Comparative Study of Injection Butorphanol Versus Injection Fentanyl with Injection Ropivacaine in Ultrasound Guided Supraclavicular Block to Evaluate Sensory and Motor Block Characteristics

BACKGROUND Regional anaesthetic technique has many advantages over general anesthesia. The supraclavicular brachial plexus block due to its rapid onset and reliability offers dense anesthesia of brachial plexus for surgeries at or distal to elbow. The additives like injection Fentanyl and injection Butorphanol along with 0.5% injection Bupivacaine have been proved to be efficient for supraclavicular block. However their effects haven't been compared by using them as additives in 0.5% Injection Ropivacaine. Aims To compare the sensory and motor block characteristics of injection Butorphanol and injection Fentanyl in injection Ropivacaine. METHODS This prospective single blinded randomised control study included 60 patients (ASA I or II; 18- 60 yrs) scheduled for upper limb surgeries. Patients were randomly allocated to two groups of 30 each and supraclavicular block was given as per distribution (Group B: 30 ml 0.5 % injection Ropivacaine with 2mg injection Butorphanol and Group F: 30 ml 0.5 % injection Ropivacaine with 100 mcg injection Fentanyl). The hemodynamic parameters were recorded at baseline, post block and till 45 mins. Sensory and motor block assessments were done along with sedation score determination. Duration of sensory and motor block was noted. RESULTS The group with injection Fentanyl as additive had earlier onset of motor blockade. Time required to achieve sensory blockade was less in Group F. Duration of sensory and motor block prolonged in Group F. CONCLUSIONS Injection Fentanyl as additive in injection Ropivacaine provided earlier onset of motor block and decreased total time required to achieve maximum sensory block with prolonged duration and decreased requirements of rescue analgesia.