A COMPARISON OF ULTRASOUND GUIDED SUPRACLAVICULAR BLOCK AND INFRACLAVICULAR BLOCK USING COSTOCLAVICULAR APPROACH FOR UPPER EXTREMITY SURGERY

Brachial plexus block through USG guided Supraclavicular or Infraclavicular approach is a commonly used anesthetic technique for Upper Extremity surgeries. Recently, utilization of costoclavicular space for infraclavicular block has been suggested as a suitable approach for brachial plexus block with various beneficial advantages. Objective: The present study is proposed to compare the efficacy of USG guided Supraclavicular and Costoclavicular blocks for upper extremity surgery. Methodology: Seventy ASA Grade I/II patients scheduled to undergo upper extremity surgery will be randomised either to ultrasound-guided costoclavicular approach of infraclavicular block (Group A) and supraclavicular block (Group B) respectively. All patients will be assessed for block success, onset time, sensory and motor block scores, duration of block, postoperative pain and need for rescue analgesic. Data will be analyzed using Statistical Package for Social Sciences (SPSS) version 21.0. Independent samples 't'-test, paired 't'-test, Mann-Whitney U test, Wilcoxon signed rank test and chi-square test will be used . Result: Onset Time: Group A(6.00 min median) vs. Group B (7.00 min median). Mean onset time (6.23 min vs. 6.63 min) was not significantly different (p = 0.119). Block Duration: Group B had slightly longer motor (357.43 min vs. 347.71 min) and sensory (400.86 min vs. 388.57 min) blocks, but differences were not statistically significant. Rescue Analgesia: First dose timing was similar between groups (Group A: 564.00 min vs. Group B: 570.00 min, p = 0.612). Pain Scores: At 12 hours, Group B had higher pain scores (2.00 vs. 1.83, p < 0.05). Other time points showed no significant differences. Satisfaction: No significant difference in satisfaction, with most patients being satisfied (Group A: 65.7%, Group B: 68.6%). Conclusion: No significant differences were found between the groups in terms of block onset, duration, or satisfaction, but Group B had slightly higher pain at 12 hours post-procedure.