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Influence of night duty on endoscopic therapy for bile duct stones

World Journal of Gastroenterology 2016年第42期22卷 9387-9393页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama ko watanabe Jun Nakamura Hitomi Kikuchi Yuichi Waragai Mika Takasumi Takuto Hikichi Hiromasa Ohira Department of Gastroenterology and Rheumatology Fukushima Medical University School of Medicine Department of Endoscopy Fukushima Medical University Hospital

AIM To examine the influence of night duty(ND) on endoscopic therapy for biliary duct *** The subjects consisted of 133 patients who received initial endoscopic therapy for biliary duct stones performed by eight endoscopists after they had been on(ND group, n = 34 patients) or not [day duty(DD) group, n = 99 patients]. Patient characteristics(age, gender, history of abdominal surgery, transverse diameter of the largest stone, number of stones), years of experience of the endoscopists, endoscopic procedures [sphincterotomy, papillary balloon dilation(EPBD), papillary large balloon dilation(EPLBD)], and outcomes of initial endoscopy(procedure time; rate of stone removal by the first endoscopist; proceduresuccess rate by the first endoscopist: removal of stones or endoscopic retrograde biliary drainage; rate of final stone removal; final procedure success rate; complications; hospitalization after the procedure) were compared retrospectively between the two groups. History of abdominal surgery and treatment outcomes were also compared between the groups for each of the four endoscopists who performed most of the procedures in the ND *** There were no significant differences regarding the number of treatments performed by each endoscopist or the years of experience between the ND and DD groups. The frequency of endoscopic retrograde cholangiopancreatography procedures did not differ significantly between the groups. There were also no significant differences regarding patient characteristics: age, gender, history of abdominal surgery(ND 7: Billroth II 4, R-Y 3; DD 18: double tract reconstruction 1, Billroth I 3, Billroth II 6, R-Y 7, duodenoduodenostomy for annular pancreas 1), transverse diameter of largest stone, and number of stones between the two groups. Among the treatment procedures, the endoscopic s p h i n c t e r o t o m y a n d E P B D r a t e s d i d n o t d i f f e r significantly between the groups. However, EPLBD was performed more fr

关键词： Night duty Endoscopic therap Bile duct stone Removal of stones Procedure time

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Predictive factors for the failure of endoscopic stent-instent self-expandable metallic stent placement to treat malignant hilar biliary obstruction

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World Journal of Gastroenterology 2017年第34期23卷 6273-6280页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama ko watanabe Jun Nakamura Hitomi Kikuchi Yuichi Waragai Mika Takasumi Yuki Sato Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of Medicine Department of Endoscopy Fukushima Medical University Hospital

AIM To investigate the factors predictive of failure when placing a second biliary self-expandable metallic stents(SEMSs). METHODS This study evaluated 65 patients with an unresectable malignant hilar biliary obstruction who were examined in our hospital. Sixty-two of these patients were recruited to the study and divided into two groups: the success group, which consisted of patients in whom a stent-in-stent SEMS had been placed successfully, and the failure group, which consisted of patients in whom the stent-in-stent SEMS had not been placed successfully. We compared the characteristics of the patients, the stricture state of their biliary ducts, and the implemented endoscopic retrograde cholangiopancreatography(ERCP) procedures between the two *** The angle between the target biliary duct stricture and the first implanted SEMS was significantly larger in the failure group than in the success group. There were significantly fewer wire or dilation devices(ERCP catheter, dilator, or balloon catheter) passing the first SEMS cell in the failure group than in the success group. The cut-off value of the angle predicting stent-in-stent SEMS placement failure was 49.7 degrees according to the ROC curve(sensitivity 91.7%, specificity 61.2%). Furthermore, the angle was significantly smaller in patients with wire or dilation devices passing the first SEMS cell than in patients without wire or dilation devices passing the first SEMS cell. CONCLUSION A large angle was identified as a predictive factor for failure of stent-in-stent SEMS placement.

