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138 results on '"Kuroyanagi, Hiroya"'

2. Oncologic benefit of adjuvant chemotherapy for locally advanced rectal cancer after neoadjuvant chemoradiotherapy and curative surgery with selective lateral pelvic lymph node dissection: An international retrospective cohort study

Author

Fukui, Yudai, Hida, Koya, Hoshino, Nobuaki, Song, Seung Ho, Park, Soo Yeun, Choi, Gyu-Seog, Maeda, Yusuke, Matoba, Shuichiro, Kuroyanagi, Hiroya, Bae, Sung Uk, Jeong, Woon Kyung, Baek, Seong Kyu, and Sakai, Yoshiharu

Published
2022
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3. Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Large intestine.

Author

Kuroyanagi, Hiroya, Hida, Koya, Ishii, Yoshiyuki, Yamamoto, Seiichiro, Hasegawa, Suguru, Takahashi, Kenichi, Saida, Yoshihisa, Inomata, Masafumi, Nakamura, Masafumi, and Sakai, Yoshiharu

Subjects
*SURGICAL complications, *MINIMALLY invasive procedures, *LAPAROSCOPIC surgery, *OPERATIVE surgery, *SURGICAL site infections, *RECTAL surgery, *APPENDECTOMY, *APPENDICITIS, *DIVERTICULITIS
Abstract

This article provides practice guidelines for qualified surgeons on the use of laparoscopic surgery for various conditions related to colorectal cancer. The guidelines recommend laparoscopic surgery for colon cancer due to its comparable long-term results and superior short-term outcomes compared to open surgery. However, the use of laparoscopic surgery for transverse colon and rectal cancer is still controversial. The guidelines also discuss the applicability of laparoscopic surgery based on disease stage, comorbidities, and age. Overall, laparoscopic surgery is considered safe and effective, but individual patient factors should be carefully considered. The article also mentions the use of laparoscopic surgery for acute appendicitis, diverticula of the large intestine, ulcerative colitis, Crohn's disease, elderly patients, obese patients, and Stage IV colorectal cancer, providing insights into the short-term and long-term outcomes of laparoscopic surgery for these conditions. The article concludes that further research is needed, particularly in the area of robotic surgery for colorectal cancer. [Extracted from the article]

Published
2024
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20. Influence of previous abdominal surgery on surgical outcomes between laparoscopic and open surgery in elderly patients with colorectal cancer: subanalysis of a large multicenter study in Japan

Author

Yamamoto, Seiichiro, Hinoi, Takao, Niitsu, Hiroaki, Okajima, Masazumi, Ide, Yoshihito, Murata, Kohei, Akamoto, Shintaro, Kanazawa, Akiyoshi, Nakanishi, Masayoshi, Naitoh, Takeshi, Kanehira, Eiji, Shimamura, Tsukasa, Suzuka, Ichio, Fukunaga, Yosuke, Yamaguchi, Takashi, Watanabe, Masahiko, Shiozawa, Kunihisa, Bando, Hiroyuki, Yamamoto, Daisuke, Kitano, Seigo, Inomata, Masafumi, Akagi, Tomonori, Okuda, Junji, Tanaka, Keitaro, Yasui, Masayoshi, Hirakawa, Kosei, Maeda, Kiyoshi, Hasegawa, Junichi, Nishimura, Junichi, Kuroyanagi, Hiroya, Horie, Hisanaga, Naito, Masaki, Ueki, Takashi, Sakai, Yoshiharu, Hida, Koya, Kinjo, Yousuke, Kokuba, Yukihito, Hamada, Madoka, Saito, Norio, Ito, Masaaki, Yatsuoka, Toshimasa, Tashiro, Jo, Yamaguchi, Shigeki, Furuhata, Tomohisa, Okita, Kenji, Kubo, Yoshiro, Saito, Shuji, Kinugasa, Yusuke, Konishi, Fumio, Sakamoto, Kazuhiro, Goto, Michitoshi, Tanaka, Junichi, Endo, Shungo, Miyajima, Nobuyoshi, Suda, Tadashi, Saida, Yoshihisa, Enomoto, Toshiyuki, Munakata, Yasuhiro, Hayashi, Ken, Tagami, Souichi, Takii, Yasumasa, Maruyama, Satoshi, Ichihara, Takao, Idani, Hitoshi, Kurose, Kohei, Miyake, Yasuhiro, Hazama, Shoichi, Fujii, Shoichi, Yamagishi, Shigeru, Watanabe, Kazuteru, Sugihara, Kenichi, Fujita, Shin, and for the Japan Society of Laparoscopic Colorectal Surgery

