Medical Robotics and Computer Assisted Surgery > 17 > 1 > 1 - 14

Background Some difficulties are common when using endoscopes. Steering is not intuitive, the endoscope weight is a physical burden to physicians and communication problems often occur between operators. Method To overcome these, we developed a robotic endoscopy system and conducted a usability test to compare conventional and robotic manipulation. Nine novices and eighteen physicians participated...

article

Varices on computed tomography as predictor of survival after hepatic resection in patients with single hepatocellular carcinoma

Dong Ho Lee, Jin Wook Chung, Ijin Joo, Kyung‐Suk Suh, more

Journal of Gastroenterology and Hepatology > 36 > 1 > 225 - 232

Background and Aim The aim of this study was to evaluate whether presence of varices on computed tomography (CT) could predict treatment outcome for hepatocellular carcinoma patients. Methods We enrolled 241 patients with single hepatocellular carcinoma ≤ 5 cm treated by surgery. With the use of preoperative CT/endoscopy, patients were classified into the following: presence of standard clinically...

article

Tumor Stiffness Measurements on MR Elastography for Single Nodular Hepatocellular Carcinomas Can Predict Tumor Recurrence After Hepatic Resection

Sae‐Jin Park, Jeong Hee Yoon, Dong Ho Lee, Woo Hyeon Lim, more

Journal of Magnetic Resonance Imaging > 53 > 2 > 587 - 596

Background Tumor stiffness (TS), measured by magnetic resonance elastography (MRE), could be associated with tumor mechanical properties and tumor grade. Purpose To determine whether TS obtained using MRE is associated with survival in patients with single nodular hepatocellular carcinoma (HCC) after hepatic resection (HR). Study Type Retrospective. Population In all, 95 patients with pathologically...

article

Long‐term follow up of serum pepsinogens in patients with gastric cancer or dysplasia after Helicobacter pylori eradication

Gitark Noh, Nayoung Kim, Yonghoon Choi, Hye Seung Lee, more

Journal of Gastroenterology and Hepatology > 35 > 9 > 1540 - 1548

Background and Aim Few studies have evaluated the change in serum pepsinogen (sPG) levels after the eradication of Helicobacter pylori. The aim of this study was to evaluate the effect of H. pylori eradication on sPG levels in patients with gastric cancer/dysplasia in comparison to a control group. Methods We prospectively enrolled 368 patients with gastric cancer/dysplasia and 610 control subjects...

article

Inhibition of the type III secretion system of Pseudomonas syringae pv. tomato DC3000 by resveratrol oligomers identified in Vitis vinifera L

Ji Eun Kang, Byeong Jun Jeon, Min Young Park, Hye Ji Yang, more

Pest Management Science > 76 > 7 > 2294 - 2303

BACKGROUND The bacterial type III secretion system (T3SS) is one of the virulence determinants of Gram‐negative bacteria through which various effector and virulence proteins are translocated into host cells. RESULTS We constructed an assay system to screen inhibitors of hrpA gene expression (a structural gene of Hrp pili) in Pseudomonas syringae pv. tomato DC3000. In a plant extract library screening,...

article

Annual eradication rate of bismuth‐containing quadruple therapy as second‐line treatment for Helicobacter pylori infection: A 15‐year prospective study at a tertiary hospital in Korea

Kichul Yoon, Nayoung Kim, Jung Won Lee, Hyuk Yoon, more

Helicobacter > 25 > 3 > n/a - n/a

Background Bismuth‐containing quadruple therapy is widely used as second‐line treatment for Helicobacter pylori infection. This prospective study investigated the changes in the annual H. pylori eradication rates of quadruple therapy. Methods This study included an intention‐to‐treat (ITT) population of 452 subjects who failed first‐line eradication therapy for H. pylori between 2003 and 2018....

article

Evaluation of a serum tumour marker‐based recurrence prediction model after radiofrequency ablation for hepatocellular carcinoma

Jeongin Yoo, Min Woo Lee, Dong Ho Lee, Jeong‐Hoon Lee, more

Liver International > 40 > 5 > 1189 - 1200

Background & aims A recent study showed that serum tumour marker‐based MoRAL score (11×√protein induced by vitamin K absence‐II [PIVKA] +2×√alpha‐foetoprotein [AFP]) can reflect both tumour burden and aggressiveness of hepatocellular carcinoma (HCC). This study aimed to evaluate whether baseline MoRAL score could predict tumour recurrence after radiofrequency ablation (RFA) for very‐early/early‐stage...

article

Clinical significance of granulomas in Crohn's disease: A systematic review and meta‐analysis

