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Sakaguchi H, Tanaka S, Abe H, Motomura D, Hori H, Toyonaga T, Kodama Y. A new treatment for blown-out myotomy, a diverticulum formed after peroral endoscopic myotomy. Endoscopy 2024; 56:E74-E75. [PMID: 38262463 PMCID: PMC10805619 DOI: 10.1055/a-2226-9356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Affiliation(s)
- Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Douglas Motomura
- Gastroenterology, The University of British Columbia, Vancouver, Canada
| | - Hitomi Hori
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Toyonaga
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Abe H, Sako T, Yamamoto Y, Ikeda A, Kawara F, Ose T, Takao T, Kitamura Y, Ariyoshi R, Morita Y, Ishida T, Ikegawa T, Ishida R, Yoshizaki T, Sakaguchi H, Toyonaga T, Kodama Y. Randomised controlled, patient-blinded, multicentre, superiority trial to evaluate the efficacy of the line-attached sheath-type traction device for endoscopic submucosal dissection in patients with superficial gastric neoplasms. BMJ Open 2024; 14:e078974. [PMID: 38631838 PMCID: PMC11029205 DOI: 10.1136/bmjopen-2023-078974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 04/02/2024] [Indexed: 04/19/2024] Open
Abstract
INTRODUCTION EndoTrac is a line-attached sheath-type traction device that enables us to control the direction and the force of traction during endoscopic submucosal dissection (ESD). The efficacy of EndoTrac for gastric ESD has not been fully verified. METHODS AND ANALYSIS The G-Trac study is a multicentre (nine general hospitals and two university hospitals in Japan) collaborative trial assessing the efficacy of EndoTrac for gastric ESDs. Patients with superficial gastric neoplasms will be enrolled and randomly assigned to undergo either conventional ESD or EndoTrac ESD. Allocation will be stratified according to tumour location, operator experience and tumour diameter at an allocation rate of 1:1. The type of endoknife used will be confirmed before randomisation. The primary outcome, procedure time, will be compared between the groups in both intention-to-treat and per-protocol analyses using the Wilcoxon rank sum test. The efficacy-related, safety-related and device-related outcomes will be assessed in the secondary analysis. The planned sample size of the 142 patients in the two groups will enable us to detect a difference with a power of 80% by using the Wilcoxon rank sum test, assuming an effect size of 0.54, asymptotic relative efficiency of 0.864 and a two-sided type 1 error rate of 5%. ETHICS AND DISSEMINATION This trial was approved by the certified review board of Kobe University (22 December 2022). The results from this trial will be disseminated through peer-review journals, presentations at national and international conferences, and data sharing with other researchers. TRIAL REGISTRATION NUMBER jRCT1052220166.
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Affiliation(s)
- Hirofumi Abe
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Tomoya Sako
- Department of Gastroenterology, Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
| | | | - Atsushi Ikeda
- Department of Gastroenterology, Sanda City Hospital, Sanda, Japan
| | - Fumiaki Kawara
- Department of Gastroenterology, Konan Medical Center, Kobe, Japan
| | - Takayuki Ose
- Department of Gastroenterology, Kitaharima Medical Center, Ono, Japan
| | - Toshitatsu Takao
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Yasuaki Kitamura
- Department of Gastroenterology, Yodogawa Christian Hospital, Osaka, Japan
| | - Ryusuke Ariyoshi
- Department of Gastroenterology, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan
| | - Yoshinori Morita
- Department of Gastroenterology, Kobe University International Clinical Cancer Research Center, Kobe, Japan
| | - Tsukasa Ishida
- Department of Gastroenterology, Akashi Medical Center, Akashi, Japan
| | - Takuya Ikegawa
- Department of Gastroenterology, Japanese Red Cross Kobe Hospital, Kobe, Japan
| | - Ryosuke Ishida
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Tetsuya Yoshizaki
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Department of Internal Medicine, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | | | - Yuzo Kodama
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
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Samejima Y, Yoshimura S, Okata Y, Sakaguchi H, Abe H, Tanaka S, Kodama Y, Bitoh Y. Peroral Endoscopic Myotomy in Pediatric Patients with Achalasia up to 12 Years of Age: A Pilot Study in a Single-Center Experience in Japan. Eur J Pediatr Surg 2024; 34:97-101. [PMID: 37595633 DOI: 10.1055/a-2156-5099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
Abstract
INTRODUCTION Peroral endoscopic myotomy (POEM) is a minimally invasive endoscopic procedure for achalasia; its indication has expanded from adults to children. We aimed to evaluate the postoperative efficacy and antireflex status of POEM in young children with achalasia aged 12 years or younger. PATIENTS AND METHODS: Pediatric patients with achalasia aged 18 years or younger who underwent POEM in our hospital between 2016 and 2021 were included and divided into two age groups: group A (≤ 12 years) and group B (13-18 years). The success rate (Eckardt score ≤ 3), endoscopic reflux findings, and antiacid use at 1 year postoperatively were compared between the groups. RESULTS Ten patients (four boys and six girls; Chicago classification type I: five, type II: four, and unclassified: one) were included. Mean age and preoperative Eckardt scores in groups A (n = 4) and B (n = 6) were 9.2 ± 3.0 versus 15.6 ± 0.6 years (p = 0.001) and 5.5 ± 3.9 versus 7.2 ± 3.7 (p = 0.509), respectively, and mean operative time and myotomy length were 51.3 ± 16.6 versus 52.5 ± 13.2 minutes (p = 0.898) and 10.8 ± 4.6 versus 9.8 ± 3.2 cm (p = 0.720), respectively. The 1-year success rate was 100% in both groups. Mild esophagitis (Los Angeles classification B) was endoscopically found in one patient in each group (16.7 vs. 25.0%, p = 0.714), and antiacid use was required in three patients (group A, two; group B, one; 50.0 vs. 16.7%, p = 0.500). CONCLUSION The success rate of POEM within 1 year in young children with achalasia aged 12 years or younger was equal to that in adolescent patients. However, young children tended to require antiacids 1 year postoperatively; therefore, long-term follow-up is necessary.
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Affiliation(s)
- Yoshitomo Samejima
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Shohei Yoshimura
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yuichi Okata
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
- Department of Internal Medicine, Tanaka Clinic, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yuko Bitoh
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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Abe H, Toyonaga T, Motomura D, Ishida R, Sakaguchi H, Yoshizaki T, Kodama Y. A novel strategy facilitating endoscopic submucosal dissection of proximal colonic lesions: the rubber band and sheath method. Endoscopy 2023; 55:E672-E673. [PMID: 37100416 PMCID: PMC10132934 DOI: 10.1055/a-2063-3291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Affiliation(s)
- Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Douglas Motomura
- Department of Endoscopy, Kobe University Hospital, Kobe, Japan
- Department of Gastroenterology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ryosuke Ishida
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tetsuya Yoshizaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Abe H, Motomura D, Tanaka S, Sakaguchi H, Tanabe H, Hori H, Toyonaga T, Kodama Y. Peroral endoscopic myotomy for a pediatric case of suspected congenital esophageal stenosis. VideoGIE 2023; 8:487-489. [PMID: 38155822 PMCID: PMC10751455 DOI: 10.1016/j.vgie.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
Video 1Peroral endoscopic myotomy for a pediatric case of suspected congenital esophageal stenosis.
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Affiliation(s)
- Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Douglas Motomura
- Department of Gastroenterology, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Endoscopy, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hiroshi Tanabe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hitomi Hori
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takashi Toyonaga
- Department of Endoscopy, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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Asahara H, Takao T, Asahara Y, Asahara M, Motomura D, Sakaguchi H, Yoshizaki T, Ikezawa N, Takao M, Morita Y, Toyonaga T, Komatsu M, Kushima R, Kodama Y. Clinicopathological Features and the Prevalence of Oxyntic Gland Neoplasm: A Single-center Retrospective Study. Intern Med 2023; 62:2763-2774. [PMID: 36792200 PMCID: PMC10602823 DOI: 10.2169/internalmedicine.0552-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/14/2022] [Indexed: 02/16/2023] Open
Abstract
Objective We explored the clinicopathological characteristics and disease frequency of oxyntic gland neoplasms (OGNs). Methods We retrospectively evaluated the data of patients pathologically diagnosed with OGN at an internal medicine clinic. Patients A total of 13,240 upper gastrointestinal endoscopies were performed on 7,488 patients between December 1, 2017, and March 31, 2021. Results We identified 27 patients with 30 histopathologically confirmed OGNs, yielding a disease frequency of 0.36% (27/7,488). Furthermore, multiple simultaneous lesions were found in 3 of 27 patients (11%). One (3.3%) of the 30 lesions was present in the antrum, whereas the remaining lesions occurred in the body of the stomach. Nine (33%) of the 27 patients had no history of Helicobacter pylori infection, whereas the remaining 18 (67%) were either currently or had been previously infected. Nevertheless, 27/30 lesions (90%) still occurred in non-atrophied regions. After endoscopic treatment, a histopathological examination of the resected specimens revealed submucosal infiltration in 8 (44%) of the 18 lesions; however, none of the lesions showed submucosal desmoplasia. For all patients with submucosal involvement, only observation was performed. There were no recurrent lesions found on follow-up. Conclusion The period prevalence of OGN was 0.36%, which is much higher than previously reported. The discovery of a small submucosal appearing lesion with a faded yellow or white color and dilated microvasculature, especially in a non-atrophic area of the stomach, should raise suspicion for an OGN, which can be endoscopically managed.
