| Not Yet Recruiting | Haemodynamic Effects and Complications of Continuous Versus Single-shot Spinal Anaesthesia for HIP Fracture Su NCT07358299 | Centre of Postgraduate Medical Education | Phase 4 |
| Not Yet Recruiting | D-FAB-POUR Trial: Dexmedetomidine vs Fentanyl as Adjuvants to Bupivacaine on Postoperative Urinary Retention NCT07117565 | Tribhuvan University Teaching Hospital, Institute Of Medicine. | Phase 4 |
| Not Yet Recruiting | Anesthesia Modality and Oncologic Outcomes in High-Risk NMIBC: A Randomized Trial NCT06982690 | National Taiwan University Hospital | N/A |
| Completed | Jugular Ultrasound for Spinal Hypotension NCT07000188 | Cairo University | — |
| Recruiting | Post-Operative Urinary Retention on Revision Knee Arthroplasty: the Role of Intrathecal Morphine NCT07050277 | University of Toronto | Phase 3 |
| Recruiting | Effect of Anesthesia Techniques on Quality of Recovery Scores in HOLEP Surgery NCT07020390 | TC Erciyes University | — |
| Recruiting | Comparing the Safety and Effectiveness of Different Doses of Morphine Administered in Spinal Anethesia for Pai NCT06878014 | Medical University of Silesia | Phase 4 |
| Completed | Norepinephrine vs. Phenylephrine for Spinal Hypotension in Cesarean Section NCT07153601 | Universitas Sumatera Utara | N/A |
| Recruiting | Intrathecal Dexmedetomidine vs Epinephrine NCT06418308 | Icahn School of Medicine at Mount Sinai | Phase 4 |
| Recruiting | Testing the Feasibility of Using Ropivacaine in Spinal Anesthesia for Patients With Lower Back Surgery NCT05824338 | Fraser Health | EARLY_Phase 1 |
| Completed | Caval-aorta Index and Perfusion Index on Predict Hypotension After Spinal Anaesthesia in Elderly NCT06479512 | Ankara City Hospital Bilkent | — |
| Completed | Prediction of Hypotension Using Perfusion Index Following Spinal Anesthesia NCT06427382 | Ankara City Hospital Bilkent | — |
| Recruiting | Effect of Spinal Anesthesia in Elective Cesarean Cases on Frontal QRS Angle in Anemic and Non-Anemic Patients NCT06434870 | Sanliurfa Mehmet Akif Inan Education and Research Hospital | — |
| Recruiting | The Effects of General Versus Spinal Anesthesia on Postoperative Myocardial Injury NCT06343259 | Sisli Hamidiye Etfal Training and Research Hospital | N/A |
| Completed | Mepivacaine vs Bupivacaine Spinal Anesthesia for TKA NCT06291727 | Prisma Health-Upstate | Phase 4 |
| Completed | Abdominal Circumference Measure in Caesarian Section NCT06357637 | CHU Mohammed VI Marrakech | — |
| Completed | Effect of Aromatherapy on Preoperative Anxiety Level NCT05853744 | Mongi Slim Hospital | Phase 4 |
| Completed | The Effect of Low-dose Atropine on Sympathetic Blockade in Spinal Cesarean Section Patients NCT05892913 | Abant Izzet Baysal University | Phase 4 |
| Completed | The Effect of Spinal Anesthesia on Hemodynamics NCT05896631 | Ankara City Hospital Bilkent | N/A |
| Completed | Prediction of Hypotension During Cesarean Delivery Using Positional Change of Hemodynamic Parameters NCT05685212 | Mongi Slim Hospital | — |
| Completed | QT Changes in Geriatric Patients: a Comparison of Spinal and General Anesthesia NCT06375863 | Haseki Training and Research Hospital | N/A |
| Completed | Observational Retrospective Study on Spinal Analgesia in Laparoscopic and Laparotomic Hysterectomy NCT05654363 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | — |
| Completed | Comparison in Frequency of Hypotension Between Remimazolam and Propofol in Hip Surgery NCT05651399 | Asan Medical Center | Phase 4 |
| Completed | Ultrasound-assisted or Landmark-based Intrathecal Administration of Nusinersen in Adult Patients With Spinal M NCT05644899 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | — |
| Unknown | Conventional Palpation Versus Ultrasound Assisted Spinal Anesthesia in Obstetrics NCT05846100 | Mongi Slim Hospital | N/A |
| Completed | Effective Dose of Remimazolam for Sedation in Patients Undergoing Lower Extremity Surgery Under Spinal Anesthe NCT05379777 | Asan Medical Center | Phase 4 |
| Completed | The Effect of General and Spinal Anesthesia on Neutrophil-to-lymphocyte Ratio NCT05409885 | Antalya Training and Research Hospital | — |
| Completed | Dexmedetomine as Adjuvant for Spinal Anesthesia in Elective Cesarian Sections : a Pilot Study NCT05099055 | St. Justine's Hospital | Phase 3 |
| Completed | Changes in Cardiac Output During Cesarean Delivery Under Spinal Anesthesia NCT05269537 | Mansoura University | — |
| Completed | Different Noradrenaline Protocols in Post Spinal Hypotension in CS NCT04701190 | Ankara University | Phase 4 |
| Completed | Spinal Anaesthesia for Caesarean Section: Descriptive Multicentre Study NCT04719819 | University Hospital, Clermont-Ferrand | — |
| Unknown | Post Spinal Anesthesia Hypotension and Preoperative Hydration NCT04450667 | Brugmann University Hospital | N/A |
| Completed | Influence Of Low Dose Intrathecal Naloxone On Bupivacaine - Fentanyl Spinal Anaesthesia For Lower Limb Orthope NCT04673812 | Kasr El Aini Hospital | N/A |
| Completed | The Effect of Injection Rate of Local Anesthetic in Caesarean Section NCT05091294 | Karadeniz Technical University | N/A |
| Completed | Comparison of Two Analgesic Pretreatment Techniques Before Spinal Needle Insertion for Pain Reduction and Mate NCT04050059 | Aga Khan University | N/A |
| Suspended | Comparison of Clorotekal and Bupivacaine for Short Obstetric Surgery NCT03967288 | Oregon Health and Science University | Phase 4 |
| Completed | '' Abdominal Crunch Positions With the Others in Terms of Interspinous Distance in Adult Patients '' NCT04092478 | Konya Meram State Hospital | — |
| Unknown | A Study on Central Transport Characteristics of Flurbiprofen Axetil in Elderly Patients NCT04128410 | Yi Feng, MD | — |
| Completed | 1% Chloroprocaine(PF) vs. Bupivacaine Spinals NCT03324984 | Montefiore Medical Center | Phase 2 |
| Completed | Atropine or Ephedrine Pretreatment for Preventing Bradycardia in Elderly Patients NCT03984526 | Ajou University School of Medicine | Phase 4 |
| Terminated | Goal Directed Fluid Therapy Versus Liberal Fluid Regimen in Primary Elective Hip Artrhoplasty NCT04996420 | Istituto Ortopedico Rizzoli | N/A |
| Completed | Failure Rate in Spinal Blocks and Determination of Related Factors NCT03959644 | Bozyaka Training and Research Hospital | — |
| Completed | Ultrasound Image Study for Ultrasound-assisted Paramedian Spinal Anesthesia NCT03929874 | Seoul National University Hospital | — |
| Completed | Ultrasonography Versus Palpation for Spinal Anesthesia in Obese Parturients Undergoing Cesarean Delivery NCT03792191 | Mansoura University | N/A |
| Unknown | Combined Spinal-epidural Anesthesia for Cesarean Section Without Prophylactical Prehydration and Vasopressors NCT03497364 | Shenzhen People's Hospital | N/A |
| Completed | Midline vs. Paramedian Approaches for US-assisted Spinal Anesthesia NCT03491943 | Seoul National University Hospital | N/A |
| Completed | Ultrasound-assisted Versus Conventional Landmark-guided Spinal Anesthesia in Patients With Abnormal Spinal Ana NCT03459105 | Seoul National University Hospital | N/A |
| Completed | Comparison of the Efficacy of 0.5% Bupivacaine, 0.5% Levobupivacaine, and 0.5% Hyperbaric Bupivacaine NCT05184465 | Mogilev Regional Clinical Hospital | N/A |
