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専任講師

岡林 剛史

岡林 剛史
良性疾患から悪性疾患まで小腸・大腸に対する外科治療を広く行っています。幅広く柔軟に対応できることがわれわれの持ち味です。
大学病院というと権威的で堅苦しい印象があるかと思いますが、難しい医学用語をなるべく使わずに平易な説明を普段から心掛けております。どうぞお気軽にご相談ください。

  • 日本外科学会専門医・指導医
  • 日本消化器外科学会専門医・指導医
  • 日本内視鏡外科学会技術認定医(大腸)
  • 日本大腸肛門病学会専門医

経歴

1999年 慶應義塾大学医学部　卒業
1999年 慶應義塾大学医学部　外科学教室　入局
2000年 浜松赤十字病院　外科
2001年 平塚市民病院　外科
2002年 慶應義塾大学医学部　一般・消化器外科
2006年 平塚市民病院　外科
2008年 慶應義塾大学医学部　一般・消化器外科　助教
2010年 英国　Imperial College London, Research fellow
2012年 慶應義塾大学医学部　一般・消化器外科　助教
2018年 慶應義塾大学医学部　一般・消化器外科　専任講師（学部内）

主たる研究内容

  • 肥満と大腸疾患の関係
  • 大腸疾患に対する低侵襲手術

資格

  • 日本外科学会専門医・指導医
  • 日本消化器外科学会専門医・指導医
  • 日本内視鏡外科学会技術認定医(大腸)・評議員
  • 日本大腸肛門病学会専門医
  • 消化器がん外科治療認定医
  • 日本がん治療認定医機構がん治療認定医
  • ロボット手術(ダヴィンチ)トレーニングコース修了

所属学会

  • 本外科学会
  • 日本消化器外科学会
  • 日本内視鏡外科学会
  • 日本大腸肛門病学会
  • 日本消化器病学会
  • 日本消化器癌発生学会
  • 日本外科感染症学会
  • 日本癌治療学会
  • 日本臨床腫瘍学会

受賞歴

2010年　第12回前田賞

助成金

2017年 文部科学省科学研究費　基盤研究(C)
「肥満関連大腸癌の発癌過程におけるADAM17の役割」
2013年 文部科学省科学研究費　基盤研究(B)　代表者：北川雄光　研究分担者：岡林
「大腸癌に対する血管新生阻害剤の新規作用機序の解明とこれに基づく効果予測法の開発」
2009年 文部科学省科学研究費　若手研究(B)
「Gene Signatureを用いた新しい分子標的薬の感受性予測法の確立」

