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Hepatocellular carcinoma effective stereotactic body radiotherapy using Gold Anchor and the Synchrony system:Two case reports and review of literature

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World Journal of Clinical Cases 2022年第8期10卷 2591-2603页

作者： Sakue Masuda Toshitaka Tsukiyama Yumiko Minagawa kazuya koizumi Makoto Kako Takeshi Kinbara Uojima Haruki Department of Gastroenterology Shonankamakura General HospitalKanagawa 247-8533Japan Department of Interventional Radiology Center Shonan Kamakura General HospitalKanagawa 247-8533Japan Department of Radiation Oncology Shonan Kamakura General HospitalKanagawa 247-8533Japan

BACKGROUND Radiotherapy for hepatocellular carcinoma(HCC)is considered to have limited efficacy because of treatment intensity considering that the irradiated area includes the liver,which is highly *** this report,we present two cases in which tumor control by surgical resection,radiofrequency ablation,transcatheter arterial chemoembolization(TACE),and lenvatinib administration was difficult,but stereotactic body radiotherapy(SBRT)using the Synchrony system by Radixact?and Gold Anchor?(GA)was *** SUMMARY A 60-year-old man had a single 10-cm HCC in the right *** lesions remained after TACE,and levels of alpha-fetoprotein and protein induced by vitamin K antagonists II(PIVKA-II)decreased and quickly *** performed SBRT with *** weeks after implantation,localized radiotherapy(SBRT;40 Gy/5 fractions)was performed using the Synchrony system by Radixact?.Four weeks later,the viable lesion had disappeared,and the PIVKA-II levels decreased.A 77-year-old man had a single 12-cm HCC in the right *** patient experienced recurrence after *** recurrence occurred after TACE,and we performed SBRT with *** of the proximity of the HCC to the gastrointestinal tract,localized radiotherapy(SBRT;39 Gy/13 fractions)to the HCC was performed 3 wk after implantation using the Synchrony system by Radixact?.Four weeks later,the viable lesion had disappeared on computed tomography,and the PIVKA-Ⅱlevels *** SBRT using the Synchrony system and GA can deliver a large dose accurately and safely,and could have a high therapeutic effect.

关键词： Fiducial marker Hepatocellular carcinoma Gold Anchor■ Radixact■ Stereotactic body radiotherapy Case report

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Efficacy of combination therapy with natriuretic and aquaretic drugs in cirrhotic ascites patients: A randomized study

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World Journal of Gastroenterology 2017年第45期23卷 8062-8072页

作者： Haruki Uojima Hisashi Hidaka Tsuyoshi Nakayama Ji Hyun Sung Chikamasa Ichita Shinnosuke Tokoro Sakue Masuda Akiko Sasaki kazuya koizumi Hideto Egashira Makoto Kako Department of Gastroenterology Shonan Kamakura General Hospital Department of Gastroenterology Internal MedicineKitasato University School of Medicine Department of Gastroenterology Shonan Atsugi Hospital

AIM To assess the effects of a combination therapy with natriuretic and aquaretic drugs in cirrhotic ascites *** A two-center,randomized,open-label,prospective study was conducted. Japanese patients who met the criteria were randomized to trial group and the combination diuretic group(received 7.5 mg of tolvaptan) or the conventional diuretic group(received 40 mg of furosemide) for 7 d in addition to the natriuretic drug which was used prior to enrolment in this study. The primary endpoint was the change in body weight from the baseline. Vital signs,fluid intake,and laboratory and urinary data were assessed to determine the pharmacological effects after administration of aquaretic and natriuretic *** A total of 56 patients were randomized to receive either tolvaptan(n = 28) or furosemide(n = 28). In the combination and conventional diuretic groups,the average decrease in body weight from the baseline was 3.21 ± 3.17 kg(P < 0.0001) and 1.75 ± 2.36 kg(P = 0.0006),respectively,when measured on the final dosing day. Following 1 wk of treatment,a significantly greater reduction in body weight was observed in the combination diuretic group compared to that in the conventional diuretic group(P = 0.0412).CONCLUSION Compared to a conventional diuretic therapy with only a natriuretic drug,a combination diuretic therapy with natriuretic and aquaretic drugs is more effective for patients with cirrhotic ascites.

