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306 results on '"Hanaoka, Noboru"'

1. Final Analysis of Diagnostic Endoscopic Resection Followed by Selective Chemoradiotherapy for Stage I Esophageal Cancer: JCOG0508

Author

Mizuaswa, Junki, Takizawa, Kohei, Aoyama, Ikuo, Ishiyama, Akiyoshi, Kawata, Noboru, Kikuchi, Daisuke, Hanaoka, Noboru, Oda, Ichiro, Morita, Yoshinori, Tajika, Masahiro, Fujiwara, Junko, Yamamoto, Yoshinobu, Katada, Chikatoshi, Hori, Shinichiro, Doyama, Hisashi, Oyama, Tsuneo, Nebiki, Hiroko, Amagai, Kenji, Kubota, Yutaro, Inokuchi, Yasuhiro, Kobayashi, Nozomu, Suzuki, Takuto, Hirasawa, Kingo, Takeuchi, Toshihisa, Kadota, Tomohiro, Nihei, Keiji, Minashi, Keiko, Yano, Tomonori, Shimoda, Tadakazu, Fukuda, Haruhiko, and Muto, Manabu

Published
2023
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2. Efficacy of polyglycolic acid sheeting with fibrin glue for perforations related to gastrointestinal endoscopic procedures: a multicenter retrospective cohort study

Author

Takimoto, Kengo, Matsuura, Noriko, Nakano, Yoshiko, Tsuji, Yosuke, Takizawa, Kohei, Morita, Yoshinori, Nagami, Yasuaki, Hirasawa, Kingo, Araki, Hiroshi, Yamaguchi, Naoyuki, Aoyagi, Hiroyuki, Matsuhashi, Tamotsu, Iizuka, Toshiro, Saegusa, Hisanobu, Yamazaki, Kenji, Hori, Shinichiro, Mannami, Tomohiko, Hanaoka, Noboru, Mori, Hirohito, Kobara, Hideki, Takeuchi, Yoji, and Ono, Hiroyuki

Published
2022
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3. Chromoendoscopy

Author

Hanaoka, Noboru, Uedo, Noriya, Chiu, Philip W. Y., editor, Sano, Yasushi, editor, Uedo, Noriya, editor, and Singh, Rajvinder, editor

Published
2021
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4. Efficacy of Endoscopic Resection and Selective Chemoradiotherapy for Stage I Esophageal Squamous Cell Carcinoma

Author

Minashi, Keiko, Nihei, Keiji, Mizusawa, Junki, Takizawa, Kohei, Yano, Tomonori, Ezoe, Yasumasa, Tsuchida, Tomohiro, Ono, Hiroyuki, Iizuka, Toshiro, Hanaoka, Noboru, Oda, Ichiro, Morita, Yoshinori, Tajika, Masahiro, Fujiwara, Junko, Yamamoto, Yoshinobu, Katada, Chikatoshi, Hori, Shinichiro, Doyama, Hisashi, Oyama, Tsuneo, Nebiki, Hiroko, Amagai, Kenji, Kubota, Yutaro, Nishimura, Ken, Kobayashi, Nozomu, Suzuki, Takuto, Hirasawa, Kingo, Takeuchi, Toshihisa, Fukuda, Haruhiko, and Muto, Manabu

Published
2019
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7. Efficacy of vonoprazan in prevention of bleeding from endoscopic submucosal dissection-induced gastric ulcers: a prospective randomized phase II study

Author

Hamada, Kenta, Uedo, Noriya, Tonai, Yusuke, Arao, Masamichi, Suzuki, Sho, Iwatsubo, Taro, Kato, Minoru, Shichijo, Satoki, Yamasaki, Yasushi, Matsuura, Noriko, Nakahira, Hiroko, Kanesaka, Takashi, Yamamoto, Sachiko, Akasaka, Tomofumi, Hanaoka, Noboru, Takeuchi, Yoji, Higashino, Koji, Ishihara, Ryu, Okada, Hiroyuki, Iishi, Hiroyasu, Fukui, Keisuke, and Shimokawa, Toshio

Published
2019
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8. Endoscopic Balloon Dilation Followed By Intralesional Steroid Injection for Anastomotic Strictures After Esophagectomy: A Randomized Controlled Trial

