Dr. Asada Methasate  


NAME                        Asada Methasate M.D., Ph.D., F.I.C.S, F.R.C.S.T

TITLE                         Associate professor

DATE OF BIRTH      April 1, 1964

WORK                       Department of general surgery, faculty of medicine, Siriraj hospital, Mahidol university


1989                M.D., Faculty of Medicine, Tokyo Medical and Dental University

1997                Ph.D., Faculty of Medicine, Tokyo Medical and Dental University


1994                Diplomate, Japanese Board of General Surgery

1996                Diplomate, Japanese Sub-board of Gastroenterological Surgery

1999                Certificate, Japanese Board of Endoscopy

2008                Diplomate, Thai Board of General Surgery

2010                Diplomate, Thai Board of Surgical Oncology

2010                Certificate, Training in Robotic Gastrectomy (Korea)


1993-2000      Staff in General Surgery, Department of Surgery, Tokyo Medical and Dental University

2000               Lecturer, Division of General Surgery, Department of Surgery, Siriraj Hospital, Mahidol University

Assistant professor, Division of General Surgery, Department of Surgery, Siriraj Hospital, Mahidol University

2012                Associate professor, Division of General Surgery, Department of Surgery, Siriraj Hospital, Mahidol University

2007                Vice head of department of surgery, Siriraj Hospital, Mahidol University

2015                Chief, Minimally invasive surgery unit, Division of General Surgery, Department of Surgery, Siriraj Hospital, Mahidol University


                        Laparoscopic and robotic surgery of upper GI tract


Surgical Endoscopy

Surgical Oncology


  • Japanese Society of General Surgery
  • Japanese Society of Gastroenterological Surgery
  • Japanese Society of Gastrointestinal Endoscopy
  • Royal College of Surgeon, Thailand
  • International Society of Surgery
  • Society of Surgical Oncology, Thailand
  • Secretariat, Upper GI Surgery of Thailand


