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World Journal of Gastrointestinal Endoscopy 2024年第6期16卷 368-375页

作者： Makomo Makazu Akiko Sasaki Chikamasa Ichita chihiro sumida Takashi Nishino Miki Nagayama Shinichi Teshima Gastroenterology Medicine Center Shonan Kamakura General HospitalKamakura 247-8533Japan Department of Gastroenterology Shonan Kamakura General HospitalKanagawa 247-8533Japan Department of Pathology Shonan Kamakura General HospitalKamakura 247-8533Japan

BACKGROUND Duodenal Brunner's gland hyperplasia(BGH)is a therapeutic target when complications such as bleeding or gastrointestinal obstruction occur or when malignancy cannot be ruled ***,we present a case of large BGH treated with endoscopic mucosal resection(EMR).CASE SUMMARY An 83-year-old woman presented at our hospital with *** tests revealed severe anemia,esophagogastroduodenoscopy showed a 6.5 cm lesion protruding from the anterior wall of the duodenal bulb,and biopsy revealed the presence of glandular *** ultrasonography(EUS)demonstr-ated relatively high echogenicity with a cystic *** muscularis propria was slightly elevated at the base of the *** was performed without *** formalin-fixed lesion size was 6 cm×3.5 cm×3 cm,showing nodular proliferation of non-dysplastic Brunner's glands compartmentalized by fibrous septa,confirming the diagnosis of *** of EMR or hot snare polypectomy are rare for duodenal BGH>6 *** this case,the choice of EMR was made by obtaining information on the base of the lesion as well as on the internal characteristics through *** Large duodenal lesions with good endoscopic maneuverability and no evident muscular layer involvement on EUS may be resectable via EMR.

关键词： Duodenum Brunner’s gland hyperplasia Brunner’s gland hamartoma Brunner’s gland adenoma Endoscopic mucosal resection Case report

Comprehensive review on small common bile duct stones

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World Journal of Gastroenterology 2023年第13期29卷 1955-1968页

作者： Sakue Masuda Kazuya Koizumi Kento Shionoya Ryuhei Jinushi Makomo Makazu Takashi Nishino Karen Kimura chihiro sumida Jun Kubota Chikamasa Ichita Akiko Sasaki Masahiro Kobayashi Makoto Kako Uojima Haruki Department of Gastroenterology Shonan Kamakura General HospitalKanagawa 247-8533Japan Department of Gastroenterology Kitasato University School of MedicineKanagawa 252-0375Japan

Common bile duct stones are among the most common conditions encountered by ***,it is well researched;however,some items,such as indications for endoscopic papillary balloon dilatation(EPBD),safety of EPBD and endoscopic sphincterotomy in patients receiving dual antiplatelet therapy or direct oral anticoagulant,selection strategy for retrieval balloons and baskets,lack adequate ***,the guidelines have been updated with new research,while others remain unchanged due to weak *** this review,we comprehensively summarize the standard methods in guidelines and new findings from recent studies on papillary dilation,stone retrieval devices,difficult-to-treat cases,troubleshooting during the procedure,and complicated cases of cholangitis,cholecystolithiasis,or distal biliary stricture.

关键词： Choledocholithotomy Choledocholithiasis Common bile duct stones Endoscopic papillary balloon dilation Endoscopic sphincterotomy Small common bile duct stones

Clinical features and progress of ischemic gastritis with high fatalities: Seven case reports

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World Journal of Clinical Cases 2022年第24期10卷 8686-8694页

作者： Kento Shionoya Akiko Sasaki Hidekazu Moriya Karen Kimura Takashi Nishino Jun Kubota chihiro sumida Junichi Tasaki Chikamasa Ichita Makomo Makazu Sakue Masuda Kazuya Koizumi Jun Kawachi ToshitakaTsukiyama Makoto Kako Gastroenterology Medicine Center Shonan Kamakura General HospitalKamakura 247-8533KanagawaJapan Department of General Internal Medicine Shonan Kamakura General HospitalKamakura 247-8533KanagawaJapan Department of General Surgery Shonan Kamakura General HospitalKamakura 247-8533KanagawaJapan Department of Radiology Shonan Kamakura General HospitalKamakura 247-8533Japan