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Affiliation(s)
- Hikari Asahara
- Department of Gastroenterology, Kobe Red Cross Hospital, Japan
| | - Toshitatsu Takao
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | | | | | - Douglas Motomura
- Division of Gastroenterology, Department of Medicine, University of British Columbia, Canada
| | - Hiroya Sakaguchi
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | - Tetsuya Yoshizaki
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | - Nobuaki Ikezawa
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | - Madoka Takao
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | - Yoshinori Morita
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | - Takashi Toyonaga
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
| | - Masato Komatsu
- Division of Diagnostic Pathology, Kobe University Graduate School of Medicine, Japan
| | - Ryoji Kushima
- Department of Pathology, Shiga University of Medical Science Hospital, Japan
| | - Yuzo Kodama
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Japan
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Nakai T, Abe H, Tanaka S, Kawara F, Toyonaga T, Sakaguchi H, Ueda C, Ikezawa N, Tsuda K, Urakami S, Kodama Y. Risk-scoring system for predicting challenging cases of peroral endoscopic myotomy. Dig Endosc 2023; 35:729-735. [PMID: 36571213 DOI: 10.1111/den.14508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 12/22/2022] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Peroral endoscopic myotomy (POEM) is an effective treatment for esophageal motility disorders including achalasia and its variants. However, some surgeons have encountered challenging cases. This study aimed to develop a risk-scoring system to predict challenging cases of POEM. METHODS Consecutive patients who underwent POEM between April 2015 and March 2020 at our hospital were included in this single-center retrospective study. Challenging cases of POEM were defined as patients with any of the following: (i) procedure time ≥90 min; (ii) mucosal perforation; (iii) pneumothorax; and (iv) major bleeding. A risk-scoring system for predicting challenging cases was developed based on multivariate logistic regression and internal validation was performed using the bootstrap method. Clinical usefulness was evaluated using a decision curve analysis. RESULTS Of the 467 patients, 59 (12.6%) had challenging POEM. A risk-scoring system consisted of four variables: duration of symptoms ≥5 years (assigned score, 1 point), antithrombotics use (1 point), manometric diagnosis of achalasia variants (2 points), and dilation grade 3 (2 points). Our scoring system showed satisfactory discrimination (area under the receiver operating characteristic curve, 0.69; 95% confidence interval [CI] 0.61-0.77) and calibration (slope, 0.99; 95% CI 0.65-1.35). The decision curve analysis demonstrated its clinical usefulness. CONCLUSIONS We established a risk-scoring system to predict challenging cases of POEM. This scoring system may aid the selection of patients who require treatment from experienced surgeons.
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Affiliation(s)
- Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Fumiaki Kawara
- Division of Gastroenterology, Konan Medical Center, Hyogo, Japan
| | | | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Chise Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Kazunori Tsuda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
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Takayama H, Toyonaga T, Yoshizaki T, Abe H, Nakai T, Ueda C, Urakami S, Kaku H, Shimamoto Y, Matsumoto K, Tsuda K, Sakaguchi H, Baba S, Takihara H, Ikezawa N, Tanaka S, Takao M, Takao T, Morita Y, Kodama Y. Characteristics of Gastric Stasis due to Deformation after Endoscopic Submucosal Dissection in the Lower Part of the Stomach. Digestion 2023:1-8. [PMID: 36948167 DOI: 10.1159/000529316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 01/13/2023] [Indexed: 03/24/2023]
Abstract
INTRODUCTION Gastric stasis due to deformation occurs after endoscopic submucosal dissection in the lower part of the stomach. Endoscopic balloon dilation can improve gastric stasis due to stenosis; however, endoscopic balloon dilation cannot improve gastric stasis due to deformation. Furthermore, the characteristics of gastric stasis due to deformation are unknown. This study aimed to evaluate the characteristics of gastric stasis due to deformation after endoscopic submucosal dissection in the lower part of the stomach, focusing on the differences between stenosis and deformation. METHODS We retrospectively reviewed 41 patients with gastric stasis after endoscopic submucosal dissection in the lower part of the stomach. We evaluated the characteristics of cases with gastric stasis due to deformation, such as the risk factors of deformation and the rate of deformation in each group with risk factors. RESULTS Deformation was observed in 12% (5/41) of the patients with gastric stasis. All cases of deformation had a circumferential extent of the mucosal defect greater than 3/4. The number of cases with pyloric dissection was significantly lower in the deformation group than in the non-deformation group (0% vs. 72%; p = 0.004). The deformation group also had a significantly higher number of cases with angular dissection than the non-deformation group (100% vs. 17%; p < 0.001). Moreover, the deformation cases had a significantly larger specimen diameter (p < 0.001). Deformation was observed only in cases with angular and non-pyloric dissections. Deformation was not observed in cases with angular and pyloric dissections. CONCLUSIONS All cases of gastric stasis due to deformation had a circumferential extent of the mucosal defect greater than 3/4. Deformation was also likely to occur in cases with a larger dissection that exceeded the angular region without pyloric dissection.
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Affiliation(s)
- Hiroshi Takayama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan,
| | - Takashi Toyonaga
- Department of Endoscopy, Kobe University Hospital, Kobe, Japan
- Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Tetsuya Yoshizaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Chise Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hidetoshi Kaku
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yusaku Shimamoto
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kei Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazunori Tsuda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinichi Baba
- Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Hiroshi Takihara
- Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Madoka Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Takayama H, Takao T, Masumura R, Yamaguchi Y, Yonezawa R, Sakaguchi H, Morita Y, Toyonaga T, Izumiyama K, Kodama Y. Speech Recognition System Generates Highly Accurate Endoscopic Reports in Clinical Practice. Intern Med 2023; 62:153-157. [PMID: 35732450 PMCID: PMC9908383 DOI: 10.2169/internalmedicine.9592-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Objective Endoscopic reports are conventionally written at the end of each procedure, and the endoscopist must complete the report from memory. To make endoscopic reporting more efficient, we developed a new speech recognition (SR) system that generates highly accurate endoscopic reports based on structured data entry. We conducted a pilot study to examine the performance of this SR system in an actual endoscopy setting with various types of background noise. Methods In this prospective observational pilot study, participants who underwent upper endoscopy with our SR system were included. The primary outcome was the correct recognition rate of the system. We compared the findings generated by the SR system with the findings in the handwritten report prepared by the endoscopist. The initial correct recognition rate, number of revisions, finding registration time, and endoscopy time were also analyzed. Results Upper endoscopy was performed in 34 patients, generating 128 findings of 22 disease names. The correct recognition rate was 100%, and the median number of revisions was 0. The median finding registration time was 2.57 [interquartile range (IQR), 2.33-2.92] seconds, and the median endoscopy time was 234 (IQR, 194-227) seconds. Conclusion The SR system demonstrated high recognition accuracy in the clinical setting. The finding registration time was extremely short.
