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.

The aim of this prospective randomized double-blind study is to compare the effectiveness of routine antiemetic prophylaxis for the prevention of intraoperative nausea and vomiting (IONV) in non-fasted parturients undergoing emergency cesarean section under spinal anesthesia. Nausea and vomiting are common complications during cesarean delivery performed under spinal anesthesia and may negatively affect maternal comfort and perioperative safety. The incidence of these symptoms may be particularly increased in emergency cesarean sections involving non-fasted (full-stomach) parturients. This study compares two commonly used antiemetic strategies, namely 5-hydroxytryptamine-3 (5-HT3) receptor antagonists and dopamine receptor antagonists, to determine their relative effectiveness in preventing IONV during surgery. The findings are expected to contribute to optimization of antiemetic prophylaxis protocols, improvement of maternal comfort, and reduction of perioperative complications associated with nausea and vomiting during emergency cesarean delivery.

This multicenter randomized controlled study will evaluate whether simplified and visually supported procedure-specific information cards improve patients' understanding of informed consent before selected interventional pain procedures. Adult patients scheduled for an eligible procedure will be randomly assigned in a 1:1 ratio to either a control group or an intervention group. All participants will receive the routine verbal explanation and the standard institution-approved informed consent form for the planned procedure. Participants in the intervention group will additionally receive an ethics committee-approved simplified and visually supported information card related to the planned procedure. Participants in the control group will not receive the additional information card. After the information and consent process, patient understanding will be assessed using a standardized teach-back form before the clinical procedure. The study will compare understanding between the two groups.

This single-center, prospective, parallel-group, 1:1 randomized controlled trial compares standardized verbal counseling with AI-assisted written patient information in adults with symptomatic hemorrhoidal disease receiving initial conservative/medical treatment. The primary objective is to determine whether AI-assisted written information improves complete treatment adherence at day 14. Secondary objectives include quality-of-life change, Patient Global Impression of Change, time to symptom improvement, change in pain/discomfort scores, change in bleeding, swelling, itching, and soiling symptoms, and unplanned repeat healthcare visits.

This single-center, prospective, 1:1 randomized, parallel-group controlled superiority trial compares standard verbal counseling with AI-assisted written patient information in adults with primary chronic anal fissure receiving initial medical/conservative treatment. The primary objective is to determine whether AI-assisted written information improves complete treatment adherence at day 14. Secondary objectives include pain and discomfort outcomes, Patient Global Impression of Change, HEMO-FISS-QoL change, stool form change, additional healthcare visits, transition to interventional treatment, and patient satisfaction.

This single-center prospective randomized parallel-group trial compares laser ablation and crystallized phenol application in adults with primary uncomplicated sacrococcygeal pilonidal sinus disease. The primary objective is to compare postoperative day 1 pain intensity between the two treatment methods. Secondary objectives include complete epithelialization by day 30, time to complete epithelialization, postoperative day 7 pain, duration of analgesic use, time to return to daily activities and work, early local complications, and 6-month recurrence.

This single-center prospective observational study aims to evaluate clinical outcomes, postoperative pain scores, complications, and patient satisfaction in adults undergoing laser hemorrhoidoplasty for symptomatic internal hemorrhoidal disease. Additional objectives are to assess the relationship between hemorrhoid stage, dominant presenting symptoms, operative technical details, and postoperative outcomes. No study-specific intervention beyond routine clinical care and follow-up will be performed.

The primary aim of this study was to investigate the effects of the external oblique intercostal plane block and the subcostal transversus abdominis plane block on postoperative pain scores and opioid consumption in patients undergoing laparoscopic sleeve gastrectomy.

Acute appendicitis is one of the most common surgical emergencies, but diagnostic uncertainty may still lead to unnecessary appendectomy in some patients. This prospective observational study aims to evaluate the diagnostic performance of computed tomography (CT) reporting and the Appendicitis Inflammatory Response (AIR) score in adult patients undergoing appendectomy for suspected acute appendicitis. The primary objective is to determine the negative appendectomy rate based on final histopathology. Secondary objectives are to assess the agreement between AIR score, CT findings, intraoperative severity grading, and pathology results, and to explore diagnostic performance across patient subgroups. No study-specific intervention beyond routine clinical care will be performed.

Sliding sign will be checked by ultrasonography by transabdominal and transvaginal route before operation of patients that had cesarean section three or more. During cesarean section adhesions will be evaluated and noted. The correlation and predictive values of adhesion and sliding sign will be defined in our study.