关键词： Tolvaptan Liver cirrhosis Diuretic effect Ascites Hepatic edema

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Safety and efficacy of metallic stent for unresectable distal malignant biliary obstruction in elderly patients

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World Journal of Gastroenterology 2018年第1期24卷 69-75页

作者： Yuji Sakai Tomohisa Iwai Kenji Shimura Katsushige Gon kazuya koizumi Masashi Ijima Kazuro Chiba Seigo Nakatani Harutoshi Sugiyama Toshio Tsuyuguchi Terumi Kamisawa Iruu Maetani Mitsuhiro Kida Department of Gastroenterology and Nephrology Graduate School of MedicineChiba UniversityChiba 260-8670Japan Department of Gastroenterology Kitasato University School of MedicineKanagawa 252-0375Japan Department of Gastroenterology Asahi Central HospitalChiba 289-2511Japan Division of Gastroenterology and Hepatology Department of Internal MedicineToho University Ohashi Medical CenterTokyo 153-8515Japan Gastroenterology Medicine Center Shonan Kamakura General HospitalKanagawa 247-8533Japan Department of Gastroenterology Subaru Health Insurance Society Ota Memorial HospitalGunma 373-8585Japan Department of Gastroenterology Tokyo Metropolitan Cancer and Infectious Diseases CenterKomagome HospitalTokyo 113-8677Japan

AIM To study the safety of insertion of metallic stents in elderly patients with unresectable distal malignant biliary *** Of 272 patients with unresectable distal malignant biliary obstruction, 184 patients under the age of 80 were classified into Group A, and 88 subjects aged 80 years or more were classified into Group B. The safety of metallic stent insertion, metal stent patency period, and the obstruction rate were examined in each *** In Group B, patients had a significantly worse per-formance status, high blood pressure, heart disease, cerebrovascular disease, and dementia; besides the rate of patients orally administered antiplatelet drugs or anticoagulants tended to be higher(P < 0.05). Metallic stents were successfully inserted in all patients. The median patency period was 265.000 ± 26.779(1-965) d; 252.000 ± 35.998(1-618) d in Group A and 269.000 ± 47.885(1-965) d in Group B, with no significant difference between the two groups. Metallic stent obstruction occurred in 82 of the 272(30.15%) patients; in 53/184(28.80%) patients in Group A and in 29/88(32.95%) of those in Group B, showing no significant difference between the two groups. Procedural accidents due to metal stent insertion occurred in 24/272(8.8%) patients; in 17/184(9.2%) of patients in Group A and in 7/88(8.0%) of those in Group B, with no significant difference between the two groups, *** These results suggested that metallic stents can be safely inserted to treat unresectable distal malignant biliary obstruction even in elderly patients aged 80 years or more.

关键词： Elderly patients Metallic stent Malignant biliary obstruction

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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

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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

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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

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Low-Energy Spin Excitations in Detwinned FeSe

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Chinese Physics Letters 2024年第6期41卷 112-118页

作者：刘瑞鲜 Mitsutaka Nakamura kazuya Kamazawa 鲁兴业 Center for Advanced Quantum Studies School of Physics and AstronomyBeijing Normal UniversityBeijing 100875China J-PARC Center Japan Atomic Energy Agency(JAEA)TokaiIbaraki 319-1195Japan Research Center for Neutron Science and Technology Comprehensive Research Organization for Science and SocietyTokaiIbaraki 319-1106Japan