关键词： Endoscopic stent-in-stent self-expandable metallic stent placement Predictive factor Endoscopic retrograde cholangiopancreatography Malignant hilar biliary obstruction Self-expandable metallic stent

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Pancreatic stents for the prevention of post-endoscopic retrograde cholangiopancreatography pancreatitis should be inserted up to the pancreatic body or tail

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World Journal of Gastroenterology 2018年第22期24卷 2392-2399页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama Yuki Sato Hiroki Irie ko watanabe Jun Nakamura Hitomi Kikuchi Yuichi Waragai Mika Takasumi Takuto Hikichi Hiromasa Ohira Department of Gastroenterology School of Medicine Fukushima Medical University Department of Endoscopy Fukushima Medical University Hospital

AIM To investigate the location to which a pancreatic stent should be inserted to prevent post-endoscopic retrograde cholangiopancreatography(ERCP) pancreatitis(PEP).METHODS Over a ten-year period at our hospital, 296 patients underwent their first ERCP procedure and had a pancreatic stent inserted; this study included 147 patients who had ERCP performed primarily for biliary investigation and had a pancreatic stent inserted to prevent PEP. We dividedthese patients into two groups: 131 patients with a stent inserted into the pancreatic head(head group) and 16 patients with a stent inserted up to the pancreatic body or tail(body/tail group). Patient characteristics and ERCP factors were compared between the *** Pancreatic amylase isoenzyme(p-AMY) levels in the head group were significantly higher than those in the body/tail group [138.5(7.0-2086) vs 78.5(5.0-1266.5), P = 0.03] [median(range)]. No cases of PEP were detected in the body/tail group [head group, 12(9.2%)]. Of the risk factors for post-ERCP hyperamylasemia(≥ p-AMY median, 131 IU/L), procedure time ≥ 60 min [odds ratio(OR) 2.65, 95%CI: 1.17-6.02, P = 0.02) and stent insertion into the pancreatic head(OR 3.80, 95%CI: 1.12-12.9, P = 0.03) were identified as independent risk factors by multivariate *** Stent insertion up to the pancreatic body or tail reduces the risk of post-ERCP hyperamylasemia and may reduce the risk of PEP.

关键词： Pancreatic stent Endoscopic retrograde cholangiopancreatography Post-endoscopic retrograde cholangiopancreatography pancreatitis Post-endoscopic retrograde cholangiopancreatography hyperamylasemia Pancreatic body or tail

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Can the wet suction technique change the efficacy of endoscopic ultrasound-guided fine-needle aspiration for diagnosing autoimmune pancreatitis type 1? A prospective single-arm study

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World Journal of Clinical Cases 2020年第1期8卷 88-96页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama Yuki Sato Hiroki Irie ko watanabe Jun Nakamura Hitomi Kikuchi Mika Takasumi Minami Hashimoto Tsunetaka Kato Takuto Hikichi Kenji Notohara Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of MedicineFukushima 960-1295Japan Department of Endoscopy Fukushima Medical University HospitalFukushima 960-1295Japan Department of Anatomic Pathology Kurashiki Central HospitalKurashiki 710-8602Japan

BACKGROUND Other than surgery,endoscopic ultrasound-guided fine-needle aspiration(EUSFNA)is the only procedure for histologically diagnosing autoimmune pancreatitis(AIP).However,adequate specimens are difficult to ***,more adequate specimens were reported to be obtained with EUS-FNA with a wet suction technique(WEST)than with conventional *** To histologically diagnose AIP by EUS-FNA with a *** Eleven patients with possible type 1 AIP between February 2016 and August 2018 underwent EUS-FNA with a WEST(WEST group),with four punctures by 19 or 22 G *** a historical control,23 type 1 AIP patients who underwent no fewer than four punctures with 19 or 22 G needles were enrolled(DRY group).Patient characteristics and histological findings were compared between the two *** Three histopathological factors according to the International Consensus Diagnostic Criteria were significantly greater in the WEST group than the DRY group[lymphoplasmacytic infiltrate without granulocytic infiltration:9(81.8%)vs 6(26.1%),P=0.003,storiform fibrosis:5(45.5%)vs 1(4.3%),P=0.008,abundant(>10 cells/HPF)IgG4-positive cells:7(63.6%)vs 5(21.7%),P=0.026].Level 1 or level 2 histopathological findings were observed more often in the WEST group than in the DRY group[8(72.7%)vs 3(13.0%),P=0.001].CONCLUSION EUS-FNA with a WEST was more successful than standard EUS-FNA in histologically diagnosing AIP.