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Affiliation(s)
- Hiroshi Takayama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
| | - Ryo Masumura
- NTT Computer and Data Science Laboratories, NTT Corporation, Japan
| | | | - Ryo Yonezawa
- System Solution Headquarters, Fujifilm Medical IT Solutions Co., Ltd, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
| | - Yoshinori Morita
- Department of Gastroenterology, Kobe University Hospital International Clinical Cancer Research Center, Japan
| | - Takashi Toyonaga
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
| | | | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
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Okamoto N, Tanaka S, Abe H, Miyazaki H, Nakai T, Tsuda K, Sakaguchi H, Yoshizaki T, Ikezawa N, Inoue J, Ooi M, Kodama Y. Predicting Inadequate Bowel Preparation When Using Sodium Picosulfate plus Magnesium Citrate for Colonoscopy: Development and Validation of a Prediction Score. Digestion 2022; 103:462-469. [PMID: 36380621 DOI: 10.1159/000527312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 09/25/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Sodium picosulfate plus magnesium citrate is a bowel preparation agent with high patient acceptability. However, it is unclear which patients are more likely to have inadequate bowel preparation when using this agent. This study aimed to identify the risk factors for inadequate bowel preparation when using sodium picosulfate plus magnesium citrate for colonoscopy and to develop a scoring model to predict which patients will have inadequate bowel preparation. METHODS A total of 350 Japanese patients were enrolled from June 2021 to April 2022. Data on patient background, details of colonoscopy, and satisfaction assessment questionnaire results were prospectively collected. The scoring model for inadequate bowel preparation was developed based on multiple logistic regression analyses, and its performance was internally validated using bootstrapping. RESULTS Adequate bowel preparation was obtained in 295 patients (84.3%); 335 (95.7%) were able to ingest the drug without difficulty. The scoring model consisted of five independent risk factors and points of risk scores were assigned to each one as follows: American Society of Anesthesiologists physical status III (1 point), diabetes comorbidities (5 points), use of laxatives (4 points), no defecation once in a day (2 points), and drug use for mental disorder (6 points). The C-statistics of the scoring system for inadequate bowel preparation was 0.75. DISCUSSION We identified five risk factors for inadequate bowel preparation when using sodium picosulfate plus magnesium citrate regimen and developed a scoring model for inadequate bowel preparation with satisfactory discrimination and calibration.
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Affiliation(s)
- Norihiro Okamoto
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan.,Tanaka Clinic, Kobe, Japan
| | - Hirohumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Haruka Miyazaki
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tastuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Kazunori Tsuda
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tetsuya Yoshizaki
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Jun Inoue
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Makoto Ooi
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
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11
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Ikezawa N, Toyonaga T, Tanaka S, Yoshizaki T, Takao T, Abe H, Sakaguchi H, Tsuda K, Urakami S, Nakai T, Harada T, Miura K, Yamasaki T, Kostalas S, Morita Y, Kodama Y. Feasibility and safety of endoscopic submucosal dissection for lesions in proximity to a colonic diverticulum. Clin Endosc 2022; 55:417-425. [PMID: 35545214 PMCID: PMC9178129 DOI: 10.5946/ce.2021.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/24/2021] [Indexed: 11/14/2022] Open
Abstract
Background/Aims Endoscopic submucosal dissection (ESD) for diverticulum-associated colorectal lesions is generally contraindicated because of the high risk of perforation. Several studies on patients with such lesions treated with ESD have been reported recently. However, the feasibility and safety of ESD for lesions in proximity to a colonic diverticulum (D-ESD) have not been fully clarified. The aim of this study was to evaluate the feasibility and safety of D-ESD. Methods D-ESD was defined as ESD for lesions within approximately 3 mm of a diverticulum. Twenty-six consecutive patients who underwent D-ESD were included. Two strategic approaches were used depending on whether submucosal dissection of the diverticulum-related part was required (strategy B) or not (strategy A). Treatment outcomes and adverse events associated with each strategy were analyzed. Results The en bloc resection rate was 96.2%. The rates of R0 and curative resection in strategies A and B were 80.8%, 73.1%, 84.6%, and 70.6%, respectively. Two cases of intraoperative perforation and one case of delayed perforation occurred. The delayed perforation case required emergency surgery, but the other cases were managed conservatively. Conclusions D-ESD may be a feasible treatment option. However, it should be performed in a high-volume center by expert hands because it requires highly skilled endoscopic techniques.
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Affiliation(s)
- Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takashi Toyonaga
- Department of Endoscopy, Kobe University Hospital, Kobe, Japan.,Department of Gastroenterology, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tetsuya Yoshizaki
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Kazunori Tsuda
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Taku Harada
- Department of Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Kou Miura
- Department of Gastroenterology, Yoka Municipal Hospital, Yabu, Japan
| | - Takahisa Yamasaki
- Department of Gastroenterology, Yoka Municipal Hospital, Yabu, Japan
| | - Stuart Kostalas
- Department of Gastroenterology, Port Macquarie Base Hospital, Port Macquarie, Australia
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
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12
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Takayama H, Toyonaga T, Yoshizaki T, Abe H, Nakai T, Ueda C, Urakami S, Kaku H, Shimamoto Y, Matsumoto K, Tsuda K, Sakaguchi H, Matsuoka K, Baba S, Takihara H, Ikezawa N, Tanaka S, Takao M, Takao T, Morita Y, Kodama Y. Timing of pyloric stenosis and effectiveness of endoscopic balloon dilation after pyloric endoscopic submucosal dissection. J Gastroenterol Hepatol 2021; 36:3158-3163. [PMID: 34129253 DOI: 10.1111/jgh.15582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/19/2021] [Accepted: 06/13/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM There have been studies on risk factors for stenosis after pyloric endoscopic submucosal dissection (ESD). However, the most appropriate strategies for the management of cases with these risk factors have not been established. This study aimed to investigate post-ESD management by evaluating the timing of stenosis and the effectiveness of endoscopic balloon dilation (EBD) after pyloric ESD. METHODS We retrospectively reviewed cases of pyloric ESD. We first reassessed risk factors for stenosis in multivariate analysis and receiver operating characteristic curve and defined patients with the identified risk factors as the risk group. The primary outcome was the timing of stenosis in the risk group assessed by the Kaplan-Meier method. RESULTS We reviewed 159 cases with pyloric ESD and observed pyloric stenosis in 25 cases. Cases with circumferential mucosal defect ≥ 76% were identified as the risk group. The stenosis-free probability in the risk group was 97% (95% confidence interval [CI]: 79-100%), 94% (95% CI: 76-98%), and 85% (95% CI: 66-93%) on days 7, 14, and 21, respectively. It decreased every week thereafter and did not significantly change after day 56. Twenty-three stenosis cases, except for conservative improvement, including six whole circumferential pyloric ESD cases, were improved by EBD without complications. CONCLUSIONS Post-ESD stenosis often developed from the third to the eighth week. In all pyloric ESD cases, including whole circumferential pyloric ESD cases, pyloric stenosis was improved following EBD without complications.
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Affiliation(s)
- Hiroshi Takayama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Toyonaga
- Department of Endoscopy, Kobe University Hospital, Kobe, Japan.,Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Tetsuya Yoshizaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Chise Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hidetoshi Kaku
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yusaku Shimamoto
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kei Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazunori Tsuda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koki Matsuoka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinichi Baba
- Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Hiroshi Takihara
- Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Madoka Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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13
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Ueda C, Abe H, Tanaka S, Kawara F, Toyonaga T, Ariyoshi R, Sako T, Sakaguchi H, Ikezawa N, Urakami S, Nakai T, Kodama Y. Peroral endoscopic myotomy for advanced achalasia with megaesophagus. Esophagus 2021; 18:922-931. [PMID: 33837865 DOI: 10.1007/s10388-021-00833-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/23/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND The outcomes of peroral endoscopic myotomy for advanced achalasia are not well known. This study aimed to evaluate the outcomes of peroral endoscopic myotomy for achalasia with megaesophagus, which is one of the characteristics of advanced achalasia. METHODS In total, 234 patients with achalasia who underwent peroral endoscopic myotomy in our hospital from April 2015 to March 2019 were included in this retrospective observational study. Megaesophagus was defined as a maximum esophageal diameter of 6 cm or more. Outcomes, including clinical success (Eckardt score ≤ 3 without retreatment) at the 1-year follow-up, technical success, and perioperative complications, were investigated and compared between patients with and without megaesophagus. RESULTS Eleven patients (4.7%) were diagnosed with megaesophagus. The clinical success rate achieved was 63.6% in patients with megaesophagus, with a significant decrease in the Eckardt score (6 vs. 2, p = 0.003) and integrated relaxation pressure (28 mmHg vs. 9 mmHg, p = 0.028). The technical success rate was 100%. However, patients with megaesophagus had a significantly lower clinical success rate than those without megaesophagus (63.6% vs. 96.0%, p = 0.002). Furthermore, patients with megaesophagus had significantly higher rates of major adverse events than those without megaesophagus (18.2% vs. 2.7%, p = 0.048). CONCLUSIONS Peroral endoscopic myotomy improved achalasia-related symptoms, and this was technically feasible in patients with megaesophagus. However, the clinical success rate was somewhat low, and the rate of major adverse events was high. Therefore, peroral endoscopic myotomy should be carefully performed for advanced achalasia with megaesophagus.