Antiferromagnetic spin fluctuation is regarded as the leading driving force for electron pairing in high-Tc *** iron-based superconductors,spin excitations at low energy range,especially the spin-resonance mode at ER~5kBTc,are important for understanding the ***,we use inelastic neutron scattering(INS)to investigate the symmetry and in-plane wave-vector dependence of low-energy spin excitations in uniaxial-strain detwinned Fe *** low-energy spin excitations(E<10 meV)appear mainly at Q=(±1,0)in the superconducting state(T9K)and the nematic state(T90 K),confirming the constant C_(2) rotational symmetry and ruling out the C_(4) mode at E≈3 meV reported in a prior INS ***,our results reveal an isotropic spin resonance in the superconducting state,which is consistent with the s±wave pairing *** slightly higher energy,low-energy spin excitations become highly *** full width at half maximum of spin excitations is elongated along the transverse *** Q-space isotropic spin resonance and highly anisotropic low-energy spin excitations could arise from dyz intra-orbital selective Fermi surface nesting between the hole pocket aroundΓpoint and the electron pockets centered at MX point.

关键词： excitation symmetry slightly

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Condyloma acuminatum of the anal canal,treated with endoscopic submucosal dissection

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World Journal of Gastroenterology 2016年第8期22卷 2636-2641页

作者： Akiko Sasaki Takeshi Nakajima Hideto Egashira Kotaro Takeda Shinnosuke Tokoro Chikamasa Ichita Sakue Masuda Haruki Uojima kazuya koizumi Takeshi Kinbara Taku Sakamoto Yutaka Saito Makoto Kako Gastroenterology Medicine Center Shonan Kamakura General Hospital 1370-1 Okamoto Kamakura Endoscopy Division National Cancer Center Hospital5-1-1 Tsukiji Chuoku Diagnostic Pathology Shonan Kamakura General Hospital 1370-1 Okamoto Kamakura

Condyloma acuminatum(CA) is a common sexually transmitted disease caused by human papilloma virus infection. Not all individuals develop persistent, progressive disease, but careful follow up is required with moderate-to-severe dysplasia to prevent progression to malignancy. Standard therapies include surgical treatments(trans-anal resection and transanal endoscopic microsurgery) and immunotherapeutic and topical methods(topical imiquimod); however, local recurrence remains a considerable problem. Here, we report a case with superficial CA of the anal canal, treated with endoscopic submucosal dissection(ESD). A 28-year-old man presented with a chief complaint of hematochezia. Digital exam did not detect a tumor. Screening colonoscopy revealed 10-mm long, whitish condyles extending from the anal canal to the lower rectum. The lesion covered almost the whole circumference, and only a small amount of normal mucosa remained. Magnifying endoscopy with narrow band imaging showed brownish hairpin-shaped, coiled capillaries. Although histopathological diagnosis by biopsy revealed CA, accurate histological differentiation between CA, papilloma, and squamous cell carcinoma can be difficult with a small specimen. Therefore, weperformed diagnostic ESD, which provides a complete specimen for precise histopathological evaluation. The pathological diagnosis was CA, with moderate dysplasia(anal intraepithelial neoplasia 2). There was no recurrence at 16 mo after the initial ESD. Compared to surgical treatment, endoscopic diagnosis and resection could be performed simultaneously and the tumor margin observed clearly with a magnifying chromocolonoscopy, resulting in less recurrence. These findings suggest that endoscopic resection may be an alternative method for CA that prevents recurrence.

关键词： Condylomata acuminate Recurrence Endoscopy Dissection Carcinoma in situ

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External defects and severity level evaluation of potato using single and multispectral imaging in near infrared region Author links open overlay panel

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Information Processing in Agriculture 2024年第1期11卷 80-90页

作者： Dimas Firmanda Al Riza Slamet Widodo kazuya Yamamoto Kazunori Ninomiya Tetsuhito Suzuki Yuichi Ogawa Naoshi Kondo Laboratory of Biosensing Engineering Graduate School of AgricultureKyoto UniversityKitashirakawaKyoto 6068267Japan Department of Biosystems Engineering Faculty of Agricultural TechnologyUniversitas BrawijayaJl.VeteranMalang 65145Indonesia Department of Mechanical and Biosystem Engineering Bogor Agricultural UniversityJl.Raya Darmaga Kampus IPB DarmagaBogor 16680Indonesia Technology Development Department Shibuya Seiki Co.Ltd.66Takaoka-choMatsuyamaEhime 7918036Japan

