Faculty Information - NAKAI Yousuke

（Last updated : 2025-12-19 10:48:13）

NAKAI Yousuke
Department School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine Department of Internal Medicine, Division of Gastroenterology

Position Professor and Division head

■ Published papers

1.	Original article	Efficacy and safety of a novel multi-hole fully covered self-expandable metallic stent for malignant distal biliary obstruction: Multicenter retrospective study. 2025/07
2.	Original article	Quadrant, necrosis, and infection criteria for the risk stratification of walled-off necrosis: external validation using multi-institutional data 2025/07
3.	Review article	Ergonomic endoscopy - Fundamentals of ergonomics and interventions for endoscopy-related musculoskeletal disorders. 2025/06
4.	Original article	Necrosectomy and its timing in relation to clinical outcomes of EUS-guided treatment of walled-off pancreatic necrosis: a multicenter study 2025/06
5.	Review article	Fatty Pancreas: Its Potential as a Risk Factor for Pancreatic Cancer and Clinical Implications 2025/05
6.	Original article	Risk factors for pancreatic cancer in individuals with intraductal papillary mucinous neoplasms and no high-risk stigmata during up to 5 years of surveillance: a prospective longitudinal cohort study. 2025/05
7.	Original article	Association between homologous recombination deficiency and time to treatment failure to platinum-based chemotherapy for pancreatic cancer by using the C-CAT database 2025/02
8.	Review article	Development of a Dedicated X-Ray Fluoroscopic Apparatus for Therapeutic Pancreatobiliary Endoscopy: A Review 2025/02
9.	Original article	Impact of ursodeoxycholic acid treatment on Fontan-associated liver disease 2025/02
10.	Other	Can Endoscopic Ultrasound-guided Ablation Prolong Disease-specific Survival In Pancreatic Cysts? 2025/01
11.	Original article	Controversies in endoscopic ultrasonography-guided management of walled-off necrosis 2025/01
12.	Original article	Safety and Effectiveness of Colonic Stenting for Ileocecal Valve Obstruction and Usefulness of Two-Step Strategy: Single-Center Retrospective Study 2025/01
13.	Original article	Importance of gamma-glutamyl transferase elevation in patients with Fontan-associated liver disease 2024/12
14.	Other	Pancreatic Cysts 2024/11
15.	Original article	Who benefits from long-term plastic stents after walled-off necrosis treatment: prix fixe for all or à la carte? 2024/11
16.	Review article	Disconnected pancreatic duct syndrome: diagnostic and therapeutic challenges and future directions 2024/10
17.	Other	The updated Asia-Pacific consensus statement on the role of endoscopic management in malignant hilar biliary obstruction 2024/09
18.	Original article	Dedicated Echoendoscope for Interventional Endoscopic Ultrasound: Comparison with a Conventional Echoendoscope 2024/05
Display 5 items
Display all(18)

