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431 results on '"Yamaguchi, Naoyuki"'

5. An Analysis of Delayed Bleeding in Cases of Colorectal Endoscopic Submucosal Dissection Due to Types of Direct Oral Anticoagulants in Japan

Author

Yoshida, Naohisa, Hayashi, Yoshikazu, Togo, Daichi, Oka, Shiro, Takada, Kazunori, Fukunaga, Shusei, Morita, Yoshinori, Hayashi, Takemasa, Kozuka, Kazuhiro, Tsuji, Yosuke, Murakami, Takashi, Yamamura, Takeshi, Komeda, Yoriaki, Takeuchi, Yoji, Shinmura, Kensuke, Fukuda, Hiroko, Yoshii, Shinji, Ono, Shoko, Katsuki, Shinichi, Kawashima, Kazumasa, Nemoto, Daiki, Yamamoto, Hiroyuki, Saito, Yutaka, Tamai, Naoto, Iwao, Aya, Itoi, Yuki, Tsuji, Shigetsugu, Inagaki, Yoshikazu, Inada, Yutaka, Soga, Koichi, Hasegawa, Daisuke, Murakami, Takaaki, Yoriki, Hiroyuki, Fukumoto, Kohei, Motoyoshi, Takayuki, Nakatani, Yasuki, Sano, Yasushi, Iguchi, Mikitaka, Fujii, Shigehiko, Ban, Hiromitsu, Harada, Keita, Okamoto, Koichi, Nishiyama, Hitoshi, Sasaki, Fumisato, Mizukami, Kazujhiro, Shono, Takashi, Shimoda, Ryo, Miike, Tadashi, and Yamaguchi, Naoyuki

Published
2024
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7. 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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10. Impact of low pharyngeal/esophageal pressure associated with sarcopenia on postendoscopic submucosal dissection pneumonia in patients with superficial esophageal cancer.

Author

Taniguchi, Yasuhiro, Ono, Junki, Haraguchi, Masafumi, Tabuchi, Maiko, Hisamatsu, Noriko, Takahata, Hideaki, Kondo, Hisayoshi, Yamaguchi, Naoyuki, Kumai, Yoshihiko, and Nakao, Kazuhiko

Subjects
SARCOPENIA, ESOPHAGEAL cancer, RECEIVER operating characteristic curves, ETIOLOGY of pneumonia, ESOPHAGOGASTRIC junction, OLDER patients
Abstract

Objectives: The aging population, including patients with superficial esophageal cancer, encounters critical dysphagia‐ and postoperative pneumonia‐related issues. Although endoscopic submucosal dissection (ESD) provides advantages over other modalities, older patients are at higher risk of postoperative pneumonia. Furthermore, the etiologies of pneumonia are complex and include patient‐ (such as sarcopenia) and treatment‐ (including ESD) related factors. Therefore, this study evaluated swallowing function in patients with superficial esophageal cancer and identified post‐ESD pneumonia‐associated factors. Methods: Comprehensive swallowing function and sarcopenia were evaluated in patients pre‐ESD and 2 months post‐ESD using high‐resolution manometry and several swallowing studies by multiple experts. The effects of mucosal resection and sarcopenia on swallowing function changes post‐ESD, the relationship between preoperative swallowing function and sarcopenia, and the factors influencing postoperative pneumonia were investigated. Results: Twenty patients were included in the study. Patients with preoperative sarcopenia had significantly lower pharyngeal/upper esophageal sphincter and tongue pressures than those without sarcopenia. However, ESD did not worsen pharyngeal or upper esophageal pressure. Post‐ESD pneumonia incidence tended to be higher in patients with sarcopenia than in those without sarcopenia. The lower upper esophageal sphincter‐integrated relaxation pressure (UES‐IRP) was a significant factor in pneumonia development. Furthermore, the receiver operating characteristic curve for UES‐IRP in pneumonia yielded an area under the curve of 0.82. Conclusions: Sarcopenia is associated with preoperative dysphagia, which increases post‐ESD pneumonia risk. Therefore, postoperative pneumonia incidence is expected to increase with an aging population, making preoperative sarcopenia and swallowing function evaluation crucial. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Docking Proteins Upregulate IL-1β Expression in Lower Esophageal Sphincter Muscle in Esophageal Achalasia.