关键词： Autoimmune pancreatitis Endoscopic ultrasound-guided fine needle aspiration Wet suction technique

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Push vs pull method for endoscopic ultrasound-guided fine needle aspiration of pancreatic head lesions: Propensity score matching analysis

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World Journal of Gastroenterology 2018年第27期24卷 3006-3012页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama Yuki Sato Hiroki Irie ko watanabe Jun Nakamura Hitomi Kikuchi Yuichi Waragai Mika Takasumi Minami Hashimoto Yuko Hashimoto Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of Medicine Department of Endoscopy Fukushima Medical University Hospital Department of Diagnostic Pathology Fukushima Medical University

AIM To evaluate the efficacy of endoscopic ultrasoundguided fine needle aspiration(EUS-FNA) of pancreatic head cancer when pushing(push method) or pulling the echoendoscope(pull method).METHODS Overall, 566 pancreatic cancer patients had their first EUS-FNA between February 2001 and December 2017. Among them, 201 who underwent EUS-FNA for pancreatic head lesions were included in this study. EUS-FNA was performed by the push method in 85 patients, the pull method in 101 patients and both the push and pull methods in 15 patients. After propensity score matching(age, sex, tumor diameter, and FNA needle), 85 patients each were stratified into the push and pull groups. Patient characteristics and EUSFNA-related factors were compared between the two *** Patient characteristics were not significantly different between the two groups. The distance to lesion was significantly longer in the push group than in the pull group(13.9 ± 4.9 mm vs 7.0 ± 4.9 mm, P < 0.01). The push method was a significant factor influencing the distance to lesion(≥ median 10 mm)(P < 0.01). Additionally, tumor diameter ≥ 25 mm(OR = 1.91, 95%CI: 1.02-3.58, P = 0.043) and the push method(OR = 1.91, 95%CI: 1.03-3.55, P = 0.04) were significant factors contributing to the histological diagnosis of *** The pull method shortened the distance between the endoscope and the lesion and facilitated EUS-FNA of pancreatic head cancer. The push method contributed to the histological diagnosis of pancreatic head cancer using EUS-FNA specimens.

关键词： Endoscopic ultrasound-guided fine needle aspiration Pancreatic head Pancreatic cancer Push method Pull method

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Dysbiosis of the duodenal microbiota as a diagnostic marker for pancreaticobiliary cancer

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World Journal of Gastrointestinal Oncology 2021年第12期13卷 2088-2100页

作者： Mitsuru Sugimoto Kazumichi Abe Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama Yuki Sato Hiroki Irie ko watanabe Jun Nakamura Hitomi Kikuchi Mika Takasumi Minami Hashimoto Tsunetaka Kato Ryoichiro kobashi Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical University School of MedicineFukushima 960-1295Japan Department of Endoscopy Fukushima Medical University HospitalFukushima 960-1295Japan

BACKGROUND Pancreaticobiliary cancer(PB Ca)is a lethal disease,and a useful diagnostic marker is urgently needed.A correlation between the human microbiota and malignant gastrointestinal diseases was recently *** To investigate the efficacy of the duodenal microbiota for diagnosing PB *** We recruited 22 patients with benign pancreaticobiliary diseases(benign group)and 12 patients with PB Ca(malignant group).The duodenal microbiota of each patient was analyzed by the 16S rDNA terminal restriction fragment length polymorphism *** characteristics,tumor markers,and relative abundances of the duodenal microbiota were compared between the benign and malignant *** Cancer antigen 19-9(CA19-9),Bifidobacterium,Clostridium cluster XVIII,and Prevotella levels differed significantly between the benign and malignant *** cluster XVIII had the greatest area under the receiver operating characteristic curve(AUC)among the four factors with respect to diagnosing PB Ca(cutoff value:3.038%;sensitivity:58.3%;specificity:95.2%;AUC:0.81).The combination of Clostridium cluster XVIII(cutoff value:3.038%)and CA19-9 Levels(cutoff value:18.8 U/mL)showed 91.7%sensitivity and 71.4%specificity for diagnosing PB *** The duodenal microbiota may be useful for PB Ca screening.

