Somchai Amornyotin, MD, FRCAT

Associate Professor

Department of Anesthesiology

Siriraj GI Endoscopy Center

Faculty of Medicine Siriraj Hospital

Mahidol University, Bangkok, 10700, Thailand


Biography

Dr. Somchai Amornyotin graduated at the Faculty of Medicine Siriraj Hospital, Mahidol University in 1989. He became the staff of the Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand in 1996. Until 2004 he became the associate professor of the Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University. From 2005 until 2009 he was the chief of Anesthesiology Division of Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University. His first scientific paper was published in Thailand in 1999.
He has practiced anesthesia for gastrointestinal endoscopy since 2002. He was the committee of Siriraj Gastrointestinal Endoscopy Center, Faculty of Medicine Siriraj Hospital in 2005. More than 50 of his articles have been published in Thai and international medical journals. Dr. Amornyotin is a member and committee of the Royal College of Anesthesiologists of Thailand, the Gastroenterological Association of Thailand and many scientific societies. He is the reviewer and editor of many international journals.

Research Interest

• Anesthesia for gastrointestinal endoscopy
• Total intravenous anesthesia (TIVA)
• Target-controlled infusion (TCI)
• Sedation for pediatric patients
• Anesthesia outside the operating room
• Ambulatory anesthesia
• Airway management
• Acute postoperative pain management

Scientific Activities

Honor and Awards
1. Special doctor of H.R.H. Princess Chulabhorn
2. 3rd winner award of the best research paper of the Royal College of Anesthesiologist of Thailand at Imperial Queens Park Hotel, 6-7 February 2010 “Dose requirement and complication of diluted and undiluted propofol for deep sedation for endoscopic retrograde cholangiopancreatography.”
3. Siriraj Innovator 2009, “XYLI-SHOT: a Reusable plastic bottle containing topical anesthetic agents”
4. IBC TOP 100 Health Professional-2010 from International Biographical Centre, Cambridge, England
5. Siriraj Innovator 2010, “Head pillow for gastrointestinal endoscopy procedure”
6. The International Hippocrates Award for Medical Achievement-2011 “Iconic Achievers” from International Biographical Centre, Cambridge, England
7. Award for the promotion of NarcotrendTM in Asia Pacific Region 2011
8. 2000 Outstanding Intellectuals of the 21st Century 2012 from International Biographical Centre, Cambridge, England
9. 2nd winner award of the best research paper of the anesthetic nurses of the Royal College of Anesthesiologist of Thailand Annual Meeting 2012 at 50 years Building, February 25-26, 2012, Bangkok, Thailand “The assessment tool for performance 3 skill and knowledge on airway management with mask ventilation by anesthetic nurse students.”
10. Book Editor of InTech, Croatia, “Endoscopy” 2013
11. Book Editor of InTech, Croatia, “Endoscopy of GI Tract” 2013
12. Member of the 30th Pearl Anniversary Edition of Who’s Who in the World 2013
13. 2000 Outstanding Intellectuals of the 21st Century-2013-from International Biographical Centre, Cambridge, England
14. Who's Who in the World 2014
15. Member of the Asian Council of Science Editors (ACSE)
16. Who's Who in the World 2015
17. Book Editor of InTech, Croatia, “Endoscopy - Innovative Uses and Emerging Technologies” 2015
18. Committee of the Royal College of Anesthesiologists of Thailand (RCAT) 2016-
19. Who's Who in the World 2016
20. Excellent Reviewer Recipients for 2016 of “Medicine” Journal
21. Who's Who in the World 2017