Author

Hanaoka, Noboru, Ishihara, Ryu, Motoori, Masaaki, Takeuchi, Yoji, Uedo, Noriya, Matsuura, Noriko, Hayashi, Yoshito, Yamada, Takuya, Yamashina, Takeshi, Higashino, Koji, Akasaka, Tomofumi, Yano, Masahiko, Ito, Yuri, Miyata, Hiroshi, Sugimura, Keijiro, Hamada, Kenta, Yamasaki, Yasushi, Kanesaka, Takashi, Aoi, Kenji, Ito, Takashi, and Iishi, Hiroyasu

Published
2018
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9. Final Analysis of Diagnostic Endoscopic Resection Followed by Selective Chemoradiotherapy for Stage I Esophageal Cancer: JCOG0508

Author

Nihei, Keiji, primary, Minashi, Keiko, additional, Yano, Tomonori, additional, Shimoda, Tadakazu, additional, Fukuda, Haruhiko, additional, Muto, Manabu, additional, Mizuaswa, Junki, additional, Takizawa, Kohei, additional, Aoyama, Ikuo, additional, Ishiyama, Akiyoshi, additional, Kawata, Noboru, additional, Kikuchi, Daisuke, additional, Hanaoka, Noboru, additional, Oda, Ichiro, additional, Morita, Yoshinori, additional, Tajika, Masahiro, additional, Fujiwara, Junko, additional, Yamamoto, Yoshinobu, additional, Katada, Chikatoshi, additional, Hori, Shinichiro, additional, Doyama, Hisashi, additional, Oyama, Tsuneo, additional, Nebiki, Hiroko, additional, Amagai, Kenji, additional, Kubota, Yutaro, additional, Inokuchi, Yasuhiro, additional, Kobayashi, Nozomu, additional, Suzuki, Takuto, additional, Hirasawa, Kingo, additional, Takeuchi, Toshihisa, additional, and Kadota, Tomohiro, additional

Published
2023
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12. Efficacy and Safety of Endoscopic Resection Followed by Chemoradiotherapy for Superficial Esophageal Squamous Cell Carcinoma: A Retrospective Study

Author

Hamada, Kenta, Ishihara, Ryu, Yamasaki, Yasushi, Hanaoka, Noboru, Yamamoto, Sachiko, Arao, Masamichi, Suzuki, Sho, Iwatsubo, Taro, Kato, Minoru, Tonai, Yusuke, Shichijo, Satoki, Matsuura, Noriko, Nakahira, Hiroko, Kanesaka, Takashi, Akasaka, Tomofumi, Takeuchi, Yoji, Higashino, Koji, Uedo, Noriya, Iishi, Hiroyasu, Kanayama, Naoyuki, Hirata, Takero, Kawaguchi, Yoshifumi, Konishi, Koji, and Teshima, Teruki

Published
2017
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17. Assessment of the Diagnostic Performance of Endoscopic Ultrasonography After Conventional Endoscopy for the Evaluation of Esophageal Squamous Cell Carcinoma Invasion Depth

Author

Ishihara, Ryu, primary, Mizusawa, Junki, additional, Kushima, Ryoji, additional, Matsuura, Noriko, additional, Yano, Tomonori, additional, Kataoka, Tomoko, additional, Fukuda, Haruhiko, additional, Hanaoka, Noboru, additional, Yoshio, Toshiyuki, additional, Abe, Seiichiro, additional, Yamamoto, Yoshinobu, additional, Nagata, Shinji, additional, Ono, Hiroyuki, additional, Tamaoki, Masashi, additional, Yoshida, Naohiro, additional, Takizawa, Kohei, additional, and Muto, Manabu, additional

Published
2021
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19. A randomized controlled Phase II/III study comparing endoscopic balloon dilation combined with steroid injection versus radial incision and cutting combined with steroid injection for refractory anastomotic stricture after esophagectomy: Japan Clinical Oncology Group Study JCOG1207

Author

Kataoka, Kozo, Aoyama, Ikuo, Mizusawa, Junki, Eba, Junko, Minashi, Keiko, Yano, Tomonori, Tanaka, Masaki, Hanaoka, Noboru, Katayama, Hiroshi, Takizawa, Kohei, Fukuda, Haruhiko, and Muto, Manabu

Published
2015
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22. ID: 3517386 USEFULNESS OF ENDOSCOPIC ULTRASONOGRAPHY IN DIAGNOSING CANCER INVASION DEPTH OF ESOPHAGEAL SQUAMOUS CELL CARCINOMA: A MULTICENTER, PROSPECTIVE, SINGLE-ARM, CONFIRMATORY TRIAL (JCOG1604)