关键词： Pancreaticobiliary cancer Diagnostic marker Duodenal microbiota Clostridium cluster XVIII Cancer antigen 19-9

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Pancreatic neuroendocrine tumor Grade 1 patients followed up without surgery:Case series

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World Journal of Clinical Oncology 2017年第3期8卷 293-299页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki konno Hiroyuki Asama ko watanabe Jun Nakamura Hitomi Kikuchi Yuichi Waragai Mika Takasumi Satoshi Kawana Yuko Hashimoto Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of Medicine Department of Endoscopy Fukushima Medical University Hospital Department of Diagnostic Pathology Fukushima Medical UniversitySchool of Medicine

Among the three grades of neuroendocrine tumors(NETs),the prognosis for Grade 1(G1) with surgery is very ***,we evaluated the prognoses of pancreatic NET(PNET) G1 patients without surgery.A total of 8 patients who were diagnosed with NET G1,with an observation period of more than 6 mo until surgery or without surgery,were *** patients who underwent surgery were ultimately diagnosed using specimens obtained during the surgery,whereas the patients who did not undergo surgery were diagnosed using specimens obtained by endoscopic ultrasonography-guided fine needle ***,we mainly evaluated the observation period and tumor *** observation period for the five cases with surgery ranged from 6-80 mo,and tumor growth was observed in one *** contrast,the observation period for the three cases without surgery ranged from 17-54 mo,and tumor growth was not ***,although the first-choice treatment for NETs is surgery,our experience includes certain NET G1 patients who were followed up without surgery.

关键词： Pancreatic neuroendocrine tumors Metastasis Neuroendocrine tumors Grade 1 Follow-up Surgery

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Efficacy of endoscopic ultrasonography-guided fine needle aspiration for pancreatic neuroendocrine tumor grading

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World Journal of Gastroenterology 2015年第26期21卷 8118-8124页

作者： Mitsuru Sugimoto Tadayuki Takagi Takuto Hikichi Rei Suzuki ko watanabe Jun Nakamura Hitomi Kikuchi Naoki konno Yuichi Waragai Hiroyuki Asama Mika Takasumi Hiroshi watanabe Katsutoshi Obara Hiromasa Ohira Department of Gastroenterology and Rheumatology Fukushima Medical UniversitySchool of Medicine Department of Endoscopy Fukushima Medical University Hospital

AIM: To evaluate the efficacy of endoscopic ultrasonography-guided fine needle aspiration(EUS-FNA) for grading pancreatic neuroendocrine tumors(PNETs).METHODS: A total of 22 patients were diagnosed with PNET by EUS-FNA between October 2001 and December 2013 at Fukushima Medical University *** these cases,we targeted 10 PNET patients who were evaluated according to the World Health Organization(WHO) 2010 *** was performed in eight patients,and chemotherapy was performed in two patients due to multiple liver *** obtained by EUS-FNA were first stained with hematoxylin and eosin and then stained with chromogranin,synaptophysin,CD56,and *** specimens were graded by the Ki-67 index according to the WHO 2010 *** obtained by surgery were graded by the Ki-67 indexand mitotic count(WHO 2010 classification).For the eight specimens obtained by EUS-FNA,the Ki-67 index results were compared with those obtained by *** the two cases treated with chemotherapy,the effects and prognoses were ***: The sampling rate for histological diagnosis by EUS-FNA was 100%.No adverse effects were *** concordance rate between specimens obtained by EUS-FNA and surgery was 87.5%(7/8).Fo r t h e t w o c a s e s t re a t e d w i t h c h e m o t h e ra p y,case 1 received somatostatin analog therapy and transcatheter arterial infusion(TAI) targeting multiple liver *** treatment consisted of *** chemotherapy,the primary tumor remained unconfirmed,although the multiple liver metastases diminished *** 2 was classified as neuroendocrine carcinoma(NEC) according to the Ki-67 index of a specimen obtained by EUS-FNA; therefore,cisplatin and irinotecan therapy was ***,severe adverse effects,including renal failure and diarrhea,were observed,and the therapy regimen was changed to cisplatin and *** targeting multiple liver metastases was perfor

