Faculty Profiles - MAEDA Keiko

Papers - MAEDA Keiko

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Detection of Colorectal Neoplasms Using Linked Color Imaging: A Prospective, Randomized, Tandem Colonoscopy Trial. Reviewed International journal

Issei Hasegawa, Takeshi Yamamura, Hiroto Suzuki, Keiko Maeda, Tsunaki Sawada, Yasuyuki Mizutani, Eri Ishikawa, Takuya Ishikawa, Naomi Kakushima, Kazuhiro Furukawa, Eizaburo Ohno, Hiroki Kawashima, Masanao Nakamura, Mitsuhiro Fujishiro

Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association Vol. 19 ( 8 ) page： 1708 - + 2021.8

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

BACKGROUND AND AIMS: A higher adenoma detection rate (ADR) has been shown to be related to a lower incidence and mortality of colorectal cancer. We analyzed the efficacy of linked color imaging (LCI) by assessing the detection, miss, and visibility of various featured adenomas as compared with white light imaging (WLI). METHODS: This was a prospective, randomized, tandem trial. The participants were randomly assigned to 2 groups: first observation by LCI, then second observation by WLI (LCI group); or both observations by WLI (WLI group). Suspected neoplastic lesions were resected after magnifying image-enhanced endoscopy. The primary outcome was to compare the ADR during the first observation. Secondary outcomes included evaluation of adenoma miss rate (AMR) and visibility score. RESULTS: A total of 780 patients were randomized, 700 of whom were included in the final analysis. The ADR was 69.6% and 63.2% in the LCI and WLI groups, respectively, with no significant difference. However, LCI improved the average ADR in low-detectors compared with high-detectors (76.0% vs 55.1%; P < .001). Total AMR was 20.6% in the LCI group, which was significantly lower than that in the WLI group (31.1%) (P < .001). AMR in the LCI group was significantly lower, especially for diminutive adenomas (23.4% vs 35.1%; P < .001) and nonpolypoid lesions (25.6% vs 37.9%; P < .001) compared with the WLI group. CONCLUSION: Although both methods provided a similar ADR, LCI had a lower AMR than WLI. LCI could benefit endoscopists with lower ADR, an observation that warrants additional study. (UMIN Clinical Trials Registry, Number: UMIN000026359).

DOI： 10.1016/j.cgh.2021.04.004

Web of Science

Scopus

PubMed

Difference of efficacy for small bowel lesion in Crohn

Sawada, T; Nakamura, M; Yamamura, T; Maeda, K; Ishikawa, E; Fujishiro, M

JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY Vol. 36 page： 116 - 116 2021.8

An evaluation of resectability among endoscopic treatment methods for rectal neuroendocrine tumors <10 mm. Reviewed International journal

Kazuhiro Toriyama, Takeshi Yamamura, Masanao Nakamura, Keiko Maeda, Tsunaki Sawada, Yasuyuki Mizutani, Eri Ishikawa, Kazuhiro Furukawa, Takuya Ishikawa, Eizaburo Ohno, Hiroki Kawashima, Mitsuhiro Fujishiro

Arab journal of gastroenterology : the official publication of the Pan-Arab Association of Gastroenterology Vol. 22 ( 2 ) page： 104 - 110 2021.6

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

BACKGROUND AND STUDY AIMS: With respect to rectal neuroendocrine tumor (NET) resection, it remains unclear which of the following methods is the most effective: conventional endoscopic mucosal resection (cEMR), EMR using a fitted cap (EMR-C), EMR with a ligation band device (EMR-L), or endoscopic submucosal dissection (ESD). Thus, in this study, we aim to retrospectively evaluate the most effective endoscopic resection for rectal NETs < 10 mm. PATIENTS AND METHODS: In total, 61 consecutive patients with primary rectal NETs < 10 mm in diameter were included in this study; they were then divided into three groups: those with cEMR; those with modified EMR (mEMR) involving EMR-C and EMR-L; and those with ESD. The primary endpoint was to evaluate the difference in the complete en bloc resection rate. The secondary endpoint was to investigate differences in procedure time and complications. RESULTS: Among the three groups, a significant difference was found in procedure time (cEMR vs ESD, P < .01; mEMR vs ESD, P < .01), en bloc resection rate (cEMR vs mEMR, P = .015), tumor size (mEMR vs ESD, P < .01), percentage of tumor diameter ≥ 5 mm (mEMR vs ESD, P < .01), and complete en bloc resection rate (cEMR vs mEMR, P = .014). Meanwhile, no significant difference was noted in terms of complication rate among the three groups. CONCLUSION: The mEMR was the most suitable resection method for rectal NETs < 10 mm with respect to the risks and benefits from procedure-related factors, such as complete en bloc resection rate, procedure time, and complication rate.

