Faculty Profiles - IWAMURO Masaya

Papers - IWAMURO Masaya

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治療方針決定に免疫染色が有用だった腺癌の1例

石川俊二郎, 岩室雅也, 灘隆宏, 木村耕介, 中村絵里, 萩谷英大, 長谷川功, 浅野喜久子, 早稲田公一, 花山宜久, 近藤英生, 大塚文夫

日本病院総合診療医学会雑誌 8 ( 2 ) 86 - 87 2015.6

ICU管理が必要となったmulticentric Castleman disease(MCD)/TAFRO症候群(2)

木村耕介, 近藤英生, 松岡賢市, 灘隆弘, 中村絵里, 岩室雅也, 浅野喜久子, 長谷川巧, 萩谷英大, 早稲田公一, 花山宜久, 村上和敏, 飯田淳義, 塚原紘平, 鵜川豊世武, 谷本光音, 吉野正, 大塚文男

日本リンパ網内系学会会誌 55 115 - 115 2015.6

Magnifying Endoscopic Observation of Duodenal Involvement of Follicular Lymphoma before and after Chemotherapy Reviewed

Masaya Iwamuro, Hiroyuki Okada, Katsuyoshi Takata, Nobuharu Fujii, Seiji Kawano, Yoshiro Kawahara, Tadashi Yoshino, Kazuhide Yamamoto

INTERNAL MEDICINE 54 ( 14 ) 1741 - 1745 2015

Morphological Changes in a Pyogenic Granuloma of the Esophagus Observed over Three Years Reviewed

Masaya Iwamuro, Hiroyuki Okada, Takehiro Tanaka, Keisuke Hori, Masahide Kita, Seiji Kawano, Yoshiro Kawahara, Kazuhide Yamamoto

INTERNAL MEDICINE 54 ( 14 ) 1737 - 1740 2015

Ectopic pancreas in the stomach successfully resected by endoscopic submucosal dissection Reviewed

Masaya Iwamuro, Takao Tsuzuki, Shogen Ohya, Hiroyuki Okada, Takehiro Tanaka, Keisuke Hori, Masahide Kita, Seiji Kawano, Yoshiro Kawahara, Kazuhide Yamamoto

Case Reports in Medicine 2015 1 2015

Hyperintense Lesion in the Pons in Intravascular Lymphoma Reviewed

Masaya Iwamuro, Kosuke Kimura, Eisei Kondo, Fumio Otsuka

INTERNAL MEDICINE 54 ( 18 ) 2421 - 2422 2015

A Nephrostomy-associated Urinary Tract Infection Caused by Elizabethkingia meningoseptica Reviewed

Hideharu Hagiya, Hiroko Ogawa, Yusuke Takahashi, Kou Hasegawa, Masaya Iwamuro, Fumio Otsuka

INTERNAL MEDICINE 54 ( 24 ) 3233 - 3236 2015

An effective and safe sedation technique combining target-controlled infusion pump with propofol, intravenous pentazocine, and bispectral index monitoring for peroral double-balloon endoscopy. Reviewed International journal

Seiji Kawano, Hiroyuki Okada, Masaya Iwamuro, Yoshiyasu Kouno, Kou Miura, Toshihiro Inokuchi, Hiromitsu Kanzaki, Keisuke Hori, Keita Harada, Sakiko Hiraoka, Yoshiro Kawahara, Kazuhide Yamamoto

