A. Hayasaki

Superiority of robotic over laparoscopic distal pancreatectomy in surgical outcomes evaluated by textbook outcome.
20260 citationsauthor #5
Prognostic Significance of Portal Vein Tumor Thrombus in Pancreatic Ductal Adenocarcinoma Treated With Chemoradiotherapy
20260 citationsauthor #1
A new framework for tailoring laparoscopic cholecystectomy: Integrating preoperative clinical factors with surgical difficulty based on the Tokyo Guidelines 2018
20252 citationsauthor #2
Prediction of pancreatic cancer resection achievement at the initiation of chemoradiotherapy
20250 citationsauthor #3
Distinct prognostic impacts of age-adjusted Charlson comorbidity index and geriatric nutritional risk index in patients with intraductal papillary mucinous neoplasm
20250 citationsauthor #4
A severity‐based tumor‐superior mesenteric/portal vein interface grading criteria as a predictor of survival outcomes in pancreatic head ductal adenocarcinoma patients undergoing pancreaticoduodenectomy following neoadjuvant chemoradiotherapy
20250 citationsauthor #5
Surgical strategies for locally advanced pancreatic cancer following gemcitabine plus S-1-based chemoradiotherapy.
20250 citationsauthor #1
Long-term survival analysis based on tumor location in patients with pancreatic ductal adenocarcinoma who underwent pancreatectomy following neoadjuvant chemoradiotherapy
20251 citationsauthor #9
Prognostic impacts of biological and conditional factors in patients with anatomically resectable pancreatic adenocarcinoma treated with preoperative chemoradiotherapy
20252 citationsauthor #4
Butterfly Traction: A New Standardized Approach for Gallbladder Bed Detachment in Laparoscopic Cholecystectomy
20250 citationsauthor #3
Institut Mutualiste Montsouris classification is associated with postoperative portal vein thrombosis in laparoscopic liver resection
20250 citationsauthor #9
A recent update on the morphological classification of intraductal papillary neoplasm of the bile duct: Correlation with postoperative prognosis and pathological features
20251 citationsauthor #7
Impact of aortic calcification at the origin of celiac artery on post-operative outcomes of major hepatectomy: A significant risk factor for posthepatectomy liver failure
20250 citationsauthor #8
A Case of Robot‐Assisted Pylorus‐Preserving Pancreatoduodenectomy for Branch‐Duct Intraductal Papillary Mucinous Neoplasms Complicated With an Annular Pancreas
20251 citationsauthor #1
Nationwide epidemiological survey of acute pancreatitis in Japan, 2021: the impact of the COVID-19 pandemic and revised clinical guidelines
20253 citationsauthor #39
Impact of Surgical Resection After Induction Gemcitabine Plus S-1-Based Chemoradiotherapy in Patients with Locally Advanced Pancreatic Ductal Adenocarcinoma: A Focus on UR-LA Cases
20252 citationsauthor #3
Splenic vein resection is not a risk factor for delayed gastric emptying after pancreaticoduodenectomy with combined resection of the portal or superior mesenteric vein
20251 citationsauthor #12
A comparison of pancreatojejunostomy using the modified Blumgart anastomosis with or without a four-needle three-loop suture device and continuous sutures for duct-to-mucosa anastomosis in robotic pancreaticoduodenectomy
20242 citationsauthor #9
Laparoscopic Warshaw procedure in pediatric solid pseudopapillary neoplasm of the pancreas: Technical feasibility and oncological outcomes
20241 citationsauthor #5
Hepatopancreatoduodenectomy with delayed division of the pancreatic parenchyma when utilizing a right lateral approach to the superior mesenteric artery
20241 citationsauthor #1
Laparoscopic left hepatectomy for a patient with an absence of portal bifurcation using real-time imaging: a case report
20240 citationsauthor #7
Impact of clinically relevant posthepatectomy liver failure predicted by preoperative evaluation of functional remnant hepatic reserve
20240 citationsauthor #5
Prognostic impact of the distance from the anterior surface to tumor cells in pancreatoduodenectomy with neoadjuvant chemoradiotherapy for pancreatic ductal adenocarcinoma
20242 citationsauthor #3
Prognostic significance of early and multiple recurrences after curative resection for hepatocellular carcinoma
20245 citationsauthor #5
Peritoneal washing cytology status as a crucial prognostic determinant in patients with localized pancreatic ductal adenocarcinoma who underwent curative-intent resection following preoperative chemoradiotherapy
20240 citationsauthor #5
Radiomics-based prediction of nonalcoholic fatty liver disease following pancreatoduodenectomy
20243 citationsauthor #4