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Affiliation(s)
- Chise Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Fumiaki Kawara
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takashi Toyonaga
- Division of Endoscopic Medicine, Kobe University Hospital, Kobe, Japan
| | - Ryusuke Ariyoshi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Tomoya Sako
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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14
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Matsumoto K, Tanaka S, Toyonaga T, Ikezawa N, Nishio M, Uraoka M, Yoshihara T, Sakaguchi H, Abe H, Yoshizaki T, Takao M, Takao T, Morita Y, Yokozaki H, Kodama Y. Clinical Impact of Different Reconstruction Methods on Remnant Gastric Cancer at the Anastomotic Site after Distal Gastrectomy. Clin Endosc 2021; 55:86-94. [PMID: 34384165 PMCID: PMC8831400 DOI: 10.5946/ce.2021.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/18/2021] [Indexed: 11/14/2022] Open
Abstract
Background/Aims The anastomotic site after distal gastrectomy is the area most affected by duodenogastric reflux. Different reconstruction methods may affect the lesion characteristics and treatment outcomes of remnant gastric cancers at the anastomotic site. We retrospectively investigated the clinicopathologic and endoscopic submucosal dissection outcomes of remnant gastric cancers at the anastomotic site. Methods We recruited 34 consecutive patients who underwent endoscopic submucosal dissection for remnant gastric cancer at the anastomotic site after distal gastrectomy. Clinicopathology and treatment outcomes were compared between the Billroth II and non-Billroth II groups. Results The tumor size in the Billroth II group was significantly larger than that in the non-Billroth II group (22 vs. 19 mm; p=0.048). More severe gastritis was detected endoscopically in the Billroth II group (2 vs. 1.33; p=0.0075). Moreover, operation time was longer (238 vs. 121 min; p=0.004) and the frequency of bleeding episodes was higher (7.5 vs. 3.1; p=0.014) in the Billroth II group. Conclusions Compared to remnant gastric cancers in non-Billroth II patients, those in the Billroth II group had larger lesions with a background of severe remnant gastritis. Endoscopic submucosal dissection for remnant gastric cancers in Billroth II patients involved longer operative times and more frequent bleeding episodes than that in patients without Billroth II.
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Affiliation(s)
- Kei Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takashi Toyonaga
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Mari Nishio
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masanao Uraoka
- Department of Gastroenterology, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Tomoatsu Yoshihara
- Department of Gastroenterology, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tetsuya Yoshizaki
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Madoka Takao
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Hiroshi Yokozaki
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
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15
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Takao M, Takegawa Y, Takao T, Sakaguchi H, Nakano Y, Tanaka S, Morita Y, Toyonaga T, Umegaki E, Kutsumi H, Kodama Y. Fibrin glue: Novel submucosal injection agent for endoscopic submucosal dissection. Endosc Int Open 2021; 9:E319-E323. [PMID: 33655028 PMCID: PMC7892272 DOI: 10.1055/a-1315-0059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 10/05/2020] [Indexed: 12/22/2022] Open
Abstract
Background and study aims Adequate mucosal elevation by submucosal injection is crucial for patient safety and efficiency during endoscopic submucosal dissection (ESD). This study aimed to evaluate the efficacy of fibrin glue (FG) as a long-lasting submucosal injection agent and to evaluate the technical feasibility of FG injection for ESD. Materials and methods To compare the capabilities of different agents in maintaining submucosal evaluation, we injected FG, hyaluronic acid solution, and normal saline into the porcine gastric specimen that was incised into approximately 5 × 5 cm squares. Then, we measured the height of submucosal elevations over time. Moreover, three hypothetical lesions from the resected porcine stomach underwent ESD with FG injection. Thereafter, we conducted macroscopic and histopathologic analyses. Results FG maintained the greatest submucosal elevation among all the injection agents. Three ESD procedures were performed with en bloc resection. Both macroscopic and histopathologic findings showed a thick FG clot on the ulcers. Conclusions The FG solution can be potentially used as an ESD submucosal injection agent in an in vitro model.
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Affiliation(s)
- Madoka Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yoshitaka Takegawa
- Research & Development Division, Medical Affairs Section, KM Biologics Co., Ltd., Kumamoto, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yoshiko Nakano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takashi Toyonaga
- Department of Endoscopy, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Eiji Umegaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hiromu Kutsumi
- Center for Clinical Research and Advanced Medicine, Shiga University of Medical Science, Shiga, Otsu, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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16
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Abe H, Tanaka S, Kawara F, Toyonaga T, Ariyoshi R, Sakaguchi H, Sako T, Ikezawa N, Kodama Y. Comparison of the safety and efficacy of peroral endoscopic myotomy between octogenarians and non-octogenarians. Dig Endosc 2021; 33:110-117. [PMID: 32274834 DOI: 10.1111/den.13686] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/01/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVES This study compared the safety and efficacy of peroral endoscopic myotomy for esophageal motility disorders between octogenarians and non-octogenarians. METHODS This retrospective observational study recruited 321 patients (28 octogenarians and 293 non-octogenarians) who underwent peroral endoscopic myotomy from two institutions. Clinical success (postoperative Eckardt score ≤ 3), technical success (completion of gastric and esophageal myotomy), and perioperative adverse events were compared between octogenarians and non-octogenarians. Perioperative adverse events were classified into major and minor adverse events based on the International Peroral Endoscopic Myotomy Survey criteria and were subdivided into technical and non-technical adverse events according to the presence of a direct causal relationship with the procedure. RESULTS There were no significant differences in the rates of clinical success 1 year after treatment (100% vs. 97.3%, P = 0.64) and technical success (100% vs. 99.7%, P = 0.91) between octogenarians and non-octogenarians. Octogenarians had a higher incidence of perioperative adverse events (28.6% vs. 10.2%, P = 0.00097), particularly major adverse events (25.0% vs. 3.0%, P < 0.0001). There were no significant differences in the incidence of minor adverse events (7.1% vs. 7.9%, P = 0.67). Although there was no difference in the incidence of technical adverse events (10.7% vs. 9.2%, P = 0.74), octogenarians had a significantly higher incidence of non-technical adverse events (17.9% vs. 1.0%, P = 0.0002). CONCLUSIONS There were no significant differences in short-term clinical success and technical success between octogenarians and non-octogenarians. However, octogenarians showed a significantly higher incidence of perioperative adverse events, particularly in major adverse events and non-technical adverse events. Peroral endoscopic myotomy for octogenarians should be carefully applied.
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Affiliation(s)
- Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Fumiaki Kawara
- Division of Gastroenterology, Konan Medical Center, Hyogo, Japan
| | - Takashi Toyonaga
- Department of Endoscopic Medicine, Kobe University Hospital, Hyogo, Japan
| | - Ryusuke Ariyoshi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Tomoya Sako
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
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17
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Thian MY, Tanaka S, Abe H, Sakaguchi H, Ikezawa N, Toyonaga T, Kodoma Y. Peroral endoscopic myotomy with simultaneous submucosal and muscle dissection in spastic esophageal disorder. Endoscopy 2021; 53:E9-E10. [PMID: 32428954 DOI: 10.1055/a-1167-1043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Mann Yie Thian
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan.,Department of Gastroenterology and Hepatology, Tan Tock Seng Hospital, Singapore
| | - Shinwa Tanaka
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirofumi Abe
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Nobuaki Ikezawa
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Toyonaga
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan.,Department of Endoscopy, Kobe University Hospital, Kobe, Japan
| | - Yuzo Kodoma
- Department of Internal Medicine, Division of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
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18
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Sako T, Tanaka S, Toyonaga T, Abe H, Sakaguchi H, Ikezawa N, Kodama Y. A novel closure technique using the EndoTrac for mucosal incision closure in peroral endoscopic myotomy. Endoscopy 2020; 52:E291-E292. [PMID: 32066194 DOI: 10.1055/a-1109-2301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Tomoya Sako
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Toyonaga
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Sakaguchi H, Takao T, Takegawa Y, Koga Y, Yamanaka K, Sagata M, Tanaka S, Morita Y, Toyonaga T, Kodama Y. Efficacy of the Envelope Method in Applying Polyglycolic Acid Sheets to Post-Endoscopic Submucosal Dissection Ulcers in Living Pigs. Clin Endosc 2020; 54:64-72. [PMID: 32668527 PMCID: PMC7939780 DOI: 10.5946/ce.2020.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/07/2020] [Indexed: 12/19/2022] Open
Abstract
Background/Aims Application of polyglycolic acid (PGA) sheets using fibrin glue in post-endoscopic submucosal dissection (ESD) ulcers to prevent bleeding has been reported to be difficult with the conventional delivery method because of gravity. This study assessed the usefulness of the envelope-based delivery system with and against gravity in living pigs.