DOI： 10.1016/j.ajg.2021.05.007

Web of Science

Scopus

PubMed

Diagnostic yield of colon capsule endoscopy for Crohn's disease lesions in the whole gastrointestinal tract

Yamada Keisaku, Nakamura Masanao, Yamamura Takeshi, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Eri, Ishikawa Takuya, Kakushima Naomi, Furukawa Kazuhiro, Ohno Eizaburo, Kawashima Hiroki, Honda Takashi, Ishigami Masatoshi, Fujishiro Mitsuhiro

BMC GASTROENTEROLOGY Vol. 21 ( 1 ) 2021.2

Ustekinumab is effective against small bowel lesions in Crohn's disease: two case reports

Murate Kentaro, Nakamura Masanao, Yamamura Takeshi, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Eri, Kakushima Naomi, Furukawa Kazuhiro, Ohno Eizaburo, Honda Takashi, Kawashima Hiroki, Ishigami Masatoshi, Fujishiro Mitsuhiro

CLINICAL JOURNAL OF GASTROENTEROLOGY Vol. 14 ( 1 ) page： 129 - 135 2021.2

Gastrointestinal tract metastasis of lung cancer: The PD-L1 expression and correlated clinicopathological variables

Ishikawa Eri, Nakaguro Masato, Nakamura Masanao, Yamamura Takeshi, Sawada Tsunaki, Mizutani Yasuyuki, Maeda Keiko, Furukawa Kazuhiro, Shimoyama Yoshie, Kawashima Hiroki, Fujishiro Mitsuhiro

PATHOLOGY INTERNATIONAL Vol. 71 ( 1 ) page： 33 - 41 2021.1

The microbiome can predict mucosal healing in small intestine in patients with Crohn's disease

Hattori Shun, Nakamura Masanao, Yamamura Takeshi, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Yamamoto Kenta, Ishikawa Takuya, Furukawa Kazuhiro, Ohno Eizaburo, Honda Takashi, Kawashima Hiroki, Ishigami Masatoshi, Hirooka Yoshiki, Fujishiro Mitsuhiro

JOURNAL OF GASTROENTEROLOGY Vol. 55 ( 12 ) page： 1138 - 1149 2020.12

Endoscopic Ultrasound Elastography as a Novel Diagnostic Method for the Assessment of Hardness and Depth of Invasion in Colorectal Neoplasms

Esaki Masaya, Yamamura Takeshi, Nakamura Masanao, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Eri, Suzuki Hiroto, Kuno Takeshi, Yamada Kentaro, Hasegawa Issei, Ishikawa Takuya, Kakushima Naomi, Furukawa Kazuhiro, Ohno Eizaburo, Kawashima Hiroki, Hirooka Yoshiki, Fujishiro Mitsuhiro

DIGESTION 2020.11

Accuracy of carbon dioxide insufflation for endoscopic retrograde cholangiopancreatography using double-balloon endoscopy

Niwa Yoshiki, Nakamura Masanao, Kawashima Hiroki, Yamamura Takeshi, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Eri, Ishikawa Takuya, Kakushima Naomi, Furukawa Kazuhiro, Ohno Eizaburo, Honda Takashi, Ishigami Masatoshi, Fujishiro Mitsuhiro

WORLD JOURNAL OF GASTROENTEROLOGY Vol. 26 ( 42 ) page： 6669 - 6678 2020.11

Endoscopic Activity and Serum TNF-alpha Level at Baseline Are Associated With Clinical Response to Ustekinumab in Crohn's Disease Patients

Murate Kentaro, Maeda Keiko, Nakamura Masanao, Sugiyama Daisuke, Wada Hirotaka, Yamamura Takeshi, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Takuya, Furukawa Kazuhiro, Ohno Eizaburo, Honda Takashi, Kawashima Hiroki, Miyahara Ryoji, Ishigami Masatoshi, Nishikawa Hiroyoshi, Fujishiro Mitsuhiro

INFLAMMATORY BOWEL DISEASES Vol. 26 ( 11 ) page： 1669 - 1681 2020.11

Mutation analysis of gastrointestinal stromal tumors using RNA obtained via endoscopic ultrasound-guided fine-needle aspiration

Funasaka Kohei, Miyahara Ryoji, Furukawa Kazuhiro, Sawada Tsunaki, Maeda Keiko, Yamamura Takeshi, Ishikawa Takuya, Ohno Eizaburo, Nakamura Masanao, Kawashima Hiroki, Hirooka Yoshiki, Ohmiya Naoki, Fujishiro Mitsuhiro

TRANSLATIONAL ONCOLOGY Vol. 13 ( 11 ) 2020.11

New modality for the quantitative evaluation of tissue elasticity using a forward-viewing radial-array echoendoscope for colorectal neoplasms

Esaki Masaya, Yamamura Takeshi, Nakamura Masanao, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Eri, Furukawa Kazuhiro, Kawashima Hiroki, Hirooka Yoshiki, Fujishiro Mitsuhiro

INTERNATIONAL JOURNAL OF COLORECTAL DISEASE 2020.10

A forward-viewing radial-array echoendoscope is useful for diagnosing the depth of colorectal neoplasia invasion

