Colorado PROFILES, The Colorado Clinical and Translational Sciences Institute (CCTSI)
Keywords
Last Name
Institution

Atsushi Oba

TitleAssociate Professor
InstitutionUniversity of Colorado Denver - Anschutz Medical Campus
DepartmentSOM-SRG

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Sugiura K, Ono Y, Kobayashi K, Oba A, Ito H, Inoue Y, Takahashi Y. Impact of the stapler method on postoperative pancreatic fistula in robot-assisted pancreaticoduodenectomy: a retrospective study. Surg Endosc. 2025 Nov; 39(11):7822-7830. PMID: 40954376.
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    2. Ashitomi Y, Motoi F, Oba A, Sugiura T, Hashimoto D, Inoue K, Okada K, Takami H, Nakamura T, Takahashi R, Akahoshi K, Tanaka K, Ishikawa H, Omiya K, Ohgi K, Yamaki S, Mizuma M, Uemura K, Sugawara S, Hirano S, Satoi S. Favorable Response Defined by CA19-9 Reduction After Neoadjuvant Treatment for Pancreatic Cancer. Ann Surg Oncol. 2025 Sep 01. PMID: 40890542.
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    3. Kobayashi K, Oba A, Kiritani S, Ono Y, Osumi H, Sato T, Ito H, Shinozaki E, Yamaguchi T, Yamaguchi K, Akiyoshi T, Ishida N, Miyazaki N, Inoue Y, Takahashi Y. Assessment of Residual or Resected Disappearing Liver Metastases After Chemotherapy: The AROD Study. Ann Surg. 2025 Aug 29. PMID: 40880205.
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    4. Shimane G, Ono Y, Inoue Y, Ito H, Oba A, Kobayashi K, Takahashi Y. Anatomical evaluation of the perinephric vein as a surgical landmark in minimally invasive distal pancreatectomy for pancreatic cancer. Surg Endosc. 2025 Oct; 39(10):7014-7022. PMID: 40877623.
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    5. Inoue Y, Kobayashi K, Kato T, Kiritani S, Oba A, Ono Y, Ito H, Takahashi Y. Current Status and Future Perspectives of Superior Mesenteric Artery Dissection in Robotic Pancreaticoduodenectomy: A Scoping Review of Technical Variations in the Robotic Era. J Clin Med. 2025 Aug 28; 14(17). PMID: 40943843.
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    6. Shibata Y, Oba A, Shimane G, Miyata T, Tauchi J, Baba H, Maekawa A, Kobayashi K, Ono Y, Sasaki T, Ozaka M, Sasahira N, Ito H, Inoue Y, Takahashi Y. Prognostic role of peritoneal lavage cytology: Proposal for staging laparoscopy criteria in biliary tract cancer. Eur J Surg Oncol. 2025 Oct; 51(10):110369. PMID: 40784193.
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    7. Kato T, Ono Y, Kitazawa T, Kobayashi K, Oba A, Sato T, Ito H, Inoue Y, Saiura A, Takahashi Y. ASO Author Reflections: Diabetic and Nutritional Management After Total or Completion Pancreatectomy: Current Status and Future Perspectives. Ann Surg Oncol. 2025 Oct; 32(10):7465-7466. PMID: 40684015.
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    8. Sawa Y, Ono Y, Takamatsu M, Shimane G, Baba H, Ito R, Sugiura K, Shibata Y, Nakano K, Mukai T, Kobayashi K, Oba A, Inoue Y, Ito H, Akiyoshi T, Takahashi Y. Surgical Resection of a Solitary Metachronous Retrocaval Lymph Node Metastasis above the Renal Vein from Rectal Cancer. Surg Case Rep. 2025; 11(1). PMID: 40761477.
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    9. Kato T, Ono Y, Kitazawa T, Kobayashi K, Oba A, Sato T, Ito H, Inoue Y, Saiura A, Takahashi Y. Impact of Preoperative Diabetes on Insulin Management and Nutritional Status After Total or Completion Pancreatectomy. Ann Surg Oncol. 2025 Oct; 32(10):7422-7432. PMID: 40643710.
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    10. Oba A, Yamane M, Takahashi Y. Invited Editorial: Clinical Relevance of High-Grade Pancreatic Intraepithelial Neoplasia at the Pancreatic Transection Margin in Patients with Pancreatic Ductal Adenocarcinoma. Ann Surg Oncol. 2025 Oct; 32(10):7103-7105. PMID: 40536743.