Published
2017
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22. Universal meta-competencies of operative performances: a literature review and qualitative synthesis

Author

Igaki, Takahiro, primary, Takenaka, Shin, additional, Watanabe, Yusuke, additional, Kojima, Shigehiro, additional, Nakajima, Kei, additional, Takabe, Yuya, additional, Kitaguchi, Daichi, additional, Takeshita, Nobuyoshi, additional, Inomata, Masafumi, additional, Kuroyanagi, Hiroya, additional, Kinugasa, Yusuke, additional, and Ito, Masaaki, additional

Published
2022
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23. Non-operative management after chemoradiotherapy plus consolidation or sandwich (induction with bevacizumab and consolidation) chemotherapy in patients with locally advanced rectal cancer: a multicentre, randomised phase II trial (NOMINATE trial)

Author

Akiyoshi, Takashi, primary, Shinozaki, Eiji, additional, Taguchi, Senzo, additional, Chino, Akiko, additional, Hiratsuka, Makiko, additional, Tominaga, Tetsuro, additional, Nonaka, Takashi, additional, Toda, Shigeo, additional, Matoba, Shuichiro, additional, Matsui, Shimpei, additional, Okabayashi, Koji, additional, Mukai, Toshiki, additional, Hiyoshi, Yukiharu, additional, Yamaguchi, Tomohiro, additional, Nagasaki, Toshiya, additional, Yamaguchi, Kensei, additional, Ueno, Masashi, additional, Kuroyanagi, Hiroya, additional, Fukunaga, Yosuke, additional, Ishizuka, Naoki, additional, and Konishi, Tsuyoshi, additional

Published
2022
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28. Clinical impact of Endoscopic Surgical Skill Qualification System (ESSQS) by Japan Society for Endoscopic Surgery (JSES) for laparoscopic distal gastrectomy and low anterior resection based on the National Clinical Database (NCD) registry

Author

Akagi, Tomonori, primary, Endo, Hideki, additional, Inomata, Masafumi, additional, Yamamoto, Hiroyuki, additional, Mori, Toshiyuki, additional, Kojima, Kazuyuki, additional, Kuroyanagi, Hiroya, additional, Sakai, Yoshiharu, additional, Nakajima, Kentaro, additional, Shiroshita, Hidefumi, additional, Etoh, Tsuyoshi, additional, Saida, Yoshihisa, additional, Yamamoto, Seiichiro, additional, Hasegawa, Hirotoshi, additional, Ueno, Hideki, additional, Kakeji, Yoshihiro, additional, Miyata, Hiroaki, additional, Kitagawa, Yuko, additional, and Watanabe, Masahiko, additional

Published
2020
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30. Lateral Nodal Features on Restaging Magnetic Resonance Imaging Associated With Lateral Local Recurrence in Low Rectal Cancer After Neoadjuvant Chemoradiotherapy or Radiotherapy