Kuno Takeshi, Yamamura Takeshi, Nakamura Masanao, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Esaki Masaya, Ishikawa Takuya, Furukawa Kazuhiro, Ohno Eizaburo, Kawashima Hiroki, Fujishiro Mitsuhiro

SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES 2020.9

診断に苦慮した広範囲胆管癌の1例

芳川昌功, 川嶋啓揮, 大野栄三郎, 石川卓哉, 小屋敏也, 田中浩敬, 酒井大輔, 飯田忠, 西尾亮, 鈴木博貴, 植月康太, 八鹿潤, 山田健太, 澤田つな騎, 前田啓子, 山村健史, 古川和宏, 舩坂好平, 中村正直, 宮原良二, 廣岡芳樹

肝胆膵治療研究会誌 Vol. 16 ( 1 ) page： 93 - 93 2020.9

表在型食道扁平上皮癌におけるLinked Color Imagingで観察される色情報と深達度および血管径との相関に関する検討

小林健一, 宮原良二, 舩坂好平, 古川和宏, 澤田つな騎, 前田啓子, 山村健史, 石川卓也, 大野栄三郎, 中村正直, 川嶋啓揮, 中黒匡人, 奥村結希, 廣岡芳樹, 藤城光弘

Gastroenterological Endoscopy Vol. 62 ( 9 ) page： 1624 - 1633 2020.9

Language：Japanese Publisher：(一社)日本消化器内視鏡学会

【背景】食道扁平上皮癌の治療方針決定に正確な深達度診断が重要であるが,MM/SM1の正診率は低く解決すべき課題となっている.本研究の目的はLED光源を用いたLCIにおける食道表在癌に対する色と深達度の関連性について検討することである.【方法】表在型食道癌と診断された病変に対し白色光につづいてLCIで観察を行った.色合いの評価についてはCIE-L*a*b*空間を用いて色値を算出し,深達度ごとの癌部と非癌部の色差を算出した.血管径およびintrapapillary capillary loopの分岐角を病理的に算出し,色合いとの相関を検討した.【結果】48症例52病変が登録された.深達度別の正常と病変部の色差において,MM/SM1以深群ではEP/LPM群に比べて有意に色差が大きかった(P=0.025).血管径はb*値と弱い正の相関を認めた(相関係数=0.302,P=0.033).【結論】LED光源を用いたLCI観察は,表在型食道癌における深達度診断の向上に有用である可能性があるが,その有用性を示すのにはさらなる検討が必要である.(著者抄録)

特集クローン病小腸狭窄病変に対する内視鏡的バルーン拡張術─基本からピットフォールまで Ⅱ.クローン病小腸狭窄病変に対するバルーン拡張術(4)クローン病におけるバルーン拡張術のコツ　a.ダブルバルーン内視鏡の立場から

中村正直, 山村健史, 前田啓子, 澤田つな騎, 水谷泰之, 石川恵里, 古川和宏, 角嶋　直美, 藤城光弘

INTESTINE Vol. 24 ( 3 ) page： 197 - 202 2020.8

特集分子標的時代のIBD 診療 -IBD の寛解導入,寛解維持の実践 3.IBD 治療における寛解導入と寛解維持に関するトピック(5)UC 関連腫瘍の早期診断と治療

山村健史, 中村正直, 前田啓子, 澤田つな騎, 石川恵里, 喜田裕一, 古川和宏, 川嶋啓揮, 藤城光弘

臨床消化器内科 Vol. 35 ( 10 ) page： 1267 - 1273 2020.8

Subjective Symptoms in Patients with Eosinophilic Esophagitis Are Related to Esophageal Wall Thickness and Esophageal Body Pressure.

Muroi K, Kakushima N, Furukawa K, Ishikawa E, Sawada T, Ishikawa T, Maeda K, Yamamura T, Ohno E, Nakamura M, Kawashima H, Funasaka K, Miyahara R, Fujishiro M

Digestive diseases and sciences 2020.8

Filtrated Adipose Tissue-Derived Mesenchymal Stem Cell Lysate Ameliorates Experimental Acute Colitis in Mice.

Nishikawa T, Maeda K, Nakamura M, Yamamura T, Sawada T, Mizutani Y, Ito T, Ishikawa T, Furukawa K, Ohno E, Miyahara R, Kawashima H, Honda T, Ishigami M, Yamamoto T, Matsumoto S, Hotta Y, Fujishiro M

Digestive diseases and sciences 2020.6

Clinical Factors Associated with Missing Colorectal Polyp on Colon Capsule Endoscopy

Yamada Keisaku, Nakamura Masanao, Yamamura Takeshi, Maeda Keiko, Sawada Tsunaki, Mizutani Yasuyuki, Ishikawa Takuya, Furukawa Kazuhiro, Ohno Eizaburo, Miyahara Ryoji, Kawashima Hiroki, Hotta Naoki, Hirooka Yoshiki

DIGESTION Vol. 101 ( 3 ) page： 316-322 2020.5

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Papers - MAEDA Keiko