Tumor Budding Is an Independent Adverse Prognostic Factor of Pancreatic Ductal Adenocarcinoma Patients Treated by Resection After Preoperative Chemoradiotherapy
20243 citationsauthor #1
Effect of Transpancreatic Mattress Suture With Polyglycolic Acid Sheet in Pancreatic Stump Closure for the Prevention of Postoperative Pancreatic Fistula in Robotic Distal Pancreatectomy
20242 citationsauthor #5
Superiority of Robotic Over Laparoscopic Spleen-Preserving Distal Pancreatectomy With Warshaw Procedure for Reducing the Incidence of Postoperative Splenic Infarction
20243 citationsauthor #4
Short‐term surgical outcomes of open, laparoscopic, and robot‐assisted pancreatoduodenectomy: A comparative, single‐center, retrospective study
20244 citationsauthor #8
Impact of radiological and pathological splenic vein involvement in patients with resectable pancreatic body or tail cancer
20242 citationsauthor #8
Xa inhibitor edoxaban ameliorates hepatic ischemia-reperfusion injury via PAR-2–ERK 1/2 pathway
20243 citationsauthor #6
Choledochocele with hyperplastic epithelium in a patient who developed severe acute pancreatitis and underwent subtotal stomach-preserving pancreatoduodenectomy: a case report
20231 citationsauthor #1
Anterior versus posterior radical antegrade modular pancreatosplenectomy for pancreatic body and tail cancer: an inverse probability of treatment weighting with survival analysis
20232 citationsauthor #6
Bile Duct Metastasis of Gastric Cancer with Difficulty in Differential Diagnosis from Perihilar Cholangiocarcinoma: A Case Report and Review of the Literature
20231 citationsauthor #3
Surgical outcomes of the Frey procedure for chronic pancreatitis: correlation between preoperative characteristics and the histological severity of pancreatic fibrosis
20231 citationsauthor #6
Efficacy of Reinforced Stapler Versus Hand-sewn Closure of the Pancreatic Stump During Pure Laparoscopic Distal Pancreatectomy to Reduce Pancreatic Fistula
202310 citationsauthor #5
Spleen volume is a predictor of posthepatectomy liver failure and short-term mortality for hepatocellular carcinoma
20238 citationsauthor #10
Safety and efficacy of neoadjuvant chemotherapy based on our resectability criteria for locally advanced perihilar cholangiocarcinoma
20239 citationsauthor #5
Clinical Significance of Plasma Tenascin-C Levels in Recipients With Prolonged Jaundice After Living Donor Liver Transplantation.
20231 citationsauthor #4
Extrapancreatic extension is a better adverse prognostic factor than tumor size in patients with localized pancreatic ductal adenocarcinoma treated with chemoradiotherapy - comparison of T category between the American Joint Committee on Cancer and Japan Pancreas Society.
20236 citationsauthor #1
門脈ガス血症と遷延性黄疸を伴った小腸GIST（径15cm）破裂・穿孔の1例
20230 citationsauthor #5
A Case of Liver Resection for Multiple Hepatocellular Adenoma in a Patient with Glycogen Storage Disease Type Ia
20220 citationsauthor #3
Resection type is a predictor of postoperative complications in laparoscopic partial liver resection
20224 citationsauthor #6
Safety and benefits of major hepatectomy with extrahepatic bile duct resection in older perihilar cholangiocarcinoma patients
20223 citationsauthor #5
Postoperative Donor Liver Damage Can Predict Recipient Short-Term Survival in Living Donor Liver Transplantation.
20221 citationsauthor #5
Risk factor analysis of postoperative pancreatic fistula after distal pancreatectomy, with a focus on pancreas-visceral fat CT value ratio and serrated pancreatic contour
20226 citationsauthor #6
Concomitant splenic artery ligation has no preventive effect on left‐sided portal hypertension following pancreaticoduodenectomy with the resection of the portal and superior mesenteric vein confluence for pancreatic ductal adenocarcinoma
20223 citationsauthor #5
Biliary obstruction caused by plant seeds
20220 citationsauthor #6
Surgical outcomes of pancreatectomy with jejunal vein resection for pancreatic head cancer
20220 citationsauthor #11
Predictive risk factors for early recurrence in patients with localized pancreatic ductal adenocarcinoma who underwent curative-intent resection after preoperative chemoradiotherapy
20228 citationsauthor #3
Improving prognosis in pancreatic cancer through early detection: a prospective observational study (Preprint)
20210 citationsauthor #7
[Presurgical Treatment with Axitinib and Pembrolizumab Reduced Operation Risk by Downsizing the Vena Cava Tumor Thrombus in Clear Cell Renal Cell Carcinoma : A Case Report].
20210 citationsauthor #11
Clinical significance and predictors of complete or near-complete histological response to preoperative chemoradiotherapy in patients with localized pancreatic ductal adenocarcinoma.
