Faculty Information - NAKAI Yousuke

（Last updated : 2025-11-22 13:29:18）

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	Necrosectomy and its timing in relation to clinical outcomes of EUS-guided treatment of walled-off pancreatic necrosis: a multicenter study 2025/06
2.	Review article	Fatty Pancreas: Its Potential as a Risk Factor for Pancreatic Cancer and Clinical Implications 2025/05
3.	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
4.	Review article	Development of a Dedicated X-Ray Fluoroscopic Apparatus for Therapeutic Pancreatobiliary Endoscopy: A Review 2025/02
5.	Original article	Impact of ursodeoxycholic acid treatment on Fontan-associated liver disease 2025/02
6.	Other	Can Endoscopic Ultrasound-guided Ablation Prolong Disease-specific Survival In Pancreatic Cysts? 2025/01
7.	Original article	Controversies in endoscopic ultrasonography-guided management of walled-off necrosis 2025/01
8.	Original article	Safety and Effectiveness of Colonic Stenting for Ileocecal Valve Obstruction and Usefulness of Two-Step Strategy: Single-Center Retrospective Study 2025/01
9.	Original article	Importance of gamma-glutamyl transferase elevation in patients with Fontan-associated liver disease 2024/12
10.	Other	Pancreatic Cysts 2024/11
11.	Original article	Who benefits from long-term plastic stents after walled-off necrosis treatment: prix fixe for all or à la carte? 2024/11
12.	Review article	Disconnected pancreatic duct syndrome: diagnostic and therapeutic challenges and future directions 2024/10
13.	Other	The updated Asia-Pacific consensus statement on the role of endoscopic management in malignant hilar biliary obstruction 2024/09
14.	Original article	Dedicated Echoendoscope for Interventional Endoscopic Ultrasound: Comparison with a Conventional Echoendoscope 2024/05
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■ Academic conference presentation

1.	Technical tips to increase diagnostic yield of EUS-TA （Speech，General） 2025/10/25
2.	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
3.	Three-dimensional Volume Estimates of Pancreatic Fluid Collections in Relation to Clinical Outcomes of Endoscopic Ultrasound-guided Treatment. （Speech，General） 2025/09/05
4.	（Luncheon Seminar5）Interventional EUS: Future and Past （Speech） 2025/09/05
5.	EUS guided intervention in postoperative pancreatic leaks and fistulas （Speech，General） 2025/06/21
6.	EUS-BD for right IHDs(CDS & Bridging) （Speech，General） 2025/06/21
7.	Tips for EUS-guided pancreaticgastrostomy （Speech，General） 2025/06/21
8.	（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
9.	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
10.	DIAGNOSTIC UTILITY OF BILE IGG4 IN DIFFERENTIATING IGG4-ASSOCIATED SCLEROSING CHOLANGITIS FROM SIMILAR HEPATOBILIARY DISEASES: A MULTICENTER STUDY （Speech，General） 2025/05/03
11.	FATTY PANCREAS AND PANCREATIC CANCER RISK IN PATIENTS WITH INTRADUCTAL PAPILLARY MUCINOUS NEOPLASMS （Poster notice，General） 2025/05/03
12.	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
13.	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
14.	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
15.	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
16.	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
17.	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
18.	（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
19.	（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
20.	Characteristics of patients with very late-onset ulcerative colitis: A single-center retrospective study （Poster notice，General） 2025/02/19
21.	(Interventional EUS)How to Choose Between ERCP and EUS-BD for Malignant Biliary Obstruction? （Speech，General） 2025/01/11
22.	（ERCP）Case2：Operator （Speech） 2025/01/11
23.	（[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
24.	（Symposium 32：Endoscopic treatment of chronic pancreatitis）Update on managemant of pancreatis duct stones （Speech，Panelist at Symposium/Workshop (Other)） 2024/11/14
25.	（Session3：Optimizing the management of cholangiocarcinoma I）Advanced pre-operative endoscopic biliary drainage for cholangiocarcinoma （Speech，General） 2024/10/18
26.	（Session5：Roadmap to improved outcomes in pancreatic cancer management I）Advanced pre-operative endoscopic biliary drainage for pancreatic cancer （Speech，General） 2024/10/18
27.	（SessionVI　EUS-guided Drainage）How to reduce complications during biliopancreatic drainage （Speech，General） 2024/10/12
28.	Dedicate biliary plastic stent－inside stent/Q&A （Speech，General） 2024/07/20
29.	（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
30.	（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
31.	（WEO International School of EUS(WISE) session Part1）EUS-guided Biliary Drainage,Current Status （Speech，General） 2024/07/04
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■ 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