Digestion 91 ( 2 ) 112 - 6 2015

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND/AIMS: Because peroral double-balloon endoscopy (DBE) is a time-consuming, painful procedure, sedation with analgesics, and/or anesthetics is generally required. The aim of this prospective study was to investigate the safety and efficacy of our sedation protocol for peroral DBE, which consisted of target-controlled infusion (TCI) anesthesia with propofol, an intravenous bolus of pentazocine, and bispectral index (BIS) monitoring. METHODS: A total of 34 consecutive patients who underwent DBE by the oral approach were enrolled. Patients were primarily sedated with a continuous infusion of propofol and adjusted in accordance with the BIS levels. The bolus infusion of pentazocine was performed when the propofol infusion was insufficient. The primary outcome measure of this study was to ensure the safety and efficacy of this sedation technique. The secondary purpose was to identify the characteristics of the patient who required the bolus infusion of pentazocine. RESULTS: Five patients (14.7%) required a reduction in the dose of propofol. However, no patient experienced any serious adverse events. All patients (100%) and 80.6% (25/31) of endoscopists answered that the sedation protocol was 'excellent' or 'enough' for peroral DBE. Eleven patients (32.3%) required a bolus injection of pentazocine. Age <60 years and a total procedure time of >70 min were significant risk-factors for pentazocine use. CONCLUSIONS: A combination of propofol via TCI pump, bolus injection of pentazocine as needed, and BIS monitoring was a safe and effective procedure for peroral DBE. Reasonable satisfaction indices were obtained from both patients and endoscopists. Pentazocine was required for young patients and in cases with longer procedure times.

DOI： 10.1159/000369614

PubMed

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Hereditary Spherocytosis in a Middle-aged Man Complicated with Common Bile Duct Stones Reviewed

Hiroaki Sawahara, Masaya Iwamuro, Ryo Harada, Masao Yoshioka, Takefumi Niguma, Tetsushige Mimura, Kazuhide Yamamoto

INTERNAL MEDICINE 54 ( 12 ) 1509 - 1512 2015

Ultrastructural Analysis of an Enterolith Composed of Deoxycholic Acid Reviewed

Masaya Iwamuro, Yuichi Miyashima, Takahiro Yoshioka, Toshihiro Murata, Yoshio Miyabe, Yoshinari Kawai, Haruo Urata, Hidenori Shiraha, Hiroyuki Okada, Kazuhide Yamamoto

ACTA MEDICA OKAYAMA 68 ( 6 ) 369 - 374 2014.12

Ultrastructural analysis of a gastric persimmon phytobezoar Reviewed

Masaya Iwamuro, Haruo Urata, Masumi Furutani, Yoshinari Kawai, Hidenori Shiraha, Akinobu Takaki, Hiroyuki Okada, Kazuhide Yamamoto

CLINICS AND RESEARCH IN HEPATOLOGY AND GASTROENTEROLOGY 38 ( 4 ) E85 - E87 2014.9

The efficacy and safety of single-session endoscopic ultrasound-guided fine needle aspiration and endoscopic retrograde cholangiopancreatography for evaluation of pancreatic masses. International journal

Yasuhiro Noma, Hirofumi Kawamoto, Hironari Kato, Masaya Iwamuro, Ken Hirao, Masakuni Fujii, Koichiro Tsutsumi, Shigeru Horiguchi, Naoki Yamamoto, Ichiro Sakakihara, Takeshi Tomoda, Kazuyuki Matsumoto, Hiroyuki Okada, Kazuhide Yamamoto

Hepato-gastroenterology 61 ( 134 ) 1775 - 9 2014.9

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND/AIMS: There have been limited studies evaluating single-session EUS-FNA and ERCP for evaluation of pancreatic masses. The aim of this study was to determine the safety of single-session EUS-FNA and ERCP, and to compare the diagnostic accuracies of cytodiagnosis by EUS-FNA, ERCP, and their combination. METHODOLOGY: A total of 100 patients with pancreatic masses were prospectively enrolled. All patients underwent single-session EUS-FNA and ERCP. The main outcome measurement was frequency of post-procedural complications. Another measurement was diagnostic accuracy of cytodiagnosis by EUS-FNA, ERCP, and their combination. RESULTS: Procedure-related pancreatitis occurred in 10 patients, but all patients were conservatively managed. Cytodiagnosis by EUS-FNA was significantly superior to ERCP in accuracy. In patients with a pancreatic head mass, 3 cases of false negative EUS-FNA were positive on ERCP. The combination procedures improved accuracy compared with EUS-FNA alone. By contrast, in the subgroup of the pancreatic body or tail mass, the combination of EUS-FNA and ERCP did not improve cytodiagnosis compared to that with EUS-FNA alone. CONCLUSIONS: Single-session EUS-FNA and ERCP appears to be as safe as performing each procedure separately. EUS-FNA should be considered the principal procedure for cytodiagnosis. ERCP has only a complementary role in patients with pancreatic head mass.

