Intrathecal Hyperbaric Ropivacaine Versus Bupivacaine for Ambulatory Infraumbilical Surgery

BACKGROUND ropivacaine has shown to produce a reliable and predictable anaesthesia for surgery. The present study was to compare the efficacy of hyperbaric ropivacaine with bupivacaine for spinal anaesthesia and its feasibility for surgical procedures. Evaluation of analgesia, muscular relaxation, haemodynamic changes and clinical efficacy of administered 0.5% hyperbaric ropivacaine in 5% glucose prepared aseptically prior to injection with commercially 0.5% hyperbaric bupivacaine containing 8% glucose at equimiligram doses of 17.5 mg. AND METHODS adult patients of ASA grade I-II scheduled for infraumbilical surgeries were randomly allocated to two groups to receive 3.5 mL of 0.5% hyperbaric ropivacaine in (Group R) or 0.5% hyperbaric bupivacaine (Group B). Onset and regression of and motor block, level of blockade and side effects were assessed. ropivacaine had a significant early regression of sensory and motor blockade (166.25±30.51 mins. and 155.40±30.20 .) than bupivacaine (270.35±40.72 mins. and 243.15±36.41 mins.). Ropivacaine had better haemodynamic stability, duration of analgesia and less side effects compared to bupivacaine. 17.5 mg of hyperbaric ropivacaine produces a reliable spinal anaesthesia of intermediate duration for ambulatory procedures.