Quadratus Lumborum Block : Effect on Acute Pain and Quality of Recovery After Laparoscopic Adrenalectomy

Quadratus Lumborum Block : Effect on Acute Pain and Quality of Recovery After Laparoscopic Adrenalectomy

This prospective, randomized ,control study aims to compare the analgesic effect,quality of recovery, length of hospital stay ,et al. 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 drugs being used
• Coagulopathy, on anticoagulants
• Analgesics intake, history of substance abuse
• Participating in the investigation of another experimental agent
• Inability to properly describe postoperative pain to investigators (eg, language barrier, neuropsychiatric disorder)