关键词： Pancreatic neuroendocrine tumor Endoscopicultrasonography-guided fine needle aspiration Ki-67index World Health Organization classification 2010 Chemotherapy

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Endoscopic therapy for esophageal hematoma with blue rubber bleb nevus syndrome

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World Journal of Gastrointestinal Endoscopy 2014年第12期6卷 630-634页

作者： Mika Takasumi Takuto Hikichi Tadayuki Takagi Masaki Sato Rei Suzuki ko watanabe Jun Nakamura Mitsuru Sugimoto Yuichi Waragai Hitomi Kikuchi Naoki konno Hiroshi watanabe Katsutoshi Obara Hiromasa Ohira Department of Gastroenterology and Rheumatology Fukushima Medical University School of Medicine Department of Endoscopy Fukushima Medical University Hospital

A 57-year-old woman previously diagnosed with blue rubber bleb nevus syndrome(BRBNS) reported hematemesis. BRBNS is a rare vascular anomaly syndrome consisting of multifocal hemangiomas of the skin and gastrointestinal(GI) tract but her GI tract had never been examined. An upper gastrointestinal endoscopy revealed a large bleeding esophageal hematoma positioned between the thoracic esophagus and the gastric cardia. An endoscopic injection of polidocanol was used to stop the hematoma from bleeding. The hematoma was incised using the injectionneedle to reduce the pressure within it. Finally, argon plasma coagulation(APC) was applied to the edge of the incision. The esophageal hematoma disappeared seven days later. Two months after the endoscopic the rapy, the eso phage alulcerhealed and the hemangioma did not relapse. This rare case of a large esophageal hematoma originating from a hemangioma with BRBNS was treated using a combination of endoscopic therapy with polidocanol injection, incision, and APC.

关键词： Blue rubber bleb nevus syndrome Endoscopic injection sclerotherapy Incision Esophageal hematoma Esophageal hemangioma

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Appropriate number of biliary biopsies and endoscopic retrograde cholangiopancreatography sessions for diagnosing biliary tract cancer

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World Journal of Gastrointestinal Endoscopy 2019年第3期11卷 231-238页

作者： Tadayuki Takagi Mitsuru Sugimoto Rei Suzuki Naoki konno Hiroyuki Asama Yuki Sato Hiroki Irie ko watanabe Jun Nakamura Hitomi Kikuchi Mika Takasumi Minami Hashimoto Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of MedicineFukushima 960-1247Japan Department of Endoscopy Fukushima Medical University HospitalFukushima 960-1247Japan 不详

BACKGROUND Biliary ductal cancer(BDC) is a lethal disease; however, diagnosing BDC is challenging. Biliary biopsies are performed to pathologically diagnose BDC, but the appropriate parameters for biliary biopsy [number of biliary biopsies, number of endoscopic retrograde cholangiopancreatography(ERCP) sessions, etc.] are *** To clarify what constitutes an adequate method for biliary *** In total, 95 patients who underwent endoscopic biliary biopsy without choledochoscopy and who were pathologically diagnosed with BDC were enrolled in this study. The patients were divided into two groups. Seventy-six patients who were diagnosed by biliary biopsy were defined as the positive group(P group), and nineteen patients who were not diagnosed by biliary biopsy were defined as the negative group(N group). The patient characteristics and ERCP-related procedures were compared between the P and N *** The numbers of ERCP sessions and biliary biopsies were significantly different between the two groups [ERCP sessions(one/two), P group 72/4 vs N group15/4, P value = 0.048; number of biliary biopsies, P group 2(1-6) vs N group 2(1-7), P value = 0.039]. In a multivariate analysis, fewer than 2 ERCP sessions was an independent factor influencing the positivity of the biliary *** This study clarified that ERCP and biliary ductal biopsy should only be performed once. If biliary cancer is not pathologically diagnosed after the first ERCP session, other methods(Endoscopic ultrasonography-guided fine needle aspiration or choledochoscopy-guided biliary ductal biopsy) should be employed.

关键词： Biliary ductal cancer Biliary biopsy Endoscopic retrograde cholangiopancreatography Endoscopic ultrasonography-guided fine needle aspiration Choledochoscopy

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