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    11. Kiritani S, Ono Y, Sasaki T, Oba A, Sato T, Ito H, Inoue Y, Ozaka M, Sasahira N, Saiura A, Takahashi Y. Efficacy of preoperative endoscopic nasobiliary drainage tube placement for liver cancer adjacent to the hepatic hilum. Langenbecks Arch Surg. 2025 Jun 12; 410(1):188. PMID: 40500428.
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    12. Omiya K, Oba A, Sugiura K, Maekawa A, Mie T, Kobayashi K, Ono Y, Ito H, Inoue Y, Takahashi Y. ASO Author Reflections: Optimizing Treatment for Resectable Pancreatic Cancer: CA19-9 > 500 U/mL as a Biologic Indicator for Neoadjuvant Therapy. Ann Surg Oncol. 2025 Aug; 32(8):5434-5435. PMID: 40397341.
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    13. Omiya K, Oba A, Sugiura K, Maekawa A, Mie T, Kobayashi K, Ono Y, Sasaki T, Ozaka M, Sasahira N, Ito H, Inoue Y, Takahashi Y. Resectable Pancreatic Cancer with CA19-9 > 500 U/mL: A Biological Indicator for Survival Benefit with Intensive Neoadjuvant Chemotherapy. Ann Surg Oncol. 2025 Aug; 32(8):5411-5420. PMID: 40358779.
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    14. Stoop TF, Wu YHA, Oba A, Ali M, Feld IM, Al-Musawi MH, Jain A, Saiura A, Sauvanet A, Coppola A, Javed AA, Groot Koerkamp B, Miller BN, Hashimoto D, Caputo D, Kleive D, Sereni E, Kazemier G, Belfiori G, Ishida H, van Dam JL, Dembinski J, Akahoshi K, Roberts KJ, Tanaka K, Labori KJ, Falconi M, House MG, Sugimoto M, Tanabe M, Gotohda N, Chatzizacharias N, Krohn PS, Dokmak S, Rodriguez Franco S, Hirano S, Burgdorf SK, Crippa S, Satoi S, Nguyen TK, Yamamoto T, Nakamura T, Ushida Y, Bachu V, Burns WR, Inoue Y, Takahashi Y, Aslami Z, Schulick RD, He J, Messersmith W, Besselink MG, Burkhart RA, Wilmink JW, Del Chiaro M. Survival after neoadjuvant and induction FOLFIRINOX versus gemcitabine-nab-paclitaxel in patients with resected localised pancreatic adenocarcinoma: an international multicentre study. Br J Cancer. 2025 Jul; 133(1):76-84. PMID: 40328917.
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    15. Stoop TF, Javed AA, Oba A, Koerkamp BG, Seufferlein T, Wilmink JW, Besselink MG. Pancreatic cancer. Lancet. 2025 04 05; 405(10485):1182-1202. PMID: 40187844.
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    16. Baba H, Oba A, Inoue Y, Kobayashi K, Ono Y, Sato T, Ito H, Takahashi Y. ASO Author Reflections: Enhancing Safety in Minimally Invasive Left Pancreatectomy with Polyglycolic Acid Mesh Wrapping. Ann Surg Oncol. 2025 Jul; 32(7):5124-5125. PMID: 40178672.
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    17. Baba H, Oba A, Maekawa A, Kiritani S, Kobayashi H, Takahashi A, Omiya K, Kobayashi K, Ono Y, Sato T, Ito H, Inoue Y, Takahashi Y. Polyglycolic Acid Mesh and Fibrin Glue in Minimally Invasive Left Pancreatectomy: Video Technique and Single-Center Data. Ann Surg Oncol. 2025 Jul; 32(7):5102-5103. PMID: 40169483.
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    18. Ito R, Ono Y, Takeda Y, Shimane G, Sugiura K, Shibata Y, Sawa Y, Kobayashi K, Oba A, Ito H, Inoue Y, Saiura A, Takahashi Y. Multidirectional Pulley Maneuver Technique in Robotic Hepatectomy. Ann Surg Oncol. 2025 Jul; 32(7):5022-5023. PMID: 40123026.
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    19. Sawa Y, Inoue Y, Kobayashi K, Oba A, Ono Y, Ito H, Takahashi Y. A Robotic Pancreaticoduodenectomy Case Involving a Meandering Main Pancreatic Duct Coursing Posterior to a Replaced Common Hepatic Artery and in Front of the Portal Vein. Surg Case Rep. 2025; 11(1). PMID: 40144705.
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    20. Ono Y, Ito R, Kobayashi K, Oba A, Sato T, Ito H, Inoue Y, Takahashi Y. Technique of Circumferential Divestment of the Superior Mesenteric Artery for Locally Advanced Pancreatic Cancer. Ann Surg Oncol. 2025 Jun; 32(6):4417-4418. PMID: 40106108.
