| Not Yet Recruiting | Saudi Emergency Laparotomy Audit NCT07429929 | King Faisal Specialist Hospital & Research Center | — |
| Recruiting | A National Study Examining the Most Effective Drainage Method After Burr Hole Evacuation of Chronic Subdural H NCT06621407 | Aalborg University Hospital | N/A |
| Not Yet Recruiting | EIT Evaluation of Pulmonary Ventilation With Different Ropivacaine Concentrations in Intercostal Nerve Blockad NCT07079436 | Fudan University | N/A |
| Recruiting | Detection of Health Risk Situations in the Anesthesia Consultation. NCT06724380 | Consorci Sanitari de l'Alt Penedès i Garraf | — |
| Enrolling By Invitation | Artificial Intelligence in Surgical Practice in Sudan: National Survey of Doctors NCT07138105 | Sudan Medical Specialization Board | — |
| Completed | Artificial Intelligence for Surgical Care in War-Torn Sudan: Feasibility, Barriers, and Ethical Perspectives NCT07149012 | Sudan Medical Specialization Board | — |
| Not Yet Recruiting | Polihexanide SSIs Measures Bundle (PSMB) During Enhanced Recovery After Major Digestive Surgery NCT06338163 | Marco Catarci | Phase 4 |
| Recruiting | National Emergency Bariatric Surgery Audit NCT06738004 | Bedfordshire Hospitals NHS Foundation Trust | — |
| Completed | The Impact of the COVID-19 Pandemic on the Patient in Need of an Intervention NCT05736822 | University Medical Center Groningen | — |
| Terminated | Probiotics Supplementation and Intestinal Microbiome in Neonates With Gastrointestinal Surgery NCT03266315 | University of Calgary | N/A |
| Completed | The 3P Trial: Preoperative Planning and Preparation of Complex and Rare Procedures in GI Surgery NCT04097054 | University Hospital, Basel, Switzerland | N/A |
| Active Not Recruiting | Effects of Preoperative Multidisciplinary Team Meetings for High-risk, Adult, Noncardiac Surgical Patients NCT05703230 | Rijnstate Hospital | N/A |
| Recruiting | Comparisons of Metabolic Effect of Sleeve Gastrectomy With Duodenojejunal Bypass and Sleeve Gastrectomy (MEDUS NCT05211375 | Seoul National University Bundang Hospital | Phase 3 |
| Completed | Medtronic Signia SDR Product Surveillance Registry NCT05095935 | Medtronic | — |
| Completed | Changes in Coagulation in Colorectal Cancer Patients Undergoing Surgical Treatment NCT04744688 | University of Aarhus | — |
| Unknown | Evaluation of Pain Trajectories After Surgery and Their Potential Relationship With Chronicity at 3 Months NCT05326737 | Centre Hospitalier Universitaire de Nīmes | — |
| Completed | Postoperative Vasopressor Usage: SQUEEZE NCT03805230 | European Society of Anaesthesiology | — |
| Completed | ETT Cuff Leak: TV Ratios NCT02768831 | Nationwide Children's Hospital | N/A |
| Completed | Impact of a Pharmacist-anesthesiologist Collaboration During Anesthesia Consultation on Prevention of Perioper NCT04013061 | Centre Hospitalier Universitaire de Nīmes | N/A |
| Unknown | Postoperative Continuous Non-invasive Haemodynamic Monitoring on the Ward NCT04010058 | Royal Surrey County Hospital NHS Foundation Trust | N/A |
| Completed | The Excess Opioid Disposal Study NCT03694899 | Dartmouth-Hitchcock Medical Center | N/A |
| Completed | EEG - Guided Anesthetic Care and Postoperative Delirium NCT03330236 | Yale University | N/A |
| Completed | Postoperative Pain in Adult Patients. NCT03731039 | Andrzej Frycz Modrzewski Krakow University | — |
| Completed | Characterization of Post-operative Pain Trajectories Over Seven Days and Links With Chronicity NCT02599233 | Centre Hospitalier Universitaire de Nīmes | — |
| Completed | The T REX Pilot Study: a Study to Investigate the Use of an Alternative Anaesthetic in Infants. NCT02353182 | Murdoch Childrens Research Institute | Phase 4 |
| Completed | Determining Universal Processes Related to Best Outcome in Emergency Gastrointestinal Surgery: an Internationa NCT02179112 | University of Edinburgh | — |
| Completed | POPULAR: POst-operative PULmonary Complications After Use of Muscle Relaxants in Europe NCT01865513 | European Society of Anaesthesiology | — |
| Completed | Boston Children's Hospital Post Anesthesia Care Unit Outcomes Study NCT02189642 | Boston Children's Hospital | — |
| Completed | Evaluation of Efficacy and Accuracy of a Cordless Ultrasonic Dissection System NCT01929928 | Wake Forest University Health Sciences | — |
| Recruiting | Product Surveillance Registry NCT01524276 | Medtronic | — |
| Completed | Dexmedetomidine and Long-term Outcome in Elderly Patients After Surgery NCT02809937 | Peking University First Hospital | Phase 4 |
| Terminated | Arterial Pulse Waveform Contour Analysis for Intraoperative Goal Directed Therapy in Major Spine Surgery NCT01124474 | Loma Linda University | N/A |
| Completed | Arterial Pulse Waveform Contour Analysis for Intraoperative Goal Directed Therapy in Major Abdominal Surgery NCT01082614 | Loma Linda University | N/A |
| Completed | Outcomes and Safety Trial Investigating Ecallantide's Effect on Reducing Surgical Blood Loss Volume in Subject NCT00888940 | Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) | Phase 2 |
| Unknown | The Impact of Perioperational Malnutrition on the Cost on Gastroenterological Cancer Patients NCT00987883 | Peking Union Medical College Hospital | — |
| Completed | A Dose-ranging Safety and Efficacy Study of Ecallantide to Reduce Surgical Blood Loss Volume NCT00816023 | Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) | Phase 2 |
| Completed | A Prospective, Randomised Long-term Follow-up of Operative Versus Non-operative Treatment of Gr. 3 Acromioclav NCT00840593 | Kuopio University Hospital | N/A |
| Completed | Tracheal Colonization and Outcome After Major Abdominal Cancer Surgery NCT04002128 | Osijek University Hospital | N/A |
| Completed | Deployment of Functional Optical Brain Monitor [fNIR] in Clinical Anesthesia NCT00448877 | Drexel University College of Medicine | N/A |
| Completed | Postoperative Pain Course After Uvulopalatoplasty NCT00918437 | Ullevaal University Hospital | — |
| Completed | Psychological Influences on Postoperative Recovery NCT00581139 | University of California, Irvine | Phase 2 |
| Completed | The Impact of Perioperative Geriatric Care on Outcomes After Elective Noncardiac Surgery NCT02975375 | Ottawa Hospital Research Institute | — |