Transmuscular Quadratus Lumborum Block for Postoperative Pain After Laparoscopic Adrenalectomy

Transmuscular Quadratus Lumborum Block for Postoperative Pain After Laparoscopic Adrenalectomy

This prospective, randomized control study aims to compare the analgesic effect, satisfaction with anesthesia and analgesia between single-injection QLB (quadratus lumborum block)+general anesthesia (GA) and general anesthesia (GA) alone in patients undergoing laparoscopic adrenalectomy.

Inclusion Criteria:

• Age 18-70 yrs
• American Society of Anesthesiologists physical statusⅠ-Ⅲ
• Undergo laparoscopic adrenalectomy
• Informed consent

Exclusion Criteria:

• a known allergy to the medications being used for anesthesia
• coagulopathy or on anticoagulants
• chronic opioid therapy or history of substance abuse
• participating in another RCT
• inability to properly describe postoperative pain to investigators (e.g., language barrier, neuropsychiatric disorder).