術後疼痛管理とオピオイド節約のための腹横筋膜面ブロック：ランダム化比較試験の系統的レビューとメタアナリシス

This systematic review and meta-analysis evaluated the efficacy of transversus abdominis plane (TAP) block for postoperative pain management and opioid sparing in abdominal surgery. TAP block significantly reduced pain scores at 6, 12, and 24 hours postoperatively and reduced 24-hour cumulative morphine consumption compared to placebo. Compared to local infiltration anesthesia, TAP block also showed significant reductions. However, compared to epidural anesthesia, only 12-hour pain scores were reduced, and no significant difference was found compared to intrathecal morphine.