代表論文

  • 1. Uchino M, Ikeuchi H, Noguchi T, Okabayashi K, Futami K, Tanaka S, Ohge H, Watanabe K, Itabashi M, Okamoto K, Okita Y, Mizushima T, Mizuuchi Y, Yamada K, Shimada Y, Sato Y, Kimura H, Takahashi K, Hida K, Kinugasa Y, Okuda J, Daito K, Koyama F, Ueno H, Yamamoto T, Hanai T, Kono T, Kobayashi H, Ajioka Y, Sugihara K, Ishihara S; Study Group for Inflammatory Bowel Disease Associated Intestinal Cancers of the Japanese Society for Cancer of the Colon and Rectum. Histological differentiation between sporadic and colitis-associated intestinal cancer in a nationwide study: A propensity-score-matched analysis. J Gastroenterol Hepatol. 2024 May;39(5):893-901.
  • 2. Ono N, Seishima R, Shigeta K, Okabayashi K, Imai H, Fujii S, Oaki Y. High-Sensitive Spatiotemporal Distribution Imaging of Compression Stresses Based on Time-Evolutional Responsiveness. Small. 2024 Mar 15.
  • 3. Tsunoda J, Shigeta K, Mizuno S, Seishima R, Okabayashi K, Kitagawa Y. Postoperative platelet count is a prognostic biomarker of surgical recurrence in Crohn's disease. J Gastrointest Surg. 2024 Mar;28(3):279-281.
  • 4. Nakamura K, Seishima R, Matsui S, Shigeta K, Okabayashi K, Kitagawa Y. Preoperative serum cholinesterase as a prognostic factor in patients with colorectal cancer. Annals of Gastroent Surgery. 2024.
  • 5. Monno M, Ogiri M, Seishima R, Suzuki Y, Hattori K, Matsui S, Shigeta K, Okabayashi K, Kitagawa Y. POFUT1 and PLAGL2 are characteristic markers of mucinous colorectal cancer associated with MUC2 expression. Cell Biochem Funct. 2024;42(2).
  • 6. Tsunoda J, Shigeta K, Seishima R, Okabayashi K, Kitagawa Y. Efficacy of transanal drainage tube placement in preventing anastomotic leakage after ileal pouch-anal anastomosis in patients with ulcerative colitis. Surg Endosc. 2024 Feb;38(2):837-845.
  • 7. Study Group for Inflammatory Bowel Disease-Associated Intestinal Cancers of the Japanese Society for Cancer of the Colon and Rectum. Prognostic impact of tumour location in stage II/III ulcerative colitis-associated colon cancer: subgroup analysis of a nationwide multicentre retrospective study in Japan. Br J Surg. 2023 Nov 25.
  • 8. Kato H, Seishima R, Matsui S, Shigeta K, Okabayashi K, Kitagawa Y. Characteristic Changes of Ulcerative Colitis-Associated Neoplasm Patients in the Era of Biologics: a 20-Year Single Institution Experience of Surgical Cases. J Gastrointest Surg. 2023 Nov 8.
  • 9. Ogino T, Mizushima T, Fujii M, Sekido Y, Eguchi H, Nezu R, Ikeuchi H, Motoi U, Futami K, Okamoto K, Nagahara H, Watanabe K, Okabayashi K, Yamada K, Ohge H, Tanaka S, Mizuuchi Y, Ohkita Y, Sato Y, Ueno H, Kono T, Itabashi M, Kimura H, Hida K, Kinugasa Y, Takahashi K, Koyama F, Hanai T, Maeda K, Noake T, Shimada Y, Yamamoto T, Arakaki J, Mastuda K, Okuda J, Sunami E, Akagi Y, Kastumata K, Uehara K, Yamada T, Sasaki S, Ishihara S, Ajioka Y, Sugihara K; Study Group for Inflammatory Bowel Disease Associated Intestinal Cancers by the Japanese Society for Cancer of the Colon and Rectum. Crohn's Disease-Associated Anorectal Cancer Has a Poor Prognosis With High Local Recurrence: A Subanalysis of the Nationwide Japanese Study. Am J Gastroenterol. 2023 Sep 1;118(9):1626-1637.
