This prospective randomized controlled trial aims to compare the analgesic efficacy and effects on diaphragmatic function of bilateral erector spinae plane (ESP) block and bilateral rhomboid intercostal-subserratus plane (RISS) block in patients undergoing elective laparoscopic cholecystectomy. Postoperative pain scores, opioid consumption, diaphragmatic excursion, pulmonary function, and recovery outcomes will be evaluated.
Postoperative pain after laparoscopic cholecystectomy may impair respiratory function and delay recovery. Fascial plane blocks have emerged as effective opioid-sparing analgesic techniques. The erector spinae plane (ESP) block and rhomboid intercostal-subserratus plane (RISS) block are ultrasound-guided regional anesthesia techniques that may provide effective postoperative analgesia while preserving respiratory mechanics. This prospective randomized controlled study will compare bilateral ESP block and bilateral RISS block in adult patients undergoing elective laparoscopic cholecystectomy under general anesthesia. The primary objective is to compare postoperative analgesic efficacy and diaphragmatic function. Secondary outcomes include postoperative opioid consumption, pain scores at rest and during movement, pulmonary function parameters, rescue analgesic requirements, and adverse events.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
80
Bilateral ultrasound-guided erector spinae plane block performed before laparoscopic cholecystectomy for postoperative analgesia.
Bilateral ultrasound-guided rhomboid intercostal-subserratus plane block performed before laparoscopic cholecystectomy for postoperative analgesia.
Bursa City Hospital
Bursa, Nilüfer, Turkey (Türkiye)
RECRUITINGTotal Postoperative Tramadol Consumption
Total tramadol consumption during the first 24 hours after laparoscopic cholecystectomy.
Time frame: 24 hours after surgery
Postoperative Pain Scores
Postoperative pain scores assessed using the Numeric Rating Scale (NRS).
Time frame: 0-24 hours after surgery
Time to First Rescue Analgesia
Time from the end of surgery to first rescue analgesic requirement.
Time frame: 24 hours after surgery
Intraoperative Remifentanil Consumption
Total remifentanil consumption during surgery.
Time frame: During surgery
Opioid-Related Adverse Events
Incidence of nausea, vomiting, pruritus and other opioid-related adverse events.
Time frame: 24 hours after surgery
Block-Related Complications
Complications associated with ESP block or RISS block.
Time frame: 24 hours after surgery
Diaphragmatic Excursion
Right hemidiaphragm excursion measured by ultrasonography.
Time frame: Preoperative and postoperative 24 hours
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.