Author

Kanda, Tsutomu, Saiki, Karen, Kurumi, Hiroki, Yoshida, Akira, Ikebuchi, Yuichiro, Sakaguchi, Takuki, Urabe, Shigetoshi, Minami, Hitomi, Yamaguchi, Naoyuki, Nakao, Kazuhiko, Inoue, Haruhiro, and Isomoto, Hajime

Subjects
ESOPHAGEAL achalasia, ESOPHAGOGASTRIC junction, GENE expression, SIGNAL recognition particle receptor, SPHINCTERS
Abstract

Background/Objectives: Esophageal achalasia is an archetypal esophageal motility disorder characterized by abnormal peristalsis of the esophageal body and impaired lower esophageal sphincter (LES) relaxation. Methods: In this study, the mRNA expression of docking proteins 1 and 2 (DOK1 and DOK2, respectively) were analyzed and the mechanisms underlying achalasia onset were investigated. Results: DOK1 and DOK2 mRNA levels significantly increased in the LES of patients with achalasia. Moreover, significant correlations were observed between IL-1β and DOK1, IL-1β and DOK2, ATG16L1 and DOK1, and HSV1-miR-H1-3p and DOK2 expression levels. However, a correlation between ATG16L1 and DOK2 or between HSV-miR-H1-3p and DOK1 expression was not observed. In addition, a positive correlation was observed between patient age and DOK1 expression. Microarray analysis revealed a significant decrease in the expression of hsa-miR-377-3p and miR-376a-3p in the LES muscle of patients with achalasia. Conclusions: These miRNAs possessed sequences targeting DOK. The upregulation of DOK1 and DOK2 expression induces IL-1β expression in the LES of achalasia patients, which may contribute to the development of esophageal motility disorder. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Partial Stent-in-Stent Method with an Uncovered Self-Expandable Metallic Stent for Unresectable Malignant Hilar Bile Duct Obstruction

Author

Shimosaka, Takuya, primary, Takeda, Yohei, additional, Yamashita, Taro, additional, Seki, Yuta, additional, Kawahara, Shiho, additional, Hirai, Takayuki, additional, Suto, Noriyuki, additional, Sakamoto, Yuri, additional, Hamamoto, Wataru, additional, Koda, Hiroki, additional, Onoyama, Takumi, additional, Matsumoto, Kazuya, additional, Yashima, Kazuo, additional, Isomoto, Hajime, additional, and Yamaguchi, Naoyuki, additional

Published
2024
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15. Impact of Low Pharyngeal/Esophageal Pressure Associated with Sarcopenia on Post‐Endoscopic Submucosal Dissection Pneumonia in Patients with Superficial Esophageal Cancer

Author

Taniguchi, Yasuhiro, primary, Ono, Junki, additional, Haraguchi, Masafumi, additional, Tabuchi, Maiko, additional, Hisamatsu, Noriko, additional, Takahata, Hideaki, additional, Kondo, Hisayoshi, additional, Yamaguchi, Naoyuki, additional, Kumai, Yoshihiko, additional, and Nakao, Kazuhiko, additional

Published
2023
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17. Characteristics and Risk Factors of Delayed Perforation in Endoscopic Submucosal Dissection for Early Gastric Cancer.

Author

Akashi, Taro, Yamaguchi, Naoyuki, Shiota, Junya, Tabuchi, Maiko, Kitayama, Moto, Hashiguchi, Keiichi, Matsushima, Kayoko, Akazawa, Yuko, and Nakao, Kazuhiko

Subjects
*STOMACH cancer, *PREOPERATIVE risk factors, *INTESTINAL perforation, *GASTRIC bypass, *SURGICAL emergencies, *DISSECTION, *ABDOMINAL pain, *ENDOSCOPIC ultrasonography
Abstract

(1) Background: Delayed perforation after gastric endoscopic submucosal dissection (ESD) for early gastric cancer is a relatively uncommon and serious complication that sometimes requires emergency surgery. This study aimed to determine the clinicopathological features, risk factors, and appropriate management strategies for delayed perforation. (2) Methods: This study included 735 patients with 791 lesions who underwent ESD for early gastric cancer at a single institution between July 2009 and June 2019. We retrospectively compared the clinical features of patients with and without delayed perforations. (3) Results: The incidence of delayed perforations was 0.91%. The identified risk factors included a postoperative stomach condition and histopathological ulceration. A comparison between delayed and intraoperative perforations revealed a postoperative stomach condition as a characteristic risk factor for delayed perforation. Patients with delayed perforation who avoided emergency surgery tended to exhibit an earlier onset of symptoms such as abdominal pain and fever. No peritoneal seeding following delayed perforation was observed for any patient. (4) Conclusions: A postoperative stomach condition and histopathological ulceration were risk factors for delayed perforation. Delayed perforation is a significant complication that requires careful monitoring after gastric ESD for early gastric cancer, particularly in patients with postoperative gastric conditions. [ABSTRACT FROM AUTHOR]