  • 10. Okui J, Shigeta K, Kato Y, Mizuno S, Sugiura K, Seo Y, Nakadai J, Baba H, Kikuchi H, Hirata A, Makino A, Kondo T, Matsui S, Seishima R, Okabayashi K, Obara H, Sato Y, Kitagawa Y. Delayed-Onset Organ/Space Surgical Site Infection Worsens Prognosis in High-Risk Stage II and III Colorectal Cancer. J Gastrointest Surg. 2023 Sep 22.
  • 11. Kato H, Seishima R, Nakamura K, Matsui S, Shigeta K, Okabayashi K, Kitagawa Y. The Prognostic Nutritional Index is a Predictive Marker for Postoperative Complications in Patients with Late-Onset Ulcerative Colitis. World J Surg. 2023 Jul 20.
  • 12. Sakamoto K, Okabayashi K, Matsumoto S, Matsui S, Seishima R, Shigeta K, Kitagawa Y. Drainage pattern of the splenic flexure vein and its accompanying arteries using three-dimensional computed tomography angiography: a single-centre study of 600 patients. Colorectal Dis. 2023 May 23.
  • 13. Ogino T, Mizushima T, Fujii M, Sekido Y, Eguchi H, Nezu R, Ikeuchi H, Motoi U, Futami K, Okamoto K, Nagahara H, Watanabe K, Okabayashi K, Yamada K, Ohge H, Tanaka S, Mizuuchi Y, Ohkita Y, Sato Y, Ueno H, Kono T, Itabashi M, Kimura H, Hida K, Kinugasa Y, Takahashi K, Koyama F, Hanai T, Maeda K, Noake T, Shimada Y, Yamamoto T, Arakaki J, Mastuda K, Okuda J, Sunami E, Akagi Y, Kastumata K, Uehara K, Yamada T, Sasaki S, Ishihara S, Ajioka Y, Sugihara K; Study Group for Inflammatory Bowel Disease Associated Intestinal Cancers by the Japanese Society for Cancer of the Colon and Rectum. Crohn's Disease-Associated Anorectal Cancer Has a Poor Prognosis With High Local Recurrence: A Subanalysis of the Nationwide Japanese Study. Am J Gastroenterol. 2023 Apr 24. 
  • 14. Sugiura K, Seo Y, Tajima Y, Kikuchi H, Hirata A, Nakadai J, Baba H, Kondo T, Makino A, Kato Y, Matsui S, Seishima R, Shigeta K, Okabayashi K, Kitagawa Y. Prognostic Impact of Main Lymph Node Metastasis in Patients with Colon Cancer. World J Surg. 2023 Jan 23.
  • 15. Sasaki T, Shigeta K, Matsui S, Seishima R, Okabayashi K, Kitagawa Y. Mesenteric location of lymph node metastasis for colorectal cancer. ANZ J Surg. 2023.
  • 16. Seishima R, Okabayashi K, Ikeuchi H, Uchino M, Futami K, Noguchi T, Ohge H, Iseki Y, Watanabe K, Itabashi M, Okamoto K, Toiyama Y, Ogino T, Nakamura M, Yamada K, Wakai T, Sato Y, Kimura H, Takahashi K, Hida K, Kinugasa Y, Ishida F, Okuda J, Daito K, Koyama F, Ueno H, Yamamoto T, Yamamoto S, Hanai T, Maemoto A, Arakaki J, Komori K, Akagi Y, Shida D, Yamaguchi S, Matsuda K, Maeda K, Noake T, Nezu R, Sasaki S, Hasegawa J, Sunami E, Kanemitsu Y, Katsumata K, Uehara K, Kiyomatsu T, Suto T, Kazama S, Yamada T, Goi T, Ishihara S, Ajioka Y, Sugihara K. Effect of Biologics on the Risk of Advanced-Stage Inflammatory Bowel Disease-Associated Intestinal Cancer: A Nationwide Study. Am J Gastroenterol. 2023.
  • 17. Sasaki T, Shigeta K, Kitahara S, Suzuki Y, Matsui S, Seishima R, Okabayashi K, Duda DG, Kitagawa Y. Inhibition of STAT3 Promotes Effector T Cell Infiltration But also Immunosuppression in the HCC Tumor Microenvironment. Anticancer Res. 2022 Nov;42(11):5205-5215.
  • 18. Noguchi T, Ishihara S, Uchino M, Ikeuchi H, Okabayashi K, Futami K, Tanaka S, Ohge H, Nagahara H, Watanabe K, Itabashi M, Okamoto K, Okita Y, Mizushima T, Mizuuchi Y, Yamada K, Shimada Y, Sato Y, Kimura H, Takahashi K, Hida K, Kinugasa Y, Okuda J, Daito K, Koyama F, Ueno H, Yamamoto T, Hanai T, Maemoto A, Oba K, Ajioka Y, Sugihara K. Clinical features and oncological outcomes of intestinal cancers associated with ulcerative colitis and Crohn's disease. J Gastroenterol. 2022 Oct 2.
