A comparative study of post-operative analgesia after caesarean section with intrathecal hyperbaric bupivacaine combined with different doses of buprenorphine

Background: Post-operative pain relief after caeserean section is challenging to both anesthetista and obstetricians. Injection buprenorphine can be used intrathecally for post operative analgesia. Aim: the aim of the study was to compare the efficacy of two different doses(30ug and 60ug) of buprenorphine intrathecally with hyperbaric bupivacaine for post operative pain relief in caserean section. Methods and Materials: A prospective randomised controlled study was done on 60 subjects undergoing elective casarean section where in two groups were made, Group A (n=30) and Group B (n=30) who received inj bupivacaine 0.5% hyperbaric 2ml plus inj buprenorphine 30ug and inj bupivacaine 0.5% hyperbric plus inj buprinorphine 60ug intrathecally respectively. Following parameters were observed, onset and duration of sensory block, postopertive pain measured on VAS(visual analogue scale),rescue analgesia requirement, maternal side effects. Results: Unpaired t test and Chi square test were used for statistical analysis. Duration of analgesia was longer significantly in group A compared to group B. rescue analgesia requirement and VAS were significantly lower in group A as compared to group B.No major side effects were seen. Conclusion: Increasing the dosage of buprenorphine intrathecally increased the duration and quality of post operative analgesia. with no major adverse effects.