22. Who's Who in the World 2018

Publications

Book Chapters
1. Amornyotin S. Anesthesia for strangulated hernia. In: Prakanrattana U and Suwanjinda V, editors. Anesthesia for surgical emergency. 1st edition, Bangkok: Krungthepvejasarn, 2001: 35-9. (In Thai)
2. Amornyotin S. Local anesthetics. In: Prakanrattana U and Suwannajinda V, editors. Text book of Anesthesiology. 3rd edition, Bangkok: Krungthepvejasarn, 2005: 66-77. (In Thai)
3. Amornyotin S. Regional anesthesia. In: Prakanrattana U and Suwannajinda V,editors. Text book of Anesthesiology. 3rd edition, Bangkok: Krungthepvejasarn, 2005: 182-94. (In Thai)
4. Amornyotin S, Yokubon B. Current controversies in adult outpatient anesthesia. In: Achara Sumboonnanon, Jumpol Wilasrassamee, Manee Rattanachaiyanon, Chittima Manomai, Nithipat Chierkul, Phannawadee Puthawattana, et al, editors. 60 years’king throne celebration, Siriraj-Ramathibordee Mahidol University, 18-21 April, 2006; Sirikit Convention Center, Bangkok: Beyorn Enterprise Co. Ltd.; 2006: 609-10. (InThai)
5. Amornyotin S. Anesthesia for Endoscopic Retrograde Cholangiopancreatography. In: Vimollack Sanansilp, Achara Sumboonnanon, Wanicha Cheunkongkaew, Phankae Mahaisavariya, Wanee Wisutsereevong, Manee Rattanachaiyanon, et al, editors. Siriraj Medical Conference 2007 (46th), 5-9 March, 2007; Navy Convention Center, Bangkok: P. A. Living Co. Ltd.; 2007: 449-53. (In Thai)
6. Amornyotin S. Ambulatory anesthesia. In: Wichai Itthichaiyakulthon, Rouenrueng Leelanukrom, Kumthorn Tantiwitthayathan, Saowapak Jumpathong, editors. Update in anesthesiology, Bangkok: S. Asiapress (1989) Co. Ltd; 2003: 117-23. (In Thai)
7. Amornyotin S. Anesthesia for gastrointestinal endoscopy. In: Phongprasobchai S, Akkaraviputh T, Sriprayoon T, editors. The master of gastroenterology, Bangkok: Krungthepvejasarn; 2009: 1-19. (In Thai)
8. Amornyotin S. Anesthesia for gastrointestinal bleeding patients. In: Phongprasobchai S, Akaraviputh T, Kachintorn U, editors. Gastrointestinal bleeding, Bangkok: Krungthepvejasarn; 2010: 4-15. (In Thai)
9. Amornyotin S. Intravenous sedation for pediatric gastrointestinal endoscopy in a developing country. In: Oliviu Pascu, editor. Gastrointestinal Endoscopy, Croatia: InTech; 2011: 53-60. ISBN: 978-953-307-385-9, InTech, DOI: 10.5772/21894. Available from: http://www.intechopen.com/books/gastrointestinal-endoscopy/intravenous-sedation-for-pediatric-gastrointestinal-endoscopy-in-a-developing-country
10. Amornyotin S. Anesthesia for colonoscopy. In: Phongprasobchai S, Akaraviputh T, Kachintorn U, editors. Colonoscopy, Bangkok: Krungthepvejasarn; 2011: 22-37. (In Thai)
11. Amornyotin S. Anesthesia for gastrointestinal endoscopy. In: Temeeyasen P, editor. Management in gastrointestinal endoscopy unit, Bangkok: Cyberprint; 2012: 24-55. (In Thai)
12. Amornyotin S. Total intravenous anesthesia. In: Rodanant O, Lekpresert V, Duangrat T, editor. Update in anesthesiology, Bangkok: Tanapress; 2012: 94-108. (In Thai)
13. Amornyotin S. Cardiorespiratory complications during moderate and deep sedation for gastrointestinal endoscopic procedures. In: Somchai Amornyotin, editor. Endoscopy of GI Tract, Croatia: InTech; 2013: 13-22. ISBN: 978-953-51-1034-7, InTech, Available from: http://www.intechopen.com/books/endoscopy-of-gitract/cardiorespiratory-complications-during-moderate-and-deep-sedation-forgastrointestinal-endoscopic-procedure
14. Amornyotin S. Anesthetic management for laparoscopic cholecystectomy. In: Somchai Amornyotin, editor. Endoscopy, Croatia: InTech; 2013: 39-48. ISBN: 978-953-51-1071-2, InTech, Available from: http://www.intechopen.com/books/endoscopy/anesthetic-management-for-laparoscopic-cholecystectomy