  • 19. Suzuki Y, Okabayashi K, Hasegawa H, Tsuruta M, Seishima R, Tokuda T, Kitagawa Y. Role of EphB2/ephrin-B1 signalling in the development and progression of obesity-associated colorectal cancer. Oncol Lett. 2022 Jul 19;24(3):316.
  • 20. Sakamoto K, Okabayashi K, Matsui S, Seishima R, Shigeta K, Kitagawa Y. Association of Tumor Pathological Response with the Use of Metformin During Neoadjuvant Chemoradiotherapy in Rectal and Esophageal/Gastroesophageal Cancer Patients: a Systematic Review and Meta-analysis. J Gastrointest Surg. 2022 Jul.
  • 21. Ogiri M, Seishima R, Nakamura K, Aimono E, Matsui S, Shigeta K, Chiyoda T, Tanishima S, Okabayashi K, Nishihara H, Kitagawa Y. Real-world application of next-generation sequencing-based test for surgically resectable colorectal cancer in clinical practice. Future Oncol. 2022 Jul.
  • 22. Tejedor P, Francis N, Jayne D, Hohenberger W, Khan J; on behalf the CME Project Working Group. Consensus statements on complete mesocolic excision for right-sided colon cancer-technical steps and training implications. Surg Endosc. 2022 Jul.
  • 23. REACCT Collaborative. Impact of microsatellite status in early-onset colonic cancer. Br J Surg. 2022 Jun;109(7):632-636.
  • 24. REACCT Collaborative. Post-Operative Functional Outcomes in Early Age Onset Rectal Cancer. Front Oncol. 2022 May.
  • 25. Sugiura K, Okabayashi K, Seishima R, Ishida T, Shigeta K, Tsuruta M, Hasegawa H, Kitagawa Y. Metformin inhibits the development and metastasis of colorectal cancer. Med Oncol. 2022 Jul ;39(9):136.
  • 26. Kato Y, Shigeta K, Tajima Y, Kikuchi H, Hirata A, Nakadai J, Sugiura K, Seo Y, Kondo T, Okui J, Matsui S, Seishima R, Okabayashi K, Kitagawa Y. Comprehensive risk score of the E-PASS as a prognostic indicator for patients after elective and emergency curative colorectal cancer surgery: A multicenter retrospective study. 2022 Apr 18;101.
    • 27. Nakamura K, Seishima R, Emoto K, Kawahara T, Matsui S, Shigeta K, Okabayashi K, Hosoe N, Kitagawa Y. The development of colon adenocarcinoma on a ganglioneuroma in a patient with nonhereditary disease. Am JGastroenterol. 2022.
    • 28. Ando T, Tai-Nagara I, Sugiura Y, Kusumoto D, Okabayashi K, Kido Y, Sato K, Saya H, Navankasattusas S, Li DY, Suematsu M, Kitagawa Y, Seiradake E, Yamagishi S, Kubota Y. Tumor-specific interendothelial adhesion mediated by FLRT2 facilitates cancer aggressiveness. J Clin Invest. 2022 ;132(6).
    • 29. Akiyoshi T, Shinozaki E, Taguchi S, Chino A, Hiratsuka M, Tominaga T, Nonaka T, Toda S, Matoba S, Matsui S, Okabayashi K, Mukai T, Hiyoshi Y, Yamaguchi T, Nagasaki T, Yamaguchi K, Ueno M, Kuroyanagi H, Fukunaga Y, Ishizuka N, Konishi T; for NOMINATE Collaborative Group. Non-operative management after chemoradiotherapy plus consolidation or sandwich (induction with bevacizumab and consolidation) chemotherapy in patients with locally advanced rectal cancer: a multicentre, randomised phase II trial (NOMINATE trial). BMJ Open. 2022;12(3).
    • 30. Mizuno S, Okabayashi K, Ikebata A, Matsui S, Seishima R, Shigeta K, Kitagawa Y. Prediction of pouchitis after ileal pouch-anal anastomosis in patients with ulcerative colitis using artificial intelligence and deep learning. Tech Coloproctol. 2022.
