Article PDF :

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Article type :

Original Article

Author :

Radha Korumbil Raghavan, Ushakumary Reghunathan, Bindu Meleveethil, Anis Jassir Meleveettil

Volume :

3

Issue :

4

Abstract :

Background and Aims: Postoperative analgesia after intrathecal bupivacaine is limited to a few hours. The aim of this study was to assess the effects of intrathecal Neostigmine added to hyperbaric bupivacaine on the onset and duration of spinal anaesthesia and in prolonging postoperative analgesia. Methods: A prospective, randomized double blind study was conducted in 90 patients of ASA grades I and II, in three groups of 30 each, scheduled for lower limb surgeries under subarachnoid block.  Patients in Group 1 received 0.5% hyperbaric Bupivacaine 2.5ml (12.5mg) 0.1ml of sterile normal saline, Group 2 received 0.5% hyperbaric Bupivacaine 2.5ml (12.5mg) 0.05ml Neostigmine (25mg) 0.05 ml sterile normal saline and Group 3 received 0.5% hyperbaric Bupivacaine 2.5ml 0.1ml Neostigmine (50mg). The onset and duration of sensory and motor block, time of two segment regression of sensory block,   postoperative analgesia and side effects were studied.  Results: The mean onset time of sensory and motor block were comparable in the three groups. The sensory and motor block were prolonged by the addition of Neostigmine, of which adding 50mg Neostigmine was found to be statistically significant (p value