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  1. Article: Two Cases of Mechanical Thrombectomy in Patients with Fenestration of the M1 Segment of the Middle Cerebral Artery.

    Nakadate, Masashi / Kondo, Ryushi / Ishihara, Shoichiro / Uemiya, Nahoko / Kakehi, Yoshiaki / Hidaka, Yukihiro / Minamimura, Kenzo / Tokushige, Kazuo / Tsuzuki, Nobusuke

    NMC case report journal

    2024  Volume 11, Page(s) 99–102

    Abstract: M1 fenestration of the middle cerebral artery is rare. We present two patterns of acute thromboembolic conditions in M1 fenestrations treated with mechanical thrombectomy. Case 1 was a male in his 60s presenting with right hemiparesis and aphasia. ... ...

    Abstract M1 fenestration of the middle cerebral artery is rare. We present two patterns of acute thromboembolic conditions in M1 fenestrations treated with mechanical thrombectomy. Case 1 was a male in his 60s presenting with right hemiparesis and aphasia. Angiography showed acute left M1 proximal occlusion; the first direct aspiration revealed two parallel routes, and the second aspiration achieved complete recanalization of the left M1 fenestration. Case 2 was a male in his 70s presenting right hemiparesis and aphasia. Angiography revealed a sudden stair-like narrowing of the left M1 in the intermediate part, and a retrograde blood flow cavity was observed on the upper side of the distal part. Mechanical thrombectomy was performed to diagnose the upper limb occlusion of the left M1 fenestration, and successful recanalization was achieved through direct aspiration. Anatomical variations, such as fenestration, should be considered to reduce complication risks.
    Language English
    Publishing date 2024-04-05
    Publishing country Japan
    Document type Case Reports
    ISSN 2188-4226
    ISSN 2188-4226
    DOI 10.2176/jns-nmc.2023-0258
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Minimally invasive surgery for esophagogastric junction cancer with Leriche's syndrome-induced ischemic enteritis in the rectum: A case report.

    Ogawa, Yutaro / Yasuda, Tomohiko / Arai, Hiroki / Mine, Takahiko / Kakinuma, Daisuke / Minamimura, Keisuke / Matsumoto, Satoshi / Watanabe, Masanori / Nakamura, Yoshiharu / Yoshida, Hiroshi

    Clinical journal of gastroenterology

    2024  Volume 17, Issue 2, Page(s) 205–210

    Abstract: The incidence of esophagogastric junction cancer has been increasing, leading to growing interest in surgical treatment. Leriche syndrome, characterized by occlusion limited to the infrarenal aorta, has not been reported to be associated with ischemic ... ...

    Abstract The incidence of esophagogastric junction cancer has been increasing, leading to growing interest in surgical treatment. Leriche syndrome, characterized by occlusion limited to the infrarenal aorta, has not been reported to be associated with ischemic enteritis, and there are no previous reports on the surgical approaches for esophagogastric junction cancer in this disease.We describe the case of a male patient in his fifties with lower abdominal pain and melena who was diagnosed with esophagogastric junction cancer, Leriche syndrome, and ischemic enteritis. Contrast-enhanced computed tomography (CT) showed a hemorrhage from the cancer, occlusion of the abdominal aorta beyond the renal artery branches, and rectal contrast deficiency. Three-dimensional (3D)-CT angiography revealed occlusion from the lumbar artery bifurcation to the distal portions of both common iliac arteries plus numerous collateral pathways, indicating a precarious rectal blood supply. Based on 3D-CT angiography, minimally invasive surgery (MIS) using laparoscopy and thoracoscopy for esophagogastric junction cancer was performed after whole-body control. The patient was discharged without any postoperative complications.Esophagogastric junction cancer with Leriche syndrome can be complicated by ischemic enteritis due to tumor bleeding and fragile collateral pathways. MIS using laparoscopy and thoracoscopy guided by 3D-CT angiography can be safely performed for this disease.
    MeSH term(s) Humans ; Male ; Leriche Syndrome/complications ; Leriche Syndrome/surgery ; Rectum ; Esophagogastric Junction/surgery ; Ischemia ; Minimally Invasive Surgical Procedures ; Neoplasms/complications ; Enteritis
    Language English
    Publishing date 2024-01-28
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 2429411-1
    ISSN 1865-7265 ; 1865-7257
    ISSN (online) 1865-7265
    ISSN 1865-7257
    DOI 10.1007/s12328-023-01911-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: A Case of Diffuse Astrocytoma with 32-year Survival after Boron Neutron Capture Therapy.