| Completed | Ultrasound-assisted Versus Conventional Landmark-guided Paramedian Spinal Anesthesia in Elderly Patients NCT03316352 | Seoul National University Hospital | N/A |
| Withdrawn | GA/Spinal vs. GA/Spinal/NMB for Operative Repair of Hip Fracture NCT03226080 | Loyola University | Phase 4 |
| Completed | Effect of Intrathecal Fentanyl on Spinal Anesthesia During Dexmedetomidine Infusion NCT03105115 | Seoul National University Hospital | N/A |
| Unknown | Spinal Marginally Hyperbaric Ropivacaine for Cesarean Delivery NCT03142880 | Qilu Hospital of Shandong University (Qingdao) | N/A |
| Completed | Intrathecal Morphine Analgesia vs. Continuous Epidural Analgesia vs. Systemic Analgesia in Colorectal Surgery. NCT03007121 | Charles University, Czech Republic | Phase 4 |
| Completed | Ultrasound Prescan vs Conventional Landmark-guided Technique in Spinal Anesthesia in Orthopedic Obese Patients NCT03075488 | Istituto Ortopedico Rizzoli | N/A |
| Completed | Postoperative Urinary Retention in Orthopedic Patients NCT04298775 | Hospital de Clinicas de Porto Alegre | N/A |
| Completed | Mepivacaine vs. Bupivacaine Spinal Anesthetic in Total Knee Arthroplasty NCT02980926 | Henry Ford Health System | Phase 4 |
| Completed | Combined Colloid Preload And Crystalloid Coload Versus Crystalloid Coload During Spinal Anesthesia for Cesarea NCT02961842 | Mansoura University | N/A |
| Unknown | Bispectral Index(BIS) on Depth of Sedation With Dexmedetomidine, Propofol and Midazolam During Spinal Anesthes NCT03399019 | Hallym University Medical Center | N/A |
| Completed | Phenylephrine and Hypotension During Spinal Anesthesia for Cesarean Section NCT02958215 | Assiut University | Phase 2 |
| Completed | Alcohol 70% Versus Chlorhexidine 0.5% in the Spinal Anesthesia Skin Antissepsis NCT02833376 | Universidade do Vale do Sapucai | N/A |
| Completed | Cardiac Output Changes During Hyperbaric and Isobaric Bupivacaine in Patients Undergoing Cesarean Section NCT02737813 | Mahidol University | Phase 4 |
| Completed | Observation of Principal Hemodynamic Variables After Spinal Anesthesia With Non Invasive Hemodynamic Monitorin NCT03086603 | Istituto Ortopedico Rizzoli | — |
| Completed | Spinal Anesthesia for Outpatient Abdominal Wall Surgery: Comparison of Bupivacaine, 2-chloroprocaine and Prilo NCT02813382 | AZ St.-Dimpna Geel | — |
| Completed | Sedation by Dexmedetomidine and Propofol NCT02993718 | Seoul National University Bundang Hospital | N/A |
| Completed | Intrathecal Dexmedetomidine With Bupivacaine for Spinal Anesthesia in Cesarean Section NCT02365857 | Cairo University | Phase 4 |
| Unknown | Paradoxical Excitement Response During Sedation Between Dexmedetomidine and Propofol in Hazardous Alcohol Drin NCT02197403 | Chonnam National University Hospital | Phase 4 |
| Unknown | Comparison of Standard and Minidose Spinal Anesthesia for Cesarean Section Operation Using Marcaine Spinal 0.5 NCT01303731 | Bnai Zion Medical Center | Phase 4 |
| Completed | Prilocaine for Spinal Anesthesia in Ambulatory Setting NCT04161586 | Ospedale di Circolo - Fondazione Macchi | — |
| Completed | Different Approaches to Maternal Hypotension During Cesarean Section NCT00991627 | University of Parma | Phase 4 |
| Completed | Atropine to Prevent Nausea and Vomiting After Spinal Anesthesia for Caesarean Section NCT00921102 | University of Parma | Phase 4 |
| Completed | Ropivacaine Versus Bupivacaine for Spinal Anaesthesia in Patients Undergoing Unilateral Lower Limb Surgery NCT00358280 | AstraZeneca | Phase 3 |