ORIGINAL ARTICLE
Year : 2013  |  Volume : 7  |  Issue : 3  |  Page : 283-290

The effect of addition of intrathecal clonidine to hyperbaric bupivacaine on postoperative pain after lower segment caesarean section: A randomized control trial


Department of Anaesthesiology and Critical Care, Lady Hardinge Medical College and Shrimati Sucheta Kriplani Hospital, New Delhi, India

Correspondence Address:
Ranju Singh
B-2/532, Ekta Gardens, I.P. Extension, Patparganj, Delhi - 110 092
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-354X.115360

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Background: Intrathecal clonidine prolongs spinal anesthesia but the optimum dose to be used in cesarean delivery is not yet known. We evaluated the effect of addition of intrathecal clonidine to hyperbaric bupivacaine on postoperative pain after lower segment caesarean section. Methods: A total of 105 parturients carrying a singleton fetus at term, scheduled to undergo elective LSCS under spinal anesthesia were randomized in a double blind fashion to one of the three groups. Group BF (n=35) received 2 ml of 0.5% hyperbaric bupivacaine+25 μg fentanyl, Group BC 50 (n=35) received 2 ml of 0.5% hyperbaric bupivacaine+50 μg clonidine, Group BC 75 (n=35) received 2 ml of 0.5% hyperbaric bupivacaine+75 μg clonidine. Results: The duration of postoperative analgesia was 184.73±68.64 min in group BF, 360.71±86.51 min in group BC 50 and 760.50±284.03 min in group BC 75 , P0<0.001. The incidence of hypotension was comparable, P =0.932, whereas the incidence of nausea and pruritis was significantly lower in groups BC 50 and BC 75 as compared to group BF, P <0.001. No other side effects of intrathecal clonidine were detected. Neonatal outcome was similar in all the three groups. Conclusions: Addition of 75 μg clonidine to hyperbaric bupivacaine in spinal anesthesia for LSCS significantly prolongs the duration of postoperative analgesia without any increase in maternal side effects. There was no difference in neonatal outcome.


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