Comparison of bupivacaine (0.5%) and bupivacaine (0.5%) with dexmedetomidine (1 microgram/kg) in paravertebral block for inguinal hernia repair

Abstract

Background: Paravertebral block(PVB),for inguinal hernia repair has been found to be effective than conventional spinal anaesthesia in terms of anaesthetic and analgesic technique , early ambulation and better postoperative pain score. Bupivacaine, an amide local anaesthetic, having a slow onset of action, provides early onset , prolonged duration of analgesia and adequate sedation in case of PVB with an adjuvant dexmedetomidine ,a highly selective alpha2 adrenergic agonist. Aims: To compare the efficacy as well as onset and duration of sensory and motor block ,duration of post operative analgesia ,any complication of the drugs bupivacaine and a combination of bupivacaine with dexmedetomidine in paravertebral block for inguinal hernia repair. Material and Method: 60 patients aged between 18-60 yrs of ASA physical status I and II , randomized in two groups of 30 to receive bupivacaine (0.5%) 1mgkg—1 in control group A and bupivacaine (0.5%) 1mgkg —1combined with dexmedetomidine (1 μgkg—1) in study group B for PVB. Results: Gr A vs Gr B was significant (P