15. Amornyotin S. Innovations and anesthesia for laparoscopy and endoscopy. In: Akaraviputh T, Ratanachu-Ek T, editors. Surgical Endoscopy: The innovation in laparoscopic surgery and GI endoscopy, Bangkok: Krungthepvejasarn, 2013: 1-20. (In Thai) ISBN: 978-616-279-287-8
16. Amornyotin S. Anesthesia for GI endoscopy. In: Prakanrattana U, Sanansilp V, Suksompong S and Toomtong P, editors. Anesthesiology, Bangkok: Krungthepvejasarn, 2013: 727-34 (In Thai)
17. Amornyotin S. Sedation-related complications in gastrointestinal endoscopy. In: Li Ma, Mei-Sze Chua and Samuel So, editors. World Clinical Gastroenterology, 1st edition, CA, United States: Baishideng Publishing Group Inc, 2014: 1772-8 ISBN 978-0-9914430-0-0
18. Amornyotin S. Sedation and monitoring for gastrointestinal endoscopy. In: Li Ma, Mei-Sze Chua and Samuel So, editors. World Clinical Gastroenterology, 1st edition, CA, United States: Baishideng Publishing Group Inc, 2014: 1751-9 ISBN 978-0-9914430-0-0
19. Amornyotin S. Anesthesia Innovations for Endoscopy of Gastrointestinal Tract, Endoscopy - Innovative Uses and Emerging Technologies, Associate Prof. Somchai Amornyotin (Ed.), ISBN: 978-953-51-2172-5, InTech, 2015, Available from: http://www.intechopen.com/books/endoscopy-innovative-uses-and-emergingtechnologies/anesthesia-innovations-for-endoscopy-of-gastrointestinal-tract
20. Amornyotin S, Jirachaipitak S. Anesthetic management for achalasia. In: Phalanusittepa C, Akkaraviputh T and Leelakusolvongse S, editors. Achalasia, ISBN: 978-616-279-792-7, Bangkok: Krungthepvejasarn, 2016: 143-53. (In Thai)
Scientific Publications
1. Amornyotin S, Visalyaputra S, Thepchatri C, Sakulpachareon N. The comparison between intrathecal hyperbaric and isobaric bupivacaine in combined spinal/epidural technique (CSF) for cesarean section. Thai Journal of Anesthesiology 1999; 25: 121-6. (In Thai)
2. Amornyotin S. Trachlight (Stylet and tracheal lightwand): an equipment for endotracheal intubation. Thai Journal of Anesthesiology 2000; 26 (3): 192-7. (In Thai)
3. Amornyotin S, Piromrat I. Malignant hyperthermia in children: a case report. Thai Journal of Anesthesiology 2000; 26 (4): 249-53. (In Thai)
4. Amornyotin S, Soontranan P. Endotracheal intubation by stylet and tracheal lightwand in cervical spondylosis patient. Thai Journal of Anesthesiology 2001; 27 (4): 233-5.
5. Amornyotin S, Sanansilp V, Amorntien V, Tirawat P. Effectiveness of lightwand intubation by 1st year anesthesia residents. Journal of Medical Association of Thailand 2002; 85 (Suppl 3): S963-8. [PMID: 12452236]
6. Amornyotin S, Santawat U, Rushatamukayanant P, Ninsuwankosit P, Pipatnarapong H. Can lidocaine reduce suxamethonium induced postoperative myalgia? Journal of Medical Association of Thailand 2002; 85 (Suppl 3): S 969-
74. [PMID: 12452237]
7. Amornyotin S, Raksamani A. Low plasma cholinesterase (pseudocholinesterase) and prolonged apnea. Thai Journal of Anesthesiology 2002; 28 (2): 83-7. (In Thai)
8. Amornyotin S. Hi-Lo Evac TM Endotracheal tube. Thai Journal of Anesthesiology 2002; 28 (3): 147-9. (In Thai)
9. Amornyotin S. Rocuronium (Org 9426). Thai Journal of Anesthesiology 2002; 28 (4): 243-52. (In Thai)
10. Amornyotin S. Laryngeal tube. Thai Journal of Anesthesiology 2002; 28 (1): 14-8. (In Thai)
11. Amornyotin S, Santawat U, Rachatamukaynant P, Nilsuwankosit P, Pipatnaraphong H, Parakkamodom S, Permpholprasert L. Can lidocaine reduce rocuronium induced postoperative myalgia? Thai Journal of Anesthesiology 2003; 29 (1): 1-5.