Published
2024
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22. An Analysis of Delayed Bleeding in Cases of Colorectal Endoscopic Submucosal Dissection Due to Types of Direct Oral Anticoagulants in Japan

Author

Yoshida, Naohisa, primary, Hayashi, Yoshikazu, additional, Togo, Daichi, additional, Oka, Shiro, additional, Takada, Kazunori, additional, Fukunaga, Shusei, additional, Morita, Yoshinori, additional, Hayashi, Takemasa, additional, Kozuka, Kazuhiro, additional, Tsuji, Yosuke, additional, Murakami, Takashi, additional, Yamamura, Takeshi, additional, Komeda, Yoriaki, additional, Takeuchi, Yoji, additional, Shinmura, Kensuke, additional, Fukuda, Hiroko, additional, Yoshii, Shinji, additional, Ono, Shoko, additional, Katsuki, Shinichi, additional, Kawashima, Kazumasa, additional, Nemoto, Daiki, additional, Yamamoto, Hiroyuki, additional, Saito, Yutaka, additional, Tamai, Naoto, additional, Iwao, Aya, additional, Itoi, Yuki, additional, Tsuji, Shigetsugu, additional, Inagaki, Yoshikazu, additional, Inada, Yutaka, additional, Soga, Koichi, additional, Hasegawa, Daisuke, additional, Murakami, Takaaki, additional, Yoriki, Hiroyuki, additional, Fukumoto, Kohei, additional, Motoyoshi, Takayuki, additional, Nakatani, Yasuki, additional, Sano, Yasushi, additional, Iguchi, Mikitaka, additional, Fujii, Shigehiko, additional, Ban, Hiromitsu, additional, Harada, Keita, additional, Okamoto, Koichi, additional, Nishiyama, Hitoshi, additional, Sasaki, Fumisato, additional, Mizukami, Kazujhiro, additional, Shono, Takashi, additional, Shimoda, Ryo, additional, Miike, Tadashi, additional, and Yamaguchi, Naoyuki, additional

Published
2023
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23. ATG16L1 and ATG12 Gene Polymorphisms Are Involved in the Progression of Atrophic Gastritis

Author

Yamaguchi, Naoyuki, primary, Sakaguchi, Takuki, additional, Isomoto, Hajime, additional, Inamine, Tatsuo, additional, Ueda, Haruka, additional, Fukuda, Daisuke, additional, Ohnita, Ken, additional, Kanda, Tsutomu, additional, Kurumi, Hiroki, additional, Matsushima, Kayoko, additional, Hirayama, Tatsuro, additional, Yashima, Kazuo, additional, and Tsukamoto, Kazuhiro, additional

Published
2023
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25. Expression of coproporphyrinogen oxidase is associated with detection of upper gastrointestinal carcinomas by 5-aminolevulinic acid-mediated photodynamic diagnosis

Author

Ogihara, Kumi, Isomoto, Hajime, Kurumi, Hiroki, Kanda, Tsutomu, Hashisako, Mikiko, Tabata, Kazuhiro, Ishii, Hiroyuki, Ohnita, Ken, Yamaguchi, Naoyuki, Akazawa, Yuko, Matsushima, Kayoko, Takeshima, Fuminao, Kunizaki, Masaki, Hidaka, Shigekazu, Nanashima, Atsushi, Fukuoka, Junya, Nagayasu, Takeshi, and Nakao, Kazuhiko

Published
2017
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26. Pancreatic Juice Cytology Evaluations Using Synthetic Secretin and Serial Pancreatic Juice Aspiration Cytological Examination for the Diagnosis of Pancreatic Ductal Adenocarcinoma