Methods PGA sheets were applied on post-ESD ulcers with and against gravity six times each using the conventional and envelope methods, respectively. The PGA sheet delivery time and the endoscopic and histological findings of the treated ulcer floors were compared.
Results With gravity, the median PGA sheet application time was 1.00 (0.68–1.30) min/cm2 and 0.32 (0.18–0.52) min/cm2 with the conventional and envelope techniques (p=0.002), respectively, and against gravity, it was 1.20 (1.13–1.63) min/cm2 and 0.50 (0.39–0.58) min/cm2 (p=0.002), respectively. Against gravity, the endoscopic and histological findings revealed that the conventional group had insufficient fixation of the PGA sheets, but the envelope groups had sufficient fixation. The results with gravity were similar between the groups.
Conclusions The envelope method makes it possible to deliver PGA sheets to the stomach quickly and cover ulcers appropriately both with and against gravity in living pigs.
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Affiliation(s)
- Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Yuki Koga
- KM Biologics Co., Ltd., Kumamoto, Japan
| | | | | | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Toyonaga
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Yanagihara A, Kagamu H, Sakaguchi H, Ishida H, Nitanda H, Taguchi R, Yoshimura R, Yamaguchi O, Hashimoto K, Kodaira K. Immunological impact of surgery in NSCLC patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz258.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Yuki T, Ogasawara A, Yokozeki K, Takahashi Y, Sakaguchi H. 073 Epicutaneous sensitization with protein allergens differentiates naïve T cells into not only Th2 but also Th17 cells, which may involve in the delayed reactions in protein contact dermatitis. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Tanaka S, Abe H, Ariyoshi R, Sakaguchi H, Oshikiri T, Nakamura T, Nakano Y, Morita Y, Toyonaga T, Umegaki E, Yokozaki H, Kakeji Y, Kodama Y. The number and size of Lugol-voiding areas were reduced by pneumatic dilation in a patient with achalasia and esophageal cancer. JGH Open 2019; 4:309-311. [PMID: 32280789 PMCID: PMC7144781 DOI: 10.1002/jgh3.12244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/07/2019] [Accepted: 03/29/2019] [Indexed: 11/10/2022]
Abstract
Achalasia is a rare benign esophageal motility disease caused by the impaired relaxation of the lower esophageal sphincter, which results from nerve damage. Patients with achalasia are known to have a high risk of esophageal cancer. Here, we present the case of a patient with achalasia and esophageal cancer in whom the Lugol-voiding areas (LVAs) could be improved by pneumatic dilation and the extending area of esophagus cancer could become clear. In achalasia patients, LVAs are modified by inflammation and appear wider than their actual size. Moreover, some parts of LVAs in achalasia patients might be reversible by treatments that improve delayed emptying. When the spread of esophagus cancer is unclear due to the detection of numerous LVAs by Lugol chromoendoscopy, the treatments that improve delayed emptying first may be effective in accurately diagnosing the extending area of esophagus cancer.
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Affiliation(s)
- Shinwa Tanaka
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Hirofumi Abe
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Ryusuke Ariyoshi
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Hiroya Sakaguchi
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Taro Oshikiri
- Divisions of Gastrointestinal Surgery, Department of Surgery Kobe University Graduate School of Medicine Kobe Japan
| | - Tetsu Nakamura
- Divisions of Gastrointestinal Surgery, Department of Surgery Kobe University Graduate School of Medicine Kobe Japan
| | - Yoshiko Nakano
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Yoshinori Morita
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Takashi Toyonaga
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Eiji Umegaki
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
| | - Hiroshi Yokozaki
- Divisions of Pathology, Department of Pathology Kobe University Graduate School of Medicine Kobe Japan
| | - Yoshihiro Kakeji
- Divisions of Gastrointestinal Surgery, Department of Surgery Kobe University Graduate School of Medicine Kobe Japan
| | - Yuzo Kodama
- Divisions of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan
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23
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Abe H, Tanaka S, Kawara F, Toyonaga T, Ariyoshi R, Nakano Y, Sakaguchi H, Morita Y, Umegaki E, Kodama Y. Effective treatment improves the body composition of patients with esophageal motility disorders. Dis Esophagus 2019; 32:5450337. [PMID: 30980080 DOI: 10.1093/dote/doz022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Although treatment for esophageal motility disorder improves dysphagia and increases body weight, the effect of the treatment on body composition is unclear. This study aimed to assess the change in body composition between before and after treatment, the preoperative predictors of muscle increase, and the association between muscle increase and quality of life. Sixty-one patients (achalasia, n = 55; spastic esophageal disorder n = 6) who underwent per-oral endoscopic myotomy were analyzed in a single-arm prospective observational study. Appendicular skeletal muscle mass was measured with dual X-ray absorptiometry before and 3 months after per-oral endoscopic myotomy. For subgroup analysis, patients with postoperative appendicular skeletal muscle mass increase were defined as the muscle-increase group and the rest as the non-muscle-increase group. Preoperative factors related to the muscle-increase group were clarified via multivariate analysis. Further, the improvement after per-oral endoscopic myotomy in health-related quality-of-life score (Short Form-36) was compared between the muscle-increase and non-muscle-increase groups. Appendicular skeletal muscle mass increased significantly 3 months after per-oral endoscopic myotomy (P = 0.0002). The patients who underwent effective treatment (postoperative Eckardt score < 3) showed a significant improvement in appendicular skeletal muscle mass compared to those who did not (P = 0.04). In the stepwise logistic regression analysis, the preoperative Eckardt score (odds ratio: 1.95, 95% confidence interval 1.30-3.26, P = 0.0005) and preoperative serum prealbumin (odds ratio: 0.83, 95% confidence interval 0.70-0.97, P = 0.02) were identified as independent factors related to postoperative muscle increase. The improvements in the Short Form-36 domains of General Health (P = 0.0007) and Vitality (P = 0.003) were significantly higher in the muscle-increase group. The findings show that effective treatment improved the body composition of patients with esophageal motility disorder and that the Eckardt score and serum prealbumin may aid the prediction of increased appendicular skeletal muscle mass after treatment, resulting in a better quality of life.
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Affiliation(s)
- Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Fumiaki Kawara
- Department of Endoscopic Medicine, Kobe University Hospital, Kobe, Japan
| | | | - Ryusuke Ariyoshi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshiko Nakano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Eiji Umegaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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24
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Fukushima N, Sakaguchi H, Toda K, Kogaki S, Narita J, Ishida H, Hashii Y, Miyamura T, Imadome K. Simultaneous Assessment of Plasma and Peripheral Mononuclear Cells for Multiple Viral Load Quantification in Peripheral Blood of Patients after Heart Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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25
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Sakaguchi H, Toyonaga T, Kaku H, Nakano Y, Tanaka S, Takao T, Kodama Y. The crane technique: a novel traction method for use during rectal endoscopic submucosal dissection. Endoscopy 2019; 51:E88-E89. [PMID: 30731487 DOI: 10.1055/a-0825-6235] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Toyonaga
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hidetoshi Kaku
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshiko Nakano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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26
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Tanaka S, Toyonaga T, Kaku H, Sakaguchi H, Baba S, Takao T, Kodama Y. A novel traction device (EndoTrac) for use during endoscopic submucosal dissection. Endoscopy 2019; 51:E90-E91. [PMID: 30731488 DOI: 10.1055/a-0830-4556] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Hidetoshi Kaku
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinichi Baba
- Department of Gastroenterology, Kishiwada Tokushukai Hospital, Osaka, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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27
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Nishida K, Sakaguchi H, Kamei M, Cecilia-Gonzalez C, Terasawa Y, Velez-Montoya R, Fujikado T, Sanchez-Fontan R, Ozawa M, Quiroz-Mercado H, Nishida K. Comparison between the threshold of new and conventional electrodes of Artificial Vision by Direct Optic Nerve Electrical stimulation (AV-DONE). Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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28
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Terashima S, Yu L, Ong HJ, Tanihata I, Adachi S, Aoi N, Chan PY, Fujioka H, Fukuda M, Geissel H, Gey G, Golak J, Haettner E, Iwamoto C, Kawabata T, Kamada H, Le XY, Sakaguchi H, Sakaue A, Scheidenberger C, Skibiński R, Sun BH, Tamii A, Tang TL, Tran DT, Topolnicki K, Wang TF, Watanabe YN, Weick H, Witała H, Zhang GX, Zhu LH. Dominance of Tensor Correlations in High-Momentum Nucleon Pairs Studied by (p,pd) Reaction. Phys Rev Lett 2018; 121:242501. [PMID: 30608744 DOI: 10.1103/physrevlett.121.242501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Indexed: 06/09/2023]
Abstract
The isospin character of p-n pairs at large relative momentum has been observed for the first time in the ^{16}O ground state. A strong population of the J,T=1,0 state and a very weak population of the J,T=0,1 state were observed in the neutron pickup domain of ^{16}O(p,pd) at 392 MeV. This strong isospin dependence at large momentum transfer is not reproduced by the distorted-wave impulse approximation calculations with known spectroscopic amplitudes. The results indicate the presence of high-momentum protons and neutrons induced by the tensor interactions in the ground state of ^{16}O.
