R. Matsuyama

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Aliases
R. Matsuyama, Ryusei Matsuyama, Ryu-ji Matsuyama
Publication record
275 papers · 5,408 citations · H-index 43

PAPERS

Clinical characteristics of and risk factors for hepatolithiasis developed after surgery for congenital biliary dilatation
20260 citationsauthor #2
A Machine Learning Model for Predicting Posthepatectomy Liver Failure After Hepatectomy With Extrahepatic Bile Duct Resection for Perihilar Cholangiocarcinoma: With and Without Indocyanine Green
20260 citationsauthor #3
Treatment of initially unresectable local advanced pancreatic adenocarcinoma with FOLFIRINOX: A prospective study YCOG1403 (C-FLAP study)
20250 citationsauthor #8
Preoperative Aortic Calcification Volume Predicts Postoperative Complications in Nonpancreatic Cancer Patients Undergoing Pancreaticoduodenectomy
20250 citationsauthor #9
Prognostic Significance of Post-Neoadjuvant Chemotherapy Carbohydrate Antigen 19-9 Levels in Patients With Resectable Pancreatic Cancer Treated With S-1 and Gemcitabine: A Retrospective Cohort Study
20250 citationsauthor #5
High CDCP1 Expression Reflects Immune and Stromal Remodeling and Oncogenic Signaling in Pancreatic Ductal Adenocarcinoma
20250 citationsauthor #9
Clinical Relevance of High-Grade Pancreatic Intraepithelial Neoplasia at the Pancreatic Transection Margin in Patients with Pancreatic Ductal Adenocarcinoma
20252 citationsauthor #9
Efficacy of Conversion Surgery for Initially Unresectable Biliary Tract Cancer That Has Responded to Down-Staging Chemotherapy
20251 citationsauthor #2
Points of the revised Clinical Practice Guidelines 2025 for Pancreatic Cancer
20250 citationsauthor #14
Significance of Intraoperative Lavage Cytology in Perihilar Cholangiocarcinoma
20250 citationsauthor #2
Comparison between Neoadjuvant Chemoradiotherapy and Chemotherapy for Patients with Resectable Pancreatic Cancer
20253 citationsauthor #2
Endotoxin Activity Assay as a Novel Predictor of Disease Progression in Patients With Mild Cholangitis
20250 citationsauthor #3
Neoadjuvant Chemoradiotherapy Enhances Tumor PD-L1 Expression in Pancreatic Cancer
20251 citationsauthor #3
Immediate Reconstruction of Pancretaticogastrostomy Following Hepatopancreatoduodenectomy for Biliary Tact Cancer: A Single‐Center Review of 33 Consecutive Patients
20250 citationsauthor #1
Correction: A Multicenter Retrospective Study on Adjuvant S-1 Chemotherapy Versus Observation Following Major Hepatectomy for Perihilar Cholangiocarcinoma
20242 citationsauthor #6
Novel machine‐learning model for predicting lymph node metastasis in resectable pancreatic ductal adenocarcinoma
20244 citationsauthor #8
Predicting risk of recurrence after resection of stage I intrahepatic cholangiocarcinoma.
202415 citationsauthor #16
Conversion surgery for initially unresectable locally advanced biliary tract cancer: A multicenter collaborative study conducted in Japan and Korea
202413 citationsauthor #10
Multicenter randomized phase II study on S-1 and oxaliplatin therapy as an adjuvant after hepatectomy for colorectal liver metastases (YCOG1001)
20240 citationsauthor #17
A Multicenter Retrospective Study on Adjuvant S-1 Chemotherapy Versus Observation Following Major Hepatectomy for Perihilar Cholangiocarcinoma
20240 citationsauthor #6
Therapeutic Outcome of Multidisciplinary Treatment in Unresectable Biliary Tract Cancer: A Multicenter Retrospective Analysis
20242 citationsauthor #3
[Ⅲ. Intractable Anastomotic Stricture after Biliary Reconstruction].
20230 citationsauthor #2
Requirements for hospitals in Japan to have low operative mortality and failure‐to‐rescue rates
20239 citationsauthor #7
Significance of adjuvant therapy for distal bile duct cancer
20230 citationsauthor #2
Glasgow Prognostic Score Predicts Survival and Recurrence Pattern in Patients With Hepatocellular Carcinoma After Hepatectomy
