Laparoscopic Bariatric Surgery and Erector Spinae Plane Block

Comparison of the Efficacy of Ultrasound-guided Erector Spinae Plane Block for Postoperative Analgesia in Patients Undergoing Laparoscopic Bariatric Surgery

The aim of the study is to evaluate the effect of erector spinae plane (ESP) block on postoperative analgesic consumption in patients undergoing laparoscopic bariatric surgery

Laparoscopic sleeve gastrectomy is one of the most common surgical procedure that is chosen for bariatric surgery. Postoperative pain after bariatric surgery can de significant. Narcotic analgesics are often used to manage the postoperative pain in patients undergoing bariatric surgery. However, these drugs causes many undesirable adverse effects such as nausea, constipation, and respiratory depression.

The ultrasound (USG) guided ESP block was first defined in 2016. With the administration of local anesthesia between the transverse process of the vertebra and the erector spinae muscle, it is stated that the effect mechanism of ESP is that spread blocks the ventral and dorsal rami to the paravertebral area. In the literature, it has been shown that bilateral USG guided ESP block provides effective analgesia after bariatric surgery.

The aim of the study is to evaluate the effect of ESP block on postoperative analgesic consumption in patients undergoing laparoscopic bariatric surgery

Inclusion Criteria:

• elective bariatric surgery
• American Society of Anesthesiology (ASA) II-III
• 18 - 65 years
• body mass index (BMI) 40-60 kg/m2

Exclusion Criteria:

• ASA ≥4
• under 18 years of age or over 65 years of age
• declining to give written informed consent
• have neurological and/or psychiatric disorders
• cooperation cannot be established
• accompanying laparoscopic cholecystectomy or paraumbilical hernia repair
• history of bariatric surgery
• the block cannot be applied due to bleeding disorders or localized skin infection at the injection site
• with hepatic, neuromuscular, cardiac and/or renal failure
• history of allergy to the local anesthetics
• patients undergoing open surgery