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| 1 | Risk factors for bleeding after endoscopic submucosal dissection for gastric lesions显示文摘AIM:To assess risk factors for bleeding after gastric endoscopic submucosal dissection(ESD) and to develop preventive measures.METHODS:This retrospective study was performed in a tertiary referral center.A total of 328 patients underwent ESD for 398 gastric neoplasms between July 2007 and June 2009.The main outcome was association between post-ESD bleeding and the following:age;sex;comorbidities;daily use of medicine potentially related to gastric injury/bleeding;location,size,and histological depth of lesions;ulceration;experience of operator coagulating the ulcer floor,and duration of operation.We also determined the relationship between the location of post-ESD bleeding and risk factors for hemorrhage.RESULTS:Univariate analysis revealed significant risk factors:tumor location [odds ratio(OR),2.86;95% CI:1.21-6.79,P=0.024],coagulator experience(OR,4.29;95% CI:1.43-12.86,P=0.009),and medicine potentially related to gastric injury/bleeding(OR,2.80;95% CI:1.14-6.90,P=0.039).Multivariate logistic regression analysis confirmed significant,independent risk factors:tumor in lower third of stomach(OR,2.47;95% CI:1.02-5.96,P=0.044),beginner coagulator(OR,3.93;95% CI:1.29-11.9,P=0.016),and medicine(OR,2.76;95% CI:1.09-6.98,P=0.032).We classif ied cases of post-ESD bleeding into two groups(bleeding at the ulcer margin vs bleeding at the center) and found that bleeding at the margin occurred more frequently with beginner coagulators compared with experts(OR,16.00;95% CI:1.22-210.59,P=0.040).CONCLUSION:Beginner coagulators,tumor in the antrum,and medicines were significant risk factors for post-ESD bleeding.Bleeding at the ulcer margin frequently occurred with beginner operators. | Yosuke Tsuji Ken Ohata Takafumi Ito Hideyuki Chiba Tomohiko Ohya Toshiaki Gunji Nobuyuki Matsuhashi | 2010 | World Journal of Gastroenterology2010，16，23： | 60 |
| 2 | Bleeding after endoscopic submucosal dissection: Risk factors and preventive methods显示文摘Endoscopic submucosal dissection(ESD) has become widely accepted as a standard method of treatment for superficial gastrointestinal neoplasms because it enables en block resection even for large lesions or fibrotic lesions with minimal invasiveness, and decreases the local recurrence rate. Moreover, specimens resected in an en block fashion enable accurate histological assessment. Taking these factors into consideration, ESD seems to be more advantageous than conventional endoscopic mucosal resection(EMR), but the associated risks of perioperative adverse events are higher than in EMR. Bleeding after ESD is the most frequent among these adverse events. Although post-ESD bleeding can be controlled by endoscopic hemostasis in most cases, it may lead to serious conditions including hemorrhagic shock. Even with preventive methods including administration of acid secretion inhibitors and preventive hemostasis, post-ESD bleeding cannot be completely prevented. In addition high-risk cases for post-ESD bleeding, which include cases with the use of antithrombotic agents or which require large resection, are increasing. Although there have been many reports about associated risk factors and methods of preventing post-ESD bleeding, many issues remain unsolved. Therefore, in this review, we have overviewed risk factors and methods of preventing post-ESD bleeding from previous studies. Endoscopists should have sufficient knowledge of these risk factors and preventive methods when performing ESD. | Yosuke Kataoka Yosuke Tsuji Yoshiki Sakaguchi Chihiro Minatsuki Itsuko Asada-Hirayama Keiko Niimi Satoshi Ono Shinya Kodashima Nobutake Yamamichi Mitsuhiro Fujishiro Kazuhiko Koike | 2016 | World Journal of Gastroenterology2016，22，26： | 16 |