20232 citationsauthor #3
Trends and Variations in Drain Use Following Pancreatoduodenectomy: Is Early Drain Removal Becoming More Common?
20234 citationsauthor #8
外科的治療法，補助療法
20230 citationsauthor #13
The significance of vascular combined resection and reconstruction for locally advanced perihilar cholangiocarcinoma
20230 citationsauthor #1
Clinical Practice Guidelines for Pancreatic Cancer 2022 from the Japan Pancreas Society: a synopsis
2023104 citationsauthor #26
A multicenter study on adjuvant chemotherapy of S-1 versus observation for resected perihilar cholangiocarcinoma.
20230 citationsauthor #6
Clinical utility of a cancer genome panel test for patients with hepato-biliary-pancreatic cancer
20230 citationsauthor #2
Is surgery justified for perihilar cholangiocarcinoma in elderly patients over 75 years old?
20230 citationsauthor #8
Neoadjuvant Therapy for Extrahepatic Biliary Tract Cancer: A Propensity Score-Matched Survival Analysis
202314 citationsauthor #8
Abundance of reactive oxygen species (ROS) is associated with tumor aggressiveness, immune response, and worse survival in breast cancer
202263 citationsauthor #7
Low RUFY3 expression level is associated with lymph node metastasis in older women with invasive breast cancer
20229 citationsauthor #5
Abstract P1-01-04: RUFY3 as a predictive intratumor biomarker for lymph node metastasis in older women with invasive breast cancer
20220 citationsauthor #5
CRMP4 Up-regulates M2 Macrophages and Myeloid-derived Suppressor Cells to Promote Pancreatic Cancer in Mice
20223 citationsauthor #7
Outcomes of neoadjuvant gemcitabine plus S‐1 and radiation therapy for borderline resectable pancreatic cancer
20229 citationsauthor #2
Impact of Gemcitabine Plus S1 Neoadjuvant Chemotherapy on Borderline Resectable Perihilar Cholangiocarcinoma
202216 citationsauthor #1
Surgical Indications for Huge Hepatocellular Carcinoma
20223 citationsauthor #2
Enhanced immune response outperform aggressive cancer biology and is associated with better survival in triple-negative breast cancer
202227 citationsauthor #8
Examination of the characteristics of long-term survivors among patients with gallbladder cancer with liver metastasis who underwent surgical treatment: a retrospective multicenter study (ACRoS1406)
202211 citationsauthor #3
Linkage of methionine addiction, histone lysine hypermethylation, and malignancy
202263 citationsauthor #9
Abstract 6112: Clinical relevance of intra-tumoral density of regulatory T cells as a predictive factor for chemotherapy response in metastatic colorectal cancer
20221 citationsauthor #6
Role of the Intramural Vascular Network of the Extrahepatic Bile Duct for the Blood Circulation in the Recipient Extrahepatic Bile Duct Used for Duct-to-Duct-Biliary-Anastomosis in Living Donor Liver Transplantation
20221 citationsauthor #2
Real-time mortality risk calculator following pancreatoduodenectomy: quantifying the impact of perioperative events.
20222 citationsauthor #6
Outcomes of lung metastasis from pancreatic cancer: A nationwide multicenter analysis
202247 citationsauthor #3
ASO Visual Abstract: Impact of Gemcitabine Plus S1 Neoadjuvant Chemotherapy on Borderline Resectable Perihilar Cholangiocarcinoma
20220 citationsauthor #1
Abstract 5969: Intra-tumoral coagulation is significantly associated with EMT, angiogenesis, and worse patient survival in gastric cancer
20220 citationsauthor #5
Efficacy of neoadjuvant chemotherapy for initially resectable colorectal liver metastases: A retrospective cohort study
20220 citationsauthor #7
A Case of Complete Necrosis of Hepatocellular Carcinoma Induced by Preoperative Portal Vein Embolization
20220 citationsauthor #9
Prognostic markers including immune and inflammatory factors predict outcomes in patients receiving postoperative radiation therapy for cholangiocarcinoma
20222 citationsauthor #2