12. Amornyotin S, Suraseranivongse S, Muangman S, Sattawathamrong Y, Tensit K, Prakotsue K, Chalayonnavin V. Comparison of dose requirement of diluted and undiluted propofol for patients undergoing ERCP. Thai Journal of Anesthesiology 2003; 29 (1): 6-12. (In Thai)
13. Amornyotin S, Na-pomphet S, Wongwathanyoo T, Chalayonnavin V. Anesthesia for endoscopic retrograde cholangiopancreatography (ERCP) from 1999-2003 in Siriraj Hospital: a retrospective study. Journal of Medical Association of Thailand 2004; 87 (12): 1491-5. [PMID: 15822546]
14. Amornyotin S, Promthong P, Reunreung W. Anesthesia for nuclear medicine procedures in children from 2002- 2004 in Siriraj Hospital: a retrospective study. Thai Journal of Anesthesiology 2006; 32 (3): 182-90.
15. Amornyotin S, Lertakayamanee N, Wongyingsinn M, Pimukmanuskit P, Chalayonnavin V. The effectiveness of intravenous sedation in diagnostic upper gastrointestinal endoscopy. Journal of Medical Association of Thailand 2007; 90(2): 301-6. [PMID: 17375635]
16. Amornyotin S, Parichatikanond P, Reunreung W Anesthesia for embolization from 2003-2004 in Siriraj Hospital: a retrospective study. Siriraj Medical Journal 2007; 59 (4): 161-3.
17. Amornyotin S, Chalayonnavin V, Kongphlay S. Recovery pattern and homereadiness after gastrointestinal endoscopy. Journal of Medical Association of Thailand 2007; 90 (11): 2352-8. [PMID: 18181319]
18. Amornyotin S, Pranootnarabhal T, Chalayonnavin W, Kongphlay S. Anesthesia for gastrointestinal endoscopy from 2005-2006 in Siriraj Hospital: a prospective study. Thai Journal of Anesthesiology 2007; 33 (2): 93-101.
19. Amornyotin S, Prakanrattana U, Tritrakarn T, Kachintorn U, Muangman S, Udomporn Y, Chalayonnavin W, Kongphlay S. Patient characteristics and behaviors of smokers and nonsmokers who undergoing gastrointestinal endoscopy in Siriraj Hospital. Siriraj Medical Bulletin 2008; 1 (2): 71-80. (In Thai)
20. Amornyotin S, Prakanrattana U, Chalayonnavin W, Kongphlay S, Chantakard S. Anesthesia for pediatric gastrointestinal endoscopy in a tertiary care teaching hospital. Thai Journal of Anesthesiology 2008; 34 (4): 265-72.
21. Amornyotin S, Prakanrattana U, Chalayonnavin W, Kongphlay S, Kongmueng B. Anesthesia for percutaneous endoscopic gastrostomy in Siriraj Hospital. Thai Journal of Anesthesiology 2009; 35 (1): 39-47.
22. Amornyotin S, Aanpreung P, Prakanrattana U, Chalayonnavin W, Chatchawankitkul S, Srikureja W. Experience of intravenous sedation for pediatric gastrointestinal endoscopy in a large tertiary referral center in a developing country. Pediatric Anesthesia 2009; 19 (8): 784-91. [PMID: 19624366 DOI: 10.1111/j.1460-9592.2009.03063.x]
23. Amornyotin S, Prakanrattana U, Chalayonnavin W, Kongphlay S. Anesthesia for gastrointestinal endoscopy in extremely elderly patients. Thai Journal of Anesthesiology 2009; 35 (2): 91-9.