| 3 | Prospective controlled study on the effects of polyethylene glycol in capsule endoscopy显示文摘AIM:To prospectively confirm whether a small amount of polyethylene glycol(PEG)ingested after swallowing endoscopy capsule improves image quality and completion rate.METHODS:Forty-four consecutive patients referred to us for capsule endoscopy(CE)were randomized to two groups.All patients were restricted to clear fluids for 12 h before the examination.Patients in group A(22 cases)received no additional preparation,while those in group B(20 cases)ingested 500 mL of PEG within a 2 h period starting 30 min after swallowing the capsule.Clear fluids and meals were allowed 2 h and 4 h after capsule ingestion,respectively.Image quality was assessed as the percentage of visualized bowel surface area as follows:1:<25%;2:25%-49%;3:50%-74%;4:75%-89%;5:>90%.The small bowel record was divided into five segments by time,and the score for each segment was evaluated.All CE examinations were performed with the Pillcam SB capsule endoscopy sys-tem(Given Imaging Co.Ltd.,Yoqnem).RESULTS:This study ended in December 2009,because sample size was considered large enough.A total of 44 patients were enrolled.Two patients in group B were excluded from the analysis because small bowel images could not be obtained from these patients;one had a full stomach,while the other presented with a massive gastric bleed.Thus,22 patients from group A and 20 patients from group B completed the study.There was no significant difference in age(P=0.22),sex(P=0.31),and indication for CE.No significant adverse events occurred in any of the study patients.In group A,image quality deteriorated as the capsule progressed distally.However,in group B,image quality was maintained to the distal small bowel.In each of the five segments,the visibility score was significantly higher in group B than in group A(segment 1:4.3± 0.7vs 4.7±0.5,P=0.03;segment 2:4.2±0.9vs 4.8 ±0.4,P=0.01;segment 3:4.0±1.0 vs 4.6±0.7,P =0.04;segment 4:3.6±1.1 vs 4.5±0.6,P=0.003;segment 5:2.7±1.0vs 4.4±0.8,P=0.00004).Thus,the use of PEG during CE examination significantly improved image quality in all time segments,and this effect was more pronounced in the distal ileum.The completion rate to the cecum was not significantly different between groups A and B(81.8%vs 85.0%,P =0.89).There was no difference in the gastric transit time between groups(36.2±35.0 min vs 54.0±56.6 min,P=0.23),but the small bowel transit time was significantly longer in group A than in group B(246.0± 107.0 minvs 171.0±104.0 min,P=0.04).CONCLUSION:The ingestion of a small amount of PEG after the swallowing of an endoscopy capsule significantly improved CE image quality,but did not enhance the completion rate to the cecum. | Takafumi Ito Ken Ohata Akiko Ono Hideyuki Chiba Yosuke Tsuji Hajime Sato Nobuyuki Matsuhashi | 2012 | World Journal of Gastroenterology2012，18，15： | 7 |
| 4 | Endoscopic tissue shielding method with polyglycolic acid sheets and fibrin glue to cover wounds after colorectal endoscopic submucosal dissection (with video)显示文摘 | Yosuke Tsuji Ken Ohata Toshiaki Gunji Meiko Shozushima Jun Hamanaka Akiko Ohno Takafumi Ito Nobutake Yamamichi Mitsuhiro Fujishiro Nobuyuki Matsuhashi Kazuhiko Koike | 2014 | Gastrointestinal Endoscopy2014，，1： | 2 |
| 5 | A Multicenter Survey of the Management After Gastric Endoscopic Submucosal Dissection Related to Postoperative Bleeding显示文摘 | Osamu Goto Mitsuhiro Fujishiro Ichiro Oda Naomi Kakushima Yorimasa Yamamoto Yosuke Tsuji Ken Ohata Takashi Fujiwara Junko Fujiwara Naoki Ishii Chizu Yokoi Shinichi Miyamoto Toshiyuki Itoh Shinji Morishita Takuji Gotoda Kazuhiko Koike | 2012 | Digestive Diseases and Sciences2012，，2： | 2 |
