1. Heidari SM, Loghmani P. Assessment of the effects of ketamine-fentanyl combination versus propofol-remifentanil combination for sedation during endoscopic retrograde cholangiopancreatography. J Res Med Sci 2014; 19(9): 860-6.
2. Seo YJ, Hadaya J, Sareh S, Aguayo E, de Virgilio CM, Benharash P. National trends and outcomes in timing of ERCP in patients with cholangitis. Surgery 2020; 168(3): 426-33.
3. Yang JF, Farooq P, Zwilling K, Patel D, Siddiqui AA. Efficacy and Safety of Propofol-Mediated Sedation for Outpatient Endoscopic Retrograde Cholangiopancreatography (ERCP). Dig Dis Sci 2016; 61(6): 1686-91.
4. Nazemroaya, B., Shafa, A., Khizab, M. Comparison of the Effect of Ketamine and Sodium Thiopental on Blood Pressure and Heart Rate during Electroconvulsive Therapy in Patients Admitted to the Ward of Psychiatry; A Double-Blind Randomized Clinical Trial [in Persian]. J Isfahan Med Sch 2016; 34(402): 1197-204.
5. Wang P, Chen Y, Guo Y, Cao J, Wang H, Mi W, et al. Comparison of propofol-nalbuphine and propofol-fentanyl sedation for patients undergoing endoscopic retrograde cholangiopancreatography: a double-blind, randomized controlled trial. BMC Anesthesiol 2022; 22(1): 47.
6. Shetabi H, Nazemroaya B, Shafa A, Sarlak S. Comparison of the Efficacy of Two-Drug Combination, Ketofol and Fenofol, on Sedation and Analgesia in Patients under the Surgery of Port Catheter Placement and Removal [in Persian]. J Isfahan Med Sch 2019; 36(505): 1421-7.
7. Inatomi O, Imai T, Fujimoto T, Takahashi K, Yokota Y, Yamashita N, et al. Dexmedetomidine is safe and reduces the additional dose of midazolam for sedation during endoscopic retrograde cholangiopancreatography in very elderly patients. BMC Gastroenterol 2018; 18(1): 166.
8. Jabalameli M, Nazemroaya B, Kamali A. Assessing the effects of dexmedetomidine and labetalol on changes in heart rate and blood pressure after laryngoscopy compared to a control group [in Persian]. J Cell Mol Anesth 2020; 5(2): e149597.
9. Demiraran Y, Korkut E, Tamer A, Yorulmaz I, Kocaman B, Sezen G, et al. The comparison of dexmedetomidine and midazolam used for sedation of patients during upper endoscopy: A prospective, randomized study. Can J Gastroenterol 2007; 21(1): 25-9.
10. Chen M, Sun Y, Li X, Zhang C, Huang X, Xu Y, et al. Effectiveness of single loading dose of dexmedetomidine combined with propofol for deep sedation of endoscopic retrograde cholangiopancreatography (ERCP) in elderly patients: a prospective randomized study. BMC Anesthesiol 2022; 22(1): 85.
11. Pushkarna G, Sarangal P, Pushkarna V, Gupta R. Comparative Evaluation of Dexmedetomidine versus Midazolam as Premedication to Propofol Anesthesia in Endoscopic Retrograde Cholangiopancreatography. Anesth Essays Res 2019; 13(2): 297-302.
12. Tokmak S, Cetin MF, Torun S. Efficacy and safety of endoscopic retrograde cholangiopancreatography in the very elderly by using a combination of intravenous midazolam, ketamine and pethidine. Geriatr Gerontol Int 2021; 21(10): 887-92.
13. Ebru TK, Resul K. Comparison of ketamine-propofol mixture (ketofol) and midazolam-meperidine in endoscopic retrograde cholangiopancretography (ERCP) for oldest old patients. Ther Clin Risk Manag 2019; 15: 755-63.
14. Aminnejad R, Hormati A, Shafiee H, Alemi F, Hormati M, Saeidi M, et al. Comparing the efficacy and safety of dexmedetomidine/ketamine with propofol/fentanyl for sedation in colonoscopy patients: a doubleblinded randomized clinical trial. CNS Neurol Disord Drug Targets 2022; 21(8): 724-31.
15. Chen S, Wang J, Xu X, Huang Y, Xue S, Wu A, et al. The efficacy and safety of remimazolam tosylate versus propofol in patients undergoing colonoscopy: a multicentered, randomized, positive-controlled, phase III clinical trial. Am J Transl Res 2020; 12(8): 4594-603.
16. Bahrami Gorji F, Amri P, Shokri J, Alereza H, Bijani A. Sedative and analgesic effects of propofol-fentanyl versus propofol-ketamine during endoscopic retrograde cholangiopancreatography: a double-blind randomized clinical trial. Anesth Pain Med 2016; 6(5): e39835.
17. Naghibi K, Nazemroaya B, Sargaran A. A comparison of the effect of intravenous dexamethasone and lidocaine on prevention of postoperative cognitive disorders in cataract surgery in elderly patients [in Persian]. J Isfahan Med Sch 2018; 36(484): 666-672.
18. Ren J, Wang L, Sun X. The effect of propofol combined with sufentanil on anesthetic effect, cognitive function, and hemodynamics in patients undergoing intertrochanteric fracture surgery evaluated by propensity score matching. Am J Transl Res 2023; 15(5): 3607-15.
19. Azarfar A, Ravanshad Y, Golsorkhi M, Zahiri E, Gharavi Fard M, Akhondi M, et al. Comparison of propofol-fentanyl with midazolam-ketamine combination in pediatric patients undergoing kidney biopsy. Iran J Kidney Dis 2022; 16(4): 246-51.
20. Fukano K, Iizuka Y, Ueda T, Fukuda Y, Otsuka Y, Sanui M. Comparison of sedation with ketamine-propofol versus propofol-fentanyl for elderly patients undergoing prostate biopsy: a retrospective observational study. Cureus 2023; 15(7): e42650.
21. Lipscombe C, Akhlaghi H, Groombridge C, Bernard S, Smith K, Olaussen A. Intubation rates following prehospital administration of ketamine for acute agitation: a systematic review and meta-analysis. Prehosp Emerg Care 2023; 27(8): 1016-30.
22. Volkov PA, Churadze BT, Sevalkin SA, Volkova YN, Guryanov VA. [Dexmedetomidine as a part of analgesic component of general anesthesia for laparoscopic operations] [in Russian]. Anesteziol Reanimatol 2015; 60(1): 4-8.
23. Esmaillian M, Kouhestani S, Azizkhani R, Heydari F, Safavi MR. Dexmedetomidine versus propofol: An effective combination with ketamine for adult procedural sedation: A randomized clinical trial. Am J Emerg Med 2023; 73: 95-101.
24. Riccardi A, Serra S, De Iaco F, Fabbri A, Shiffer D, Voza A. Uncovering the Benefits of the Ketamine-Dexmedetomidine Combination for Procedural Sedation during the Italian COVID-19 Pandemic. J Clin Med 2023; 12(9): 3124.
25. Duran M, Dogukan M, Tepe M, Ceyhan K, Sertkaya M, Uludag O, et al. Comparison of propofol-fentanyl and propofol-ketamine for sedoanalgesia in percutaneous endoscopic gastrostomy procedures. Niger J Clin Pract 2022; 25(9): 1490-4.