Author

Ishihara, Ryu, primary, Matsuura, Noriko, additional, Yano, Tomonori, additional, Kushima, Ryoji, additional, Kataoka, Tomoko, additional, Mizusawa, Junki, additional, Fukuda, Haruhiko, additional, Hanaoka, Noboru, additional, Yoshio, Toshiyuki, additional, Abe, Seiichiro, additional, Yamamoto, Yoshinobu, additional, Nagata, Shinji, additional, Ono, Hiroyuki, additional, Tamaoki, Masashi, additional, Yoshida, Naohiro, additional, Takizawa, Kohei, additional, and Muto, Manabu, additional

Published
2021
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23. Transoral surgery for superficial head and neck cancer: National Multi‐Center Survey in Japan

Author

80327361, 40360698, Katada, Chikatoshi, Muto, Manabu, Fujii, Satoshi, Yokoyama, Tetsuji, Yano, Tomonori, Watanabe, Akihito, Iizuka, Toshiro, Yoshinaga, Shigetaka, Tateya, Ichiro, Mitani, Hiroki, Shimizu, Yuichi, Takahashi, Akiko, Kamijo, Tomoyuki, Hanaoka, Noboru, Abe, Makoto, Shiotani, Akihiro, Kano, Koichi, Asada, Yukinori, Matsuhashi, Tamotsu, Umeno, Hirohito, Okami, Kenji, Goda, Kenichi, Hori, Shinichiro, Ono, Yoichiro, Terai, Shuji, Nagami, Yasuaki, Takemura, Kenichi, Kawada, Kenro, Ando, Mizuo, Shimeno, Naoto, Arai, Akihito, Sakamoto, Yasutoshi, Ichinoe, Masaaki, Nemoto, Tetsuo, Fujita, Masahiro, Watanabe, Hidenobu, Shimoda, Tadakazu, Ochiai, Atsushi, Kato, Takakuni, Hayashi, Ryuichi, 80327361, 40360698, Katada, Chikatoshi, Muto, Manabu, Fujii, Satoshi, Yokoyama, Tetsuji, Yano, Tomonori, Watanabe, Akihito, Iizuka, Toshiro, Yoshinaga, Shigetaka, Tateya, Ichiro, Mitani, Hiroki, Shimizu, Yuichi, Takahashi, Akiko, Kamijo, Tomoyuki, Hanaoka, Noboru, Abe, Makoto, Shiotani, Akihiro, Kano, Koichi, Asada, Yukinori, Matsuhashi, Tamotsu, Umeno, Hirohito, Okami, Kenji, Goda, Kenichi, Hori, Shinichiro, Ono, Yoichiro, Terai, Shuji, Nagami, Yasuaki, Takemura, Kenichi, Kawada, Kenro, Ando, Mizuo, Shimeno, Naoto, Arai, Akihito, Sakamoto, Yasutoshi, Ichinoe, Masaaki, Nemoto, Tetsuo, Fujita, Masahiro, Watanabe, Hidenobu, Shimoda, Tadakazu, Ochiai, Atsushi, Kato, Takakuni, and Hayashi, Ryuichi

Abstract

Head and neck cancers, especially in hypopharynx and oropharynx, are often detected at advanced stage with poor prognosis. Narrow band imaging enables detection of superficial cancers and transoral surgery is performed with curative intent. However, pathological evaluation and real-world safety and clinical outcomes have not been clearly understood. The aim of this nationwide multicenter study was to investigate the safety and efficacy of transoral surgery for superficial head and neck cancer. We collected the patients with superficial head and neck squamous cell carcinoma who were treated by transoral surgery from 27 hospitals in Japan. Central pathology review was undertaken on all of the resected specimens. The primary objective was effectiveness of transoral surgery, and the secondary objective was safety including incidence and severity of adverse events. Among the 568 patients, a total of 662 lesions were primarily treated by 575 sessions of transoral surgery. The median tumor diameter was 12 mm (range 1–75) endoscopically. Among the lesions, 57.4% were diagnosed as squamous cell carcinoma in situ. The median procedure time was 48 minutes (range 2–357). Adverse events occurred in 12.7%. Life-threatening complications occurred in 0.5%, but there were no treatment-related deaths. During a median follow-up period of 46.1 months (range 1–113), the 3-year overall survival rate, relapse-free survival rate, cause-specific survival rate, and larynx-preservation survival rate were 88.1%, 84.4%, 99.6%, and 87.5%, respectively. Transoral surgery for superficial head and neck cancer offers effective minimally invasive treatment.