    • 31. Nakamura K, Seishima R, Matsui S, Shigeta K, Okabayashi K, Kitagawa Y. The prognostic impact of preoperative mean corpuscular volume in colorectal cancer. Jpn J Clin Oncol. 2022.
    • 32. REACCT Collaborative. Microsatellite instability in young patients with rectal cancer: molecular findings and treatment response. Br J Surg. 2022 Feb 24;109(3):251-255.
    • 33. Mizuno S, Seishima R, Yamasaki J, Hattori K, Ogiri M, Matsui S, Shigeta K, Okabayashi K, Nagano O, Li L, Kitagawa Y. Angiopoietin-like 4 promotes glucose metabolism by regulating glucose transporter expression in colorectal cancer. J Cancer Res Clin Oncol. 2022.
    • 34. Tsunoda J, Shigeta K, Matsui S, Seishima R, Okabayashi K, Kitagawa Y. Neutrophil-to-Lymphocyte Ratio is a Useful Biomarker for Predicting Postoperative Complications in Crohn's Disease. J Gastrointest Surg. 2022.
    • 35. Ando T, Tai-Nagara I, Sugiura Y, Kusumoto D, Okabayashi K, Kido Y, Sato K, Saya H, Navankasattusas S, Li DY, Suematsu M, Kitagawa Y, Seiradake E, Yamagishi S, Kubota Y. Tumor-specific inter-endothelial adhesion mediated by FLRT2 facilitates cancer aggressiveness. J Clin Invest. 2022.
    • 36. Okui J, Obara H, Shimane G, Sato Y, Kawakubo H, Kitago M, Okabayashi K, Kitagawa Y. Severity of early diagnosed organ/space surgical site infection in elective gastrointestinal and hepatopancreatobiliary surgery. Ann Gastroenterol Surg. 2021 Dec;6(3):445-453.
    • 37. Morita S, Tsuruta M, Okabayashi K, Shigeta K, Seishima R, Monno M, Itano O, Kitagawa Y. Evaluation of abdominal aortic calcification by plain CT predicts anastomotic leakage in laparoscopic surgery for colorectal cancer. Jpn J Clin Oncol. 2021.
    • 38. Suzumura H, Tsuruta M, Okabayashi K, Shigeta K, Seishima R, Ishida T, Shimada T, Asada Y, Koishikawa K, Akimoto S, Itano O, Hasegawa H, Kitagawa Y. BAF57 Is a Potential Determinant of Colorectal Cancer Malignancy. Anticancer Res. 2021;41(11):5445-5452.
    • 39. Sugimoto S, Iwao Y, Shimoda M, Takabayashi K, Sato T, Kanai T, Keio IBD Collaborators. Epithelium Replacement Contributes to Field Expansion of Squamous Epithelium and Ulcerative Colitis-Associated Neoplasia. Gastroenterology. 2021.
    • 40. REACCT Collaborative. Characteristics of Early-Onset vs Late-Onset Colorectal Cancer: A Review. JAMA Surg. 2021;156(9):865-874.
    • 41. Ikebata A, Okabayashi K, Tsuruta M, Shigeta K, Seishima R, Shimoda M, Naganuma M, Kitagawa Y. Colectomy risk score predicts pouchitis in patients with ulcerative colitis. Updates Surg. 2021.
    • 42. Matsuoka S, Kondo T, Seishima R, Okabayashi K, Tsuruta M, Shigeta K, Ishida T, Hasegawa H, Kitagawa Y. Surgical glove perforation during laparoscopic colorectal procedures . Surg Endosc. 2021;11:1-6.
    • 43. Sasaki T, Shigeta K, Okabayashi K, Tsuruta M, Seishima R, Matsui S, Kitagawa Y. Horizontal spread of pericolic lymph node metastasis as a prognostic factor for recurrence in Stage Ⅲ colorectal cancer. Colorectal Dis. 2021;23(6):1370-1378.
    • 44. Morita S, Tsuruta M, Okabayashi K, Ishida T, Shigeta K, Seishima R, Itano O, Hasegawa H, Kitagawa Y. Impact of intraoperative hypocapnia on postoperative complications in laparoscopic surgery for colorectal cancer. Surg Today. 2021.