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Affiliation(s)
- S Terashima
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - L Yu
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
| | - H J Ong
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - I Tanihata
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - S Adachi
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - N Aoi
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - P Y Chan
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - H Fujioka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Fukuda
- Department of Physics, Osaka University, 1-5 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
- Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
| | - G Gey
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - J Golak
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - E Haettner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
- Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
| | - C Iwamoto
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - T Kawabata
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Kamada
- Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
| | - X Y Le
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - H Sakaguchi
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - A Sakaue
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
- Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
| | - R Skibiński
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - B H Sun
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
- Beijing Advanced Innovation Center for Big Data based Precision Medicine, Beihang University, 100083 Beijing, China
| | - A Tamii
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - T L Tang
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - D T Tran
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - K Topolnicki
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - T F Wang
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - Y N Watanabe
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - H Weick
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
| | - H Witała
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - G X Zhang
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - L H Zhu
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
- Beijing Advanced Innovation Center for Big Data based Precision Medicine, Beihang University, 100083 Beijing, China
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Abo T, Yuki T, Xu R, Araki D, Takahashi Y, Sakaguchi H, Itagaki H. Addressing the exceptions of the limitation for highly volatile substances in the Short Time Exposure (STE) test method and the predictive performance for assessing eye irritation potential. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Nakano Y, Takao T, Morita Y, Sakaguchi H, Tanaka S, Ishida T, Toyonaga T, Umegaki E, Kodama Y. Endoscopic plombage with polyglycolic acid sheets and fibrin glue for gastrointestinal fistulas. Surg Endosc 2018; 33:1795-1801. [PMID: 30251142 DOI: 10.1007/s00464-018-6454-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/18/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND STUDY AIMS Gastrointestinal (GI) fistulas arise as adverse events of GI surgery and endoscopic treatment as well as secondary to underlying diseases, such as ulceration and pancreatitis. Until a decade ago, they were mainly treated surgically or conservatively. Bioabsorbable polyglycolic acid (PGA) sheets and fibrin glue, which are commonly used in surgical procedures, have also recently been used in endoscopic procedures for the closure of GI defects. However, there have only been few case reports about successful experiences with this approach. There have not been any case-series studies investigating the strengths and weaknesses of such PGA sheet-based treatment. In this study, we evaluated the clinical effectiveness of using PGA sheets to close GI fistulas. PATIENTS AND METHODS Cases in which patients underwent endoscopic filling with PGA sheets and fibrin glue for GI fistulas at Kobe University Hospital between January 2013 and April 2018 were retrospectively reviewed. RESULTS A total of 10 cases were enrolled. They included fistulas due to leakage after GI surgery, aortoesophageal/bronchoesophageal fistulas caused by chemoradiotherapy, or severe acute pancreatitis. The fistulas were successfully closed in 7 cases (70%). The unsuccessful cases involved a fistula due to leakage after surgical esophagectomy and bronchoesophageal fistulas due to chemoradiotherapy or severe acute pancreatitis. Unsuccessful treatment was related to fistula epithelization. CONCLUSION Endoscopic plombage with PGA sheets and fibrin glue could be a promising therapeutic option for GI fistulas.
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Affiliation(s)
- Yoshiko Nakano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan.
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Tsukasa Ishida
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | | | - Eiji Umegaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
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31
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Seehawong U, Morita Y, Nakano Y, Iwasaki T, Krutsri C, Sakaguchi H, Sako T, Takao T, Tanaka S, Toyonaga T, Umegaki E, Kodama Y. Successful treatment of an esophageal perforation that occurred during endoscopic submucosal dissection for esophageal cancer using polyglycolic acid sheets and fibrin glue. Clin J Gastroenterol 2018; 12:29-33. [PMID: 30171487 DOI: 10.1007/s12328-018-0900-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 08/23/2018] [Indexed: 02/08/2023]
Abstract
A 74-year-old female, who was diagnosed with superficial esophageal cancer, underwent endoscopic submucosal dissection (ESD) at another hospital, but a perforation occurred during the procedure. The perforation was closed with endoscopic clips, and the ESD was halted. The patient was referred to our hospital, and ESD was retried. There was severe fibrosis around the lesion, and injections into the submucosal layer were difficult. In addition, it was not possible to identify the submucosal layer, and making an oral-side incision caused a large perforation along the incision line. As continuing the submucosal dissection with an endoknife was considered difficult, the lesion was finally resected with hybrid ESD using a snare. The perforation was closed using polyglycolic acid (PGA) sheets and fibrin glue. Endoscopy performed 6 days later showed that the defect had been closed, and no contrast leakage was detected. Follow-up endoscopy conducted 3 months after the ESD showed ulcer healing at the dissection site and scar formation, but no residual tumor or esophageal stricture was noted. Our experience suggests that the use of PGA sheets with fibrin glue is a feasible, safe, and effective way of treating large esophageal perforations during ESD.
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Affiliation(s)
- Umaporn Seehawong
- Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan.
| | - Yoshiko Nakano
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Takehiro Iwasaki
- Department of Gastroenterology, Japanese Red Cross Kochi Hospital, Kochi, Japan
| | - Chonlada Krutsri
- Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Tomoya Sako
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Toshitatsu Takao
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | | | - Eiji Umegaki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan
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Miyoshi T, Sakaguchi H, Shiraishi I, Yoshimatsu J, Ikeda T. Potential utility of pulsed-wave Doppler for prenatal diagnosis of fetal ventricular tachycardia secondary to long QT syndrome. Ultrasound Obstet Gynecol 2018; 51:697-699. [PMID: 28741754 DOI: 10.1002/uog.18819] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/09/2017] [Accepted: 07/14/2017] [Indexed: 06/07/2023]
Affiliation(s)
- T Miyoshi
- Department of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - H Sakaguchi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - I Shiraishi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - J Yoshimatsu
- Department of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - T Ikeda
- Department of Obstetrics and Gynecology, Mie University, Tsu, Japan
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Tran DT, Ong HJ, Hagen G, Morris TD, Aoi N, Suzuki T, Kanada-En'yo Y, Geng LS, Terashima S, Tanihata I, Nguyen TT, Ayyad Y, Chan PY, Fukuda M, Geissel H, Harakeh MN, Hashimoto T, Hoang TH, Ideguchi E, Inoue A, Jansen GR, Kanungo R, Kawabata T, Khiem LH, Lin WP, Matsuta K, Mihara M, Momota S, Nagae D, Nguyen ND, Nishimura D, Otsuka T, Ozawa A, Ren PP, Sakaguchi H, Scheidenberger C, Tanaka J, Takechi M, Wada R, Yamamoto T. Evidence for prevalent Z = 6 magic number in neutron-rich carbon isotopes. Nat Commun 2018; 9:1594. [PMID: 29686394 PMCID: PMC5913314 DOI: 10.1038/s41467-018-04024-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 03/28/2018] [Indexed: 11/08/2022] Open
Abstract
The nuclear shell structure, which originates in the nearly independent motion of nucleons in an average potential, provides an important guide for our understanding of nuclear structure and the underlying nuclear forces. Its most remarkable fingerprint is the existence of the so-called magic numbers of protons and neutrons associated with extra stability. Although the introduction of a phenomenological spin-orbit (SO) coupling force in 1949 helped in explaining the magic numbers, its origins are still open questions. Here, we present experimental evidence for the smallest SO-originated magic number (subshell closure) at the proton number six in 13-20C obtained from systematic analysis of point-proton distribution radii, electromagnetic transition rates and atomic masses of light nuclei. Performing ab initio calculations on 14,15C, we show that the observed proton distribution radii and subshell closure can be explained by the state-of-the-art nuclear theory with chiral nucleon-nucleon and three-nucleon forces, which are rooted in the quantum chromodynamics.