24. Amornyotin S, Srikureja W, Chalayonnavin W, Kongphlay S, Chatchawankitkul S. Topical viscous lidocaine solution versus lidocaine spray for pharyngeal anesthesia in unsedated esophagogastroduodenoscopy. Endoscopy 2009; 41 (7): 581-6. [PMID: 19588284 DOI: 10.1055/s-0029-1214865]
25. Amornyotin S, Prakanrattana U, Chalayonnavin W, Kongphlay S. Intravenous sedation for endoscopic ultrasonography in Siriraj Hospital. Thai Journal of Anesthesiology 2009; 35 (3): 181-90.
26. Amornyotin S, Phasurin T, Wongnuch P. Pain score within twenty-four hours postendoscopic retrograde cholangiopancreatography: a comparison between diagnostic and therapeutic procedures. Gastroenterology Insights 2009; 1 (e7): 20-3. [DOI: 10.4081/gi.2009.e7]
27. Amornyotin S. Dexmedetomidine. Thai Journal of Anesthesiology 2009; 35 (4): 296-302.
28. Amornyotin S, Chalayonnavin W, Kongphlay S. Assisted sedation for percutaneous endoscopic gastrostomy in sick patients in a developing country. Gastroenterology Insights 2010; 2 (e5): 17-20. [DOI: 10.4081/gi.2010.e5]
29. Amornyotin S, Prakanrattana U, Vichitvejpaisal P, Vallisut T, Kunanont N, Permpholprasert L. Comparison of the clinical use of Macintosh and Miller laryngoscopes for orotracheal intubation by second-month nurse students in anesthesiology. Anesthesiology Research and Practice 2010; 2010, pii: 432846. [PMID: 20700430 DOI:10.1155/2010/432846]
30. Amornyotin S, Prakanrattana U, Chalayonnavin W, Kongphlay S, Kachintorn U. Propofol based sedation does not increase rate of perforation during colonoscopic procedure. Gastroenterology Insights 2010; 2 (e4): 13-6. [DOI: 10.4081/gi.2010.e4]
31. Amornyotin S, Chalayonnawin W, Kongphlay S. Propofol-based sedation does not increase rate of complication during percutaneous endosopic gastrostomy procedure. Gastroenterology Research and Practice 2011; Article number 134819. [PMID: 20811547 DOI: 10.1155/2011/134819]
32. Amornyotin S, Aanpreung P. Clinical effectiveness of an anesthesiologistadministered intravenous sedation outside of the main operating room for pediatric upper gastrointestinal endoscopy in Thailand. International Journal of Pediatrics 2010; Article ID 748564, 6 pages. [PMID: 20811603 DOI: 10.1155/2010/748564]
33. Amornyotin S, Chalayonnawin W, Kongphlay S. Deep sedation for endoscopic retrograde cholangiopancreatography: a comparison between clinical assessment and NarcotrendTM monitoring. Medical Devices (Auckl) 2011; 4: 43-9. [PMID: 22915929 DOI: 10.2147/MDER.S17236]
34. Amornyotin S, Srikureja W, Chalayonnawin W, Kongphlay S. Dose requirement and complication of diluted and undiluted propofol for deep sedation for endoscopic retrograde cholangiopancreatography. Hepatobiliary Pancreatic Diseases International 2011; 10 (3): 313-8. [PMID: 21669577]
35. Amornyotin S, Srikureja W, Pausawasdi N, Prakanrattana U, Kachintorn U. Intravenous sedation for gastrointestinal endoscopy in very elderly patients of Thailand. Asian Biomedicine 2011; 5 (4): 485-91. [DOI: 10.5372/1905-7415.0504.063]
