Abstract
Background and Aims:Recently, low-dose intravenous (IV) dexmedetomidine has been evaluated for obtunding the pneumoperitoneum-induced haemodynamic changes and its analgesic efficacy in laparoscopic cholecystectomy. The aim was to determine the postoperative analgesic efficacy of low-dose bolus of 0.5 μg/kg dexmedetomidine via IV and intraperitoneal (IP) route in laparoscopic cholecystectomy.Methods:Seventy-five patients, aged 18–60 years of ASA physical status I and II, undergoing laparoscopic cholecystectomy under general anaesthesia were included. Patients in Group C received IP bupivacaine. Patients in Group IV received 0.5 μg/kg dexmedetomidine infusion IV after removal of gall bladder along with IP bupivacaine and Group IP received 0.5 μg/kg dexmedetomidine in 40 mL of 0.25% bupivacaine IP. The primary outcome was 'time to first request of analgesia' and the secondary outcomes were 'total consumption of tramadol in 24 hours,' visual analogue scale (VAS) pain score.Results:In total, 75 patients with 25 in each group were included. Time to first request of analgesia was found to be significantly lower in IV (59.68 ± 71.05 min, P = 0.00) and IP group (90.80 ± 80.46 min, P = 0.001) compared tp Group C (59.68 ± 71.05 min). Mean tramadol consumption in 24 hours (152.40 ± 60.958 vs 137.64 ± 52.40 mg) and mean VAS pain score were comparable in both IV and IP groups in the initial 12 h.Conclusion:Low bolus dose of IP dexmedetomidine is as efficacious as IV dexmedetomidine (0.5 μg/kg) along with IP bupivacaine in laparoscopic cholecystectomy.
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