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Affiliation(s)
- D T Tran
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, 10000, Vietnam
| | - H J Ong
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan.
| | - G Hagen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA
| | - T D Morris
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA
| | - N Aoi
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - T Suzuki
- Department of Physics, College of Humanities and Sciences, Nihon University, Tokyo, 156-8550, Japan
- National Astronomical Observatory of Japan, Tokyo, 181-8588, Japan
| | - Y Kanada-En'yo
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - L S Geng
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
| | - S Terashima
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
| | - I Tanihata
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
| | - T T Nguyen
- Pham Ngoc Thach University of Medicine, Ho Chi Minh, 700000, Vietnam
- Faculty of Physics and Engineering, VNUHCM-University of Science, Ho Chi Minh City, 70250, Vietnam
- Sungkyunkwan University, Gyeonggi-do, 16419, South Korea
| | - Y Ayyad
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - P Y Chan
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - M Fukuda
- Department of Physics, Osaka University, Osaka, 560-0043, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
- Justus Liebig University, 35392, Giessen, Germany
| | - M N Harakeh
- GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
- KVI Center for Advanced Radiation Technology, University of Groningen, 9747 AA, Groningen, The Netherlands
| | - T Hashimoto
- Rare Isotope Science Project, Institute for Basic Science, Daejeon, 34047, Korea
| | - T H Hoang
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, 10000, Vietnam
| | - E Ideguchi
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - A Inoue
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - G R Jansen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- National Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - R Kanungo
- Astronomy and Physics Department, Saint Mary's University, Halifax, NS, B3H 3C3, Canada
| | - T Kawabata
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - L H Khiem
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, 10000, Vietnam
| | - W P Lin
- Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - K Matsuta
- Department of Physics, Osaka University, Osaka, 560-0043, Japan
| | - M Mihara
- Department of Physics, Osaka University, Osaka, 560-0043, Japan
| | - S Momota
- Kochi University of Technology, Kochi, 782-8502, Japan
| | - D Nagae
- RIKEN Nishina Center, Saitama, 351-0198, Japan
| | - N D Nguyen
- Dong Nai University, Dong Nai, 81000, Vietnam
| | - D Nishimura
- Tokyo University of Science, Chiba, 278-8510, Japan
| | - T Otsuka
- Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan
| | - A Ozawa
- Institute of Physics, University of Tsukuba, Ibaraki, 305-8571, Japan
| | - P P Ren
- Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - H Sakaguchi
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
- Justus Liebig University, 35392, Giessen, Germany
| | - J Tanaka
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - M Takechi
- Department of Physics, Niigata University, Niigata, 950-2181, Japan
| | - R Wada
- Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
- Cyclotron Institute, Texas A&M University, College Station, TX, 77840, USA
| | - T Yamamoto
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
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Nokami T, Yamashita T, Komura T, Handa N, Shimizu M, Yamaguchi K, Domi Y, Usui H, Sakaguchi H, Itoh T. Effects of the ether oxygen atom in alkyl side chains on the physical properties of piperidinium ionic liquids. Faraday Discuss 2018; 206:523-534. [DOI: 10.1039/c7fd00142h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various types of piperidinium ionic liquids equipped with an oxygen atom-containing alkyl side chain on the positively charged nitrogen atom were systematically synthesized and their physical properties investigated.
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Ohara Y, Takimoto K, Toyonaga T, Yamaguchi T, Sakaguchi H, Kawara F, Tanaka S, Ishida T, Morita Y, Umegaki E. Enormous postoperative perforation after endoscopic submucosal dissection for duodenal cancer successfully treated with filling and shielding by polyglycolic acid sheets with fibrin glue and computed tomography-guided abscess puncture. Clin J Gastroenterol 2017; 10:524-529. [PMID: 29094323 DOI: 10.1007/s12328-017-0791-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 10/18/2017] [Indexed: 01/15/2023]
Abstract
A female in her 70s underwent esophagogastroduodenoscopy (EGD) for screening, and a 0-IIa lesion measuring approximately 15 mm was detected in the descending portion of the duodenum. Due to the malignant potency of the lesion, endoscopic submucosal dissection (ESD) was performed. Microperforation occurred during ESD. The lesion was removed en bloc and the post-ESD ulcer bed was closed with clips. The next day, the patient had abdominal pain and computed tomography (CT) revealed a small amount of free air in the retroperitoneal space. Since there were no findings to suggest panperitonitis, conservative medical management including fasting and antibiotics was continued. Abdominal pain subsequently improved. However, EGD on the 8th day after ESD for follow-up showed shedding of the post-ESD ulcer that penetrated the retroperitoneal space. A surgical approach was not indicated because a few days may have already passed since postoperative perforation occurred and the spread of inflammation to the retroperitoneum was suspected. In an attempt to promote closure of the perforated cavity, we patched polyglycolic acid sheets and fibrin glue to the cavity wall on days 17, 18, and 20 after ESD. The formation of granulation tissue was detected in the cavity one week later. CT showed an abscess in the right retroperitoneum, for which CT-guided abscess puncture was performed. Thereafter, the cavity gradually decreased. After the initiation of oral intake on postoperative day (POD) 63, the general condition of the patient was stable and she was discharged on POD 87. Polyglycolic acid sheets with fibrin glue and CT-guided abscess puncture were useful for closing the large cavity that developed after duodenal postoperative perforation.
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Affiliation(s)
- Yoshiko Ohara
- Department of Endoscopy, Kobe University Hospital, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Japan
| | - Kengo Takimoto
- Department of Gastroenterology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Takashi Toyonaga
- Department of Endoscopy, Kobe University Hospital, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Japan. .,Department of Endoscopy, Kishiwada Tokushukai Hospital, Kishiwada, Japan.
| | - Tomohiro Yamaguchi
- Department of Gastroenterology, Saitama Red Cross Hospital, Saitama, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Fumiaki Kawara
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tsukasa Ishida
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yoshinori Morita
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Eiji Umegaki
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
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Sakaguchi H, Miyazaki A, Matsumura Y, Shima Y, Baba S, Shiraishi I. P496Mid-term results of left ventricular apical pacing in pediatric patients with complete atrio-ventricular block. Europace 2017. [DOI: 10.1093/ehjci/eux141.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Matsumura Y, Sakaguchi H, Miyazaki A, Baba S, Hayama Y, Negishi J, Ohuchi H, Shiraishi I. P1462The importance of rhythm management among the CHD patients with atrial tachycardia. Europace 2017. [DOI: 10.1093/ehjci/eux158.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Katada Y, Nakagawa S, Minakata K, Odaka M, Taue H, Sato Y, Yonezawa A, Kayano Y, Yano I, Nakatsu T, Sakamoto K, Uehara K, Sakaguchi H, Yamazaki K, Minatoya K, Sakata R, Matsubara K. Efficacy of protocol-based pharmacotherapy management on anticoagulation with warfarin for patients with cardiovascular surgery. J Clin Pharm Ther 2017; 42:591-597. [PMID: 28503837 DOI: 10.1111/jcpt.12560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/20/2017] [Indexed: 01/21/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Anticoagulation therapy with warfarin requires periodic monitoring of prothrombin time-international normalized ratio (PT-INR) and adequate dose adjustments based on the data to minimize the risk of bleeding and thromboembolic events. In our hospital, we have developed protocol-based pharmaceutical care, which we called protocol-based pharmacotherapy management (PBPM), for warfarin therapy. The protocol requires pharmacists to manage timing of blood sampling for measuring PT-INR and warfarin dosage determination based on an algorithm. This study evaluated the efficacy of PBPM in warfarin therapy by comparing to conventional pharmaceutical care. METHODS From October 2013 to June 2015, a total of 134 hospitalized patients who underwent cardiovascular surgeries received post-operative warfarin therapy. The early series of patients received warfarin therapy as the conventional care (control group, n=77), whereas the latter received warfarin therapy based on the PBPM (PBPM group, n=68). These patients formed the cohort of the present study and were retrospectively analysed. RESULTS The indications for warfarin included aortic valve replacement (n=56), mitral valve replacement (n=4), mitral valve plasty (n=22) and atrial fibrillation (n=29). There were no differences in patients' characteristics between both groups. The percentage time in therapeutic range in the first 10 days was significantly higher in the PBPM group (47.1%) than that in the control group (34.4%, P<.005). The average time to reach the steady state was significantly (P<.005) shorter in the PBPM group compared to the control group (7.3 vs 8.6 days). WHAT IS NEW AND CONCLUSION Warfarin therapy based on our novel PBPM was clinically safe and resulted in significantly better anticoagulation control compared to conventional care.