BACKGROUND Ischemic gastritis is a clinically rare and highly fatal disease that occurs when the hemodynamics of a patient with vascular risk is *** diagnosis and treatment are possible only with upper endoscopy after symptom *** report seven cases of ischemic gastritis and its clinical features,prognosis,and indicators that may help in early *** SUMMARY Of the seven patients,six had vascular risk and five died within 2 wk of *** symptoms included hematemesis and *** surgery is a choice for radical treatment,not all patients were *** such patients,conservative treatment was selected,but all of them *** contrast,patients who underwent repeat endoscopy showed improved mucosal findings,suggesting that this improvement may not affect *** ischemic changes such as wall thickening,mural emphysema,and fluid retention in the stomach were observed before diagnosis through endoscopy and computed tomography(CT).The CT scan can be effective for early detection,and improvement in circulatory failure and aggressive treatment may save the lives of patients with this *** The characteristic CT findings enable early detection of ischemic *** diagnosis increases the chance of survival if early therapeutic intervention and improvement of circulatory dynamics can be achieved in this highly fatal disease.

关键词： Celiac artery Gastrointestinal bleeding Ischemic gastritis Superior mesenteric artery Vascular risk Case report

Comprehensive review on endoscopic ultrasound-guided tissue acquisition techniques for solid pancreatic tumor

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World Journal of Gastroenterology 2023年第12期29卷 1863-1874页

作者： Sakue Masuda Kazuya Koizumi Kento Shionoya Ryuhei Jinushi Makomo Makazu Takashi Nishino Karen Kimura chihiro sumida Jun Kubota Chikamasa Ichita Akiko Sasaki Masahiro Kobayashi Makoto Kako Uojima Haruki Department of Gastroenterology Shonan Kamakura General HospitalKanagawa 247-8533Japan Department of Gastroenterology Internal MedicineKitasato University School of MedicineKanagawa 252-0375Japan

Pancreatic ductal adenocarcinoma is speculated to become the second leading cause of cancer-related mortality by 2030,a high mortality rate considering the number of *** and chemotherapy are the main treatment options,but they are burdensome for patients.A clear histological diagnosis is needed to determine a treatment plan,and endoscopic ultrasound(EUS)-guided tissue acquisition(TA)is a suitable technique that does not worsen the cancer-specific prognosis even for lesions at risk of needle tract *** the development of personalized medicine and precision treatment,there has been an increasing demand to increase cell counts and collect specimens while preserving tissue structure,leading to the development of the fine-needle biopsy(FNB)***-FNB is rapidly replacing EUS-guided fine-needle aspiration(FNA)as the procedure of choice for EUS-TA of pancreatic ***,EUS-FNA is sometimes necessary where the FNB needle cannot penetrate small hard lesions,so it is important clinicians are familiar with *** these recent developments,we present an up-to-date review of the role of EUS-TA in pancreatic ***,technical aspects,such as needle caliber,negative pressure,and puncture methods,for obtaining an adequate specimen in EUS-TA are discussed.

关键词： Endoscopic ultrasound-guided fine needle biopsy Endoscopic ultrasoundguided tissue acquisition Personalized medicine Genomic profiling test Pancreatic cancer Puncture procedure

Effectiveness of early colonoscopy in patients with colonic diverticular hemorrhage:A single-center retrospective cohort study

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World Journal of Gastrointestinal Endoscopy 2022年第12期14卷 759-768页

作者： Chikamasa Ichita Sayuri Shimizu Akiko Sasaki chihiro sumida Takashi Nishino Karen Kimura Department of Gastroenterology Medicine Center Shonan Kamakura General HospitalKamakura 247-8533KanagawaJapan Department of Health Data Science Yokohama City UniversityYokohama 236-0027KanagawaJapan

