Comparison of Paravertebral Block and Subcostal Transversus Abdominis Plane Block in Laparoscopic Nephrectomy

Most of the patients undergoing laparoscopic partial/radical nephrectomy can experience moderate or severe postoperative pain, and inadequate control of this pain can cause negative consequences such as development of chronic pain, pulmonary and cardiac events, and side effects of long term opioid usage. Due to these adverse outcomes, ultrasonography-guided plane blocks can be beneficial for these patients to decrease opioid consumption. In this study, we aim to compare ultrasonography-guided plane blocks: Paravertebral block and subcostal transversus abdominis plane block and traditional method: patient controlled analgesia with opioids. We hypothesized that analgesic efficacy in both paravertebral and subcostal TAP blocks will have similar outcomes but better than traditional method.

Inclusion Criteria:Age of 18-75Patients who are ASA (American Society of Anesthesiology): I-IIPatients who will have laparoscopic partial/radical nephrectomyPatients who volunteer to participate in the studyExclusion Criteria:Patients with any kind of coagulopathyPatients with severe cardiac, pulmonary, renal or liver diseasePatients who have difficulty comprehending the IV PCA devicePatients with local anesthetic allergyPatients with chronic opioid use