Published
2021

24. Predicting the effects of chemoradiotherapy for squamous cell carcinoma of the esophagus by induction chemotherapy response assessed by positron emission tomography: toward PET-response-guided selection of chemoradiotherapy or esophagectomy

Author

Ishihara, Ryu, Yamamoto, Sachiko, Iishi, Hiroyasu, Nagai, Kengo, Matui, Fumi, Kawada, Natsuko, Ohta, Takashi, Kanzaki, Hiromitsu, Hanafusa, Masao, Hanaoka, Noboru, Takeuchi, Yoji, Higashino, Koji, Uedo, Noriya, Sugimoto, Naotoshi, Kawaguchi, Yoshifumi, Nishiyama, Kinji, Motoori, Masaaki, Yano, Masahiko, and Hosoki, Takuya

Published
2012
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27. Transoral surgery for superficial head and neck cancer: National Multi‐Center Survey in Japan

Author

Katada, Chikatoshi, primary, Muto, Manabu, additional, Fujii, Satoshi, additional, Yokoyama, Tetsuji, additional, Yano, Tomonori, additional, Watanabe, Akihito, additional, Iizuka, Toshiro, additional, Yoshinaga, Shigetaka, additional, Tateya, Ichiro, additional, Mitani, Hiroki, additional, Shimizu, Yuichi, additional, Takahashi, Akiko, additional, Kamijo, Tomoyuki, additional, Hanaoka, Noboru, additional, Abe, Makoto, additional, Shiotani, Akihiro, additional, Kano, Koichi, additional, Asada, Yukinori, additional, Matsuhashi, Tamotsu, additional, Umeno, Hirohito, additional, Okami, Kenji, additional, Goda, Kenichi, additional, Hori, Shinichiro, additional, Ono, Yoichiro, additional, Terai, Shuji, additional, Nagami, Yasuaki, additional, Takemura, Kenichi, additional, Kawada, Kenro, additional, Ando, Mizuo, additional, Shimeno, Naoto, additional, Arai, Akihito, additional, Sakamoto, Yasutoshi, additional, Ichinoe, Masaaki, additional, Nemoto, Tetsuo, additional, Fujita, Masahiro, additional, Watanabe, Hidenobu, additional, Shimoda, Tadakazu, additional, Ochiai, Atsushi, additional, Kato, Takakuni, additional, and Hayashi, Ryuichi, additional

Published
2021
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35. Tu1023 EFFICACY OF POLYGLYCOLIC ACID SHEETING WITH FIBRIN GLUE FOR GASTROINTESTINAL FISTULAS: A MULTICENTER RETROSPECTIVE STUDY

Author

Matsuura, Noriko, primary, Takimoto, Kengo, additional, Tsuji, Yosuke, additional, Takizawa, Kohei, additional, Morita, Yoshinori, additional, Takao, Toshitatsu, additional, Takeuchi, Yoji, additional, Hirasawa, Kingo, additional, Araki, Hiroshi, additional, Yamaguchi, Naoyuki, additional, Iizuka, Toshiro, additional, Hanaoka, Noboru, additional, Kobara, Hideki, additional, and Ono, Hiroyuki, additional

Published
2020
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36. 251 EFFICACY OF POLYGLYCOLIC ACID SHEETING WITH FIBRIN GLUE FOR GASTROINTESTINAL FISTULAS: A MULTICENTER RETROSPECTIVE STUDY

Author

Matsuura, Noriko, primary, Takimoto, Kengo, additional, Tsuji, Yosuke, additional, Takizawa, Kohei, additional, Morita, Yoshinori, additional, Takao, Toshitatsu, additional, Takeuchi, Yoji, additional, Hirasawa, Kingo, additional, Araki, Hiroshi, additional, Yamaguchi, Naoyuki, additional, Iizuka, Toshiro, additional, Hanaoka, Noboru, additional, Kobara, Hideki, additional, and Ono, Hiroyuki, additional

