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Spectrum of final pathological diagnosis of gastric adenoma after endoscopic resection

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World Journal of Gastroenterology 2011年第47期17卷 5177-5183页

作者： Kwan Woo Nam Kyu Sang Song Heon Young Lee Byung seok Lee Jae Kyu Seong seok Hyun Kim hee seok moon Eaum seok Lee Hyun Yong Jeong Gastroenterology Center Sun Hospital Pathologic Department Chung-Nam National University Hospital Gastroenterology Unit of Internal Medicine Department Chung-Nam National University Hospital

AIM: To investigate how many discrepancies occur in patients before and after endoscopic treatment of referred adenoma and the reason for these results. METHODS: We retrospectively reviewed data from 554 cases of 534 patients who were referred from primary care centres for adenoma treatment and treated for endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD) at Chungnam National University Hospital, from July 2006 to June 2009. Reendoscopy was examined in 142 cases and biopsywas performed in 108 cases prior to treatment. Three endoscopists (1, 2 and 3) performed all EMRs or ESDs and three pathologists (1, 2 and 3) diagnosed most of the cases. Transfer notes, medical records and endoscopic pictures of these cases were retrospectively reviewed and analyzed. RESULTS: Adenocarcinoma was 72 (13.0%) cases in total 554 cases after endoscopic treatment of referred adenoma. When the grade of dysplasia was high (55.0%), biopsy number was more than three (22.7%), size was no smaller than 2.0 cm (23.2%), morphologic type was depressed (35.8%) or yamada type Ⅳ (100%), and color was red (30.9%) or mixed-or-undetermined (25.0%), it had much more malignancy rate than the others (P < 0.05). All 18 cases diagnosed as adenocarcinoma in the re-endoscopic forceps biopsy were performed by endoscopist 1. There were different malignancy rates according to the pathologist (P = 0.027). CONCLUSION: High grade dysplasia is the most important factor for predicting malignancy as a final pathologic diagnosis before treating the referred gastric adenoma. This discrepancy can occur mainly through inappropriately selecting a biopsy site where cancer cells do not exist, but it also depends on the pathologist to some extent.

关键词： Discrepancy Adenoma High grade dyspla-sia Endoscopic mucosal resection Endoscopic submu-cosal dissection

Usefulness of colonic tattooing using indocyanine green in patients with colorectal tumors

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World Journal of Clinical Cases 2018年第13期6卷 632-640页

作者： Jae Ho Park hee seok moon In Sun Kwon Gee Young Yun Seo hee Lee Dae Hwa Park Ju seok Kim Sun Hyung Kang Eaum seok Lee seok Hyun Kim Jae Kyu Sung Byung seok Lee Hyun Yong Jeong Division of Gastroenterology Department of Internal Medicine Chungnam National University Hospital Chungnam National University college of Medicine Clinical Trials Center Chungnam National University Hospital

AIM To prove that tattooing using indocyanine green(ICG) is feasible in laparoscopic surgery for a colon *** From January 2012 to December 2016, all patients who underwent laparoscopic colonic surgery were retrospectively screened, and 1010 patients with colorectal neoplasms were included. Their lesions were tattooed with ICG the day before the operation. The tattooed group(TG) included 114 patients, and the non-tattooed group(NTG) was selected by propensity score matching of subjects based on age, sex, tumor staging, and operation method(n = 228). In total, 342 patients were enrolled. Between the groups, the changes in [Delta(Δ), preoperative-postoperative] the hemoglobin and albumin levels, operation time, hospital stay, oral ingestion period, transfusion, and perioperative complications were compared. RESULTS Preoperative TG had a shorter operation time(174.76 ± 51.6 min vs 192.63 ± 59.9 min, P < 0.01), hospital stay(9.55 ± 3.36 d vs 11.42 ± 8.23 d, P < 0.01), and postoperative oral ingestion period(1.58 ± 0.96 d vs 2.81 ± 1.90 d, P < 0.01). The Δ hemoglobin(0.78 ± 0.76 g/dL vs 2.2 ± 1.18 g/dL, P < 0.01) and Δ albumin(0.41 ± 0.44 g/dL vs 1.08 ± 0.39 g/dL, P < 0.01) levels were lower in the TG. On comparison of patients in the "N0" and "N1 or N2" groups, the N0 colon cancer group had a better operation time, length of hospital stay, oral ingestion period, Δ hemoglobin, and Δ albumin results than those of the N1 or N2 group. The operation methods affected the results, and laparoscopic anterior resection(LAR) showed similar results. However, for left and right hemicolectomy, both groups showed no difference in operation time or hospital *** Preoperative tattooing with ICG is useful for laparoscopic colectomy, especially in the N0 colon cancer group and LAR.