36. Amornyotin S, Kachintorn U, Chalayonnawin W, Kongphlay S. Propofol-based deep sedation for endoscopic retrograde cholangiopancreatography procedure in sick elderly patients in a developing country. Therapeutics and Clinical Risk Management 2011; 7: 251-5. [PMID: 21753887 DOI: 10.2147/TCRM.S21519]
37. Amornyotin S. Sedation outside operating room. Medical Time 2011; 12 (286): S1-8. (In Thai)
38. Amornyotin S, Kongphlay S. Esophagogastroduodenoscopy procedure in sick pediatric patients: a comparison between deep sedation and general anesthesia technique. Journal of Anesthesia and Clinical Research 2012; 3 (1): 1000185. [DOI: 10.4712/2155-6148.1000185]
39. Amornyotin S. Pediatric sedation and analgesia in a developing country. Journal of Anesthesia and Clinical Research 2011; 2: S12: 001. [DOI: 10.4172/2155-6148.S12-001]
40. Amornyotin S, Kachintorn U, Kongphlay S. Anesthetic management for small bowel enteroscopy in a World Gastroenterology Organizing Endoscopy Training Center. World Journal of Gastrointestinal Endoscopy 2012; 4 (5): 189-93. [PMID: 22624071 DOI: 10.4253/wjge.v4.i5.189]
41. Amornyotin S. General patient preparation for GI endoscopy. Medical Time 2012; 13 (303): 35-7 (In Thai)
42. Amornyotin S, Leelakusolvong S, Chalayonnawin W, Kongphlay S. Agedependent safety analysis of propofol-based deep sedation for ERCP and EUS procedures at an Endoscopy Training Center in a developing country. Clinical and Experimental Gastroenterology 2012; 5: 123-8. [PMID: 22826640 DOI: 10.2147/CEG.S31275]
43. Amornyotin S, Chalayonnawin W, Kongphlay S. A randomized controlled trial of preprocedure administration of parecoxib for therapeutic endoscopic retrograde cholangiopancreatography. Journal of Pain Research 2012; 5: 251-6. [PMID: 23049274 DOI: 10.2147/JPR.S33546]
44. Amornyotin S. Endoscopists need to know for upper gastrointestinal endoscopy. Medical Time 2012; 13 (310): 28-9. (In Thai)
45. Amornyotin S. Monitoring for depth of anesthesia: a review. Journal of Biomedical Graphics and Computing 2012; 2 (2): 119-27. [DOI: 10.5430/jbgc.v2n2p119]
46. Amornyotin S. Propofol administration for gastrointestinal endoscopy. Medical Time 2012; 14 (314): 31-3. (In Thai)
47. Amornyotin S, Prakanrattana U, Chalayonnawin W, Kongphlay S. Brief advice offered by anesthetic personnel to encourage smoking cessation in ambulatory gastrointestinal endoscopic patients in a developing country. International Journal of Life Science and Medical Research 2012; 2 (4): 37-42. [DOI: 10.5963/LSMR0204006]
48. Amornyotin S. Sedation and monitoring for gastrointestinal endoscopy. World Journal of Gastrointestinal Endoscopy 2013; 5 (2): 47-55. [PMID: 23424050 DOI: 10.4253/wjge.v5.i2.47]
49. Amornyotin S. Local anesthetics for gastrointestinal endoscopy. Medical Time 2013; 14 (318): 25-7. (In Thai)
50. Amornyotin S. Sedation for colonoscopy in children. Journal of Gastroenterology and Hepatology Research 2013; 2 (6): 555-60. [DOI: 10.6051/j.issn.2224-3992.2013.02.106]
51. Amornyotin S. Anesthesia outside the operating room. Medical Time 2013; 14 (320): 12-4. (In Thai)
52. Amornyotin S. Anesthetic consideration for laparoscopic surgery. International Journal of Anesthesiology & Research 2013; 1: 102.