Intratumoral density of regulatory T cells is a predictor of host immune response and chemotherapy response in colorectal cancer.
202227 citationsauthor #8
MELK expression in breast cancer is associated with infiltration of immune cell and pathological compete response (pCR) after neoadjuvant chemotherapy.
202130 citationsauthor #7
Urine as a Source of Liquid Biopsy for Cancer
202192 citationsauthor #8
Conflicting roles of EGFR expression by subtypes in breast cancer.
202118 citationsauthor #6
A Case of Intrahepatic Cholangiocarcinoma with Gallbladder Metastasis
20210 citationsauthor #2
Surgical Outcomes of Pancreatectomy with Resection of the Portal Vein and/or Superior Mesenteric Vein and Jejunal Vein for Pancreatic Head Cancer
202117 citationsauthor #6
Essential updates 2019/2020: Surgical treatment of gallbladder cancer
202114 citationsauthor #1
Abstract 404: A novel 4-gene score predict patient survival as well as pathologically complete (R0) resection in pancreatic cancer
20210 citationsauthor #5
Abstract 2655: Abundance of intra-tumoral angiogenesis is associated with attenuated tumor aggressive biology, tumor microenvironment, as well as worse survival in gastric cancer patients
20210 citationsauthor #7
Annexin A1 Expression Is Associated with Epithelial–Mesenchymal Transition (EMT), Cell Proliferation, Prognosis, and Drug Response in Pancreatic Cancer
202149 citationsauthor #5
Abundance of Microvascular Endothelial Cells Is Associated with Response to Chemotherapy and Prognosis in Colorectal Cancer
202127 citationsauthor #6
Abstract PS4-35: The E2F cell cycle pathway score to predict treatment response among patients with breast cancer
20210 citationsauthor #4
Immune cytolytic activity is associated with reduced intra-tumoral genetic heterogeneity and with better clinical outcomes in triple negative breast cancer.
202122 citationsauthor #15
Reversion from Methionine Addiction to Methionine Independence Results in Loss of Tumorigenic Potential of Highly-malignant Lung-cancer Cells
202137 citationsauthor #10
Defining the Risk of Early Recurrence Following Curative-Intent Resection for Distal Cholangiocarcinoma
202129 citationsauthor #17
Perioperative Risk and Prognostic Factors for Pulmonary Thromboembolism Developing after Abdominal Surgery (YCOG1105 Study)
20210 citationsauthor #3
Association of allograft rejection response score with biological cancer aggressiveness and with better survival in triple-negative breast cancer (TNBC).
20213 citationsauthor #6
Superiority of Sepsis-3 to Sepsis-2 in the Early Detection of Severe Early Postoperative Sepsis After Living Donor Liver Transplantation.
20210 citationsauthor #6
G2M checkpoint signaling among six-cell proliferation-related pathway as a biomarker for prediction and prognosis in pancreatic cancer.
20211 citationsauthor #5
Abstract 2072: DNA repair pathway score is associated with cancer aggressiveness and worse survival in hepatocellular carcinoma (HCC)
20211 citationsauthor #5
Abstract 1966: Cell proliferation-related pathway scores (G2M Checkpoint, E2F Targets, MYC Targets V1 and V2, Mitotic Spindle, p53 pathway) as predictive and prognostic biomarkers in pancreatic cancer
20212 citationsauthor #5
Extent and Instability of Trimethylation of Histone H3 Lysine Increases With Degree of Malignancy and Methionine Addiction
202161 citationsauthor #8
Mortality, morbidity, and failure to rescue in hepatopancreatoduodenectomy: An analysis of patients registered in the National Clinical Database in Japan
202153 citationsauthor #5
Survival Benefit of Primary Tumor Resection Among Elderly Patients with Pancreatic Neuroendocrine Tumors
20218 citationsauthor #8
A Novel Three-Gene Score as a Predictive Biomarker for Pathologically Complete Response after Neoadjuvant Chemotherapy in Triple-Negative Breast Cancer
202121 citationsauthor #5
Sphingosine 1-phosphate (S1P) produced by sphingosine kinase 1 (SphK1) and exported via ABCC1 is related to hepatocellular carcinoma (HCC) progression.
