his study aims to investigate the effects of different volumes of ultrasound-guided erector spinae plane block (ESPB) on postoperative pain and opioid consumption in patients undergoing total abdominal hysterectomy. The researchers aim to determine whether varying the volume of local anesthetic in the ESPB can reduce the amount of morphine required by patients and improve pain scores during the first 24 hours after surgery.
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Total Morphine Consumption
Timeframe: First 24 hours postoperatively