Erector Spinae Plane Block vs Quadratus Lumborum Block for Laparoscopic Nephrectomy
Ultrasound (US) guided Quadratus Lumborum Block (QLB) is performed at the level of the 12th rib, in the parasagittal oblique plane, at the L1-L2 level. As there are modifications of the block generally local anesthetic is given between quadratus lumborum (QL) and psoas major (PM) muscles (Anterior QLB). The QLB provides a sensory block between T7 - L1. Therefore, QLBs are used to provide postoperative analgesia for abdominal, obstetric, gynecologic, and urologic surgeries.

US-guided erector spinae plane block (ESPB) is performed at the level of the T11 transverse process. After visualization of the erector spinae (ES) muscle and the transverse process, local anesthetic is injected under the ES muscle. ESPB provides a sensory block of the anterior, posterior, and lateral thoracic and abdominal walls accordingly it's used for postoperative analgesia after thoracal wall repairs, thoracotomies, percutaneous nephrolithotomies, nephrectomies, and ventral hernia repairs.

This study aims to compare the effectiveness of US-guided ESPB and QLB on postoperative pain control after laparoscopic nephrectomy.
- EligibilityCriteria: Inclusion Criteria:  American Society of Anesthesiologists (ASA) classification I-II Scheduled for living donor laparoscopic nephrectomy under general anesthesia  Exclusion Criteria:  history of bleeding diathesis, receiving anticoagulant treatment, known local anesthetics and opioid allergy, infection of the skin at the site of the needle puncture, pregnancy or lactation, patients who refuse the procedure or participation in the study - HealthyVolunteers: No - Gender: All - MinimumAge: 18 Years - MaximumAge: 65 Years - StdAgeList: Adult, Older Adult