20218 citationsauthor #7
The prognostic impact of lymphocyte-to-C-reactive protein score in patients undergoing surgical resection for intrahepatic cholangiocarcinoma: A comparative study of major representative inflammatory / immunonutritional markers
202111 citationsauthor #7
The usefulness of modified splenic hilum hanging maneuver in laparoscopic splenectomy, especially for patients with huge spleen: a case-control study with propensity score matching
20211 citationsauthor #7
Biliary peritonitis due to liver cyst rupture in autosomal dominant polycystic kidney disease
20213 citationsauthor #3
Impact of Combined Vascular Resection and Reconstruction in Patients with Advanced Perihilar Cholangiocarcinoma
20218 citationsauthor #9
Optimal management of peripancreatic fluid collection with postoperative pancreatic fistula after distal pancreatectomy: Significance of computed tomography values for predicting fluid infection
202110 citationsauthor #5
Case Report: A Difficult-to-Diagnose Case of Hyperinsulinemic Hypoglycemia Surgically Treated After Developing Acute Pancreatitis
20213 citationsauthor #3
Proximal subtotal pancreatectomy as an alternative to total pancreatectomy for malnourished patients
20213 citationsauthor #6
Phase I Study of Preoperative Chemoradiotherapy Using Gemcitabine Plus Nab-Paclitaxel for Patients Who Have Localized Pancreatic Ductal Adenocarcinoma With Contact or Invasion to Major Arteries
20211 citationsauthor #1
Improving the Prognosis of Pancreatic Cancer Through Early Detection: Protocol for a Prospective Observational Study
20214 citationsauthor #7
Onodera’s prognostic nutritional index is a strong prognostic indicator for patients with hepatocellular carcinoma after initial hepatectomy, especially patients with preserved liver function
202022 citationsauthor #3
Patient-Derived Cancer Xenograft Xebrafish Model (PDXZ) and Personalized Medicine
20200 citationsauthor #5
Surgical Procedures of Portal Vein Reconstruction for Recipients With Portal Vein Thrombosis in Adult-to-Adult Living Donor Liver Transplantation.
20208 citationsauthor #3
Protruded duodenal tumor arising from Santorini’s duct of the pancreas: a rare case of intraductal papillary mucinous neoplasm mimicking a duodenal polypoid tumor
20202 citationsauthor #5
Neoadjuvant chemotherapy followed by curative-intent surgery for perihilar cholangiocarcinoma based on its anatomical resectability classification and lymph node status
202029 citationsauthor #4
Pancreas-visceral fat CT value ratio and serrated pancreatic contour are strong predictors of postoperative pancreatic fistula after pancreaticojejunostomy
202019 citationsauthor #6
The Impact of Dabigatran Treatment on Sinusoidal Protection Against Hepatic Ischemia/Reperfusion Injury in Mice
20209 citationsauthor #7
Association between gastric Candida colonization and surgical site infections after high-level hepatobiliary pancreatic surgeries: the results of prospective observational study
20205 citationsauthor #3
How to divide the pancreatic parenchyma in patients with a portal annular pancreas: laparoscopic spleen-preserving distal pancreatectomy for serous cystic neoplasms
20205 citationsauthor #4
Prolonged operating time is a significant perioperative risk factor for arterial pseudoaneurysm formation and patient death following hemorrhage after pancreaticoduodenectomy.
202012 citationsauthor #7
Neoadjuvant chemotherapy followed by curative-intent surgery for perihilar cholangiocarcinoma based on its anatomical resectability classification and lymph node status
20200 citationsauthor #4
Role of Serum Carcinoma Embryonic Antigen (CEA) Level in Localized Pancreatic Adenocarcinoma: CEA Level Before Operation is a Significant Prognostic Indicator in Patients With Locally Advanced Pancreatic Cancer Treated With Neoadjuvant Therapy Followed by Surgical Resection
202032 citationsauthor #3
High tumor budding is a strong predictor of poor prognosis in the resected perihilar cholangiocarcinoma patients regardless of neoadjuvant therapy, showing survival similar to those without resection
202023 citationsauthor #7
The clinical impact of portal venous patency ratio on prognosis of patients with pancreatic ductal adenocarcinoma undergoing pancreatectomy with combined resection of portal vein following preoperative chemoradiotherapy.