Author

Ogura, Atsushi, Konishi, Tsuyoshi, Beets, Geerard L., Cunningham, Chris, Garcia-Aguilar, Julio, Iversen, Henrik, Toda, Shigeo, Lee, In Kyu, Lee, Hong Xiang, Uehara, Keisuke, Lee, Peter, Putter, Hein, van de Velde, Cornelis J. H., Rutten, Harm J. T., Tuynman, Jurriaan B., Kusters, Miranda, Hompes, Roel, Akiyoshi, Takashi, Schaap, Dennis, Nieuwenhuijzen, Grard A., Martling, Anna, van der Valk, Maxime J. M., Meershoek-Klein-Kranenbarg, Elma, Blazic, Ivana M., Gollub, Marc J., Aiba, Toshisada, Aalbers, Arend G. J., van der Sande, Marit E., Beets-Tan, Regina H., Maas, Monique, Jozwiak, Katarzyna, Betts, Margaret, Moore, James, Thomas, Michelle, Sammour, Tarik, Wells, Tim, Solomon, Michael J., Brown, Kilian G., Won, Daeyoun David, Kim, Min Ki, Oh, Soon Nam, Choi, Moon Hyung, Kuroyanagi, Hiroya, Hanaoka, Yutaka, Tomizawa, Kenji, Surgery, AGEM - Re-generation and cancer of the digestive system, CCA - Imaging and biomarkers, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, and Academic Medical Center

Subjects
Male, INVOLVEMENT, Internationality, medicine.medical_treatment, 030230 surgery, Cohort Studies, 0302 clinical medicine, DISSECTION, Original Investigation, medicine.diagnostic_test, Hazard ratio, Chemoradiotherapy, Middle Aged, Prognosis, Magnetic Resonance Imaging, Total mesorectal excision, Neoadjuvant Therapy, Dissection, 030220 oncology & carcinogenesis, SURVIVAL, Female, Radiology, medicine.medical_specialty, Risk Assessment, Disease-Free Survival, Statistics, Nonparametric, 03 medical and health sciences, medicine, Humans, Neoplasm Invasiveness, Survival analysis, Aged, Neoplasm Staging, Proportional Hazards Models, Retrospective Studies, JAPAN, Rectal Neoplasms, business.industry, TOTAL MESORECTAL EXCISION, Magnetic resonance imaging, Retrospective cohort study, Survival Analysis, Radiation therapy, Radiotherapy, Adjuvant, Surgery, Lymph Nodes, Neoplasm Recurrence, Local, business, PREOPERATIVE CHEMORADIOTHERAPY
Abstract

