Abstract— Adjuvant and hyperbaric Bupivacaine mixing in a single syringe before injecting the drugs intrathecally is an age old practice. It may cause intraoperative hemodynamic changes. Administering local anesthetic and the adjuvant separately may minimize these side effects. So this study was aimed to compare effect of administering hyperbaric Bupivacaine and Clonidine intrathecally as a mixture and sequentially in cases undergoing caesarean section (CS). This study conducted at a District Hospital of Rajasthan in year 2013. Cases undergoing elective caesarean sections were divided into two groups by chit box method each of two groups consists of 30 cases. One group (Group A) is given mixture of Clonidine (75 mcg) and hyperbaric Bupivacaine 0.5% (10 mg) intrathecally, whereas other Group B received Clonidine (75 mcg) followed by hyperbaric Bupivacaine 0.5% (10 mg) through separate syringes. It was found that duration of analgesia was significantly longer in Group B (466 ± 18.2 min) in which the drug was given sequentially than in Group A (334 ± 16 min). Likewise, the time to achieve highest sensory and complete motor block was significantly less in Group B than Group A. So it can be depicted that administering Clonidine and hyperbaric Bupivacaine in a sequential manner is better than mixing of the two drugs.
Key words: Clonidine, Hyperbaric Bupivacaine, Spinal Anaesthesia, Adjuvants, Caesarean Section
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