BACKGROUND Current guidelines recommend colonoscopy within 24 h for acute lower gastrointestinal bleeding;however,the evidence in support for colonic diverticular hemorrhage(CDH)indications remains *** To investigate the effectiveness of early colonoscopy on the length of hospital stay for CDH *** We conducted a single-center retrospective cohort *** who underwent colonoscopy within 24 h of presentation(early group)were compared with those who underwent colonoscopy beyond 24 h of presentation(elective group).The primary outcome was the length of hospital stay,and secondary outcomes were the identification of stigmata of recent hemorrhage(SRH),rebleeding,red blood cell transfusion more than 4 units,and interventional radiology and abdominal surgery after *** We identified 574 CDH *** were divided into the early(n=328)and elective(n=226)*** propensity score matching,191 pairs were *** length of hospital stay did not significantly differ between the two groups(early group vs elective group;median,7 vs 8 d;P=0.10).The early group had a significantly high identification of SRH(risk difference,11.6%;95%CI:2.7 to 20.3;P=0.02).No significant differences were found in the rebleeding(risk difference,4.7%;95%CI:-4.1 to 13.5;P=0.35),red blood cell transfusion more than 4 units(risk difference,1.6%;95%CI:-7.5 to 10.6;P=0.82),and interventional radiology and abdominal surgery rate after colonoscopy(risk difference,0.5%;95%CI:-2.2 to 3.2;P=1.00).CONCLUSION Early colonoscopy within 24 h,on arrival for CDH,could not improve the length of hospital stay.

关键词： Colonic diverticular hemorrhage Colonic diverticular bleeding Diverticular hemorrhage Diverticular bleeding Early colonoscopy Colonoscopy

Comparison of peg-interferon, ribavirin plus telaprevir vs simeprevir by propensity score matching

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World Journal of Hepatology 2015年第28期7卷 2841-2848页

作者： Hideki Fujii Takeshi Nishimura Atsushi Umemura Taichiro Nishikawa Kanji Yamaguchi Michihisa Moriguchi Yoshio sumida Hironori Mitsuyoshi chihiro Yokomizo Saiyu Tanaka Hiroki Ishikawa Kenichi Nishioji Hiroyuki Kimura Shiro Takami Yasuyuki Nagao Takayuki Takeuchi Toshihide Shima Yoshihiko Sawa Masahito Minami Kohichiroh Yasui Yoshito Itoh Department of Molecular Gastroenterology and Hepatology Kyoto Prefectural University of Medicine Department of Gastroenterology Japanese Red Cross Kyoto Daiichi Hospital Department of Gastroenterology and Hepatology North Medical Center Kyoto Prefectural University of Medicine Department of Gastroenterology Osaka General Hospital of West Japan Railway Company Center for Digestive and Liver Diseases Nara City Hospital Department of Gastroenterology and Hepatology Omihachiman Community Medical Center Health Care Division Kyoto Second Red Cross Hospital Department of Gastroenterology Otsu Municipal Hospital Department of Gastroenterology Matsushita Memorial Hospital Higashiomicity Notogawa Hospital Center of Gastroenterology and Hepatology Saiseikai Suita Hospital Department of Internal Medicine Aiseikai Yamashina Hospital

AIM: To compare efficacy of telaprevir(TVR) and simeprevir(SMV) combined with pegylated interferon(PEG-IFN) and ribavirin(RBV) while treating chronic hepatitis C(CHC). METHODS: In all, 306 CHC patients were included in this study. There were 159 patients in the TVR combination therapy group and 147 patients in the SMV combination therapy group. To evaluate pretreatment factors contributing to sustained virological response at 12 wk(SVR12), univariate and multivariate analyses were performed in TVR and SMV groups. To adjust for patient background between TVR and SMV groups, propensity score matching was performed. Virological response during treatment and SVR12 were ***: Overall rates of SVR12 [undetectable serum hepatitis C virus(HCV) RNA levels] were 79.2% and 69.4% in TVR and SMV groups, respectively. Patients in the SMV group were older, had higher serum HCV RNA levels, lower hemoglobin, higher prevalence of unfavorable interleukin-28B(IL28B) genotype(rs8099917), and poorer response to previous PEG-IFN and RBV treatment. Propensity score matching was performed to adjust for backgrounds(n = 104) and demonstrated SVR12 rates of 74.0% and 73.1% in the TVR and SMV groups, respectively. In the TVR group, discontinuation rates were higher because of adverse events; however, breakthrough and nonresponse was more frequent in the in SMV group. Multivariate analysis revealed IL28 B genotype(rs8099917) as the only independent predictive factor of SVR12 in both ***: SVR12 rates were almost identical following propensity score matching.

关键词： Chronic hepatitis C Combination therapy Pegylated interferon Simeprevir Telaprevir Propensityscore matching Protease inhibitor