53. Amornyotin S. Role of anesthesiologists in promoting smoking cessation. Medical Time 2013; 14 (328): 17-8. (In Thai)
54. Amornyotin S. Use of dexmedetomidine in clinical practice. Medical Time 2013; 15 (332): 19-21. (In Thai)
55. Amornyotin S. Monitoring equipment for gastrointestinal endoscopy. Medical Time 2013; 14 (): . (In Thai)
56. Amornyotin S. Colonoscopy: anesthesia consideration. Medical Time 2013; 15 (335): 17-20. (In Thai)
57. Amornyotin S. Sedation-related complications in gastrointestinal endoscopy. World Journal of Gastrointestinal Endoscopy 2013; 5 (11): 527-33. [PMID: 24255744 DOI: 10.4253/wjge.v5.i11.527]
58. Amornyotin S, Songarj P, Kongphlay S. Deep sedation with propofol and pethidine versus moderate sedation with midazolam and fentanyl in colonoscopic procedure. Journal of Gastroenterology and Hepatology Research 2013; 2 (12): 885-90. [DOI: 10.6051/j.issn.2224-3992.2013.02.358]
59. Amornyotin S, Kongphlay S. Anesthetic trainee-administered propofol deep sedation for small bowel enteroscopy procedure in elderly patients. Journal of Gastroenterology and Hepatology Research 2014; 3 (6): 1117-29. [DOI: 10.6051/j.issn.2224-3992.2014.04.398]
60. Amornyotin S. Sedative and analgesic drugs for gastrointestinal endoscopic procedure. Journal of Gastroenterology and Hepatology Research 2014; 3 (6): 1133-44. [DOI: 10.6051/j.issn.2224-3992.2014.04.397]
61. Amornyotin S. Ketofol: a combination of ketamine and propofol. Journal of Anesthesia & Critical Care: Open Access 2014; 1 (5): 00031. [DOI: 10.15406/jaccoa.2014.01.00031]
62. Amornyotin S. Ketamine: pharmacology revisited. International Journal of Anesthesiology Research 2014; 2: 42-4. [DOI: 10.14205/2310-9394.2014.02.02.4]
63. Amornyotin S, Kongphlay S. Anesthesia-related adverse event rate and alteration of blood pressure and heart rate during and immediately after unsedated esophagogastroduodenoscopy in elderly patients. Journal of Gastroenterology and Hepatology Research 2015; 4 (2): 1474-7. [DOI: 10.6051/j.issn.2224-3992.2015.04.503]
64. Amornyotin S. Registered nurse-administered sedation for gastrointestinal endoscopic procedure. World Journal of Gastrointestinal Endoscopy 2015; 7(8): 769-76. [PMID: 26191341 DOI: 10.4253/wjge.v7.i8.769]
65. Amornyotin S, Saivaew K, Vichitmala K. Pain score within twenty-four hours post-endoscopic ultrasonography: a comparison between with or without fine needle aspiration procedure. Journal of Gastroenterology and Hepatology Research 2015; 4 (7): 1694-7. [DOI: 10.17554/j.issn.2224-3992.2015.04.555]
66. Amornyotin S, Kongphlay S. Clinical efficacy of combination of propofol and ketamine (ketofol) for deep sedation in colonoscopic procedure. Journal of Gastroenterology and Hepatology Research 2015; 4 (7): 1689-93. [DOI: 10.17554/j.issn.2224-3992.2015.04.553]
67. Amornyotin S, Kongphlay S. Complication rate of propofol-based deep sedation for colonoscopy in marked obesity patients. Journal of Gastroenterology and Hepatology Research 2015; 4 (8): 1734-8. [DOI: 10.17554/j.issn.2224-3992.2015.04.559]
68. Amornyotin S, Jirachaipitak S, Wangnatip S. Anesthetic management for radiofrequency ablation in patients with hepatocellular carcinoma in a developing country. Journal of Anesthesia & Critical Care: Open Access 2015; 3 (1): 00086. [DOI: 10.15406/jaccoa.2015.03.00086]
69. Amornyotin S, Kongphlay S. Unsedated esophagogastroduodenoscopy in cirrhotic patients: an impact of topical pharyngeal anesthesia. Journal of Anesthesia & Critical Care: Open Access 2015; 3 (4): 00106 [DOI: 10.15406/jaccoa.2015. 03.00106]
70. Amornyotin S, Chalayonnawin W, Kongphlay S. Topical pharyngeal anesthesia for unsedated esophagogastroduodenoscopy procedure in sick patients. Journal of Anesthesia & Critical Care: Open Access 2016; 4 (2): 00134 [DOI: 10.15406/jaccoa.2016.04.00134]