■ Academic conference presentation

1.	The “Difficult” ERCP – Precut or EUS? （Speech，General） 2025/12/05
2.	CHARACTERISTICS AND CLINICAL COURSE OF FONTANASSOCIATED LIVER DISEASE(FALD) （Poster notice，General） 2025/11/07
3.	Technical tips to increase diagnostic yield of EUS-TA （Speech，General） 2025/10/25
4.	A multicenter comparative analysis of nasocystic tube placement versus no nasocystic tube placement for endoscopic ultrasound-guided drainage of a pancreatic pseudocyst: The WONDERFUL study group in Japan （Speech，General） 2025/09/05
5.	Three-dimensional Volume Estimates of Pancreatic Fluid Collections in Relation to Clinical Outcomes of Endoscopic Ultrasound-guided Treatment. （Speech，General） 2025/09/05
6.	（Luncheon Seminar5）Interventional EUS: Future and Past （Speech） 2025/09/05
7.	Optimizing Safety and Effecacy in Endoscopic Papillectomy: Practical Techniques and pearls （Speech，General） 2025/08/01
8.	EUS guided intervention in postoperative pancreatic leaks and fistulas （Speech，General） 2025/06/21
9.	EUS-BD for right IHDs(CDS & Bridging) （Speech，General） 2025/06/21
10.	Tips for EUS-guided pancreaticgastrostomy （Speech，General） 2025/06/21
11.	（シンポジウム1　Current status and future perspectives of AI in gastrointestinal endoscopy）Development of Computer-Aided Detection for Pancreatic Tumors and Parenchyma During Endoscopic Ultrasonography （Speech，Panelist at Symposium/Workshop (Other)） 2025/05/09
12.	ASSOCIATIONS BETWEEN COMPUTED TOMOGRAPHY-BASED 3-D VOLUME OF PANCREATIC FLUID COLLECTIONS AND CLINICAL OUTCOMES OF ENDOSCOPIC ULTRASOUND-GUIDED TREATMENT: THE WONDERFUL STUDY GROUP IN JAPAN （Poster notice，General） 2025/05/03
13.	DIAGNOSTIC UTILITY OF BILE IGG4 IN DIFFERENTIATING IGG4-ASSOCIATED SCLEROSING CHOLANGITIS FROM SIMILAR HEPATOBILIARY DISEASES: A MULTICENTER STUDY （Speech，General） 2025/05/03
14.	FATTY PANCREAS AND PANCREATIC CANCER RISK IN PATIENTS WITH INTRADUCTAL PAPILLARY MUCINOUS NEOPLASMS （Poster notice，General） 2025/05/03
15.	IMMEDIATE NECROSECTOMY VS. DRAINAGE-ORIENTED STEP-UP APPROACH AFTER ENDOSCOPIC ULTRASOUND-GUIDED DRAINAGE OF WALLED-OFF NECROSIS—SUBGROUP ANALYSES OF A MULTICENTER RANDOMISED CONTROLLED TRIAL (WONDER-01) （Speech，General） 2025/05/03
16.	PLASTIC STENTS MAY PROVIDE COMPARABLE OUTCOMES TO A LUMEN-APPOSING METALLIC STENT IN PATIENTS RECEIVING ENDOSCOPIC ULTRASOUND-GUIDED DRAINAGE: MULTICENTER ANLYSIS BY THE WONDERFUL STUDY GROUP IN JAPAN （Poster notice，General） 2025/05/03
17.	PLASTIC STENTS VS. LUMEN-APPOSING METAL STENT FOR ENDOSCOPIC ULTRASOUND-GUIDED DRAINAGE OF PANCREATIC PSUEDOCYSTS: A MULTICENTER, RANDOMISED CONTROLLED, NONINFERIORITY TRIAL (WONDER-02) （Poster notice，General） 2025/05/03
18.	RISK FACTORS FOR ENDOSCOPIC MANAGEMENTS OF PANCREATIC FLUID COLLECTIONS IN PATIENTS ON ANTITHROMBOTIC THERAPY: A MULTICENTER ANALYSIS FROM THE WONDERFUL STUDY GROUP IN JAPAN （Poster notice，General） 2025/05/03
19.	RISK FACTORS FOR PANCREATIC CANCER IN INDIVIDUALS WITH INTRADUCTAL PAPILLARY MUCINOUS NEOPLASMS AND NO HIGH-RISK STIGMATA DURING UP TO FIVE YEARS OF SURVEILLANCE: A PROSPECTIVE LONGITUDINAL COHORT STUDY （Poster notice，General） 2025/05/03
20.	VARIATIONS IN SUPPORTIVE TREATMENT STRATEGIES DURING ENDOSCOPIC MANAGEMENT OF PANCREATIC FLUID COLLECTIONS: NATIONWIDE QUESTIONNAIRE SURVEY BY THE WONDERFUL STUDY GROUP IN JAPAN （Poster notice，General） 2025/05/03
21.	（シンポジウム15　急性膵炎・慢性膵炎診療の現状と今後の展望）Questionnaire Survey on Endoscopic Treatment Strategies for Pancreatic Fluid Collections in Japan：the WONDERFUL study group （Speech，Panelist at Symposium/Workshop (Other)） 2025/04/24
22.	（APBA Symposium1　Pioneering Innovations and Evolving Paradigms in EUS）EUS-guided biliary drainage as a primary technique （Speech，Panelist at Symposium/Workshop (Other)） 2025/04/04
23.	Characteristics of patients with very late-onset ulcerative colitis: A single-center retrospective study （Poster notice，General） 2025/02/19
24.	(Interventional EUS)How to Choose Between ERCP and EUS-BD for Malignant Biliary Obstruction? （Speech，General） 2025/01/11
25.	（ERCP）Case2：Operator （Speech） 2025/01/11
26.	（[The 8th Joint Session　between KDDW-TDDWJDDW]Pancreatobiliary：Latest advances in endoscopic/EUS-guided diagnosis and treatment for pancreatobiliary tumor）EUS-guidedbiliary drainage for malignant biliary osdtruction （Speech，Panelist at Symposium/Workshop (Other)） 2024/11/14
27.	（Symposium 32：Endoscopic treatment of chronic pancreatitis）Update on managemant of pancreatis duct stones （Speech，Panelist at Symposium/Workshop (Other)） 2024/11/14
28.	（Session3：Optimizing the management of cholangiocarcinoma I）Advanced pre-operative endoscopic biliary drainage for cholangiocarcinoma （Speech，General） 2024/10/18
29.	（Session5：Roadmap to improved outcomes in pancreatic cancer management I）Advanced pre-operative endoscopic biliary drainage for pancreatic cancer （Speech，General） 2024/10/18
30.	（SessionVI　EUS-guided Drainage）How to reduce complications during biliopancreatic drainage （Speech，General） 2024/10/12
31.	Dedicate biliary plastic stent－inside stent/Q&A （Speech，General） 2024/07/20
32.	（Symposium401　Cutting edge of endoscopic management of malignant biliary strictures）Next step for inclusive result of ERCP guided transpapillary tissue sampling （Speech，Panelist at Symposium/Workshop (Other)） 2024/07/04
33.	（Symposium406　Debate session on EUS intervention (Session2)）Roux-en-Y anatomy after surgery: Balloon enteroscope assisted ERCP （Speech，Panelist at Symposium/Workshop (Other)） 2024/07/04
34.	（WEO International School of EUS(WISE) session Part1）EUS-guided Biliary Drainage,Current Status （Speech，General） 2024/07/04
Display 5 items
Display all(34)

■ Education

1.	2002/04～2008/03	〔Doctoral course〕〔Doctorial Course〕, Graduate School, Division of Medical Sciences, The University of Tokyo, Completed
2.	1992/04～1998/03	Faculty of Medicine, The University of Tokyo, Graduated