    Kamano, Shuji / Matsuyama, Masayuki / Minamimura, Kenzo

    NMC case report journal

    2020  Volume 7, Issue 4, Page(s) 211–215

    Abstract: A 39-year-old man had received boron neutron capture therapy (BNCT) for a grade II astrocytoma (compatible with diffuse astrocytoma, not otherwise specified in the WHO 2016 criteria). He returned to his previous work after surgery, but, 7 years later, he ...

    Abstract A 39-year-old man had received boron neutron capture therapy (BNCT) for a grade II astrocytoma (compatible with diffuse astrocytoma, not otherwise specified in the WHO 2016 criteria). He returned to his previous work after surgery, but, 7 years later, he suddenly developed seizures, and his health condition deteriorated. Therefore, he underwent a second surgery. The mass removed in the second operation was mostly necrotic as a result of previous radiation treatment. He then showed no signs of recurrence and did not require any treatment other than antiepileptic drugs for 25 years. He was able to be employed by a listed company until the age of 65 years for light jobs as a physically handicapped individual. This case suggests the effectiveness of BNCT even for rather low-grade astrocytomas.
    Language English
    Publishing date 2020-09-14
    Publishing country Japan
    Document type Case Reports
    ISSN 2188-4226
    ISSN 2188-4226
    DOI 10.2176/nmccrj.cr.2019-0228
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Current Status of Robotic Hepatobiliary and Pancreatic Surgery.

    Minamimura, Keisuke / Aoki, Yuto / Kaneya, Youhei / Matsumoto, Satoshi / Arai, Hiroki / Kakinuma, Daisuke / Oshiro, Yukio / Kawano, Yoichi / Watanabe, Masanori / Nakamura, Yoshiharu / Suzuki, Hideyuki / Yoshida, Hiroshi

    Journal of Nippon Medical School = Nippon Ika Daigaku zasshi

    2024  Volume 91, Issue 1, Page(s) 10–19

    Abstract: Laparoscopic surgery is performed worldwide and has clear economic and social benefits in terms of patient recovery time. It is used for most gastrointestinal surgical procedures, but laparoscopic surgery for more complex procedures in the esophageal, ... ...

    Abstract Laparoscopic surgery is performed worldwide and has clear economic and social benefits in terms of patient recovery time. It is used for most gastrointestinal surgical procedures, but laparoscopic surgery for more complex procedures in the esophageal, hepatobiliary, and pancreatic regions remains challenging. Minimally invasive surgery that results in accurate tumor dissection is vital in surgical oncology, and development of surgical systems and instruments plays a key role in assisting surgeons to achieve this. A notable advance in the latter half of the 1990s was the da Vinci Surgical System, which involves master-slave surgical support robots. Featuring high-resolution three-dimensional (3D) imaging with magnification capabilities and forceps with multi-joint function, anti-shake function, and motion scaling, the system compensates for the drawbacks of conventional laparoscopic surgery. It is expected to be particularly useful in the field of hepato-biliary-pancreatic surgery, which requires delicate reconstruction involving complex liver anatomy with diverse vascular and biliary systems and anastomosis of the biliary tract, pancreas, and intestines. The learning curve is said to be short, and it is hoped that robotic surgery will be standardized in the near future. There is also a need for a standardized robotic surgery training system for young surgeons that can later be adapted to a wider range of surgeries. This systematic review describes trends and future prospects for robotic surgery in the hepatobiliary-pancreatic region.
    MeSH term(s) Humans ; Robotics/methods ; Robotic Surgical Procedures/methods ; Liver/diagnostic imaging ; Liver/surgery ; Laparoscopy/methods ; Hepatectomy/methods
    Language English
    Publishing date 2024-01-16
    Publishing country Japan
    Document type Systematic Review ; Journal Article
    ZDB-ID 2091563-9
    ISSN 1347-3409 ; 1345-4676
    ISSN (online) 1347-3409
    ISSN 1345-4676
    DOI 10.1272/jnms.JNMS.2024_91-109
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Current Status of Robotic Gastrointestinal Surgery.