关键词： Colorectal neoplasm Laparoscopic surgery Endoscopic tattoo Indocyanine green Perioperative

Risk factors for metachronous gastric carcinoma development after endoscopic resection of gastric dysplasia: Retrospective, single-center study

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World Journal of Gastroenterology 2017年第24期23卷 4407-4415页

作者： hee seok moon Gee Young Yun Ju seok Kim Hyuk Soo Eun Sun Hyung Kang Jae Kyu Sung Hyun Yong Jeong Kyu-Sang Song Department of Internal Medicine Chungnam National University Hospital Chungnam National University School of Medicine Department of Pathology Chungnam National University Hospital Chungnam National University School of Medicine

To determine the gastric adenocarcinoma (GAC) occurrence rate and related factors, we evaluated the follow-up results of patients confirmed to have gastric dysplasia after endoscopic resection (ER). METHODSWe retrospectively analyzed the medical records, endoscopic examination records, endoscopic procedure records, and histological records of 667 cases from 641 patients who were followed-up for at least 12 mo, from among 1273 patients who were conformed to have gastric dysplasia after Endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD) of gastric mucosal lesions between January 2007 and August 2013 at the Chungnam National University Hospital. RESULTSThe mean follow-up period was 33.8 mo, and the median follow-up period was 29 mo (range: 12-87). During the follow-up period, the occurrence of metachronous GAC was 4.0% (27/667). The mean and median interval periods between the occurrence of metachronous GAC and endoscopic treatment of gastric dysplasia were 36.3 and 34 mo, respectively (range: 16-71). The factors related to metachronous GAC occurrence after ER for gastric dysplasia were male sex (5.3% vs 1.0%), open-type atrophic gastritis (9.5% vs 3.4%), intestinal metaplasia (6.8% vs 2.4%), and high-grade dysplasia (HGD; 8.4% vs 3.2%). Among them, male sex [OR: 5.05 (1.18-21.68), P = 0.029], intestinal metaplasia [OR: 2.78 (1.24-6.23), P = 0.013], and HGD [OR: 2.70 (1.16-6.26), P = 0.021] were independent related factors in multivariate analysis. Furthermore, 24 of 27 GAC cases (88.9%) occurred at sites other than the previous resection sites, and 3 (11.1%) occurred at the same site as the previous resection site. CONCLUSIONMale sex, intestinal metaplasia, and HGD were significantly related to the occurrence of metachronous GAC after ER of gastric dysplasia, and most GACs occurred at sites other than the previous resection sites.

关键词： Gastric dysplasia Neoplasms Second primary Endoscopic mucosal resection Stomach neoplasms

Atypical onset of bicalutamide-induced liver injury

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World Journal of Gastroenterology 2016年第15期22卷 4062-4065页

作者： Gee Young Yun seok Hyun Kim seok Won Kim Jong seok Joo Ju seok Kim Eaum seok Lee Byung seok Lee Sun Hyoung Kang hee seok moon Jae Kyu Sung Heon Young Lee Kyung hee Kim Department of Internal Medicine Chungnam National University School of Medicine Chungnam National University Hospital Departments of Pathology Chungnam National University School of Medicine Chungnam National University Hospital

Anti-androgen therapy is the leading treatment for advanced prostate cancer and is commonly used for neoadjuvant or adjuvant treatment. Bicalutamide is a non-steroidal anti-androgen, used during the initiation of androgen deprivation therapy along with a luteinizing hormone-releasing hormone agonist to reduce the symptoms of tumor-related flares in patients with advanced prostate cancer. As side effects, bicalutamide can cause fatigue, gynecomastia, and decreased libido through competitive androgen receptor blockade. Additionally, although not as common, drug-induced liver injury has also been reported. Herein, we report a case of hepatotoxicity secondary to bicalutamide use. Typically, bicalutamideinduced hepatotoxicity develops after a few days; however, in this case, hepatic injury occurred 5 mo after treatment initiation. Based on this rare case of delayed liver injury, we recommend careful monitoring of liver function throughout bicalutamide treatment for prostate cancer.

关键词： Bicalutamide Drug-induced liver injury Prostate neoplasm

Reactivation of tuberculosis in hepatocellular carcinoma treated with transcatheter arterial chemoembolization: A report of 3 cases

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World Journal of Radiology 2012年第5期4卷 236-240页

作者： Yun Jeung Kim Pyung Gohn Goh hee seok moon Eaum seok Lee seok Hyun Kim Byung seok Lee Heon Young Lee Division of Hepatology Department of Internal Medicine Chung-Nam National University Hospital 640 Daesa-Dong Jung-Gu Daejeon 301-721 South Korea

Pulmonary tuberculosis is an opportunistic infection that can be reactivated in immunocompromised conditions, for example, in malignancy or after liver transplantation. Hepatocellular carcinoma (HCC) has a high mortality rate because it is frequently diagnosed at an advanced stage. Although surgical resection is the established curative measure for HCC, it is only feasible for earlystage HCC. Transcatheter arterial chemoembolization (TACE) is the most common treatment modality for patients with unresectable HCC. However, repeated TACE sessions and, occasionally, the tumor itself can further impair the reserve hepatic function and immunity. We report 3 recent cases of HCC with reactivation of pulmonary tuberculosis after TACE.