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    21. Ishida H, Stoop TF, Oba A, Bachellier P, Ban D, Endo I, Franklin O, Fujii T, Gulla A, Hackert T, Halimi A, Hirano S, Jang JY, Katz MHG, Maekawa A, Nealon WH, Perri G, Ramia JM, Rompen IF, Satoi S, Schulick RD, Shrikhande SV, Tsung A, Wolfgang CL, Besselink MG, Del Chiaro M. Global survey on surgeon preference and current practice for pancreatic neck and body cancer with portomesenteric venous involvement. HPB (Oxford). 2025 Jul; 27(7):910-921. PMID: 40204592.
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    22. Hirose Y, Oba A, Inoue Y, Maekawa A, Kobayashi K, Omiya K, Takahashi A, Ono Y, Sato T, Ito H, Mie T, Sasaki T, Ozaka M, Sasahira N, Wakai T, Takahashi Y. Arterial resection and divestment in pancreatic cancer surgery in the era of multidisciplinary treatment: decadal comparative study. BJS Open. 2025 Mar 04; 9(2). PMID: 40244877.
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    23. Yamamoto T, Shimokawa T, Hayashi M, Mizuma M, Hirano K, Oba A, Asano T, Miyato H, Yoshida M, Matsumoto I, Kawabata Y, Sakamoto K, Motoi F, Ishii S, Homma Y, Maehira H, Matsunaga Y, Ikemoto T, Nakamura M, Mataki Y, Notake T, Akahoshi K, Takami H, Yamaki S, Hashimoto D, Kimura Y, Hirano S, Inoue Y, Fujii T, Unno M, Kodera Y, Kitayama J, Satoi S. Clinical role of intraperitoneal chemotherapy in patients with pancreatic ductal adenocarcinoma concomitant with occult peritoneal dissemination: A multicenter retrospective study. Ann Gastroenterol Surg. 2025 Jul; 9(4):830-841. PMID: 40607298.
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    24. Jansson H, Oba A, Maekawa A, Villard C, Kobayashi K, Ono Y, Engstrand J, Kawano F, Ito H, Gilg S, Inoue Y, D'Souza MA, Takahashi Y. Western and Eastern experience in treating perihilar cholangiocarcinoma: retrospective bi-centre study. BJS Open. 2025 Mar 04; 9(2). PMID: 40200911.
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    25. Ono Y, Ito R, Kobayashi K, Oba A, Sato T, Ito H, Inoue Y, Takahashi Y. ASO Author Reflections: Advancing the Superior Mesenteric Arterial Divestment for Locally Advanced Pancreatic Cancer: New Standard Procedure and Future Prospectives. Ann Surg Oncol. 2025 Jun; 32(6):4435-4436. PMID: 40025322.
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    26. Stoop TF, Sugawara T, Oba A, Feld IM, van Roessel S, van Veldhuisen E, Wu YHA, Nishino J, Ali M, Alseidi A, Sauvanet A, Mirabella A, Sa Cunha A, Kokkola A, Groot Koerkamp B, Pietrasz D, Kleive D, Butturini G, Malleo G, van Laarhoven HWM, Frigerio I, Dembinski J, He J, Gagnière J, Kleeff J, Ramia JM, Roberts KJ, Labori KJ, Marino MV, Falconi M, B Mortensen M, Lesurtel M, Bonds M, Chatzizacharias N, Strobel O, Turrini O, Griffin O, Franklin O, Pfeiffer P, Schulick RD, Salvia R, de Wilde RF, Dokmak S, Rodriguez Franco S, Augustinus S, Burgdorf SK, Crippa S, Hackert T, Tarvainen T, Burns WR, Messersmith W, Wilmink JW, Burkhart RA, Del Chiaro M, Besselink MG. Adjuvant Chemotherapy After Resection of Localized Pancreatic Adenocarcinoma Following Preoperative FOLFIRINOX. JAMA Oncol. 2025 Mar 01; 11(3):276-287. PMID: 39847363.
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    27. Maekawa A, Sato T, Tsuchiya S, Kobayashi K, Oba A, Ono Y, Ito H, Inoue Y, Matsueda K, Takahashi Y. A Multimodal Approach Utilizing Balloon Occlusion for Postpancreatectomy Hemorrhage: A Case Report. Surg Case Rep. 2025; 11(1). PMID: 40040630.
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    28. Kiritani S, Inoue Y, Sato T, Sawa Y, Kobayashi K, Oba A, Ono Y, Ito H, Takahashi Y. A left-posterior approach to the superior mesenteric artery during robot-assisted pancreaticoduodenectomy. J Hepatobiliary Pancreat Sci. 2025 Apr; 32(4):317-326. PMID: 39981791.
