Tehran University of Medical Sciences

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Faculty Members have conducted research related to the Dexmedetomidine Versus Ketamine Combined With Fentanyl for Sedation-Analgesia in Colonoscopy Procedures: A Randomized Prospective Study
Mohammad Reza Khajavi
Mohammad Reza Khajavi

Professor of Anesthesiology

Department Anesthesiology

School of Medicine

Sina Hospital

Urology Research Center

Tehran University of Medical Sciences

All Documents
1. The Effects of Intraperitoneal Dexmedetomidine in Comparison With Ropivacaine in Postoperative Pain After Laparoscopic Sleeve Gastrectomy: A Double-Blind, Randomized, Placebo-Controlled, Clinical Trial, Obesity Surgery (2025)
2. A Non-Inferiority Study of the Speed and Success of Nasotracheal Intubation in Maxillofacial Surgeries Using Macintosh Direct Laryngoscope Versus Sanyar® Video Laryngoscope, Archives of Anesthesiology and Critical Care (2024)
3. Effect of Diphenhydramine-Propofol Versus Ketamine-Propofol in Improving Quality of Deep Sedation in Male Patients Undergoing Rigid Cystoscopy: A Comparative Study, Translational Research in Urology (2024)
4. Intraoperative Administration of Diphenhydramine Attenuates Postoperative Catheter Related Bladder Discomfort in Patient Following Percutaneous Nephrolithotomy, Archives of Anesthesiology and Critical Care (2024)
5. Scalp Nerve Block for Enhanced Pain Control and Analgesic Optimization in Elective Craniotomy: A Randomized Controlled Trial With Analgesia Nociception Index Monitoring, World Neurosurgery (2024)
6. Successful Treatment of Pulmonary Embolism Causing Cardiac Arrests With Reteplase During Neurosurgery: A Case Report, Archives of Anesthesiology and Critical Care (2024)
7. Comparative Analysis of Patient Satisfaction and Sedation Outcomes in Bronchoscopy: Fentanyl/Chlorpheniramine Vs. Ketamine/Chlorpheniramine, Acta Medica Iranica (2023)
8. Evaluation and Comparison of Two Different Combined Regimens for Prophylaxis of Nausea and Vomiting After Laparoscopic Bariatric Surgery: A Double-Blinded Randomized Clinical Trial, Acta Medica Iranica (2023)
9. Evaluation of the Role of Hemoperfusion on Mortality and Morbidity in Patients With Severe Coronavirus Disease 2019 (Covid- 19), Archives of Anesthesiology and Critical Care (2023)
10. Evaluation of Thyromental Height Test for Predicting Difficult Laryngoscopy in Morbid Obese Patients Candidate for Bariatric Surgery: An Observational Study, Acta Medica Iranica (2023)
11. Intraoperative Administration of Methadone Reduced Postoperative Pain and Opioid Consumption Following Ca-Daveric Renal Transplantation: A Randomized Controlled Trial, Frontiers in Emergency Medicine (2023)
12. Sanyar Video Laryngoscope Improved Time and First Pass Success of Tracheal Intubation in Intensive Care Unit in Compared to Direct Laryngoscopy, Archives of Anesthesiology and Critical Care (2023)
13. The Impact of Heparin Therapy in Deceased Donors on Early Graft Survival for Kidney and Liver Recipients: A Clinical Trial Study, Frontiers in Bioscience - Scholar (2023)
14. Dexamethasone Treatment in Patients With Severe Covid-19: A Propensity Score-Matched Study, Acta Medica Iranica (2022)
15. Early Clinical Experience With a New Video Laryngoscope (Sanyar®) for Tracheal Intubation in Adults: A Comparison Clinical Study, Frontiers in Emergency Medicine (2022)
16. Evaluation of the Success Rate and Quality of Teaching of Tracheal Intubation to Medical Students by Using Video Laryngoscope, Tehran University Medical Journal (2022)