202124 citationsauthor #6
A Classification System Specific for Recurrent Inguinal Hernia Following Open Hernia Surgery
20215 citationsauthor #10
Incidental Gallbladder Cancer on Cholecystectomy: Strategy for Re-resection of Presumed Benign Diseases from a Retrospective Multicenter Study by the Yokohama Clinical Oncology Group
202111 citationsauthor #1
Hepatectomy for liver metastasis from rectal cancer in a patient with mitochondrial disease
20210 citationsauthor #3
Real-time mortality risk calculator following pancreatoduodenectomy: quantifying the impact of perioperative events
20211 citationsauthor #4
Abstract PS17-51: Angiogenesis in a bulk tumor is associated with cancer immunity and metastasis
20210 citationsauthor #4
Adipogenesis in triple-negative breast cancer is associated with unfavorable tumor immune microenvironment and with worse survival
202134 citationsauthor #6
A novel five-gene score to predict complete pathological response to neoadjuvant chemotherapy in ER-positive/HER2-negative breast cancer.
202112 citationsauthor #7
The Unfolded Protein Response Is Associated with Cancer Proliferation and Worse Survival in Hepatocellular Carcinoma
202120 citationsauthor #4
Enhanced DNA Repair Pathway is Associated with Cell Proliferation and Worse Survival in Hepatocellular Carcinoma (HCC)
202149 citationsauthor #5
Angiogenesis is associated with an attenuated tumor microenvironment, aggressive biology, and worse survival in gastric cancer patients.
202127 citationsauthor #7
Abstract 646: The amount of NRF2 expression in bulk tumors involves immune cells as well as cancer cells, which is associated with better prognosis in ER-positive/HER2-negative breast cancer
20210 citationsauthor #6
Reversion of Cancer Cells From Methionine-Addiction to Methionine Independence Results in Loss of Histone Lysine Overmethylation and Malignancy
20210 citationsauthor #9
G2M checkpoint pathway alone is associated with drug response and survival among cell proliferation-related pathways in pancreatic cancer.
202151 citationsauthor #6
Abstract PS18-33: Is inflammation a hero or a villain in human breast cancer?
20210 citationsauthor #4
Covered metallic stent placement for biliary drainage could be promising in the coming era of neoadjuvant chemo‐radiation therapy for all pancreatic cancer
202117 citationsauthor #7
[Surgical management of cholecystocholedocholithiasis].
20211 citationsauthor #2
Should Lymph Nodes Be Retrieved in Patients with Intrahepatic Cholangiocarcinoma? A Collaborative Korea–Japan Study
202121 citationsauthor #15
Intra-Tumoral Angiogenesis Is Associated with Inflammation, Immune Reaction and Metastatic Recurrence in Breast Cancer
202074 citationsauthor #5
Low Incidence of High-Grade Pancreatic Intraepithelial Neoplasia Lesions in a Crmp4 Gene–Deficient Mouse Model of Pancreatic Cancer
20206 citationsauthor #8
Cancer-specific overmethylation of histone H3 lysines is necessary for methionine addiction and malignancy
20206 citationsauthor #11
A Case of Pancreatic Arteriovenous Malformation with an Associated Pseudoaneurysm
20201 citationsauthor #5
Role of Conversion Surgery for Unresectable Pancreatic Cancer After Long-Term Chemotherapy
202012 citationsauthor #2

TIMELINE

1999 10 citations

2001 3 citations

2002 4 citations

2003 0 citations

2004 2 citations

2005 3 citations

2006 149 citations

2007 109 citations

2008 34 citations

2009 13 citations

2010 51 citations

2011 15 citations

2012 93 citations

2013 46 citations

2014 492 citations

2015 386 citations

2016 417 citations

2017 180 citations

2018 190 citations

2019 381 citations

2020 1,621 citations

2021 758 citations

2022 284 citations

2023 133 citations

2024 36 citations

2025 7 citations

2026 0 citations

Unknown 0 citations

R. Matsuyama

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