  1. Methasate A, Ohashi K, Nakamura K, Goseki       N, Endo M.       Proliferative activity and apoptosis in esophageal squamous cell carcinoma after preoperative irradiation.       ACRT 1996;5:35-41
  2. Asada Methasate M.D., Ph.D., Wijarn pongpanich M.D., Thawatchai Akaraviputh M.D., Somchai Leelakusolvong M.D., Wiroon Boonnuch, M.D., Varut Lohsiriwat, M.D., Darin Lohsiriwat M.D. Endoscopic endoprosthesis insertion in unresectable hilar cholangiocarcinoma patient. Siriraj Med J 2006;58
  3. Lohsiriwat V, Chinsawangwatthanakol V, Lohsiriwat S, Akaraviputh T, Boonnuch W, Methasate A, et al. Hypoalbuminemia is a predictor of delayed postoperative bowel       function and poor surgical outcomes in right-sided colon cancer patients. Asia Pac J Clin Nutr 2007;16:213-7 (2550)
  4. Laohavichitra K, Akaraviputh T, Methasate A, Leelakusolvong S, Kachintorn U. Comparison of early pre-cutting vs. standard technique for biliary cannulation in endoscopic retrograde cholangiopancreatography: a personal experience. World J Gastroenterol. 2007;13:3734-7 (2550)
  5. Lohsiriwat V, Sridermma W, Akaraviputh T, Boonnuch W, Chinsawangwatthanakol V, Methasate A, et al. Surgical outcomes of lichtenstein tension – free hernioplasty for acutely incarcerated inguinal hernia. Surg Today 2007;37:212-4 (2550)
  6. Akaraviputh T, Lohsiriwat V, Swangsri J, Methasate A, Leelakusolvong S, Lertakayamanee N. The learning curve for safety and success of precut sphincterotomy for therapeutic ERCP : a single endoscopist’s experience. Endoscopy 2008;40:513-6 (2551)
  7. K. Laohavichitra, A. Trakarnsanga, V. Lohsiriwat, A. Methasate, N. Leclakusolvong, W. Karnsakul, T. Akaraviputh.       Safety of early precut sphincterotomy for therapeutic ERCP: a single of early precut sphincterotomy: an analysis of consecutive 1525 ERCP examinations by a single endoscopist. Endoscopy 2008: 40 (Suppl I) A203 (2551)
  8. Akaraviputh T, Rattanapan T, Lohsiriwat V, Methasate A, Aroonpruksakul S, Lohsiriwat D. A same day approach for choledocholithiasis using endoscopic stone removal followed       by laparoscopic cholecystectomy: a retrospective study. J Med Assoc Thai 2009;92:8-11 (2552)
  9. Varut   Lohsiriwat   MD,  Darin   Lohsiriwat   MD,        Wiroon     Boonnuch   MD, Vitoon       Chinswangwatanakul   MD,       PhD, Thawatchai   Akaraviputh   MD, Asada Methasate MD, PhD,       Narong Lertakyamanee MD.       Comparison between Midline and Right Transverse Incision in Right Hemicolectomy for Right-Sided Colon Cancer : A Retrospective Study. J Med       Assoc Thai 2009; 92 (8) : 1003-8. (2552)
  10. Methasate A, Trakarnsanga A, Akaraviputh T, Chinsawangwathanakol V, Lohsiriwat D. Radical esophagectomy for esophageal cancer : results in Thai patients. J Med Assoc Thai 2010;93:1256-61 (2553)
  11. Methasate A, Trakarnsanga A, Akaraviputh T, Chinsawangwathanakol V, Lohsiriwat D. Lymph node metastasis in gastric cancer: result of D2 dissection. J Med Assoc Thai 2010;93:310-7 (2553)
  12. Leelakusolvong S, Sriprayoon T, Methasate A, Akaraviputh T.       Endoscopic treatment of acute ascaris pancreatitis. Endoscopy 2010;42:E12-E13 (2553)
  13. Supaporn Opasanon, Asada Methasate, Thawatchai Akaraviputh, Pornprom Muangman, Kris Kaorochana. Cervical esophageal injury from gunshot trauma: Endoscopic management for complication. Thai Journal of Surgery 2010;31:86-88 (2553)
  14. Methasate A, Trakarnsanga A, Akaraviputh T, Chinsawangwathanakol V, Lohsiriwat D. Early gastric cancer : the first case series in Thailand. J Med Assoc Thai 2011;94:316-22 (2554)
  15. Trakarnsanga A, Akaraviputh T, Methasate A, Chinswangwatanakul V. Hybrid approach for left-sided colonic carcinoma obstruction : a case report. World J Surg Oncol. 2011 Apr 21;9:42. doi: 10.1186/1477-7819-9-42 (2554)
  16. Trakarnsanga A, Akaraviputh T, Wathanaoran P, Phalanusitthepha C, Methasate A, Chinswangwatanakul V. Single-incision laparoscopic colectomy without using special articulating instruments: an initial experience. World J Surg Oncol. 2011 Dec 7;9:162. doi: 10.1186/1477-7819-9-162. (2554)
  17. Atthaphorn Trakarnsagna, Vitoon Chinswangwatanakul, Asada Methasate, Jirawat Swangsri, Chainarong Phalanusitthepha, Thammawat Parakonthun, Voraboot Taweerutc hana, Thawatchai Akaraviputh. Giant inguinal hernia: Report of a case and reviews of surgical techniques. International Journal of Surgery Case Reports 2014;5:868–872 (2557)
  18. Akaraviputh T, Angkurawaranon C, Phanchaipetch T, Lohsiriwat V, Nimmanwudipong T, Chinswangwatanakul V, Methasate A, Trakarnsanga A, Swangsri J, Taweerutchana V. Platysma myocutaneous flap interposition in surgical management of large acquired post-traumatic tracheoesophageal fistula: A case report. Int J Surg Case Rep. 2014;5(5):282-6 (2557)
  19. Chinswangwatanakul V, Angkurawaranon C, Phalanusitthepha C, Methasate A, Trakarnsanga A, Swangsri J, et al. Outcomes of self-expandable metallic stent inserton on acute colorectal obstruction: a single endoscopist experience. Journal of Tumor. 2014; 2: 208-18 (2557)
  20. Trakarnsanga A, Akaraviputh T, Angkurawaranon C, Pandee C, Photong N, Taweeruchana V, Swangsri J, Methasate A, et al. Outcomes of single-incision laparoscopic surgery for colon cancer: a case- matched comparative study. Siriraj Med J. 2016;68(2):104-8 (2559)
  21. Asada Methasate. Current Status of Robotic Surgery in Thailand and Usefulness of Soft Cadaver in the Laparo-robotic Training. J Jpn Bronchoesophagol Soc. Vol 68. No.2 2017 (2560)
  22. Asada Methasate, Varut Lohsiriwat. Role of endoscopy in caustic injury of the esophagus. World J Gastrointest Endosc 2018; 10(10): 274–282