Author

Takeda, Yohei, primary, Matsumoto, Kazuya, additional, Onoyama, Takumi, additional, Yamashita, Taro, additional, Koda, Hiroki, additional, Hamamoto, Wataru, additional, Sakamoto, Yuri, additional, Shimosaka, Takuya, additional, Kawahara, Shiho, additional, Seki, Yuta, additional, Kurumi, Hiroki, additional, Horie, Yasushi, additional, Isomoto, Hajime, additional, and Yamaguchi, Naoyuki, additional

Published
2023
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27. Comparison between Target Sample Check Illuminator and White Light Observation in Discriminating the Presence of Target Specimen for Endoscopic Ultrasound-Guided Fine Needle Aspiration Sample

Author

Koda, Hiroki, primary, Matsumoto, Kazuya, additional, Kawata, Soichiro, additional, Takeda, Yohei, additional, Onoyama, Takumi, additional, Seki, Yuta, additional, Sakamoto, Yuri, additional, Shimosaka, Takuya, additional, Hamamoto, Wataru, additional, Yamashita, Taro, additional, Kurumi, Hiroki, additional, Yamaguchi, Naoyuki, additional, Noma, Hisashi, additional, and Isomoto, Hajime, additional

Published
2023
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30. ‘Underwater endoscopic mucosal resection with submucosal injection and marking’ for superficial non-ampullary duodenal epithelial tumors to achieve R0 resection: a single-center case series

Author

Hashiguchi, Keiichi, primary, Yamaguchi, Naoyuki, additional, Shiota, Junya, additional, Akashi, Taro, additional, Ogihara, Kumi, additional, Tabuchi, Maiko, additional, Kitayama, Moto, additional, Matsushima, Kayoko, additional, Akazawa, Yuko, additional, Ohnita, Ken, additional, and Nakao, Kazuhiko, additional

Published
2023
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31. Multi‐institutional questionnaire on treatment strategies for superficial entire circumferential esophageal squamous cell carcinoma

Author

Kadota, Tomohiro, primary, Ishihara, Ryu, additional, Hatta, Waku, additional, Yoshida, Masao, additional, Kanzaki, Hiromitsu, additional, Kikuchi, Daisuke, additional, Ono, Yoichiro, additional, Abe, Seiichiro, additional, Yamamoto, Yoshinobu, additional, Yoshio, Toshiyuki, additional, Urabe, Yuji, additional, Yamaguchi, Naoyuki, additional, Nagami, Yasuaki, additional, Iizuka, Toshiro, additional, Takahashi, Hiroaki, additional, Oyama, Tsuneo, additional, and Yano, Tomonori, additional

Published
2023
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32. The Characteristics and Prognosis of Alpha-Fetoprotein and Des-Gamma-Carboxy Prothrombin Double-Negative Hepatocellular Carcinoma at Baseline in Higher BCLC Stages

Author

Nagahara, Takakazu, primary, Sugihara, Takaaki, additional, Kihara, Takuya, additional, Ikeda, Suguru, additional, Hoshino, Yoshiki, additional, Matsuki, Yukako, additional, Sakaguchi, Takuki, additional, Kurumi, Hiroki, additional, Onoyama, Takumi, additional, Takata, Tomoaki, additional, Matono, Tomomitsu, additional, Yamaguchi, Naoyuki, additional, and Isomoto, Hajime, additional

Published
2023
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33. A Novel Monochromatic Light to Detect Target Specimens Within Endoscopic Ultrasonography-guided Fine-needle Aspiration Biopsy Samples

Author

MATSUMOTO, KAZUYA, primary, UEKI, MASARU, additional, ICHINO, KUNIO, additional, TSUKA, TAKESHI, additional, UEHARA, KAZUTAKE, additional, TAKEDA, YOHEI, additional, ONOYAMA, TAKUMI, additional, KAWATA, SOICHIRO, additional, KURUMI, HIROKI, additional, KODA, HIROKI, additional, YAMASHITA, TARO, additional, OKAMOTO, YOSHIHARU, additional, YAMAGUCHI, NAOYUKI, additional, SASAKI, SHIGEO, additional, and ISOMOTO, HAJIME, additional

Published
2023
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36. How to prevent contamination with Candida albicans during the fabrication of transplantable oral mucosal epithelial cell sheets

