Ultrasound Guided Erector Spinae Plane Block for Postoperative Analgesia in Laparoscopic Cholecystectomy Patients; Randomised, Controlled Prospective Study

Laparoscopic interventions are considered as minimally invasive procedures. They have both cosmetic and open surgery advantages in terms of surgical stress. Laparoscopic cholecystectomy is the most commonly performed laparoscopic upper abdominal procedure. After this procedure, patients often complain of excessive pain. Non-steroidal anti-inflammatory agents and opioids are used for postoperative analgesia. In addition, in the past decade, in the guideline of ultrasonography, peripheral block types with analgesic activity have been described in laparoscopic cholecystectomies as well as in many operations on the development of regional anesthesia and analgesia techniques. It was reported that transverse abdominis plane (TAP) block provided effective analgesia in these cases in the first ultrasonography guideline of petit triangle region in 2010. Later studies on TAP block activity, drug doses and concentrations in laparoscopic cholecystectomies have been conducted. There are also publications indicating that TAP block has been applied to the subcostal region for more effective analgesia. The ESP block is a new block for the treatment of thoracic neuropathic pain. In the following process; ESP block thoracic and breast surgery, bariatric surgery, and upper abdominal surgeons have also been reported to provide effective postoperative analgesia .

The standard practice for post-operative pain management for laparoscopic cholecystectomy in Maltepe University Hospital consists of routine intravenous analgesic and rescue analgesics and in combination with patient-controlled analgesia (PCA).

Given the importance of providing adequate analgesia in upper abdomen surgery and lack of consensus amongst surgeons and anesthesiologists for the optimal analgesic technique, the investigators are proposing a prospective observational study to examine the analgesic efficacy of the ESP block in laparoscopic cholecystectomy as a potential analgesic technique. The investigators are hoping the results of this study will provide framework for future larger comparative studies.