Comparison of the Post- Operative Analgesia in Haemorrhoidectomy patients after Peripheral Block using DEXMEDETOMIDINE VS CLONIDINE

A study was conducted to compare the duration of post-operative analgesia in patients undergoing haemorrhoidectomy who are given pudendal nerve block with either Clonidine or Dexmedetomidine alongwith local anaesthetic Bupivacaine in the operation theatre of Sree Gokulam Medical College and Research Foundation, Venjaramoodu, Trivandrum, Kerala. 60 patients were randomly divided into two groups of 30 each -- group C underwent pudendal block with 20ml of 0.25% Bupivacaine with Clonidine 1mcg / kg as additive  and group D underwent pudendal block with 20ml of 0.25% Bupivacaine with Dexmedetomidine 1mcg/kg as additive . Complications like sedation, bradycardia and hypotension were also studied.  The data was entered in excel and analysed using SPSS 20.0 and compared using t test and chi square test. There was significant difference in the duration of post-operative analgesia between the two groups. The duration of analgesia in group C was 761 +/_ 19.1 minutes while in group D it was  1184.57 +/_ 151.374 minutes. In pudendal nerve block, addition of Dexmeditomidine as an adjuvant to 0.25% Bupivacaine prolongs the duration of post-operative analgesia and is not associated with any major side effects. Both drugs have an added advantage of conscious sedation and haemodynamic stability, making them potential adjuvants for nerve blocks.