    Minamimura, Keisuke / Hara, Keisuke / Matsumoto, Satoshi / Yasuda, Tomohiko / Arai, Hiroki / Kakinuma, Daisuke / Ohshiro, Yukio / Kawano, Youichi / Watanabe, Masanori / Suzuki, Hideyuki / Yoshida, Hiroshi

    Journal of Nippon Medical School = Nippon Ika Daigaku zasshi

    2023  Volume 90, Issue 4, Page(s) 308–315

    Abstract: Development of surgical support robots began in the 1980s as a navigation and auxiliary device for endoscopic surgery. For remote surgery on the battlefield, a master-slave-type surgical support robot was developed, in which a console surgeon operates ... ...

    Abstract Development of surgical support robots began in the 1980s as a navigation and auxiliary device for endoscopic surgery. For remote surgery on the battlefield, a master-slave-type surgical support robot was developed, in which a console surgeon operates the robot at will. The da Vinci surgical system, which currently dominates the global robotic surgery market, received United States Food and Drug Administration and regulatory approval in Japan in 2000 and 2009 respectively. The latest, fourth generation, da Vinci Xi has a good field of view via a three-dimensional monitor, highly operable forceps, a motion scale function, and a tremor-filtered articulated function. Gastroenterological tract robotic surgery is safe and minimally invasive when accessing and operating on the esophagus, stomach, colon, and rectum. The learning curve is said to be short, and robotic surgery will likely be standardized soon. Therefore, robotic surgery training should be systematized for young surgeons so that it can be further standardized and later adapted to a wider range of surgeries. This article reviews current trends and potential developments in robotic surgery.
    MeSH term(s) United States ; Humans ; Robotic Surgical Procedures ; Robotics ; Digestive System Surgical Procedures ; Stomach ; Rectum
    Language English
    Publishing date 2023-04-05
    Publishing country Japan
    Document type Review ; Journal Article
    ZDB-ID 2091563-9
    ISSN 1347-3409 ; 1345-4676
    ISSN (online) 1347-3409
    ISSN 1345-4676
    DOI 10.1272/jnms.JNMS.2023_90-404
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Feeding gastrostomy and duodenostomy using the round ligament of the liver versus conventional feeding jejunostomy after esophagectomy: a meta-analysis.

    Yasuda, Tomohiko / Matsuda, Akihisa / Arai, Hiroki / Kakinuma, Daisuke / Hagiwara, Nobutoshi / Kawano, Youichi / Minamimura, Keisuke / Matsutani, Takeshi / Watanabe, Masanori / Suzuki, Hideyuki / Yoshida, Hiroshi

    Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus

    2023  Volume 36, Issue 9

    Abstract: Esophageal cancer patients require enteral nutritional support after esophagectomy. Conventional feeding enterostomy to the jejunum (FJ) is occasionally associated with small bowel obstruction because the jejunum is fixed to the abdominal wall. Feeding ... ...

    Abstract Esophageal cancer patients require enteral nutritional support after esophagectomy. Conventional feeding enterostomy to the jejunum (FJ) is occasionally associated with small bowel obstruction because the jejunum is fixed to the abdominal wall. Feeding through an enteral feeding tube inserted through the reconstructed gastric tube (FG) or the duodenum (FD) using the round ligament of the liver have been suggested as alternatives. This meta-analysis aimed to compare short-term outcomes between FG/FD and FJ. Studies published prior to May 2022 that compared FG or FD with FJ in cancer patients who underwent esophagectomy were identified via electronic literature search. Meta-analysis was performed using the Mantel-Haenszel random-effects model to calculate Odds Ratios (ORs) with 95% confidence intervals (CIs). Five studies met inclusion criteria to yield a total of 1687 patients. Compared with the FJ group, the odds of small bowel obstruction (OR 0.09; 95% CI, 0.02-0.33), catheter site infection (OR 0.18; 95% CI, 0.06-0.51) and anastomotic leakage (OR 0.53; 95% CI, 0.32-0.89) were lower for the FG/FD group. Odds of pneumonia, recurrent laryngeal nerve palsy, chylothorax and hospital mortality did not significantly differ between the groups. The length of hospital stay was shorter for the FG/FD group (median difference, -10.83; 95% CI, -18.55 to -3.11). FG and FD using the round ligament of the liver were associated with lower odds of small bowel obstruction, catheter site infection and anastomotic leakage than FJ in esophageal cancer patients who underwent esophagectomy.
    MeSH term(s) Female ; Humans ; Enteral Nutrition ; Gastrostomy ; Jejunostomy/adverse effects ; Esophagectomy/adverse effects ; Anastomotic Leak/surgery ; Duodenostomy ; Postoperative Complications/etiology ; Postoperative Complications/surgery ; Liver/surgery ; Round Ligaments/surgery ; Esophageal Neoplasms/surgery
    Language English
    Publishing date 2023-09-01
    Publishing country United States
    Document type Meta-Analysis ; Journal Article
    ZDB-ID 639470-x
    ISSN 1442-2050 ; 1120-8694
    ISSN (online) 1442-2050
    ISSN 1120-8694
    DOI 10.1093/dote/doac105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: [Synchronous Resection of Gallbladder Hyperplasia Polyps with Pancreaticobiliary Maljunction without Dilation of the Bile Duct and Sigmoid Colon Carcinoma].

