Endoscopy Clinical Trials

This prospective, randomized, single-center, single-blind study aims to evaluate the effects of video-based preoperative education on physician trust, postoperative pain, anxiety, and opioid consumption in patients undergoing elective laparoscopic cholecystectomy under general anesthesia. Sixty-two ASA I-II patients aged 18-65 years will be randomized into two groups: standard verbal information alone or verbal information plus a standardized educational video regarding ultrasound-guided transversus abdominis plane (TAP) block. All patients will receive standardized general anesthesia, multimodal analgesia, and bilateral TAP block. The primary outcome will be physician trust assessed at postoperative 24 hours using the Trust in Physician Scale. Secondary outcomes include preoperative anxiety measured with the Amsterdam Preoperative Anxiety and Information Scale (APAIS), postoperative pain scores, opioid consumption, rescue analgesic requirement, and postoperative nausea and vomiting incidence. The study hypothesizes that video-based education will improve physician trust and perioperative patient-centered outcomes.