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Affiliation(s)
- Y Katada
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - S Nakagawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - K Minakata
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Odaka
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - H Taue
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Y Sato
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - A Yonezawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Y Kayano
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - I Yano
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - T Nakatsu
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Sakamoto
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Uehara
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Sakaguchi
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Yamazaki
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Minatoya
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - R Sakata
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Matsubara
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
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Kobayashi J, Tahara T, Matsuzaki Y, Ono Y, Matsumoto J, Sato H, Onko K, Kishimoto Y, Tanino T, Sakaguchi H, Uchida N. PO-0999: Control of rectal volume with Kampo formula during prostate radiotherapy: A prospective study. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31435-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yoshida N, Sakaguchi H, Muramatsu H, Okuno Y, Song C, Dovat S, Shimada A, Ozeki M, Ohnishi H, Teramoto T, Fukao T, Kondo N, Takahashi Y, Matsumoto K, Kato K, Kojima S. Germline IKAROS mutation associated with primary immunodeficiency that progressed to T-cell acute lymphoblastic leukemia. Leukemia 2017; 31:1221-1223. [PMID: 28096536 DOI: 10.1038/leu.2017.25] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- N Yoshida
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - H Sakaguchi
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Okuno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - C Song
- Division of Hematology/Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - S Dovat
- Division of Hematology/Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - A Shimada
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Ozeki
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - H Ohnishi
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - T Teramoto
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - T Fukao
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - N Kondo
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Y Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Matsumoto
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - K Kato
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - S Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Takatoshi T, Uchida N, Tanino T, Sakaguchi H, Fujii S, Mukuta N, Fukunaga T, Ogawa T. Apparent Diffusion Coefficients (ADCs) in Diffusion-Weighted 3.0 Tesla MR Imaging Is Useful in Predicting Therapeutic Response to Concurrent Chemoradiation Therapy in Patients With Uterine Cervical Cancer: A Prospective Study. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Miyazawa M, Saito K, Abo T, Nukada Y, Ei K, Sala À, Sakaguchi H. Predictive performance of the short time exposure (STE) test for identifying eye irritation potential of chemical mixtures. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Aoki M, Kamiyama M, Nagata T, Sakaguchi H, Ichii R. One Component Polyurethane Elastomers Based on Novel Polyaldimine. J CELL PLAST 2016. [DOI: 10.1177/0021955x9302900551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- M. Aoki
- Mitsui Toatsu Chemicals, Inc
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Otsuki T, Sakaguchi H, Hatayama T, Takata A, Hyodoh F, Tsujita S, Ueki A, Morimoto K. Secretory Ig a in Saliva and Academic Stress. Int J Immunopathol Pharmacol 2016; 17:45-8. [PMID: 15345191 DOI: 10.1177/03946320040170s208] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Several reports have proposed that the concentration of secretory immunoglobulin A (S-IgA) in saliva is an indicator of psychological stress. With this in mind, we decided to examine it in 10 second year medical student volunteers at Kawasaki Medical School course between May 4 and July 13, 2000 and discussed the relationship between S-IgA and the stress from academic examinations. Saliva was collected three times (on rising, at forenoon, and at bedtime) every Thursday. During this period, sporadic academic examinations were held twice and term-end examinations occurred during the last two weeks. Results showed the concentration of S-IgA significantly higher at the on rising time-point than at the other two time-points. There was also a tendency for the S-IgA level in saliva to be higher on the day before academic examinations and during them and lower on the days between these examinations. In addition, daily variations in the S-IgA concentration sometimes seemed to be disturbed by other academic stress. Therefore, it may be possible to use this measurement to monitor psychological stress in students and workers.
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Affiliation(s)
- T Otsuki
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama, Japan.
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Tran D, Nguyen T, Tanihata I, Ong H, Fukuda M, Aoi N, Ayyad Y, Sakaguchi H, Tanaka J, Chan P, Hoang T, Hashimoto T, Ideguchi E, Inoue A, Kawabata T, Khiem L, Matsuta K, Mihara M, Momota S, Nagae D, Ozawa A, Ren P, Terashima S, Wada R, Lin W, Yamamoto T. Charge-changing cross section measurement of neutron-rich carbon isotopes at 50 AMeV. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611707023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Miyoshi T, Sakaguchi H, Katsuragi S, Ikeda T, Yoshimatsu J. Novel findings of fetal ectopic atrial tachycardia by cardiotocography. Ultrasound Obstet Gynecol 2015; 46:629-630. [PMID: 25612321 DOI: 10.1002/uog.14797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 01/13/2015] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Affiliation(s)
- T Miyoshi
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - H Sakaguchi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - S Katsuragi
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - T Ikeda
- Department of Obstetrics and Gynecology, Mie University, Tsu, Mie, Japan
| | - J Yoshimatsu
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
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Kubo K, Kimura T, Sakaguchi H, Imano N, Kawabata H, Takeuchi Y, Doi Y, Okabe T, Kenjo M, Ozawa S, Murakami Y, Nagata Y. Computed Tomographic Appearance of Radiation Injuries in Lung After Two Prescribed Dose of 48Gy With Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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48
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Imano N, Kimura T, Nishibuchi I, Nakashima T, Kubo K, Sakaguchi H, Kawabata H, Takeuchi Y, Doi Y, Okabe T, Kenjo M, Ozawa S, Murakami Y, Nagata Y. A Quantitative Index for Phase Selection in Planning of Respiratory Gating Radiation Therapy for Lung Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Takeuchi Y, Murakami Y, Kubo K, Sakaguchi H, Imano N, Kawabata H, Doi Y, Okabe T, Kenjo M, Kimura T, Nagata Y, Fujita M, Konishi M. Interstitial Brachytherapy for Early-Stage Tongue Cancer: Analysis of the Long-term Treatment Results for Survival and Complications. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Matsubara H, Tamii A, Nakada H, Adachi T, Carter J, Dozono M, Fujita H, Fujita K, Fujita Y, Hatanaka K, Horiuchi W, Itoh M, Kawabata T, Kuroita S, Maeda Y, Navrátil P, von Neumann-Cosel P, Neveling R, Okamura H, Popescu L, Poltoratska I, Richter A, Rubio B, Sakaguchi H, Sakaguchi S, Sakemi Y, Sasamoto Y, Shimbara Y, Shimizu Y, Smit FD, Suda K, Tameshige Y, Tokieda H, Yamada Y, Yosoi M, Zenihiro J. Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei. Phys Rev Lett 2015; 115:102501. [PMID: 26382672 DOI: 10.1103/physrevlett.115.102501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Indexed: 06/05/2023]
Abstract
Differential cross sections of isoscalar and isovector spin-M1 (0(+)→1(+)) transitions are measured using high-energy-resolution proton inelastic scattering at E(p)=295 MeV on (24)Mg, (28)Si, (32)S, and (36)Ar at 0°-14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to E(x)=16 MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei.
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Affiliation(s)
- H Matsubara
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Tamii
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Nakada
- Department of Physics, Chiba University, Inage, Chiba 263-8522, Japan
| | - T Adachi
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - J Carter
- School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - M Dozono
- Department of Physics, Kyushu University, Fukuoka 812-8581, Japan
| | - H Fujita
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - K Fujita
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Fujita
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - K Hatanaka
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - W Horiuchi
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - M Itoh
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T Kawabata
- Center for Nuclear Study (CNS), University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - S Kuroita
- Department of Physics, Kyushu University, Fukuoka 812-8581, Japan
| | - Y Maeda
- Department of Applied Physics, Miyazaki University, Miyazaki 889-2192, Japan
| | - P Navrátil
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - P von Neumann-Cosel
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - R Neveling
- iThemba LABS, National Research Foundation, Somerset West 7129, South Africa
| | - H Okamura
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - L Popescu
- Vakgroep Subatomaire en Stralingsfysica, Universiteit Gent, B-9000 Gent, Belgium
| | - I Poltoratska
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - A Richter
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - B Rubio
- Instituto of Fisica Corpuscular, CSIC-University de Valencia, E-46071 Valencia, Spain
| | - H Sakaguchi
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S Sakaguchi
- Center for Nuclear Study (CNS), University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Sakemi
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Y Sasamoto
- Center for Nuclear Study (CNS), University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Shimbara
- Graduate School of Science and Technology, Niigata University, Niigata 950-2102, Japan
| | - Y Shimizu
- Center for Nuclear Study (CNS), University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - F D Smit
- iThemba LABS, National Research Foundation, Somerset West 7129, South Africa
| | - K Suda
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Tameshige
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Tokieda
- Center for Nuclear Study (CNS), University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Yamada
- Department of Physics, Kyushu University, Fukuoka 812-8581, Japan
| | - M Yosoi
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - J Zenihiro
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
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