Seung Wook Hong, Hyuk Yoon, Cheol Min Shin, Young Soo Park, more

Journal of Gastroenterology and Hepatology > 35 > 3 > 364 - 373

Background and Aim Epithelioid granuloma is one hallmark used to histologically diagnose Crohn's disease (CD). However, the clinical significance of granulomas in CD is unclear. Therefore, we performed a meta‐analysis to compare the clinical features with CD according to the presence of granulomas. Methods A literature search in PubMed, EMBASE, and Cochrane databases was performed on manuscripts...

article

Primary and secondary antibiotic resistance of Helicobacter pylori in Korea from 2003 to 2018

Ju Yup Lee, Nayoung Kim, Ryoung Hee Nam, Soo In Choi, more

Helicobacter > 24 > 6 > n/a - n/a

Background Antimicrobial resistance of Helicobacter pylori (H pylori) affects the efficacy of eradication therapy. The aim of this study was to estimate the prevalence of primary and secondary resistance of H pylori isolates to antibiotics in Korea. Methods The present study was performed from 2003 to 2018. Primary resistance was evaluated in 591 patients without any history of eradication and...

article

Anaerotignum faecicola sp. nov., isolated from human faeces

Seung-Hyeon Choi, Ji-Sun Kim, Jam-Eon Park, Keun Chul Lee, more

Journal of Microbiology > 2019 > 57 > 12 > 1073-1078

A strictly anaerobic bacterium, designated as strain KGMB-03357^T, was isolated from the faeces of a healthy Korean selected by Bundang Seoul National University based on health status. Cells of strain KGMB03357^T are Gram-stain-positive, non-motile, non-spore-forming, and observed as straight or curved rods. The isolate grew at 10–45°C (optimum temperature of 40°C) and a pH range of 5.1–10.5 (optimum...

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INFONA - science communication portal

Search results for: Dong Ho Lee

Efficacy of Tegoprazan‐Containing Sequential Eradication Treatment Compared to Esomeprazole‐Containing Sequential Eradication of Helicobacter pylori in South Korea, a Region With High Antimicrobial Resistance: A Prospective, Randomized, Single Tertiary Center Study

Abbreviated MRI for Secondary Surveillance of Recurrent Hepatocellular Carcinoma After Presumed Curative Treatment

Role of neoadjuvant treatment in resectable pancreatic cancer according to vessel invasion and increase of CA19‐9 levels

Preventive effect of Helicobacter pylori eradication on the coronary heart diseases depending on age and sex with a median follow‐up of 51 months

Editorial for “Nomogram Estimating Vessels Encapsulating Tumor Clusters in Hepatocellular Carcinoma From Preoperative Gadoxetate Disodium‐Enhanced MRI”

Prevalence and trends of multiple antimicrobial resistance of Helicobacter pylori in one tertiary hospital for 20 years in Korea

Bed‐mounted laparoscopic surgical robot system with novel positioning arm mechanism

Abbreviated Magnetic Resonance Imaging With Breath‐Hold Three‐Dimensional Magnetic Resonance Cholangiopancreatography: Assessment of Malignant Risk of Pancreatic Intraductal Papillary Mucinous Neoplasm

Favorable outcomes of rescue second‐ or third‐line culture‐based Helicobacter pylori eradication treatment in areas of high antimicrobial resistance

Randomised clinical trial: comparison of tegoprazan and placebo in non‐erosive reflux disease

easyEndo robotic endoscopy system: Development and usability test in a randomized controlled trial with novices and physicians

Varices on computed tomography as predictor of survival after hepatic resection in patients with single hepatocellular carcinoma

Tumor Stiffness Measurements on MR Elastography for Single Nodular Hepatocellular Carcinomas Can Predict Tumor Recurrence After Hepatic Resection

Long‐term follow up of serum pepsinogens in patients with gastric cancer or dysplasia after Helicobacter pylori eradication

Inhibition of the type III secretion system of Pseudomonas syringae pv. tomato DC3000 by resveratrol oligomers identified in Vitis vinifera L

Annual eradication rate of bismuth‐containing quadruple therapy as second‐line treatment for Helicobacter pylori infection: A 15‐year prospective study at a tertiary hospital in Korea

Evaluation of a serum tumour marker‐based recurrence prediction model after radiofrequency ablation for hepatocellular carcinoma

Clinical significance of granulomas in Crohn's disease: A systematic review and meta‐analysis

Primary and secondary antibiotic resistance of Helicobacter pylori in Korea from 2003 to 2018

Anaerotignum faecicola sp. nov., isolated from human faeces

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