    • 45. Ikebata A, Shimoda M, Okabayashi K, Uraoka T, Maehata T, Sugimoto S, Mutaguchi M, Naganuma M, Kameyama K, Yahagi N, Kanai T, Kitagawa Y, Kanai Y, Iwao Y. Demarcated redness associated with increased vascular density/size: a useful marker of flat-type dysplasia in patients with ulcerative colitis. Endosc Int Open. 2021;9(4):E552-E561.
    • 46. Kato Y, Shigeta K, Okabayashi K, Tsuruta M, Seishima R, Matsui S, Sasaki K, Koseki Y, Kitagawa Y. Lymph noge metastasis is strongly associated with lung metastasis as the first recurrence site in colorectal cancer. Surgery. 2021;S0039-6060(21).
    • 47. Asada Y, Tsuruta M, Okabayashi K, Shigeta K, Ishida T, Shimada T, Suzumura H, Koishikawa K, Akimoto S, Hasegawa H, Kitagawa Y. Inhibition of Heat-shock Protein 27 Reduces 5-Fluorouracil-acquired Resistance in Human Colon Cancer Cells. Anticancer Res. 2021;41(3):1283-1290.
    • 48. Seishima R, Miyata H, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Monno M, Yamashita Y, Inomata M, Wakabayashi G, Kakeji Y, Kitagawa Y, Watanabe M. Safety and feasibility of laparoscopic surgery for elderly cancer patients in Japan：a nationwide study. BJS Open. 2021;5(2).
    • 49. Mizuno S, Seishima R, Okabayashi K, Shigeta K, Matsui S, Kitagawa Y. Sarcopenic obesity is a postoperative prognostic factor for stage Ⅱ and Ⅲ colorectal cancer. J Gastrointest Surg. 2021.
    • 50. Tajima Y, Tsuruta M, Hasegawa H, Okabayashi K, Ishida T, Yahagi M, Makino A, Koishikawa K, Akimoto S, Sin D, Kitagawa Y. Association of surfactant protein D with pulmonary metastases from colon cancer. Oncology letters. 2020;20(6).
    • 51. Kondo T, Okabayashi K, Sugiura K, Obara H, Takeuchi H, Wada N, Takano Y, Iwata S, Hasegawa N, Kitagawa Y. Effectiveness of active nasal surveillance culture for Methicillin-resistant Staphylococcus aureus in patients undergoing colorectal surgery . J Infect Chemother. 2020;26(12):1244-1248.
    • 52. Obara H, Takeuch M, Kawakubo H, Shinoda M, Okabayashi K, Hayashi K, Sekimoto Y, Maeda Y, Kondo T, Sato Y, Kitagawa Y. Aqueous olanexidine versus aqueous povidone-iodine for surgical skin antisepsis on the incidence of surgical site infections after clean-contaminated surgery：a multicentre, prospective, blinded-endpoint, randomised controlled trial. Randomized Controlled Trial. 2020;20(11):1281-1289.
    • 53. Yajima S, Suzuki T, Oshima Y, Shiratori F, Funahashi K, Kawai S, Nanki T, Muraoka S, Urita Y, Saida Y, Okazumi S, Kitagawa Y, Hirata Y, Hasegawa H, Okabayashi K, Murakami M, Yamashita T, Kato R, Matsubara H, Murakami K, Nakajima Y, Sugita H, Klammer M, Shimada H. New assay system elecsys Anti-p53 to detect serum Anti-p53 antibodies in esophageal cancer patients and colorectal cancer patients: Multi-institutional study. Ann Surg Oncol. 2020.
    • 54. Ikebata A, Okabayashi K, Tsuruta M, Shigeta K, Seishima R, Naganuma M, Kitagawa Y. The utility of the colectomy risk score in terms of predicting postoperative complications in patients with ulcerative colitis. J Gastrointest Surg. 2020.
    • 55. Teratani T, Mikami Y, Nakamoto N, Suzuki T, Harada Y, Okabayashi K, Hagihara Y, Taniki N, Kohno K, Shibata S, Miyamoto K, Ishigame H, PO-Sung Chu, Sujino T, Suda W, Hattori M, Matsui M, Okada T, Okano H, Inoue M, Yada T, Kitagawa Y, Yoshimura A, Tanida M, Tsuda M, Iwasaki Y, Kanai T. The liver-brain-gut neural arcmaintains the Treg cell niche in the gut. Nature. 2020;585(7826):591-596.
