Laparoscopic cholecystectomy (LC) is one of the commonly performed surgical procedures associated with a moderate degree of postoperative pain especially on the 1st postoperative day. Adequate postoperative analgesia allows early patient ambulation, decreases analgesic requirements, and hospital stay. Moreover, it has been hypothesized that intense acute pain after LC may predict development of chronic pain (e.g., post laparoscopic cholecystectomy syndrome). So, aggressive perioperative analgesia is needed. the aim of the study is To compare the analgesic effect of magnesium sulfate combined with bupivacaine versus bupivacaine combined dexmedetomidine via OSCTAB block on postoperative pain control for 24 hours in patients scheduled for LC.
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post operative ( NRS score
Timeframe: 24 hours