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    29. Bolm L, Nebbia M, Stoop TF, Goetz MR, Conradi L, Raschzok N, Jansson H, Larsson P, Gerber S, Roldàn J, Michelakos T, Ten Winkel M, Kinny-Köster B, Rompen IF, Franklin O, Ziogas IA, Ishida H, Khomiak A, Hashimoto D, Groot VP, Wu YHA, Sugawara T, Oba A, Maekawa A, Oor JE, Morandi A, Stewart DB, Zyromski NJ. Building an international network of young surgeons across surgical specialties - Introducing the Young Surgeons Publications Committee. Surg Open Sci. 2025 Mar; 24:70-71. PMID: 40124855.
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    30. Hollenbach M, Heise C, Abou-Ali E, Gulla A, Auriemma F, Soares K, Leung G, Schattner MA, Jarnagin WR, Wang T, Caillol F, Giovannini M, Dahel Y, Hackert T, Paik WH, Zerbi A, Nappo G, Napoleon B, Arnelo U, Haraldsson E, Halimi A, Waldthaler A, Will U, Saadeh R, Masaryk V, van der Wiel SE, Bruno MJ, Perez-Cuadrado-Robles E, Deprez P, Sauvanet A, Bolm L, Keck T, Souche R, Fabre JM, Musquer N, Kähler G, Seyfried S, Petrone MC, Mariani A, Zaccari P, Belfiori G, Crippa S, Falconi M, Partelli S, Yilmaz B, Demir IE, Ceyhan GO, Satoi S, Regimbeau JM, Gagniére J, Repici A, Anderloni A, Vollmer C, Casciani F, Del Chiaro M, Oba A, Schulick RD, Berger A, Maggino L, Salvia R, Schemmer P, Wichmann D, Inoue Y, Dinis-Ribeiro M, Laranjo A, Libanio D, Kleemann T, Sandru V, Ilie M, Ahola R, Laukkarinen J, Schumacher B, Albers D, Cúrdia Gonçalves T, Barbier L, Salamé E, Weismüller TJ, Heling D, Alves A, Karam E, Regenet N, Dugic A, Muehldorfer S, Truant S, Caca K, Meier B, Miutescu BP, Tantau M, Birnbaum D, Miksch RC, Wedi E, Salzmann K, Bruzzi M, Lupinacci RM, David P, De Ponthaud C, Schmidt A, Regnér S, Gaujoux S. Endoscopic papillectomy versus surgical ampullectomy for adenomas and early cancers of the papilla: a retrospective Pancreas2000/European Pancreatic Club analysis. Gut. 2025 Feb 06; 74(3):397-409. PMID: 39642968.
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    31. Maekawa A, Omiya K, Oba A, Inoue Y, Hirose Y, Kobayashi K, Ono Y, Sato T, Sasaki T, Ozaka M, Matsueda K, Mise Y, Takamatsu M, Shigematsu Y, Ito H, Saiura A, Sasahira N, Takahashi Y. Clinical implications of disappearing pancreatic cancer liver metastases: Lessons from colorectal liver metastases. Eur J Surg Oncol. 2025 May; 51(5):109635. PMID: 39879814.
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    32. Oba A, Tanaka K, Inoue Y, Valente R, Rangelova E, Arnelo U, Ono Y, Sato T, Torphy RJ, Ito H, Löhr M, Takahashi Y, Schulick RD, Saiura A, Sparrelid E, Del Chiaro M. Pancreatectomies with vein resection: Two large institutions' experience of East and West. Pancreatology. 2025 Mar; 25(2):250-257. PMID: 39880760.
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    33. Stoop TF, Molnár A, Seelen LWF, Sugawara T, Scheepens JCM, Ali M, Javed AA, Halimi A, Oba A, Groot Koerkamp B, Andersson B, Williamsson C, Wolfgang CL, Ban D, Sparrelid E, Daams F, Kazemier G, van Santvoort HC, Rompen IF, Molenaar IQ, Habib JR, Beuk LPM, Geerdink NJ, de Wilde RF, Busch OR, Swartling O, Bereza-Carlson P, Ghorbani P, Kruize RL, Schulick RD, Franco SR, Miyata T, Franklin O, Inoue Y, Besselink MG, Del Chiaro M. Tangential Versus Segmental Portomesenteric Venous Resection During Pancreatoduodenectomy for Pancreatic Cancer: An International Multicenter Cohort Study on Surgical and Oncological Outcome. Ann Surg. 2025 Jan 22. PMID: 39846439.