| 6 | Magnifying endoscopy with narrow-band imaging helps determine the management of gastric adenomas显示文摘 | Yosuke Tsuji Ken Ohata Masau Sekiguchi Akiko Ohno Takafumi Ito Hideyuki Chiba Toshiaki Gunji Jun-ichi Fukushima Nobutake Yamamichi Mitsuhiro Fujishiro Nobuyuki Matsuhashi Kazuhiko Koike | 2012 | Gastric Cancer2012，，4： | 2 |
| 7 | Polyglycolic acid sheets and fibrin glue decrease the risk of bleeding after endoscopic submucosal dissection of gastric neoplasms (with video)显示文摘 | Yosuke Tsuji Mitsuhiro Fujishiro Shinya Kodashima Satoshi Ono Keiko Niimi Satoshi Mochizuki Itsuko Asada-Hirayama Rie Matsuda Chihiro Minatsuki Chiemi Nakayama Yu Takahashi Yoshiki Sakaguchi Nobutake Yamamichi Kazuhiko Koike | 2014 | Gastrointestinal Endoscopy2014，，： | 2 |
| 8 | Sessile serrated adenoma detection rate is correlated with adenoma detection rate显示文摘AIM To investigated the association between adenoma detection rate(ADR) and sessile serrated ADR(SSADR) and significant predictors for sessile serrated adenomas(SSA) detection.METHODS This study is a retrospective, single-center analysis. Total colonoscopies performed by the gastroenterologists at the University of Tokyo Hospital between January and December 2014 were retrospectively identified. Polyps were classified as low-grade or high-grade adenoma, cancer, SSA, or SSA with cytological dysplasia, and the prevalence of each type of polyp was investigated. Predictors of adenoma and SSA detection were examined using logistic generalized estimating equation models. The association between ADR and SSADR for each gastroenterologist was investigated by calculating a correlation coefficient weighted by the number of each gastroenterologist's examination.RESULTS A total of 3691 colonoscopies performed by 35 gastroenterologists were assessed. Overall, 978 (26.5%) low-and 84 (2.2%) high-grade adenomas, 81 (2.2%) cancers, 66 (1.8%) SSAs, and 2 (0.1%) SSAs with cytological dysplasia were detected. Overall ADR was 29.5%(men 33.2%, women 23.8%) and overall SSADR was 1.8%(men 1.7%, women 2.1%). In addition, 672 low-grade adenomas (68.8% of all the detected lowgrade adenomas), 58 (69.9%) high-grade adenomas, 29 (34.5%) cancers, 52 (78.8%) SSAs, and 2 (100%) SSAs with cytological dysplasia were found in the proximal colon. Adenoma detection was the only significant predictor of SSA detection (adjusted OR: 2.53, 95%CI: 1.53-4.20; P < 0.001). The correlation coefficient between ADR and SSADR weighted by the number of each gastroenterologist's examinations was 0.606(P < 0.001).CONCLUSION Our results demonstrated that ADR is correlated to SSADR. In addition, patients with adenomas had a higher prevalence of SSAs than those without adenomas. | Daisuke Ohki Yosuke Tsuji Tomohiro Shinozaki Yoshiki Sakaguchi Chihiro Minatsuki Hiroto Kinoshita Keiko Niimi Satoshi Ono Yoku Hayakawa Shuntaro Yoshida Atsuo Yamada Shinya Kodashima Nobutake Yamamichi Yoshihiro Hirata Tetsuo Ushiku Mitsuhiro Fujishiro Masashi Fukayama Kazuhiko Koike | 2018 | World Journal of Gastrointestinal Oncology2018，10，3： | 2 |
| 9 | Rapid and reliable screening method for detection of 70 pesticides in whole blood by gas chromatography–mass spectrometry using a constructed calibration-locking database显示文摘 | Keiko Kudo Kumi Nagamatsu Takahiro Umehara Yosuke Usumoto Naomi Sameshima Akiko Tsuji Noriaki Ikeda | 2012 | Legal Medicine2012，，2： | 1 |
| 10 | Construction of calibration-locking databases for rapid and reliable drug screening by gas chromatography-mass spectrometry显示文摘 | Keiko Kudo Tomomi Ishida Wakako Hikiji Makiko Hayashida Kyoko Uekusa Yosuke Usumoto Akiko Tsuji Noriaki Ikeda | 2009 | Forensic Toxicology2009，，1： | 1 |
