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Year : 2022  |  Volume : 23  |  Issue : 2  |  Page : 98-104

A prospective randomized study to compare intrathecal isobaric levobupivacaine with or without fentanyl in various infraumbilical surgeries

Department of Anaesthesiology, J. L. N. Medical College, Ajmer, Rajasthan, India

Correspondence Address:
Dr. Deepak Kumar Garg
New OT, Department of Anaesthesiology, J.L.N. Hospital, Ajmer- 305001, Rajasthan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/TheIAForum.TheIAForum_2_22

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Background and Aims: Subarachnoid block is the most preferred anesthetic technique for infraumbilical surgeries as it provides better postoperative analgesia, effective muscle relaxation, and cost-effectiveness. Levobupivacaine is preferable over bupivacaine due to its lower cardiotoxicity, prolonged sensory block, and shorter duration of motor block. Opioids as an adjuvant to intrathecal local anesthetics enhance the quality of both analgesia and anesthesia during intraoperative as well as postoperative period. The present study aimed to compare levobupivacaine with and without fentanyl in spinal anesthesia. Methods: In this prospective, randomized, double-blinded study, a total of 80 patients belonging to the American Society of Anesthesiologists Physical Status I and II were enrolled for infraumbilical surgeries. Patients were randomly allocated into two groups. Group Levobupivacaine (L) (n = 40) received isobaric levobupivacaine 0.5% 2.5 ml with 0.5 ml normal saline and Group Levobupivacaine + fentanyl (LF) (n = 40) received isobaric levobupivacaine 0.5% 2.5 ml with fentanyl 25 μg (0.5 ml). Time of onset and duration of both sensory and motor block, Visual Analog Scale score, duration of analgesia, hemodynamic changes, and any adverse events were noted in both the groups. Results: The onset of both sensory and motor block was significantly faster in Group LF (P < 0.05). The duration of sensory block was significantly longer in Group LF (P < 0.05). The duration of motor block was found to be comparable between two groups with stable hemodynamics and no perioperative sedation (P > 0.05). The duration of analgesia was significantly longer in Group LF (336.5 ± 31.3 min) compared to Group L (223.65 ± 32.17 min) P < 0.001. Conclusion: Intrathecal fentanyl (25 μg) can be effectively used as an adjuvant to isobaric 0.5% levobupivacaine as it provides better block characteristics with minimal adverse effects in patients undergoing infraumbilical surgeries.

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