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    34. Takahashi A, Ono Y, Kobayashi K, Oba A, Sato T, Ito H, Inoue Y, Saiura A, Takahashi Y. Impact of hepatospleno volume ratio on postoperative chronic liver failure after major hepatectomy for perihilar cholangiocarcinoma. Ann Gastroenterol Surg. 2025 May; 9(3):578-586. PMID: 40385333.
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    35. Irie S, Inoue Y, Oba A, Ono Y, Sato T, Mise Y, Ito H, Saiura A, Takahashi Y. Technical Guidelines for Safe Mesojejunum Dissection During Pancreaticoduodenectomy: Unveiling Critical Techniques in a Complex Procedure. Ann Surg Oncol. 2025 Mar; 32(3):1850-1857. PMID: 39617861.
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    36. Kobayashi K, Inoue Y, Oba A, Ono Y, Osumi H, Sato T, Ito H, Mise Y, Shinozaki E, Yamaguchi K, Saiura A, Takahashi Y. Strategies for Recurrent Colorectal Liver Metastases Based on Prognostic Factors and Resectability: Potential Benefit of Multidisciplinary Treatment. Ann Surg Oncol. 2025 Mar; 32(3):1729-1741. PMID: 39580378.
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    37. Hayashi K, Ono Y, Oba A, Ito H, Sato T, Inoue Y, Saiura A, Takahashi Y. Posthepatectomy Liver Failure in Patients with Splenomegaly Induced by Induction Chemotherapy for Colorectal Liver Metastases. J Gastrointest Cancer. 2024 Oct 31; 56(1):13. PMID: 39480572.
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    38. Sadamori H, Hasegawa K, Oba A, Kato Y, Soejima Y, Monden K, Umeda Y, Abe Y, Ko S, Saiura A, Ohtsuka M, Kubo S, Shirabe K, Nagano H, Fujiwara T, Nakamura M, Endo I. Short- and long-term outcomes of liver resection with hepatic vein reconstruction for liver tumors: A nationwide multicenter survey. J Hepatobiliary Pancreat Sci. 2024 Dec; 31(12):863-875. PMID: 39474884.
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    39. Baba H, Oba A, Tanaka K, Miura T, Ban D, Edanami M, Ishikawa Y, Ohgi K, Tanaka H, Shintakuya R, Ikenaga N, Ijichi T, Kiya Y, Muranushi R, Yamaki S, Miyazaki N, Takeuchi S, Aoki S, Mizui T, Tanaka M, Ueda H, Dei H, Takami H, Okada K, Nakata K, Mataki Y, Osakabe H, Shibuya K, Hashimoto D, Inoue Y, Hirano S, Unno M, Esaki M, Kitago M, Akahoshi K, Sugiura T, Ebata T, Uemura K, Nakamura M, Otsuka T, Nagakawa Y, Fujii T, Satoi S, Takahashi Y. The efficacy of wrapping with polyglycolic acid mesh and fibrin glue in preventing clinically relevant pancreatic fistula after minimally invasive distal pancreatectomy (WRAP Study): study protocol for a multicenter randomized controlled trial in Japan. BMC Surg. 2024 Oct 16; 24(1):314. PMID: 39415231.
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    40. Hirose Y, Oba A, Takamatsu M, Hamada T, Takeda T, Suzuki T, Maekawa A, Kitano Y, Sato S, Kobayashi K, Omiya K, Ono Y, Sato T, Ito H, Sasaki T, Ozaka M, Takeuchi K, Sasahira N, Inoue Y, Wakai T, Takahashi Y. Caveolin-1 expression is a predictor of survival and recurrence patterns in resected pancreatic ductal adenocarcinoma. Pancreatology. 2024 Nov; 24(7):1021-1030. PMID: 39395872.
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    41. Kitano Y, Inoue Y, Kobayashi H, Kobayashi K, Oba A, Ono Y, Sato T, Ito H, Takahashi Y. Development of the multiple scope transition method in robotic pancreaticoduodenectomy. Surg Endosc. 2024 10; 38(10):6169-6176. PMID: 39227439.
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    42. Ando Y, Sakurai T, Ozaki K, Matsui S, Mukai T, Yamaguchi T, Akiyoshi T, Nakayama I, Shigematsu Y, Oba A, Chino A, Fukunaga Y. Integrating surgical intervention and watch-and-wait approach in dMMR metastatic rectal cancer with pembrolizumab: a case report. Surg Case Rep. 2024 Aug 26; 10(1):198. PMID: 39186128.
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    43. Omiya K, Inoue Y, Kobayashi K, Oba A, Ono Y, Sato T, Ito H, Takahashi Y. ASO Author Reflections: Advanced Techniques in Robot-Assisted Pancreaticoduodenectomy with Dissection of the Nerve Plexus Around the Superior Mesenteric Artery for Invasive Pancreatic Head Cancer. Ann Surg Oncol. 2024 Oct; 31(10):7076-7077. PMID: 39069581.