| 11 | Magnifying endoscopy with narrow-band imaging helps determine the management of gastric adenomas显示文摘 | Yosuke Tsuji Ken Ohata Masau Sekiguchi Akiko Ohno Takafumi Ito Hideyuki Chiba Toshiaki Gunji Jun-ichi Fukushima Nobutake Yamamichi Mitsuhiro Fujishiro Nobuyuki Matsuhashi Kazuhiko Koike | 2012 | Gastric Cancer2012，，4： | 1 |
| 12 | Consumer Satisfaction with an Action Sports Event 显示文摘 | Yosuke Tsuji Gregg Bennett James Zhang | 2007 | Sport Marketing Quarterly2007，16，： | 1 |
| 13 | Analyzing the Effects of Advertising Type and Antecedents on Attitude Towards Advertising in Aport显示文摘 | Gregg Bennett Mauricio Ferreira Yosuke Tsuji | 2006 | International Journal of Spins Marketing &Sponsorship2006，，10： | 1 |
| 14 | Comparison of endoscopic gastritis based on Kyoto classification between diffuse and intestinal gastric cancer显示文摘BACKGROUND Gastric cancers can be categorized into diffuse-and intestinal-type cancers based on the Lauren histopathological classification.These two subtypes show distinct differences in metastasis frequency,treatment application,and prognosis.Therefore,accurately assessing the Lauren classification before treatment is crucial.However,studies on the gastritis endoscopy-based Kyoto classification have recently shown that endoscopic diagnosis has improved.AIM To investigate patient characteristics including endoscopic gastritis associated with diffuse-and intestinal-type gastric cancers in Helicobacter pylori(H.pylori)-infected patients.METHODS Patients who underwent esophagogastroduodenoscopy at the Toyoshima Endoscopy Clinic were enrolled.The Kyoto classification included atrophy,intestinal metaplasia,enlarged folds,nodularity,and diffuse redness.The effects of age,sex,and Kyoto classification score on gastric cancer according to the Lauren classification were analyzed.We developed the Lauren predictive background score based on the coefficients of a logistic regression model using variables independently associated with the Lauren classification.Area under the receiver operative characteristic curve and diagnostic accuracy of this score were examined.RESULTS A total of 499 H.pylori-infected patients(49.6%males;average age:54.9 years)were enrolled;132 patients with gastric cancer(39 diffuse-and 93 intestinal-type cancers)and 367 cancer-free controls were eligible.Gastric cancer was independently associated with age≥65 years,high atrophy score,high intestinal metaplasia score,and low nodularity score when compared to the control.Factors independently associated with intestinal-type cancer were age≥65 years(coefficient:1.98),male sex(coefficient:1.02),high intestinal metaplasia score(coefficient:0.68),and low enlarged folds score(coefficient:-1.31)when compared to diffuse-type cancer.The Lauren predictive background score was defined as the sum of+2(age≥65 years),+1(male sex),+1(endoscopic intestinal metaplasia),and-1(endoscopic enlarged folds)points.Area under the receiver operative characteristic curve of the Lauren predictive background score was 0.828 for predicting intestinal-type cancer.With a cut-off value of+2,the sensitivity,specificity,and accuracy of the Lauren predictive background score were 81.7%,71.8%,and 78.8%,respectively.CONCLUSION Patient backgrounds,such as age,sex,endoscopic intestinal metaplasia,and endoscopic enlarged folds are useful for predicting the Lauren type of gastric cancer. | Osamu Toyoshima Toshihiro Nishizawa Shuntaro Yoshida Tomonori Aoki Fumiko Nagura Kosuke Sakitani Yosuke Tsuji Hayato Nakagawa Hidekazu Suzuki Kazuhiko Koike | 2021 | World Journal of Gastrointestinal Endoscopy2021，13，5： | 1 |