Key PointsQuestionWhat is the role of restaging magnetic resonance imaging (MRI) after chemoradiotherapy or radiotherapy, and which specific patients might benefit from a lateral lymph node dissection (LLND)? FindingsIn this multicenter pooled cohort study including 741 patients with low rectal cancer after chemoradiotherapy or radiotherapy, shrinkage of lateral nodes from a short-axis node size of 7 mm or greater on primary MRI to a short-axis node size of 4 mm or less on restaging MRI abolished the risk of lateral local recurrence (LLR). However, in persistently enlarged nodes (greater than 4 mm) in the internal iliac compartment on restaging MRI, the risk of LLR was high, and an LLND lowered this risk significantly. MeaningPersistently enlarged nodes in the internal iliac compartment indicate a high risk of LLR, and an LLND should be seriously considered in these patients.This cohort study investigates the factors on primary and restaging magnetic resonance imaging that are associated with lateral local recurrence in low rectal cancer after chemoradiotherapy or radiotherapy and to formulate specific guidelines on which patients might benefit from a lateral lymph node dissection.ImportancePreviously, it was shown in patients with low rectal cancer that a short-axis (SA) lateral node size of 7 mm or greater on primary magnetic resonance imaging (MRI) resulted in a high lateral local recurrence (LLR) rate after chemoradiotherapy or radiotherapy ([C]RT) with total mesorectal excision (TME) and that this risk was lowered by a lateral lymph node dissection (LLND). The role of restaging MRI after (C)RT with regard to LLR risk and which specific patients might benefit from an LLND is not fully understood. ObjectiveTo determine the factors on primary and restaging MRI that are associated with LLR in low rectal cancer after (C)RT and to formulate specific guidelines on which patients might benefit from an LLND. Design, Setting, and ParticipantsIn this retrospective, multicenter, pooled cohort study, patients who underwent surgery for cT3 or cT4 low rectal cancer with a curative intent from 12 centers in 7 countries from January 2009 to December 2013 were included. All patients' MRIs were rereviewed according to a standardized protocol, with specific attention to lateral nodal features. The original cohort included 1216 patients. For this study, patients who underwent (C)RT and had a restaging MRI were selected, leaving 741 for analyses across 10 institutions, including 651 who underwent (C)RT with TME and 90 who underwent (C)RT with TME and LLND. Main Outcomes and MeasuresThe main purpose was to identify the factors on primary and restaging MRI associated with LLR after (C)RT with TME. Whether high-risk patients might benefit in terms of LLR reduction from an LLND was also studied. ResultsOf the 741 included patients, 480 (64.8%) were male, and the mean (SD) age was 60.4 (12.0) years. An SA lateral node size of 7 mm or greater on primary MRI resulted in a 5-year LLR rate of 17.9% after (C)RT with TME. At 3 years, there were no LLRs in 28 patients (29.2%) with lateral nodes that were 4 mm or less on restaging MRI. Nodes that were 7 mm or greater on primary MRI and greater than 4 mm on restaging MRI in the internal iliac compartment resulted in a 5-year LLR rate of 52.3%, significantly higher compared with nodes in the obturator compartment of that size (9.5%; hazard ratio, 5.8; 95% CI, 1.6-21.3; P=.003). Compared with (C)RT with TME alone, treatment with (C)RT with TME and LLND in these unresponsive internal nodes resulted in a significantly lower LLR rate of 8.7% (hazard ratio, 6.2; 95% CI, 1.4-28.5; P=.007). Conclusions and RelevanceRestaging MRI is important in clinical decision making in lateral nodal disease. In patients with shrinkage of lateral nodes from an SA node size of 7 mm or greater on primary MRI to an SA node size of 4 mm or less on restaging MRI, which occurs in about 30% of cases, LLND can be avoided. However, persistently enlarged nodes in the internal iliac compartment indicate an extremely high risk of LLR, and an LLND lowered LLR in these cases.

Published
2019

31. Additional file 1: Figure S1. of Changes in CT morphology can be an independent response marker for patients receiving regorafenib for colorectal liver metastases: retrospective pilot study

Author

Ozaki, Yukinori, Shindoh, Junichi, Gonoi, Wataru, Nishioka, Yujiro, Kondoh, Chihiro, Tanabe, Yuko, Matoba, Shuichiro, Kuroyanagi, Hiroya, Masaji Hashimoto, and Takano, Toshimi

Abstract

CT morphologic criteria and tumor thickness at the tumor-liver interface. (with permission of Springer) [8] a Group 1 CT morphology. b Group 2 CT morphology. c. Group 3 CT morphology. d Typical tumor thickness at the tumor-liver interface in group 1 morphology (arrows). e Tumor-liver interface in group 2 morphology (double-ended arrow). f Thick tumor-liver interface in group 3 morphology (double-ended arrow). (PPTX 1708 kb)

Published
2018
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34. Hybrid resection of massive rectal gastrointestinal stromal tumor using laparoscopic and transanal approaches.