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    44. Omiya K, Inoue Y, Kobayashi K, Oba A, Ono Y, Sato T, Ito H, Takahashi Y. Robot-Assisted Pancreaticoduodenectomy with Hemicircumferential Dissection of Nerve Plexus Around the Superior Mesenteric Artery. Ann Surg Oncol. 2024 Oct; 31(10):7064-7065. PMID: 39008210.
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    45. Sato S, Inoue Y, Oba A, Ono Y, Sato T, Ito H, Takahashi Y. Scope transition and early arterial inflow control provide safe and comfortable dissection in robotic distal pancreatectomy. Langenbecks Arch Surg. 2024 Jun 03; 409(1):171. PMID: 38829557.
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    46. Stoop TF, Oba A, Wu YHA, Beaty LE, Colborn KL, Janssen BV, Al-Musawi MH, Franco SR, Sugawara T, Franklin O, Jain A, Saiura A, Sauvanet A, Coppola A, Javed AA, Groot Koerkamp B, Miller BN, Mack CE, Hashimoto D, Caputo D, Kleive D, Sereni E, Belfiori G, Ichida H, van Dam JL, Dembinski J, Akahoshi K, Roberts KJ, Tanaka K, Labori KJ, Falconi M, House MG, Sugimoto M, Tanabe M, Gotohda N, Krohn PS, Burkhart RA, Thakkar RG, Pande R, Dokmak S, Hirano S, Burgdorf SK, Crippa S, van Roessel S, Satoi S, White SA, Hackert T, Nguyen TK, Yamamoto T, Nakamura T, Bachu V, Burns WR, Inoue Y, Takahashi Y, Ushida Y, Aslami ZV, Verbeke CS, Fariña A, He J, Wilmink JW, Messersmith W, Verheij J, Kaplan J, Schulick RD, Besselink MG, Del Chiaro M. Pathological Complete Response in Patients With Resected Pancreatic Adenocarcinoma After Preoperative Chemotherapy. JAMA Netw Open. 2024 06 03; 7(6):e2417625. PMID: 38888920.
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    47. Miyashita M, Yoshioka R, Fukumura Y, Takamatsu M, Oba A, Ono Y, Inoue Y, Mise Y, Takahashi Y, Saiura A. Low incidence of pancreatic fistula and well-preserved endocrine function with non-reconstructed small remnant pancreas after pancreaticoduodenectomy. Ann Gastroenterol Surg. 2024 Sep; 8(5):860-867. PMID: 39229551.
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    48. Kiritani S, Ono Y, Takamatsu M, Yoshio S, Miyashita M, Oba A, Sato T, Ito H, Inoue Y, Saiura A, Takahashi Y. ASO Visual Abstract: Unique Biology of Pancreatic Ductal Adenocarcinoma Accompanied by Rapidly Impaired Diabetes: A Favorable Long-term Survival after Curative Resection. Ann Surg Oncol. 2024 Mar; 31(3):1944-1945. PMID: 37865945.
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    49. Kitano Y, Inoue Y, Sato Y, Oba A, Ono Y, Sato T, Ito H, Matsueda K, Baba H, Takahashi Y. Management of potential portal vein thrombus during laparoscopic right hemihepatectomy following portal vein embolization. Langenbecks Arch Surg. 2024 Feb 09; 409(1):56. PMID: 38332380.
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    50. Maekawa A, Oba A, Inoue Y, Omiya K, Ono Y, Sato T, Watanabe S, Uchino Y, Kobayashi K, Ito H, Sato Y, Tanabe M, Saiura A, Takahashi Y. ASO Visual Abstract: Technical Strategy for Pancreatic Body Cancers-A Raison d'Etre of Distal Pancreatectomy With Portal Resection. Ann Surg Oncol. 2024 Feb; 31(2):1371-1372. PMID: 38063986.
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    51. Ono Y, Inoue Y, Kobayashi K, Sato S, Kitano Y, Oba A, Sato T, Ito H, Takahashi Y. Laparoscopic Portal Vein Ligation and Embolization During First-Stage Hepatectomy for Initially Unresectable Colorectal Liver Metastases. Ann Surg Oncol. 2024 May; 31(5):3069-3070. PMID: 38291303.
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    52. Omiya K, Maekawa A, Oba A, Inoue Y, Hirose Y, Kobayashi K, Ono Y, Sato T, Ichinose J, Sasaki T, Ozaka M, Wu YHA, Hiratsuka M, Matsueda K, Mun M, Sasahira N, Ito H, Saiura A, Takahashi Y. A proposal of ABCD metastasectomy criteria for synchronous/metachronous metastatic pancreatic cancer in the era of multidisciplinary treatment. Br J Surg. 2024 01 03; 111(1). PMID: 38215237.