| 15 | An effective technique for delivery of polyglycolic acid sheet after endoscopic submucosal dissection of the esophagus: the clip and pull method显示文摘 | Satoshi Ono Yosuke Tsuji Mitsuhiro Fujishiro Shinya Kodashima Nobutake Yamamichi Kazuhiko Koike | 2014 | Endoscopy2014，，： | 1 |
| 16 | A Multicenter Survey of the Management After Gastric Endoscopic Submucosal Dissection Related to Postoperative Bleeding显示文摘 | Osamu Goto Mitsuhiro Fujishiro Ichiro Oda Naomi Kakushima Yorimasa Yamamoto Yosuke Tsuji Ken Ohata Takashi Fujiwara Junko Fujiwara Naoki Ishii Chizu Yokoi Shinichi Miyamoto Toshiyuki Itoh Shinji Morishita Takuji Gotoda Kazuhiko Koike | 2012 | Digestive Diseases and Sciences2012，，2： | 1 |
| 17 | Evaluation of safety of endoscopic biopsy without cessation of antithrombotic agents in Japan显示文摘 | Satoshi Ono Mitsuhiro Fujishiro Shinya Kodashima Yu Takahashi Chihiro Minatsuki Rie Mikami-Matsuda Itsuko Asada-Hirayama Maki Konno-Shimizu Yosuke Tsuji Satoshi Mochizuki Keiko Niimi Nobutake Yamamichi Makoto Kaneko Yutaka Yatomi Kazuhiko Koike | 2012 | Journal of Gastroenterology2012，，7： | 1 |
| 18 | Evaluation of preferable insertion routes for esophagogastroduodenoscopy using ultrathin endoscopes显示文摘AIM:To evaluate the discomfort associated with esophagogastroduodenoscopy(EGD)using an ultrathin endoscope through different insertion routes.METHODS:This study(January 2012-March 2013)included 1971 consecutive patients[male/female(M/F),1158/813,57.5±11.9 years]who visited a single institute for annual health checkups.Transnasal EGD was performed in 1394 patients and transoral EGD in 577.EGD-associated discomfort was assessed using a visual analog scale score(VAS score:0-10).RESULTS:Multivariate analysis revealed gender(M vs F:4.02±2.15 vs 5.06±2.43)as the only independent predictor of the VAS score in 180 patients who underwent EGD for the first time;whereas it revealed gender(M vs F 3.60±2.20 vs 4.84±2.37),operator,age group(A:<39 years;B:40-49 years;C:50-59years;D:60-69 years;E:>70 years;A/B/C/D/E:4.99±2.32/4.34±2.49/4.19±2.31/3.99±2.27/3.63±2.31),and type of insertion as independent predictors in the remaining patients.Subanalysis for gender,age group,and insertion route revealed that the VAS score decreased with age regardless of gender and insertion route,was high in female patients regardless of age and insertion route,and was low in males aged over60 years who underwent transoral insertion.CONCLUSION:Although comprehensive analysis revealed that the insertion route may not be an independent predictor of the VAS score,transoral insertion may reduce EGD-associated discomfort in elderly patients. | Satoshi Ono Keiko Niimi Mitsuhiro Fujishiro Yu Takahashi Yoshiki Sakaguchi Chiemi Nakayama Chihiro Minatsuki Rie Matsuda Itsuko Hirayama-Asada Yosuke Tsuji Satoshi Mochizuki Shinya Kodashima Nobutake Yamamichi Atsuko Ozeki Lumine Matsumoto Yumiko Ohike Tsutomu Yamazaki Kazuhiko Koike | 2014 | World Journal of Gastroenterology2014，20，17： | 0 |
| 19 | Impact of looping on premalignant polyp detection during colonoscopy显示文摘BACKGROUND The presence of premalignant polyps on colonoscopy is an indicator of metachronous colorectal cancer.Looping during colonoscopy is associated with old age,female sex,and colonoscopy insertion time.However,the clinical significance of looping is not fully understood.We aimed to clarify the effect of looping on colorectal premalignant polyp detection.AIM To assess the effects of looping on premalignant polyp detection using logistic regression analyses.METHODS We retrospectively investigated patients who underwent colonoscopy at Toyoshima Endoscopy