DOI： 10.5754/hge13523

PubMed

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An expanded training program for endosonographers improved self-diagnosed accuracy of endoscopic ultrasound-guided fine-needle aspiration cytology of the pancreas. Reviewed

Harada R, Kato H, Fushimi S, Iwamuro M, Inoue H

Scand J Gastroenterol. 49 ( 9 ) 1119 - 1123 2014.9

A case of follicular lymphoma involving the colon

Shiho Takashima, Masaya Iwamuro, Tomoki Inaba, Satoko Nakamura, Koichi Izumikawa, Shigenao Ishikawa, Masaki Wato, Kozo Kawai, Hiroyuki Okada, Kazuhide Yamamoto

Gastroenterological Endoscopy 56 ( 8 ) 2393 - 2399 2014.8

Establishment of a pancreatic stem cell line from fibroblast-derived induced pluripotent stem cells Reviewed

Takashi Kuise, Hirofumi Noguchi, Hiroshi Tazawa, Takashi Kawai, Masaya Iwamuro, Issei Saitoh, Hitomi Usui Kataoka, Masami Watanabe, Yasufumi Noguchi, Toshiyoshi Fujiwara

BIOMEDICAL ENGINEERING ONLINE 13 2014.5

Potential of adenovirus-mediated REIC/Dkk-3 gene therapy for use in the treatment of pancreatic cancer Reviewed

Daisuke Uchida, Hidenori Shiraha, Hironari Kato, Teruya Nagahara, Masaya Iwamuro, Junro Kataoka, Shigeru Horiguchi, Masami Watanabe, Akinobu Takaki, Kazuhiro Nouso, Yasutomo Nasu, Takahito Yagi, Hiromi Kumon, Kazuhide Yamamoto

JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY 29 ( 5 ) 973 - 983 2014.5

Diagnostic accuracy of endoscopic biopsies for the diagnosis of gastrointestinal follicular lymphoma: a clinicopathologic study of 48 patients Reviewed

Masaya Iwamuro, Hiroyuki Okada, Katsuyoshi Takata, Soichiro Nose, Katsuya Miyatani, Tadashi Yoshino, Kazuhide Yamamoto

ANNALS OF DIAGNOSTIC PATHOLOGY 18 ( 2 ) 99 - 103 2014.4

Regression of metastatic colon tumour from primary adenocarcinoma of the lung due to fistulisation to the bowel lumen Reviewed

Masaya Iwamuro, Yoshio Miyabe, Hanae Kai, Yoshinari Kawai, Katsuyoshi Takata, Toshi Murakami, Hirofumi Mifune, Kazuhide Yamamoto

ecancermedicalscience 8 ( 1 ) 2014.3

Elevated soluble IL-2 receptor levels correlate with tumor bulk of follicular lymphomas with intestinal involvement Reviewed

Masaya Iwamuro, Katsuji Shinagawa, Hiroyuki Okada, Katsuyoshi Takata, Tadashi Yoshino, Kazuhide Yamamoto

CLINICAL BIOCHEMISTRY 47 ( 3 ) 191 - 195 2014.2

In Vitro Analysis of Gastric Phytobezoar Dissolubility by Coca-Cola, Coca-Cola Zero, Cellulase, and Papain Reviewed

Masaya Iwamuro, Yoshinari Kawai, Hidenori Shiraha, Akinobu Takaki, Hiroyuki Okada, Kazuhide Yamamoto

JOURNAL OF CLINICAL GASTROENTEROLOGY 48 ( 2 ) 190 - 191 2014.2

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Papers - IWAMURO Masaya