Published
2020
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37. 250 EFFICACY OF POLYGLYCOLIC ACID SHEETING WITH FIBRIN GLUE FOR THE TREATMENT OF PERFORATIONS RELATED TO GASTROINTESTINAL ENDOSCOPIC PROCEDURE: A MULTICENTER RETROSPECTIVE STUDY

Author

Nagami, Yasuaki, primary, Takimoto, Kengo, additional, Tsuji, Yosuke, additional, Takizawa, Kohei, additional, Morita, Yoshinori, additional, Takao, Toshitatsu, additional, Takeuchi, Yoji, additional, Matsuura, Noriko, additional, Hirasawa, Kingo, additional, Araki, Hiroshi, additional, Yamaguchi, Naoyuki, additional, Iizuka, Toshiro, additional, Hanaoka, Noboru, additional, Kobara, Hideki, additional, and Ono, Hiroyuki, additional

Published
2020
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38. Mo1251 NATIONWIDE REGISTRATION SURVEY OF SUPERFICIAL HEAD AND NECK CANCER -THE RELATIONS OF ENDOSCOPIC AND HISTOPATHOLOGICAL FINDINGS-

Author

Goda, Kenichi, primary, Hanaoka, Noboru, additional, Katada, Chikatoshi, additional, Fujii, Satoshi, additional, Yokoyama, Tetsuji, additional, Sakamoto, Yasutoshi, additional, Ishihara, Ryu, additional, Matsuura, Noriko, additional, Kano, Koichi, additional, Monma, Kumiko, additional, Omori, Tai, additional, Muto, Manabu, additional, and Hayashi, Ryuichi, additional

Published
2020
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43. Efficacy of Endoscopic Resection and Selective Chemoradiotherapy for Stage I Esophageal Squamous Cell Carcinoma

Author

80327361, 40360698, Minashi, Keiko, Nihei, Keiji, Mizusawa, Junki, Takizawa, Kohei, Yano, Tomonori, Ezoe, Yasumasa, Tsuchida, Tomohiro, Ono, Hiroyuki, Iizuka, Toshiro, Hanaoka, Noboru, Oda, Ichiro, Morita, Yoshinori, Tajika, Masahiro, Fujiwara, Junko, Yamamoto, Yoshinobu, Katada, Chikatoshi, Hori, Shinichiro, Doyama, Hisashi, Oyama, Tsuneo, Nebiki, Hiroko, Amagai, Kenji, Kubota, Yutaro, Nishimura, Ken, Kobayashi, Nozomu, Suzuki, Takuto, Hirasawa, Kingo, Takeuchi, Toshihisa, Fukuda, Haruhiko, Muto, Manabu, 80327361, 40360698, Minashi, Keiko, Nihei, Keiji, Mizusawa, Junki, Takizawa, Kohei, Yano, Tomonori, Ezoe, Yasumasa, Tsuchida, Tomohiro, Ono, Hiroyuki, Iizuka, Toshiro, Hanaoka, Noboru, Oda, Ichiro, Morita, Yoshinori, Tajika, Masahiro, Fujiwara, Junko, Yamamoto, Yoshinobu, Katada, Chikatoshi, Hori, Shinichiro, Doyama, Hisashi, Oyama, Tsuneo, Nebiki, Hiroko, Amagai, Kenji, Kubota, Yutaro, Nishimura, Ken, Kobayashi, Nozomu, Suzuki, Takuto, Hirasawa, Kingo, Takeuchi, Toshihisa, Fukuda, Haruhiko, and Muto, Manabu