Author

Takagi, Ryo, Kobayashi, Shinichiro, Yamato, Masayuki, Owaki, Toshiyuki, Kasai, Yoshiyuki, Hosoi, Takahiro, Sakai, Yusuke, Kanetaka, Kengo, Minamizato, Tokutaro, Minematsu, Asuka, Kondo, Makoto, Kanai, Nobuo, Yamaguchi, Naoyuki, Nagai, Kazuhiro, Miyazaki, Yasushi, Takeda, Naoya, Fukai, Fumio, Asahina, Izumi, Miyazaki, Taiga, Kohno, Shigeru, Yamamoto, Masakazu, Nakao, Kazuhiko, Eguchi, Susumu, and Okano, Teruo

Published
2015
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37. In vivo fluorescence navigation of gastric and upper gastrointestinal tumors by 5-aminolevulinic acid mediated photodynamic diagnosis with a laser-equipped video image endoscope

Author

Isomoto, Hajime, Nanashima, Atsushi, Senoo, Takemasa, Ogiwara, Kumi, Hashisako, Mikiko, Ohnita, Ken, Yamaguchi, Naoyuki, Kunizaki, Masaki, Hidaka, Shigekazu, Fukuda, Hiroko, Ishii, Hiroyuki, Matsushima, Kayoko, Minami, Hitomi, Akazawa, Yuko, Takeshima, Fuminao, Fukuoka, Junya, Nagayasu, Takeshi, and Nakao, Kazuhiko

Published
2015
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40. Endoscopic grading system for predicting anastomotic complications after esophagectomy: a prospective cohort study. (Endoscopic grading system after esophagectomy)

Author

Kobayashi, Shinichiro, primary, Kanetaka, Kengo, additional, Yoneda, Akira, additional, Yamaguchi, Naoyuki, additional, Kobayashi, Kazuma, additional, Nagata, Yasuhiro, additional, Maruya, Yasuhiro, additional, Yamaguchi, Shun, additional, Hidaka, Masaaki, additional, and Eguchi, Susumu, additional

Published
2022
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42. Comprehensive Prospective Analysis of the Factors Contributing to Aspiration Pneumonia Following Endoscopic Submucosal Dissection in Patients with Early Gastric Neoplasms

Author

Togo, masaaki, Akazawa, Yuko, Akashi, Taro, Yamashita, Rika, Yoshitomi, Izumi, Ohba, Kazuo, Hashimoto, Satsuki, Iwashita, Hiroko, Kurogi, Tadafumi, Osada, Yukiko, Wada, Noriko, Imamura, Yoshifumi, Hashiguchi, Keiichi, Yamaguchi, Naoyuki, Kondo, Hisayoshi, and Nakao, Kazuhiko

Subjects
stomatognathic diseases, oral bacteria, sedation, respiratory diseasese, pneumonia, endoscopy, respiratory tract diseases
Abstract

ndoscopic submucosal dissection (ESD) has become the first-line treatment for early gastric neoplasms; however, a subset of patients treated by this method develop aspiration pneumonia. We conducted a comprehensive prospective analysis of the factors contributing to post-ESD aspiration pneumonia in early gastric neoplasms in this study, with special focus on whether pre-treatment oral care can prevent aspiration pneumonia. Sixty-one patients who underwent ESD for gastric neoplasms were randomly assigned to the oral care or control groups. ESD was performed under deep sedation. Of 60 patients whose data were available for analysis, 5 (8.3%) experienced pneumonia confirmed either by chest radiography or computed tomography. Although no difference in the rate of pneumonia was found between the control and oral care groups, the post-oral care bacteria count was significantly higher in the saliva of patients who developed pneumonia compared to those without pneumonia. In addition, the presence of vascular brain diseases and the dose of meperidine were also significantly associated with the occurrence of pneumonia. These results suggest that the number of oral bacteria as well as pre-existing vascular brain diseases and high-dose narcotics can affect the incidence of post-ESD pneumonia.

Published
2020

45. High serum concentrations of growth differentiation factor-15 in male Crohn’s disease patients with low skeletal muscle index

Author

Yamamoto, Hiroyuki, primary, Takeshima, Fuminao, additional, Haraguchi, Masafumi, additional, Matsushima, Kayoko, additional, Kitayama, Moto, additional, Akazawa, Yuko, additional, Ogihara, Kumi, additional, Tabuchi, Maiko, additional, Hashiguchi, Keiichi, additional, Yamaguchi, Naoyuki, additional, and Nakao, Kazuhiko, additional

Published
2021
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