71. Wangnamthip S, Chinachoti T, Amornyotin S, Wongtangman K, Sukantarat N, Noitasaeng P. A randomized placebo-controlled trial of oral ramosetron for prevention of post operative nausea and vomiting after intrathecal morphine in patients undergoing gynecological surgery. Journal of Medical Association of Thailand 2016; 99 (5): 455-61. [PMID: 27501597]
72. Amornyotin S. Dexmedetomidine in gastrointestinal endoscopic procedures. World Journal of Anesthesiology 2016; 5 (1): 1-14. [DOI: http://dx.doi.org/ 10.5313/wja.v5.i1.1]
73. Amornyotin S, Jirachaipitak S, Wangnamtip S. Anesthetic management for esophageal stent placement in an endoscopy unit outside operating room. Journal of Medical Association of Thailand 2016; 99 (5): 525-30. [PMID: 27501607]
74. Parakkamodom S, Chainchop P, Napachoti T, Apidechakul P, Puangchan S, Noitasaeng P, Amornyotin S*. Quality of anesthesia care in a university hospital in Thailand. Journal of Medical Association of Thailand 2016; 99 (5): 622-8. [PMID: 27501621]
75. Tiviraj S, Yokubol B, Amornyotin S*. Development of an assessment test for an anesthetic machine. Journal of Medical Association of Thailand 2016; 99 (5): 629-35. [PMID: 27501622]
76. Amornyotin S. Intravenous sedation techniques for gastrointestinal endoscopy. Journal of Gastroenterology and Hepatology Research 2016; 5(3): 2050-7. Available from: URL: http: //www.ghrnet.org/index.php/joghr/article/view/1432 [DOI: 10.17554/j.issn.2224-3992.2016.05.583]
77. Amornyotin S, Chalayonnawin W, Kongphlay S. Adverse event rate of unsedated esophagogastroduodenoscopy: a comparison between healthy adults and cirrhotic patients. Gastroenterol Hepatol Open Access 2016; 5 (3): 00142. [DOI: 10.15406/ghoa.2016.05.00142]
78. Amornyotin S. Anesthesia innovation: Mini-review of an intravenous sedation for gastrointestinal endoscopy. Advanced Research in Gastroenterology & Hepatology 2017; 4 (3): ARGH.MS.ID.555636. [DOI: 10.19080/ARGH.2017.04.555636]
79. Amornyotin S, Kongphlay S. Propofol-based deep sedation for percutaneous radiofrequency ablation in sick elderly patients with hepatocellular carcinoma in a developing country. Journal of Anesthesia & Critical Care: Open Access 2017; 8 (3): 00303. [DOI: 10.15406/jaccoa.2017.08.00303]
80. Amornyotin S. Role of an anesthesiologist in smoking patients undergoing endoscopic procedures. Journal of Addiction Medicine and Therapeutic Science 2017; 3 (3): 030-031. [DOI: http://doi.org/10.17352/2455-3484.000023]
81. Amornyotin S, Kongphlay S. Anesthesia for esophageal dilation procedure in a World Gastroenterology Organizing Endoscopy Training Center. Journal of Medical Association of Thailand 2017; 100 (Suppl 7): S188-94.
82. Amornyotin S, Jirachaipitak S. Anesthesiologist role in achalasia patients: review article. Thai Journal of Anesthesiology 2017; 43 (2): 177-85.
83. Lomarattana N, Silapadech T, Muangman S, Boayam W, Kriprasit K, Boonnark P, Amornyotin S*. Recovery time and complications of propofol-based deep sedation for endoscopic ultrasonography: a comparison between with and without topical pharyngeal anesthesia. Journal of Medical Association of Thailand 2017; 100 (Suppl 7): S202-9.
84. Muangman S, Amornyotin S, Mangmeesri P, Chumpathong S, Pausawasdi N, Chotiwaputta W, Limsrivilai J, Svastdi-xuto O, Jaiyen T, Luansritisakul C. Success rate of sedation in esophagogastroduodenoscopy using fentanyl and midazolam in combination with topical lidocaine. Journal of Medical Association of Thailand 2017; 100 (Suppl 7): S195-201.
85. Amornyotin S. Anesthesia for elderly patients. Analgesia & Resuscitation: Current Research 2017; 6 (2): 1000149. [DOI: 10.4172/2324-903X.1000149]
86. Yoosri S, Parakkamodom S, Amornyotin S*. Results of the workshop on prevention and control of infectious diseases in anesthesia practice in Siriraj Hospital. Thai Journal of Anesthesiology 2017; 43 (3): 241-9.
87. Amornyotin S. Monitoring equipment for gastrointestinal endoscopy. Thai Journal of Anesthesiology 2018; 44 (3): 143-8.

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