Abstract

Background & Aims: Esophagectomy is the standard treatment for stage I esophageal squamous cell carcinoma (ESCC). We conducted a single-arm prospective study to confirm the efficacy and safety of selective chemoradiotherapy (CRT) based on findings from endoscopic resection (ER). Methods: We performed a prospective study of patients with T1b (SM1-2) N0M0 thoracic ESCC from December 2006 through July 2012; 176 patients underwent ER. Based on the findings from ER, patients received the following: no additional treatment for patients with pT1a tumors with a negative resection margin and no lymphovascular invasion (group A); prophylactic CRT with 41.4 Gy delivered to locoregional lymph nodes for patients with pT1b tumors with a negative resection margin or pT1a tumors with lymphovascular invasion (group B); or definitive CRT (50.4 Gy) with a 9-Gy boost to the primary site for patients with a positive vertical resection margin (group C). Chemotherapy comprised 5-fluorouracil and cisplatin. The primary end point was 3-year overall survival in group B, and the key secondary end point was 3-year overall survival for all patients. If lower limits of 90% confidence intervals for the primary and key secondary end points exceeded the 80% threshold, the efficacy of combined ER and selective CRT was confirmed. Results: Based on the results from pathology analysis, 74, 87, and 15 patients were categorized into groups A, B, and C, respectively. The 3-year overall survival rates were 90.7% for group B (90% confidence interval, 84.0%-94.7%) and 92.6% in all patients (90% confidence interval, 88.5%-95.2%). Conclusions: In a prospective study of patients with T1b (SM1-2) N0M0 thoracic ESCC, we confirmed the efficacy of the combination of ER and selective CRT. Efficacy is comparable to that of surgery, and the combination of ER and selective CRT should be considered as a minimally invasive treatment option. UMIN-Clinical Trials Registry no.: UMIN000000553.

Published
2019

44. Endoscopic appearance of esophageal xanthoma

Author

Hamada, Kenta, additional, Uedo, Noriya, additional, Kubo, Chiaki, additional, Tomita, Yasuhiko, additional, Ishihara, Ryu, additional, Yamasaki, Yasushi, additional, Omori, Masayasu, additional, Arao, Masamichi, additional, Suzuki, Sho, additional, Iwatsubo, Taro, additional, Kato, Minoru, additional, Tonai, Yusuke, additional, Shichijo, Satoki, additional, Matsuura, Noriko, additional, Nakahira, Hiroko, additional, Kanesaka, Takashi, additional, Yamamoto, Sachiko, additional, Akasaka, Tomofumi, additional, Hanaoka, Noboru, additional, Takeuchi, Yoji, additional, Higashino, Koji, additional, Okada, Hiroyuki, additional, and Iishi, Hiroyasu, additional

Published
2019
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45. Differentiation between duodenal neoplasms and non‐neoplasms using magnifying narrow‐band imaging – Do we still need biopsies for duodenal lesions?

Author

Yamasaki, Yasushi, primary, Takeuchi, Yoji, additional, Kanesaka, Takashi, additional, Kanzaki, Hiromitsu, additional, Kato, Minoru, additional, Ohmori, Masayasu, additional, Tonai, Yusuke, additional, Hamada, Kenta, additional, Matsuura, Noriko, additional, Iwatsubo, Taro, additional, Akasaka, Tomofumi, additional, Hanaoka, Noboru, additional, Higashino, Koji, additional, Uedo, Noriya, additional, Ishihara, Ryu, additional, Okada, Hiroyuki, additional, and Iishi, Hiroyasu, additional

Published
2019
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46. Differentiation between duodenal neoplasms and non‐neoplasms using magnifying narrow‐band imaging – Do we still need biopsies for duodenal lesions?

Author

Yamasaki, Yasushi, Takeuchi, Yoji, Kanesaka, Takashi, Kanzaki, Hiromitsu, Kato, Minoru, Ohmori, Masayasu, Tonai, Yusuke, Hamada, Kenta, Matsuura, Noriko, Iwatsubo, Taro, Akasaka, Tomofumi, Hanaoka, Noboru, Higashino, Koji, Uedo, Noriya, Ishihara, Ryu, Okada, Hiroyuki, and Iishi, Hiroyasu

Subjects
DUODENAL tumors, ENDOSCOPIC surgery, BIOPSY, DUODENUM, HISTOLOGY, ENDOSCOPIC ultrasonography
Abstract