    Kubo, Kentaro / Shimizu, Atsushi / Minamimura, Keisuke / Mori, Kazuhiko / Hirata, Toru / Kobayashi, Takashi

    Gan to kagaku ryoho. Cancer & chemotherapy

    2019  Volume 46, Issue 8, Page(s) 1315–1317

    Abstract: We report synchronous resection of gallbladder hyperplasia polyps with pancreaticobiliary maljunction without dilation of the bile duct and sigmoid colon carcinoma. The patient was a 60-year-old woman diagnosed with sigmoid colon cancer. Gallbladder ... ...

    Abstract We report synchronous resection of gallbladder hyperplasia polyps with pancreaticobiliary maljunction without dilation of the bile duct and sigmoid colon carcinoma. The patient was a 60-year-old woman diagnosed with sigmoid colon cancer. Gallbladder polyps were detected incidentally during a preoperative examination for sigmoid colon cancer that was discovered because of anemia. Detailed examination revealed a suspected gallbladder carcinoma along with pancreaticobiliary maljunction without dilation of the bile duct. The patient underwent synchronous open colectomy and cholecystectomy. Histopathological diagnosis excluded gallbladder carcinoma, so we did not perform bile duct resection or lymph node resection around the bile duct. The final diagnosis was gallbladder hyperplasia polyps, chronic cholecystitis, and sigmoid colon cancer (pT3N2M0, stage Ⅲb). Therefore, physicians should pay attention to the possibility of pancreaticobiliary maljunction if gallbladder polyps are detected incidentally during preoperative examination for other diseases. In the present case, we could treat the patient with minimally invasive techniques by adding the treatment to that performed for the other disease.
    MeSH term(s) Bile Ducts ; Colon, Sigmoid ; Dilatation ; Female ; Gallbladder Neoplasms ; Humans ; Hyperplasia ; Middle Aged ; Pancreatic Ducts ; Sigmoid Neoplasms
    Language Japanese
    Publishing date 2019-09-09
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 604842-0
    ISSN 0385-0684
    ISSN 0385-0684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Displacement of the transverse colon is a highly specific computed tomography finding for the preoperative diagnosis of a transomental hernia.

    Ito, Ryota / Mori, Kazuhiko / Minamimura, Keisuke / Hirata, Toru / Kobayashi, Takashi / Kawasaki, Seiji

    Japanese journal of radiology

    2019  Volume 37, Issue 8, Page(s) 605–611

    Abstract: Purpose: A transomental hernia (TOH) is a rare type of internal hernia and is associated with a high strangulation rate and high mortality rate. Displacement of the transverse colon on computed tomography (CT) may be specific to a TOH and may facilitate ...

    Abstract Purpose: A transomental hernia (TOH) is a rare type of internal hernia and is associated with a high strangulation rate and high mortality rate. Displacement of the transverse colon on computed tomography (CT) may be specific to a TOH and may facilitate an early diagnosis. The aim of this study was to verify the effectiveness of a novel approach assessing displacement of the transverse colon for the preoperative diagnosis of a TOH.
    Materials and methods: We retrospectively reviewed the CT and operative data of 113 patients who underwent surgery for small bowel obstruction (SBO) between 2011 and 2018. The proportion of transverse colon loops posterior to dilated intestinal loops (PTPI) was calculated.
    Results: The patients were divided into a TOH group (n = 7) and other SBO group (n = 106). The median PTPI was significantly higher in the TOH group than in the other SBO group (67% [0-97%] vs. 0% [0-100%], Wilcoxon's test, p = 0.03). A receiver operating characteristic curve showed that when the PTPI was ≥ 57%, its sensitivity and specificity for a TOH were 71% and 94%, respectively.
    Conclusion: The PTPI is a reliable quantitative measure to distinguish a TOH from other types of SBOs.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Colon, Transverse/diagnostic imaging ; Female ; Hernia, Abdominal/complications ; Hernia, Abdominal/diagnostic imaging ; Humans ; Intestinal Obstruction/diagnostic imaging ; Intestinal Obstruction/etiology ; Intraoperative Care/methods ; Male ; Middle Aged ; Reproducibility of Results ; Retrospective Studies ; Sensitivity and Specificity ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2019-06-29
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2488907-6
    ISSN 1867-108X ; 1867-1071
    ISSN (online) 1867-108X
    ISSN 1867-1071
    DOI 10.1007/s11604-019-00851-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Increases in income inequality and non-regular employment