关键词： Hepatocellular carcinoma Reactivation Transcatheter arterial chemoembolization Tuberculosis

High Na-ion conductivity andmechanical integrity of anion-exchanged polymeric hydrogel electrolytes for flexible sodium ion hybrid energy storage

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SusMat 2024年第1期4卷 140-153页

作者： JungWoo Hong Harpalsinh H.Rana Jeong hee Park Jun Su Kim Sang Joon Lee Gun Jang Tae Hoon Kang Kang Ho Shin Sang Ha Baek Wooseok Yang Kwang Ho Kim Ju-Hyuk Lee Ho seok Park School of Chemical Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Clean Energy Research Center Korea Institute of Science and Technology(KIST)SeoulRepublic of Korea KIST-SKKU Carbon-Neutral Research Center Sungkyunkwan University(SKKU)SuwonRepublic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea COSMOS LAB/92 Jomaru-ro 385beon-gilBucheon-siRepublic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea

The polymeric gel electrolytes are attractive owing to their higher ionic conductivities than those of dry polymer electrolytes and lowered water activity for enlarged potential ***,the ionic conductivity and mechanical strength of the Na-ion conducting polymeric gel electrolytes are limited by below 20 mS cm−1 and 2.2 ***,we demonstrate Na-ion conducting and flexible polymeric hydrogel electrolytes of the chemically coupled poly(diallyldimethylammonium chloride)-dextrin-N,N′-methylene-bisacrylamide film immersed in NaClO_(4) solution(ex-DDA-Dex+NaClO_(4))for flexible sodium-ion hybrid capacitors(f-NIHC).In particular,the anion exchange reaction and synergistic interaction of ex-DDA-Dex with the optimum ClO_(4)−enable to greatly improve the ionic conductivity up to 27.63 mS cm−1 at 25◦C and electrochemical stability window up to 2.6 V,whereas the double networking structure leads to achieve both the mechanical strength(7.48 MPa)and softness of hydrogel ***,the f-NIHCs with the ex-DDA-Dex+NaClO_(4) achieved high specific and high-rate capacities of 192.04 F g^(−1)at 500 mA g^(−1)and 116.06 F g^(−1)at 10000 mA g^(−1),respectively,delivering a large energy density of 120.03Wh kg^(−1)at 906Wkg^(−1)and long cyclability of 70%over 500 cycles as well as demonstrating functional operation under mechanical stresses.

关键词： anion exchange chemistry flexible energy storage hybrid energy storage hydrogel electrolytes renewable electrolytes sodium storage

Immunoglobulin G4-related spinal pachymeningitis:A case report

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World Journal of Clinical Cases 2024年第32期12卷 6551-6558页

作者： Tae-seok Chae Da-Sol Kim Gi-Wook Kim Yu Hui Won Myoung-Hwan Ko Sung-hee Park Jeong-Hwan Seo Department of Physical Medicine&Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Physical Medicine&Rehabilitation Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Immunoglobulin G4-related disease(IgG4-RD)is a complex immune-mediated condition that causes fibrotic inflammation in several organs.A significant clinical feature of IgG4-RD is hypertrophic pachymeningitis,which manifests as inflammation of the dura mater in intracranial or spinal *** IgG4-RD can affect multiple areas,the spine is a relatively rare site compared to the more frequent involvement of intracranial *** SUMMARY A 70-year-old male presented to our hospital with a two-day history of fever,altered mental status,and generalized *** initial brain magnetic resonance imaging(MRI)revealed multiple small infarcts across various cerebral *** the second day after admission,a physical examination revealed motor weakness in both lower extremities and diminished sensation in the right lower *** evaluation revealed findings consistent with acute motor sensory *** initial management with intravenous immunoglobulin for presumed Guillain-Barrésyndrome,the patient exhibited progressive worsening of motor *** the 45th day of hospitalization,an enhanced MRI of the entire spine,focusing specifically on the thoracic 9 to lumbar 1 vertebral level,raised the suspicion of IgG4-related spinal ***,the patient was administered oral prednisolone and participated in a comprehensive rehabilitation program that included gait training and lower extremity strengthening *** IgG4-related spinal pachymeningitis,diagnosed on MRI,was treated with corticosteroids and a structured rehabilitation regimen,leading to significant improvement.

关键词： Immunoglobulin G4 related disease Immunoglobulin G4 related spinal pachymeningitis Manual motor test Electromyography Magnetic resonance imaging Case report

Module-level design and characterization of thermoelectric power generator

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Chinese Physics B 2022年第4期31卷 39-47页

作者： Kang Zhu Shengqiang Bai hee seok Kim Weishu Liu Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices Southern University of Science and TechnologyShenzhen 518055China The State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Mechanical Engineering School of Engineering&TechnologyUniversity of Washington TacomaTacomaWA 98402USA

Thermoelectric power generation provides us the unique capability to explore the deep space and holds promise for harvesting the waste heat and providing a battery-free power supply for *** past years have witnessed massive progress in thermoelectric materials,while the module-level development is still lagged *** would like to shine some light on the module-level design and characterization of thermoelectric power generators(TEGs).In the module-level design,we review material selection,thermal management,and the determination of structural *** also look into the module-level characterization,with particular attention on the heat flux ***,the challenge in the optimal design and reliable characterization of thermoelectric power generators is discussed,together with a calling to establish a standard test procedure.

关键词： thermoelectric module-level design characterization

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