Objectives: Endoscopic biopsies for nonampullary duodenal epithelial neoplasms (NADENs) can induce submucosal fibrosis, making endoscopic resection difficult. However, no biopsy‐free method exists to distinguish between NADENs and non‐neoplasms. We developed a diagnostic algorithm for duodenal neoplasms based on magnifying endoscopy findings and evaluated the model's diagnostic ability. Methods: Magnified endoscopic images and duodenal lesion histology were collected consecutively between January 2015 and April 2016. Diagnosticians classified the surface patterns as pit, groove or absent. In cases of nonvisible surface patterns, the vascular pattern was evaluated to determine regularity or irregularity. The correlation between our algorithm (pit‐type or absent with irregular vascular pattern) and the lesion histology were evaluated. Four evaluators, who were blinded to the histology, also classified the endoscopic findings and evaluated the diagnostic performance and interobserver agreement. Results: Endoscopic images of 114 lesions were evaluated (70 NADENs and 44 non‐neoplasms, 31 in the superior and 83 in the descending and horizontal duodenum). Of the NADEN surface patterns, 88% (62/70) were pit‐type, while 79% (35/44) of the non‐neoplasm surface patterns were groove‐type. Our diagnostic algorithm for differentiating NADENs from non‐neoplasms was high (sensitivity 96%, specificity 95%) in the descending and horizontal duodenum. The evaluators' diagnostic performances were also high, and interobserver agreement for the algorithm was good between each diagnostician and evaluator (κ = 0.60–0.76). Conclusion: Diagnostic performance of our algorithm sufficiently enabled eliminating endoscopic biopsies for diagnosing the descending and horizontal duodenum. [ABSTRACT FROM AUTHOR]

Published
2020
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47. Efficacy of vonoprazan in prevention of bleeding from endoscopic submucosal dissection-induced gastric ulcers: a prospective randomized phase II study

Author

Hamada, Kenta, primary, Uedo, Noriya, additional, Tonai, Yusuke, additional, Arao, Masamichi, additional, Suzuki, Sho, additional, Iwatsubo, Taro, additional, Kato, Minoru, additional, Shichijo, Satoki, additional, Yamasaki, Yasushi, additional, Matsuura, Noriko, additional, Nakahira, Hiroko, additional, Kanesaka, Takashi, additional, Yamamoto, Sachiko, additional, Akasaka, Tomofumi, additional, Hanaoka, Noboru, additional, Takeuchi, Yoji, additional, Higashino, Koji, additional, Ishihara, Ryu, additional, Okada, Hiroyuki, additional, Iishi, Hiroyasu, additional, Fukui, Keisuke, additional, and Shimokawa, Toshio, additional

Published
2018
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48. Safety and effectiveness of transoral surgery for superficial head and neck cancer: The National Registration Survey of superficial head and neck cancer in Japan.

Author

Katada, Chikatoshi, primary, Fujii, Satoshi, additional, Yokoyama, Tetsuji, additional, Sakamoto, Yasutoshi, additional, Ichinoe, Masaaki, additional, Okamoto, Tabito, additional, Watanabe, Akihito, additional, Kikuchi, Daisuke, additional, Yoshinaga, Shigetaka, additional, Tsuchida, Tomohiro, additional, Shimizu, Yuichi, additional, Oyama, Tsuneo, additional, Kamijo, Tomoyuki, additional, Hanaoka, Noboru, additional, Kawahara, Yoshiro, additional, Shiotani, Akihiro, additional, Ochiai, Atsushi, additional, Kato, Takakuni, additional, Muto, Manabu, additional, and Hayashi, Ryuichi, additional

Published
2018
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49. Line‐assisted complete closure for a large mucosal defect after colorectal endoscopic submucosal dissection decreased post‐electrocoagulation syndrome

Author

Yamasaki, Yasushi, primary, Takeuchi, Yoji, additional, Iwatsubo, Taro, additional, Kato, Minoru, additional, Hamada, Kenta, additional, Tonai, Yusuke, additional, Matsuura, Noriko, additional, Kanesaka, Takashi, additional, Yamashina, Takeshi, additional, Arao, Masamichi, additional, Suzuki, Sho, additional, Shichijo, Satoki, additional, Nakahira, Hiroko, additional, Akasaka, Tomofumi, additional, Hanaoka, Noboru, additional, Higashino, Koji, additional, Uedo, Noriya, additional, Ishihara, Ryu, additional, Okada, Hiroyuki, additional, and Iishi, Hiroyasu, additional

Published
2018
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50. Sporadic Minute Pharyngeal Xanthomas Detected Incidentally During Esophagogastroduodenoscopy: A Case Series

Author

Hamada, Kenta, primary, Takeuchi, Yoji, additional, Kubo, Chiaki, additional, Tomita, Yasuhiko, additional, Omori, Masayasu, additional, Uedo, Noriya, additional, Ishihara, Ryu, additional, Yamasaki, Yasushi, additional, Yamamoto, Sachiko, additional, Akasaka, Tomofumi, additional, Hanaoka, Noboru, additional, Higashino, Koji, additional, Okada, Hiroyuki, additional, and Iishi, Hiroyasu, additional

Published
2018
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