Gulhas, NurcinOzgul, UlkuErdil, FeraySanli, MukadderNakir, HamzaYologlu, SaimDurmus, Mahmut2024-08-042024-08-0420121840-22911986-8103https://hdl.handle.net/11616/95840Background: We aimed to assess the effectiveness of subanesthetic doses of ketamine on ephedrine requirement in patients scheduled for Cesarean section under spinal anesthesia. Methods: ASA I-II, 105, patients were enrolled in the study. Spinal anesthesia was achieved with 12.5 mg hyperbaric bupivacaine and 15 mu g fentanyl. Following spinal anesthesia, patients were randomly allocated to three groups. Group Placebo: 2 mL of intravenous physiological saline, Group Ketamine 0.25: 0.25 mg.kg(-1) of intravenous ketamine, and Group Ketamine 0.5: 0.5 mg.kg(-1) of intravenous ketamine was received. Results: The systolic and mean blood pressures were similar in the groups. There were no significant differences between the groups, number of hypotensive attacks, as well as the amount of ephedrine used. The sedation scores in Group Ketamine 0.25 and Group Ketamine 0.5 were significantly higher than Group Placebo (p=0.001) Conclusions: Subanesthetic dose of ketamine is not effective on decreasing ephedrine requirement in Cesarean section under spinal anesthesia.eninfo:eu-repo/semantics/closedAccessketaminematernal hypotensionspinal anesthesiaCesarean sectionArticle68287028762-s2.0-84868143076N/AWOS:000310816500037N/A