20196 citationsauthor #3
Clinical Significance of Plasma Apolipoprotein-AII Isoforms as a Marker of Pancreatic Exocrine Disorder for Patients with Pancreatic Adenocarcinoma Undergoing Chemoradiotherapy, Paying Attention to Pancreatic Morphological Changes
201916 citationsauthor #1
Comparative Study Between Gemcitabine-Based and Gemcitabine Plus S1–Based Preoperative Chemoradiotherapy for Localized Pancreatic Ductal Adenocarcinoma, With Special Attention to Initially Locally Advanced Unresectable Tumor
201912 citationsauthor #4
Prognostic Nutritional Index after Chemoradiotherapy Was the Strongest Prognostic Predictor among Biological and Conditional Factors in Localized Pancreatic Ductal Adenocarcinoma Patients
201923 citationsauthor #3
Survival Analysis in Patients with Pancreatic Ductal Adenocarcinoma Undergoing Chemoradiotherapy Followed by Surgery According to the International Consensus on the 2017 Definition of Borderline Resectable Cancer
201845 citationsauthor #1
Biliary Complications During and After Donor Hepatectomy in Living Donor Liver Transplantation Focusing on Characteristics of Biliary Leakage and Treatment for Intraoperative Bile Duct Injury.
201814 citationsauthor #3
The Critical Role of Biliary Candidiasis in Development of Surgical Site Infections after Pancreatoduodenectomy: Results of Prospective Study Using a Selective Culture Medium for Candida Species
201812 citationsauthor #5
Recombinant Human Soluble Thrombomodulin Attenuates Hepatic Ischemia and/or Reperfusion Injury by Inhibiting Leukocyte Accumulation in Mice With Normal and Fatty Liver.
20186 citationsauthor #3
Feasibility and Outcomes of Direct Dual Portal Vein Anastomosis in Living Donor Liver Transplantation Using the Right Liver Graft With Anatomic Portal Vein Variations.
20188 citationsauthor #3
Intravenous Administration of Tacrolimus Stabilizes Control of Blood Concentration Regardless of CYP3A5 Polymorphism in Living Donor Liver Transplantation: Comparison of Intravenous Infusion and Oral Administration in Early Postoperative Period.
20187 citationsauthor #6
Clinical Significance of Histological Effect and Intratumor Stromal Expression of Tenascin-C in Resected Specimens After Chemoradiotherapy for Initially Locally Advanced Unresectable Pancreatic Ductal Adenocarcinoma
20187 citationsauthor #1
Early Enteral Feeding of Daikenchuto Stimulates Early Bowel Movement With Increased Portal Venous Blood Flow After Living Donor Liver Transplantation.
20183 citationsauthor #2
De Novo Malignancy Following Adult-to-Adult Living Donor Liver Transplantation Focusing on Posttransplantation Lymphoproliferative Disorder.
20188 citationsauthor #2
Outcomes after pancreaticoduodenectomy with 12 stitches duct-to-mucosa pancreaticojejunostomy
20180 citationsauthor #2
Isolated Biliary Fistula After Donor Right Hepatectomy and Its Novel Interventional Treatment: Isolated Liver-Punctured Drainage.
20181 citationsauthor #4
[I. The Efficacy of Preoperative Adjuvant Treatment for Pancreatic Ductal Adenocarcinoma Based on the Resectability Criteria according to JPS 7th].
20171 citationsauthor #3
Long-term outcomes after pancreaticoduodenectomy using pair-watch suturing technique: Different roles of pancreatic duct dilatation and remnant pancreatic volume for the development of pancreatic endocrine and exocrine dysfunction.
201718 citationsauthor #4
International consensus on definition and criteria of borderline resectable pancreatic ductal adenocarcinoma 2017.
2017638 citationsauthor #7
The pre-, intra- and post-operative risk factors of clinically relevant pancreatic fistula after distal pancreatectomy: Postoperative CRP level as significant independent risk factor
20160 citationsauthor #2
Clinical significance of plasma apolipoprotein-AII isoforms as a surrogate of pancreatic exocrine insufficiency for patients with pancreatic adenocarcinoma, paying attention to pancreatic morphological changes including tumor after chemoradiotherapy
20160 citationsauthor #1
Clinical significance of conversion surgery after gemcitabine plus S-1 based chemoradiotherapy in patients with initially locally advanced unresectable pancreatic adenocarcinoma: application of intratumoral expression of Tenascin C as a surrogate marker
20161 citationsauthor #3
Surgical outcome of pancreaticoduodenectomy with vascular resection after chemoradiotherapy for pancreatic ductal adenocarcinoma
20160 citationsauthor #4
Factor Analysis Influencing Postoperative Hospital Stay and Medical Costs for Patients with Definite, Suspected, or Unmatched Diagnosis of Acute Cholecystitis according to the Tokyo Guidelines 2013
201612 citationsauthor #1
The influence of education and support for pancreatic cancer patients and their family by the medical team, “Suigan-Kyoshitsu: Pancreatic Cancer Patient's Classroom”: A questionnaire survey
20160 citationsauthor #2

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