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    53. Takeda T, Sasaki T, Ichinose J, Inoue Y, Okamoto T, Mie T, Furukawa T, Kasuga A, Oba A, Matsuura Y, Nakao M, Ozaka M, Mun M, Takahashi Y, Sasahira N. Outcomes of lung oligometastasis in pancreatic cancer. Jpn J Clin Oncol. 2023 Dec 07; 53(12):1144-1152. PMID: 37609670.
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    54. Maekawa A, Oba A, Omiya K, Inoue Y, Takahashi Y. ASO Author Reflections: Surgical Strategies for Pancreatic Body Cancers with Portal Vein Involvement: Distal Pancreatectomy or Pancreaticoduodenectomy? Ann Surg Oncol. 2024 02; 31(2):1366-1367. PMID: 38032464.
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    55. Maekawa A, Oba A, Inoue Y, Omiya K, Ono Y, Sato T, Watanabe S, Uchino Y, Kobayashi K, Ito H, Sato Y, Tanabe M, Saiura A, Takahashi Y. Technical Strategy for Pancreatic Body Cancers: A Raison d'etre of Distal Pancreatectomy with Portal Resection. Ann Surg Oncol. 2024 Feb; 31(2):1347-1357. PMID: 37952022.
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    120. Inoue Y, Saiura A, Oba A, Ono Y, Mise Y, Ito H, Sasaki T, Ozaka M, Sasahira N, Takahashi Y. Neoadjuvant gemcitabine and nab-paclitaxel for borderline resectable pancreatic cancers: Intention-to-treat analysis compared with upfront surgery. J Hepatobiliary Pancreat Sci. 2021 Feb; 28(2):143-155. PMID: 33058515.
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    121. Raptis DA, Sánchez-Velázquez P, Machairas N, Sauvanet A, Rueda de Leon A, Oba A, Groot Koerkamp B, Lovasik B, Chan C, Yeo CJ, Bassi C, Ferrone CR, Kooby D, Moskal D, Tamburrino D, Yoon DS, Barroso E, de Santibañes E, Kauffmann EF, Vigia E, Robin F, Casciani F, Burdío F, Belfiori G, Malleo G, Lavu H, Hartog H, Hwang HK, Han HS, Poves I, Rosado ID, Park JS, Lillemoe KD, Roberts KJ, Sulpice L, Besselink MG, Abuawwad M, Del Chiaro M, de Santibañes M, Falconi M, D'Silva M, Silva M, Abu Hilal M, Qadan M, Sell NM, Beghdadi N, Napoli N, Busch ORC, Mazza O, Muiesan P, Müller PC, Ravikumar R, Schulick R, Powell-Brett S, Abbas SH, Mackay TM, Stoop TF, Gallagher TK, Boggi U, van Eijck C, Clavien PA, Conlon KCP, Fusai GK. Defining Benchmark Outcomes for Pancreatoduodenectomy With Portomesenteric Venous Resection. Ann Surg. 2020 11; 272(5):731-737. PMID: 32889866.
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    122. Croce C, Mungo B, Oba A, Schulick RD, Del Chiaro M. ASO Author Reflections: Which Patients with Invasive Intraductal Papillary Mucinous Neoplasm Can Benefit from Adjuvant Therapy? Ann Surg Oncol. 2020 Dec; 27(Suppl 3):873-874. PMID: 32893319.
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    123. Mungo B, Croce C, Oba A, Ahrendt S, Gleisner A, Friedman C, Schulick RD, Del Chiaro M. Controversial Role of Adjuvant Therapy in Node-Negative Invasive Intraductal Papillary Mucinous Neoplasm. Ann Surg Oncol. 2021 Mar; 28(3):1533-1542. PMID: 32743713.
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    124. Oba A, Stoop TF, Löhr M, Hackert T, Zyromski N, Nealon WH, Unno M, Schulick RD, Al-Musawi MH, Wu W, Zhao Y, Satoi S, Wolfgang CL, Abu Hilal M, Besselink MG, Del Chiaro M. Global Survey on Pancreatic Surgery During the COVID-19 Pandemic. Ann Surg. 2020 08; 272(2):e87-e93. PMID: 32675507.
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    125. Wu YHA, Samuels JM, Harnke B, Negrini D, Al-Musawi MH, Meguid C, Ahrendt S, Schulick RD, Del Chiaro M, Oba A. Multifocal/diffuse pancreatic serous cystic neoplasms: Systematic review with a new case. Pancreatology. 2020 Jul; 20(5):902-909. PMID: 32418758.