17. Prophylactic Administration of Diphenhydramine/Paracetamol Reduced Emergence Agitation and Postoperative Pain Following Maxillofacial Surgeries: A Randomized Controlled Trial, European Archives of Oto-Rhino-Laryngology (2022)
18. Association of Clinical Characteristics, Antidiabetic and Cardiovascular Agents With Diabetes Mellitus and Covid-19: A 7-Month Follow-Up Cohort Study, Journal of Diabetes and Metabolic Disorders (2021)
19. Comparison of Intraoperative Infusion of Remifentanil Versus Fentanyl on Pain Management in Patients Undergoing Spine Surgery: A Double Blinded Randomized Clinical Trial, Anesthesiology and Pain Medicine (2021)
20. Dexmedetomidine Versus Propofol in Combination With Fentanyl for Sedation-Analgesia in Colonoscopy Procedures: A Randomized Prospective Study, Middle East Journal of Digestive Diseases (2021)
21. Monitoring Temperature in Children Under General Anesthesia: Nasopharynx Versus Carotid Artery Surface, Acta Medica Iranica (2021)
22. Nasogastric Tube Insertion in Intubated Patients With the Guide of Wire Rope: A Prospective Randomised Controlled Study, International Journal of Clinical Practice (2021)
23. Nasopharyngeal Tube Placement in Emergency Intubated Patients With Decreased Consciousness With a New Guidewire: A Prospective Randomized Controlled Trial; [بررسی میزان موفقیت قرار دادن لوله بینی-معده در بیماران کاهش سطح هوشیاري و اینتوبه در بخش یک مطالعه کنترل شده تصادفی آیندهنگر: (Steel Wire Rope)اورژانس با کمک گایدوایرجدید], Tehran University Medical Journal (2021)
24. Prophylactic Administration of Diphenhydramine/Acetaminophen and Ondansetron Reduced Postoperative Nausea and Vomiting and Pain Following Laparoscopic Sleeve Gastrectomy: A Randomized Controlled Trial, Obesity Surgery (2021)
25. The Effect of Digital Nerve Block on the Accuracy of Hemoglobin Monitoring During Surgery: A Randomized Clinical Trial, Acta Anaesthesiologica Belgica (2021)
26. Early Respiratory Outcomes Following Cardiac Surgery in Patients With Covid-19, Journal of Cardiac Surgery (2020)
27. Half Saline-Bicarbonate Solution As Intraoperative Fluid Replacement Therapy Leads to Less Acidosis and Better Early Renal Function During Deceased-Donor Transplant, Experimental and Clinical Transplantation (2020)
28. The Effect of Intraoperative Ketamine and Magnesium Sulfate on Acute Pain and Opioid Consumption After Spine Surgery, Acta Medica Iranica (2020)
29. Dexmedetomidine Versus Ketamine Combined With Fentanyl for Sedation-Analgesia in Colonoscopy Procedures: A Randomized Prospective Study, Acta Medica Iranica (2019)
30. Diphenhydramine Definitely Suppresses Fentanyl-Induced Cough During General Anesthesia Induction: A Double-Blind, Randomized, and Placebo-Controlled Study, Acta Medica Iranica (2019)
31. Low-Dose Preoperative Pregabalin Improves Postoperative Pain Management in Septorhinoplasty Surgery: A Double-Blind Randomized Clinical Trial, European Archives of Oto-Rhino-Laryngology (2019)
32. Prevalence of Abnormal Methemoglobinemia and Its Determinants in Patients Receiving Nitroglycerin During Anesthesia, Anesthesiology and Pain Medicine (2019)
33. Severity of Mitral Regurgitation Before and After Kidney Transplantation, International Journal of Organ Transplantation Medicine (2019)
34. The Efficacy of Intraoperative Ketamine-Haloperidol for Prevention of Catheter-Related Bladder Discomfort After Lumbar Spinal Stenosis Surgery, Oman Medical Journal (2019)
35. Comparison of the Effect of Intra-Rectal Administration of Lidocaine Gel and Lidocaine Plus Fentanyl on Pain Reduction in Prostate Biopsy: A Randomized Clinical Trial, Anesthesiology and Pain Medicine (2018)
