Ultrasound Guided Erector Spinae Block Versus Quadratus Lumborum Block For Postoperative Pain ReliefFollowing Laparoscopic Nephrectomy

"Group Q; (28 patients) Quadratus lumborum block group; patients will receive general anesthesia initially then bilateral QLB type III (anterior subcoastal approach) with a volume of 30 mL of bupivacaine 0.25% for each side taking care that the patient does not receive a local anesthetic dose higher than the maximum allowed (2.5 mg/kg) \[9\].~✓ Group E; (28 patients) Erector spinae plane block; patients will receive general anesthesia initially then bilateral ESPB with a volume of 30 mL of bupivacaine 0.25 % for each side taking care that the patient does not receive a local anesthetic dose higher than the maximum allowed (2.5 mg/kg"