Clinic between May,2017 and October,2020.From the clinic’s endoscopy database,we extracted data on patient age,sex,endoscopist-assessed looping,colonoscopy duration,endoscopist experience,detection rate,and number of premalignant polyps.RESULTS We assessed 12259 patients(mean age,53.6 years;men,50.7%).Looping occurred in 54.3%of the patients.Mild and severe looping were noted in 4399 and 2253 patients,respectively.The detection rates of adenomas,advanced adenomas,high-risk adenomas,clinically significant serrated polyps(CSSPs),and sessile serrated lesions(SSLs)were 44.7%,2.0%,9.9%,8.9%and 3.5%,respectively.The mean numbers of adenomas and SSLs were 0.82 and 0.04,respectively.The detection rates of adenomas,high-risk adenomas,and CSSPs increased with looping severity(all P<0.001).The number of adenomas increased with looping severity(P<0.001).Multivariate analyses found that detection of adenomas,high-risk adenomas,and CSSPs was associated with severe looping(P<0.001,P<0.001,and P=0.007,respectively)regardless of age,sex,time required for colonoscope insertion and withdrawal,and endoscopist experience.CONCLUSION Looping severity was independently associated with high detection rates of premalignant polyps.Therefore,looping may predict the risk of metachronous colorectal cancer.Endoscopists should carefully examine the colorectum of patients with looping. | Osamu Toyoshima Toshihiro Nishizawa Shuntaro Yoshida Tatsuya Matsuno Toru Arano Ryo Kondo Kazunori Kinoshita Yuki Yasumi Yosuke Tsuji Mitsuhiro Fujishiro | 2022 | World Journal of Gastrointestinal Endoscopy2022，14，11： | 0 |
| 20 | Usefulness of continuous suction mouthpiece during esophagogastroduodenoscopy: A single-center, prospective,randomized study显示文摘AIM: To develop a new continuous suction mouthpiece(CSM) and evaluate its usefulness for screening esophagogastroduodenoscopy(EGD).METHODS: A total of 196 patients who were scheduled to undergo screening EGD were assigned to one of two groups: a group using the CSM and a group using a conventional mouthpiece. Extent of salivary flow,frequency of saliva suction, number of choking episodesduring the examination, and incidence of aspiration pneumonia after the examination were evaluated and compared between the two groups. Adverse events during and after EGD were also examined. In addition, the oral cavity was meticulously examined after the EGD.RESULTS: The same number of patients was randomly allocated to each group. There were no significant differences between the two groups in sex, age,biopsy procedure, duration of procedure and depth of sedation. Aspiration pneumonia and other significant adverse events were not observed in either group. The grade of extent of salivary flow was significantly lower in patients with the CSM than in patients with the conventional mouthpiece(P < 0.001). Although there was no significant difference, less frequent suctioning and fewer choking episodes were observed in patients with the CSM than in patients with the conventional mouthpiece(P = 0.082 and P = 0.084, respectively). In addition, there were no patients in the CSM group who required saliva suctioning during the procedure.CONCLUSION: Use of the CSM during screening EGD can reduce the extent of salivary flow. The device is expected to reduce complications and contamination with saliva. | Takao Maekita Jun Kato Yukihiko Nakatani Shotaro Enomoto Ema Takano Masahiro Tsuji Tsuyoshi Nakaya Kosaku Moribata Yosuke Muraki Naoki Shingaki Toru Niwa Hisanobu Deguchi Kazuki Ueda Izumi Inoue Mikitaka Iguchi Hideyuki Tamai Masao Ichinose | 2013 | World Journal of Gastrointestinal Endoscopy2013，5，10： | 0 |
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