    Minamimura, Keiya / Nakamura, Tamotsu / Watanabe, Minoru

    Studies in medium-run macroeconomics : growth, fluctuations, unemployment, inequality and policies , p. 241-255

    a simple general equilibrium model

    2015  , Page(s) 241–255

    Author's details Keiya Minamimura and Tamotsu Nakamura; Minoru Watanabe
    Language English
    Size graph. Darst.
    Publisher World Scientific Publishing Co.
    Publishing place Singapore [u.a.]
    Document type Article
    ISBN 978-981-4619-57-8 ; 981-4619-57-4
    Database ECONomics Information System

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  10. Article ; Online: Validation of the Estimation of Physiologic Ability and Surgical Stress (E-PASS) score for maintenance hemodialysis patients undergoing elective abdominal surgery.

    Abe, Hayato / Mafune, Ken-Ichi / Minamimura, Keisuke / Hirata, Tooru

    Digestive surgery

    2014  Volume 31, Issue 4-5, Page(s) 269–275

    Abstract: Aims: This study assessed the validity of the Estimation of Physiologic Ability and Surgical Stress (E-PASS) score in maintenance hemodialysis patients undergoing elective abdominal surgery.: Methods: We retrospectively reviewed the medical records ... ...

    Abstract Aims: This study assessed the validity of the Estimation of Physiologic Ability and Surgical Stress (E-PASS) score in maintenance hemodialysis patients undergoing elective abdominal surgery.
    Methods: We retrospectively reviewed the medical records of 73 hemodialysis patients who underwent elective gastrointestinal surgery. The main outcomes analyzed were the E-PASS score and postoperative course, which were defined by mortality and morbidity. The discriminative capability of the E-PASS score was evaluated using receiver operating characteristic (ROC) curve analysis.
    Results: The overall mortality rate observed was 2.7% (2 patients) and the morbidity rate was 36.9%. There were no significant differences in the comprehensive risk score, preoperative score or surgical stress score for patients with or without complications (p = 0.556, 0.639 and 0.168, respectively). Subsequent ROC curve analysis demonstrated poor predictive accuracy for morbidity. When the results in our study population were compared with those in Haga's study population, our population exhibited a highly significant rightward shift (p < 0.001).
    Conclusion: The E-PASS score was a poor predictor of complications because maintenance hemodialysis patients already have relatively high risk factors. This scoring system should not be applied in such a special group with high risk factors.
    MeSH term(s) Aged ; Aged, 80 and over ; Area Under Curve ; Cohort Studies ; Digestive System Surgical Procedures/methods ; Digestive System Surgical Procedures/mortality ; Digestive System Surgical Procedures/psychology ; Elective Surgical Procedures/methods ; Elective Surgical Procedures/mortality ; Elective Surgical Procedures/psychology ; Female ; Hospital Mortality ; Humans ; Japan ; Kidney Failure, Chronic/diagnosis ; Kidney Failure, Chronic/therapy ; Logistic Models ; Long-Term Care ; Male ; Middle Aged ; Postoperative Complications/mortality ; Prognosis ; Psychological Tests ; ROC Curve ; Renal Dialysis/adverse effects ; Renal Dialysis/methods ; Retrospective Studies ; Risk Assessment ; Statistics, Nonparametric ; Stress, Physiological ; Survival Rate ; Treatment Outcome
    Language English
    Publishing date 2014
    Publishing country Switzerland
    Document type Journal Article ; Validation Studies
    ZDB-ID 605888-7
    ISSN 1421-9883 ; 0253-4886
    ISSN (online) 1421-9883
    ISSN 0253-4886
    DOI 10.1159/000365293
    Database MEDical Literature Analysis and Retrieval System OnLINE

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