Author

Nagakari, Kodai, Matoba, Shuichirou, Toda, Shigeo, Maeda, Yusuke, Ueno, Masashi, and Kuroyanagi, Hiroya

Subjects
GASTROINTESTINAL stromal tumors, ABDOMINOPERINEAL resection, LAPAROSCOPIC surgery, SEMINAL vesicles, SURGICAL excision, ONCOLOGIC surgery
Abstract

Rectal gastrointestinal stromal tumors (GISTs) are rare, and radical surgery such as abdominoperineal resection is necessary for large rectal GISTs to obtain tumor‐free resection margins. Here, we describe a 77‐year‐old man with a locally advanced non‐metastatic GIST in the left anterolateral wall of the lower rectum. Tumor size was estimated to be 73 mm, and invasion of the left seminal vesicle and prostate was suspected. Chemotherapy with imatinib mesylate reduced the tumor size, creating a slight gap between the tumor and anterior organs. Therefore, we performed sphincter‐sparing partial rectal resection using a hybrid method of laparoscopic and transanal approaches. The postoperative course was uneventful, and the patient remains disease‐free on adjuvant chemotherapy 12 months after surgery. This case suggests that a hybrid method of laparoscopic and transanal surgery allows oncological and function‐preserving excision of large rectal GISTs. [ABSTRACT FROM AUTHOR]

Published
2021
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37. Changes in CT morphology can be an independent response marker for patients receiving regorafenib for colorectal liver metastases: retrospective pilot study

Author

Ozaki, Yukinori, primary, Shindoh, Junichi, additional, Gonoi, Wataru, additional, Nishioka, Yujiro, additional, Kondoh, Chihiro, additional, Tanabe, Yuko, additional, Matoba, Shuichiro, additional, Kuroyanagi, Hiroya, additional, Hashimoto, Masaji, additional, and Takano, Toshimi, additional

Published
2018
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38. Combined analysis of tumor budding and tumor microenvironment in patients with stage III colorectal cancer.

Author

Nakajima, Hiromichi, primary, Inoshita, Naoko, additional, Kondoh, Chihiro, additional, Ozaki, Yukinori, additional, Tomizawa, Kenji, additional, Hanaoka, Yutaka, additional, Toda, Shigeo, additional, Tanabe, Yuko, additional, Miura, Yuji, additional, Moriyama, Jin, additional, Matoba, Shuichiro, additional, Kuroyanagi, Hiroya, additional, and Takano, Toshimi, additional

Published
2018
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41. Prognostic value of programmed death-ligand 1 expression in patients with stage III colorectal cancer

Author

Koganemaru, Shigehiro, primary, Inoshita, Naoko, additional, Miura, Yuji, additional, Miyama, Yu, additional, Fukui, Yudai, additional, Ozaki, Yukinori, additional, Tomizawa, Kenji, additional, Hanaoka, Yutaka, additional, Toda, Shigeo, additional, Suyama, Koichi, additional, Tanabe, Yuko, additional, Moriyama, Jin, additional, Fujii, Takeshi, additional, Matoba, Shuichiro, additional, Kuroyanagi, Hiroya, additional, and Takano, Toshimi, additional

Published
2017
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42. Curative resection for locally advanced sigmoid colon cancer using neoadjuvant chemotherapy with FOLFOX plus panitumumab: A case report

Author

Tomizawa, Kenji, primary, Miura, Yuji, additional, Fukui, Yudai, additional, Hanaoka, Yutaka, additional, Toda, Shigeo, additional, Moriyama, Jin, additional, Inoshita, Naoko, additional, Ozaki, Yukinori, additional, Takano, Toshimi, additional, Matoba, Shuichiro, additional, and Kuroyanagi, Hiroya, additional

Published
2017
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43. Feasibility of Laparoscopic Total Mesorectal Excision with Extended Lateral Pelvic Lymph Node Dissection for Advanced Lower Rectal Cancer after Preoperative Chemoradiotherapy

Author

Ogura, Atsushi, primary, Akiyoshi, Takashi, additional, Nagasaki, Toshiya, additional, Konishi, Tsuyoshi, additional, Fujimoto, Yoshiya, additional, Nagayama, Satoshi, additional, Fukunaga, Yosuke, additional, Ueno, Masashi, additional, and Kuroyanagi, Hiroya, additional

Published
2016
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45. Prognostic value of programmed death-ligand 1 (PD-L1) expression in patients with stage III colorectal cancer.