    • 56. Makino A, Tsuruta M, Okabayashi K, Ishida T, Shigeta K, Seishima R, Ikebata A, Koishikawa K, Hasegawa H, Shimoda M, Fukunaga K, Betsuyaku T, Kitagawa Y. The Impact of Smoking on Pulmonary Metastasis in Colorectal Cancer. Onco Targets Ther. 2020;13:9623-9629.
    • 57. Iwama N, Tsuruta M, Hasegawa H, Okabayashi K, Ishida T, Kitagawa Y. Relationship between anastomotic leakage and CT value of the mesorectum in laparoscopic anterior resection for rectal cancer. Jpn J Clin Oncol. 2020;50(4):405-410.
    • 58. Matsui S, Okabayashi K, Tsuruta M, Shigeta K, Seishima R, Ishida T, Kondo T, Suzuki Y, Hasegawa H, Shimoda M, Sugimoto S, Sato T, Kitagawa Y. Interleukin-13 and its signaling pathway is associated with obesity-related colorectal tumorigenesis. Cancer Sci. 2019 Jul;110(7):2156-2165.
    • 59. Suzuki Y, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Kondo T, Kitagawa Y. Comparison of Preoperative Inflammation-based Prognostic Scores in Patients With Colorectal Cancer. Ann Surg. 2018 Mar;267(3):527-531.
    • 60. Suzuki Y, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Murakami K, Kitagawa Y. Metabolic Tumor Volume and Total Lesion Glycolysis in PET/CT Correlate With the Pathological Findings of Colorectal Cancer and Allow Its Accurate Staging. Clin Nucl Med. 2016 Oct;41(10):761-5.
    • 61. Kondo T, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Kitagawa Y. The impact of hepatic fibrosis on the incidence of liver metastasis from colorectal cancer. Br J Cancer. 2016 Jun 28;115(1):34-9.
    • 62. Shigeta K, Hasegawa H, Okabayashi K, Tsuruta M, Ishii Y, Endo T, Ochiai H, Kondo T, Kitagawa Y. Randomized phase II trial of TEGAFIRI (tegafur/uracil, oral leucovorin, irinotecan) compared with FOLFIRI (folinic acid, 5-fluorouracil, irinotecan) in patients with unresectable/recurrent colorectal cancer. Int J Cancer. 2016 Aug 15;139(4):946-54.
    • 63. Seishima R, Okabayashi K, Nagano O, Hasegawa H, Tsuruta M, Shimoda M, Kameyama K, Saya H, Kitagawa Y. Sulfasalazine, a therapeutic agent for ulcerative colitis, inhibits the growth of CD44v9(+) cancer stem cells in ulcerative colitis-related cancer. Clin Res Hepatol Gastroenterol. 2016 Sep;40(4):487-93.
    • 64. Yahagi M, Okabayashi K, Hasegawa H, Tsuruta M, Kitagawa Y. The Worse Prognosis of Right-Sided Compared with Left-Sided Colon Cancers: a Systematic Review and Meta-analysis. J Gastrointest Surg. 2016 Mar;20(3):648-55.
    • 65. Shigeta K, Okabayashi K, Hasegawa H, Tsuruta M, Seishima R, Kitagawa Y. Meta-analysis of laparoscopic surgery for recurrent Crohn's disease. Surg Today. 2016 Aug;46(8):970-8.
    • 66. Shigeta K, Okabayashi K, Baba H, Hasegawa H, Tsuruta M, Yamafuji K, Kubochi K, Kitagawa Y. A meta-analysis of the use of a transanal drainage tube to prevent anastomotic leakage after anterior resection by double-stapling technique for rectal cancer. Surg Endosc. 2016 Feb;30(2):543-550.
    • 67. Takahashi H, Okabayashi K, Tsuruta M, Hasegawa H, Yahagi M, Kitagawa Y. Self-Expanding Metallic Stents Versus Surgical Intervention as Palliative Therapy for Obstructive Colorectal Cancer: A Meta-analysis. World J Surg. 2015 Aug;39(8):2037-44.
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