36. Prognostic Value of Hemoglobin Concentration and Graft Vein Blood Oxygenation on Renal Transplant Outcomes, Experimental and Clinical Transplantation (2018)
37. A Comparison of the Effects of Low and High Doses of Aminophylline on Recovery Time and the Bispectral Index Score Following Iso Flurane Anesthesia, Iranian Red Crescent Medical Journal (2017)
38. Comparison Effect of Promethazine/Dexamethasone and Metoclopramide/Dexamethasone on Postoperative Nausea and Vomiting After Laparascopic Gastric Placation: A Randomized Clinical Trial, Anesthesiology and Pain Medicine (2017)
39. Comparison of Arterial Oxygenation Following Head-Down and Head-Up Laparoscopic Surgery, Anesthesiology and Pain Medicine (2017)
40. Effects of Combined Prokinetic Administration on Gastric Emptying in Critically Ill Patients, Arab Journal of Gastroenterology (2017)
41. The Effect of Nephrostomy Tract Infiltration of Ketamine on Postoperative Pain and Peak Expiratory Flow Rate in Patients Undergoing Tubeless Percutaneous Nephrolithotomy: A Prospective Randomized Clinical Trial, Urolithiasis (2017)
42. The Effect of Osmotherapy and Tight Control of Acidosis on Early Graft Function Among Deceased- Donor Kidney Transplant Recipients: A Randomized Controlled Trial, International Journal of Organ Transplantation Medicine (2017)
43. An Assessment of Intubation Skill Training in Novice Anesthesiology Residents of Tehran University of Medical Sciences With the Use of Mannequins, Anesthesiology and Pain Medicine (2016)
44. Analgesic Efficacy of Nephrostomy Tract Infiltration of Bupivacaine and Ketamine After Tubeless Percutaneous Nephrolithotomy: A Prospective Randomized Trial, Iranian Journal of Pharmaceutical Research (2016)
45. Application of Awake Craniotomy and Intraoperative Brain Mapping for Surgical Resection of Insular Gliomas of the Dominant Hemisphere, World Neurosurgery (2016)
46. Combined Ketamine-Tramadol Subcutaneouswound Infiltration for Multimodal Postoperative Analgesia: A Double-Blinded, Randomized Controlled Trial After Renal Surgery, Anesthesiology and Pain Medicine (2016)
47. Evaluation of Postoperative Analgesic Effects of Gabapentin and Ketorolac After Orthognathic Surgeries, Tehran University Medical Journal (2016)
48. Local Administration of Tranexamic Acid During Prostatectomy Surgery: Effects on Reducing the Amount of Bleeding, Nephro-Urology Monthly (2016)
49. Multimodal Analgesia With Ketamine or Tramadol in Combination With Intravenous Paracetamol After Renal Surgery, Nephro-Urology Monthly (2016)
50. Comparison of Aptt and Ct Parameter of the Rotem Test to Monitor Heparin Anti-Coagulation Effect in Icu Patients: An Observational Study, Acta Medica Iranica (2015)
51. Effect of Magnesium on Functional Outcome and Paraclinical Parameters of Patients Undergoing Supratentorial Craniotomy for Brain Tumors: A Randomized Controlled Trial, Acta Neurochirurgica (2015)
52. Effects of Laparoscopic Gastric Plication (Lgp) in Patients With Type 2 Diabetes, One Year Follow-Up, Journal of Diabetes and Metabolic Disorders (2015)
53. Effects of Ropivacaine on Postoperative Pain and Peak Expiratory Flow Rate in Patients Undergoing Percutaneous Nephrolithotomy, Nephro-Urology Monthly (2015)
54. Intrarectal Lidocaine-Diltiazem-Meperidine Gel for Transrectal Ultrasound Guided Prostate Biopsy, Anesthesiology and Pain Medicine (2015)
55. The Comparison of Procalcitonin Guidance Administer Antibiotics With Empiric Antibiotic Therapy in Critically Ill Patients Admitted in Intensive Care Unit, Acta Medica Iranica (2015)