Author

Koganemaru, Shigehiro, primary, Inoshita, Naoko, additional, Miura, Yuji, additional, Fukui, Yudai, additional, Ozaki, Yukinori, additional, Tomizawa, Kenji, additional, Hanaoka, Yutaka, additional, Toda, Shigeo, additional, Suyama, Koichi, additional, Tanabe, Yuko, additional, Moriyama, Jin, additional, Fujii, Takeshi, additional, Matoba, Shuichiro, additional, Kuroyanagi, Hiroya, additional, and Takano, Toshimi, additional

Published
2016
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46. Prognostic significance of programmed death-ligand 1 (PD-L1) expression on tumor infiltrating immune cells (IC) in patients with stage IIIb colorectal cancer.

Author

Koganemaru, Shigehiro, primary, Inoshita, Naoko, additional, Miura, Yuji, additional, Fukui, Yudai, additional, Ozaki, Yukinori, additional, Tomizawa, Kenji, additional, Hanaoka, Yutaka, additional, Toda, Shigeo, additional, Suyama, Koichi, additional, Tanabe, Yuko, additional, Moriyama, Jin, additional, Fujii, Takeshi, additional, Matoba, Shuichiro, additional, Kuroyanagi, Hiroya, additional, and Takano, Toshimi, additional

Published
2016
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49. Prognostic Impact of Adjuvant Chemotherapy after Hepatic Resection for Synchronous and Early Metachronous Colorectal Liver Metastases.

Author

Nishioka, Yujiro, Moriyama, Jin, Matoba, Shuichiro, Kuroyanagi, Hiroya, Hashimoto, Masaji, and Shindoh, Junichi

Subjects
COLON cancer, ADJUVANT treatment of cancer, CANCER prognosis
Abstract

Background: Although the usefulness of adjuvant chemotherapy has been established in the treatment for stages II/III colorectal cancer, its prognostic advantage for colorectal liver metastases (CLM) remains controversial. Methods: Two hundred and nine patients who underwent curative resection for CLM were reviewed. The potential advantage of adjuvant chemotherapy was investigated in 3 groups stratified by disease-free interval (DFI): synchronous CLM (S-CLM), early metachronous CLM (EM-CLM, DFI ≤1 year), and late metachronous CLM (LM-CLM, DFI >1 year). Results: Of the 105 patients who underwent adjuvant chemotherapy after surgery, 47 received uracil-tegafur and leucovorin (UFT/LV) while 58 received the oxaliplatin-based regimen. Five-year recurrence-free survival (RFS) rates in patients with/without adjuvant chemotherapy were 32.8/11.2% in S-CLM (p = 0.002), 43.7/15.2% in EM-CLM (p = 0.002), 44.1/29.6% in LM-CLM (p = 0.163), respectively. Five-year overall survival (OS) rates were 77.9/44.5% in S-CLM (p = 0.021), 81.5/39.5% in EM-CLM (p = 0.015), 76.1/65.4% in LM-CLM (p = 0.411), respectively. Multivariate analyses in S-CLM and EM-CLM indicated that adjuvant chemotherapy is correlated with better RFS and OS irrespective of the regimens, while the incidence of severe adverse event was significantly different between UFT/LV and oxaliplatin (6.8 vs. 50.9%, p < 0.0001). Conclusion: Adjuvant chemotherapy might improve the clinical outcomes in S-CLM and EM-CLM. UFT/LV might be a choice for CLM in adjuvant settings in selected patients. [ABSTRACT FROM AUTHOR]

Published
2018
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50. Gastroenterological Surgery: Large intestine

Author

Kuroyanagi, Hiroya, primary, Inomata, Masafumi, additional, Saida, Yoshihisa, additional, Hasegawa, Suguru, additional, Funayama, Yuji, additional, Yamamoto, Seiichiro, additional, Sakai, Yoshiharu, additional, and Watanabe, Masahiko, additional

Published
2015
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