Non-invasive potato defects detection has been demanded for sorting and grading *** on the classification of the defects has been available,however,investigation on the severity level calculation is *** the detection of the common scab,it has been found that imaging in the infrared region provide an interesting characteristic that could distinguish defected area to normal ***,investigations on this wavelength range is interesting to add more knowledge and for *** this research,the multispectral image has been obtained and investigated especially at three wavelengths(950,1150,1600 nm).Image pre-processing and pseudo-color conversion techniques were explored to enhance the contrast between defects,normal background skin area and soil *** show that external defects,such as common scab and some mechanical damage types,appear brighter in the near infrared region,especially at 1600 nm against the normal skin *** has been found that pseudo-color images conversion provides more information regarding type if surface characteristics compared to grayscale single *** segmentation using pseudo-color images after multiplication operation pre-processing could be used for common scab and mechanical damage detection excluding soil deposits with a Dice Sorensen coefficient of *** addition,image segmentation using single image at 1600 nm shown relatively better results with Dice Sorensen coefficient of 0.72 with note that thick soil deposits will also be *** severity level evaluation had an R2 correlation of 0.84 against standard measurements of severity.

关键词： Multispectral imaging Pseudo-color Common scab External defects Near infrared

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Transmembrane serine protease 4 expression in the prognosis of radical resection for biliary tract cancer

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2555-2564页

作者： Yoshiyuki Shibata Takeshi Sudo Sho Tazuma Naoki Tanimine Takashi Onoe Yosuke Shimizu Atsushi Yamaguchi kazuya Kuraoka Shinya Takahashi Hirotaka Tashiro Department of Surgery National Hospital Organization Kure Medical Center and Chugoku Cancer CenterHiroshima 737-0023Japan Department of Gastroenterology National Hospital Organization Kure Medical Center and Chugoku Cancer CenterHiroshima 737-0023Japan Department of Diagnostic Pathology National Hospital Organization Kure Medical Centerand Chugoku Cancer CenterHiroshima 737-0023Japan Department of Surgery Graduate School of Biochemical and Health ScienceHiroshima UniversityHiroshima 734-8551Japan

BACKGROUND Recent advancements in biliary tract cancer(BTC)treatment have expanded beyond surgery to include adjuvant therapy,yet the prognosis remains *** prognostic biomarkers could enhance the assessment of patients who have undergone radical resection for *** To determine transmembrane serine protease 4(TMPRSS4)utility as a prognostic biomarker of radical resection for *** Medical records of patients who underwent radical resection for BTC,excluding intrahepatic cholangiocarcinoma,were retrospectively *** associations between TMPRSS4 expression and clinicopathological factors,overall survival,and recurrence-free survival were *** Among the 85 patients undergoing radical resection for BTC,46(54%)were *** TMPRSS4-positive group exhibited significantly higher preoperative carbohydrate antigen 19-9(CA19-9)values and greater lymphatic invasion than the TMPRSS4-negative group(P=0.019 and 0.039,respectively).Postoperative overall survival and recurrence-free survival were significantly worse in the TMPRSS4-positive group(median survival time:25.3 months vs not reached,P<0.001;median survival time:28.7 months vs not reached,P=0.043,respectively).Multivariate overall survival analysis indicated TMPRSS4 positivity,pT3/T4,and resection status R1 were independently associated with poor prognosis(P=0.032,0.035 and 0.030,respectively).TMPRSS4 positivity correlated with preoperative CA19-9 values≥37 U/mL and pathological tumor size≥30 mm(P=0.016 and 0.038,respectively).CONCLUSION TMPRSS4 is a potential prognostic biomarker of radical resection for BTC.

关键词： Biliary tract cancer Biomarker Prognosis Radical resection Transmembrane serine protease 4

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