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    126. Kawakatsu S, Ishizawa T, Fujimoto Y, Oba A, Mise Y, Inoue Y, Ito H, Takahashi Y, Ueno M, Saiura A. Impact on operative outcomes of laparoscopic simultaneous resection of colorectal cancer and synchronous liver metastases. Asian J Endosc Surg. 2021 Jan; 14(1):34-43. PMID: 32246587.
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    127. Oba A, Ho F, Bao QR, Al-Musawi MH, Schulick RD, Del Chiaro M. Neoadjuvant Treatment in Pancreatic Cancer. Front Oncol. 2020; 10:245. PMID: 32185128.
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    128. Oba A, Bao QR, Barnett CC, Al-Musawi MH, Croce C, Schulick RD, Del Chiaro M. Vascular Resections for Pancreatic Ductal Adenocarcinoma: Vascular Resections for PDAC. Scand J Surg. 2020 Mar; 109(1):18-28. PMID: 31960765.
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    129. Oba A, Inoue Y, Ono Y, Irie S, Sato T, Mise Y, Ito H, Takahashi Y, Saiura A. Radiologically occult metastatic pancreatic cancer: how can we avoid unbeneficial resection? Langenbecks Arch Surg. 2020 Feb; 405(1):35-41. PMID: 31781919.
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    130. Oba A, Inoue Y, Sato T, Ono Y, Mise Y, Ito H, Ishizawa T, Takahashi Y, Saiura A. Impact of indocyanine green-fluorescence imaging on distal pancreatectomy with celiac axis resection combined with reconstruction of the left gastric artery. HPB (Oxford). 2019 05; 21(5):619-625. PMID: 30401519.
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    131. Akahoshi K, Ban D, Kuboki R, Oba A, Ono H, Mitsunori Y, Kudo A, Tanaka S, Tanabe M. Orotate phosphoribosyltransferase as a predictor of benefit from S-1 adjuvant chemotherapy for cholangiocarcinoma patients. J Gastroenterol Hepatol. 2019 Jun; 34(6):1108-1115. PMID: 30242888.
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    132. Inoue Y, Saiura A, Oba A, Kawakatsu S, Ono Y, Sato T, Mise Y, Ishizawa T, Takahashi Y, Ito H. Optimal Extent of Superior Mesenteric Artery Dissection during Pancreaticoduodenectomy for Pancreatic Cancer: Balancing Surgical and Oncological Safety. J Gastrointest Surg. 2019 07; 23(7):1373-1383. PMID: 30306451.
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    133. Oba A, Mise Y, Ito H, Hiratsuka M, Inoue Y, Ishizawa T, Arita J, Matsueda K, Takahashi Y, Saiura A. Clinical implications of disappearing colorectal liver metastases have changed in the era of hepatocyte-specific MRI and contrast-enhanced intraoperative ultrasonography. HPB (Oxford). 2018 08; 20(8):708-714. PMID: 29534862.
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    134. Oba A, Kudo A, Akahoshi K, Kishino M, Akashi T, Katsuta E, Iwao Y, Ono H, Mitsunori Y, Ban D, Tanaka S, Eishi Y, Tateishi U, Tanabe M. A simple morphological classification to estimate the malignant potential of pancreatic neuroendocrine tumors. J Gastroenterol. 2017 10; 52(10):1140-1146. PMID: 28488114.
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    135. Oba A, Shimada S, Akiyama Y, Nishikawaji T, Mogushi K, Ito H, Matsumura S, Aihara A, Mitsunori Y, Ban D, Ochiai T, Kudo A, Asahara H, Kaida A, Miura M, Tanabe M, Tanaka S. ARID2 modulates DNA damage response in human hepatocellular carcinoma cells. J Hepatol. 2017 05; 66(5):942-951. PMID: 28238438.
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    136. Oba A, Ban D, Kirimura S, Akahoshi K, Mitsunori Y, Matsumura S, Ochiai T, Kudo A, Tanaka S, Minoru T. Clinical application of the biomarkers for the selection of adjuvant chemotherapy in pancreatic ductal adenocarcinoma. J Hepatobiliary Pancreat Sci. 2016 Aug; 23(8):480-8. PMID: 27247050.
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    137. Oba A, Takahashi S, Kato Y, Gotohda N, Kinoshita T, Shibasaki H, Ikeda M, Konishi M. Usefulness of resection for hepatocellular carcinoma with macroscopic bile duct tumor thrombus. Anticancer Res. 2014 Aug; 34(8):4367-72. PMID: 25075073.
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