Abstracts interdisciplinary

Background:Informed consent is a fundamental ethical requirement and a legal obligation in all surgical procedures.It involves a clear, mutual understanding between the patient and the surgeon about the nature of the surgery, potential risks, benefits, and alternatives.However, the complexity of surgical procedures, especially liver resection, poses significant challenges to the informed consent process.Traditional methods, predominantly verbal explanations supplemented by static images, often fall short in adequately conveying the intricate details of the surgery.This gap in understanding can lead to anxiety, dissatisfaction, and a lack of informed decision-making among patients.Previous research has demonstrated that three-dimensional (3D) presentations improve the identification of liver anatomy and 3D liver model-based surgical education improves preoperative decision-making and patient satisfaction.Recent advancements in augmented reality (AR) and 3D visualization technologies offer a more dynamic and interactive way of presenting complex surgical information, potentially enhancing patient understanding and satisfaction.However, the effectiveness of these technologies in the context of informed consent for liver resection remains underexplored.The primary objective of this trial, the EPIC-AR Trial (Enhancing Patient Comprehension in Liver Resection Informed Consent using Augmented Reality and 3D Visualization Technologies), is to assess whether the use of AR and 3D visualization technologies can improve the clarity and effectiveness of informed consent dialogues compared to traditional methods. Materials and methods:This is a prospective randomized, controlled trial with two parallel study groups.The primary objective of this trial is to evaluate the impact of augmented reality (AR) and 3D visualization technologies on patient satisfaction during the informed consent process for liver resection.The following hypothesis will be tested: H0: Both interventions are equivalent.H1: via the usage of AR and 3D visualization technologies during surgical consent, patients get informed more comprehensibly, feel safer und less anxious about their upcoming surgery and feel treated by state-ofthe-art information technology.Patients scheduled for elective LR will be screened for inclusion in the trial.Patients meeting the eligibility criteria will be enrolled into the study.Written informed consent is obtained at least one day before surgery.