Feasibility and Preliminary Effectiveness of a Shared Decision-making Process

Background: Shared decision-making is a process where health professionals and patients work together through conversation and using tools to make the best possible decision for the person. Patient decision aids provide information based on the best available evidence, support the deliberative process, and further help clarifies individual patient values and preferences. Incorporating shared decision-making in clinical practice is challenging. Hypothesis: A proposed shared decision-making implementation model is feasible and improves patients' knowledge of possible treatment options, as well as patients' perception and degree of satisfaction with the decision-making process. Objective: To evaluate the feasibility and preliminary effectiveness of implementing a shared decision-making model in a tertiary university hospital. Methods: It is proposed to carry out a pilot randomized clinical study (ratio 1:1), with two arms, in parallel, open, single center. Adult patients from two clinical processes will be included: a) Obesity (treatment options: bariatric surgery or medical management (healthy habits +/- pharmacological treatment), and b) Advanced Chronic Kidney Disease (ACKD) (treatment options: hemodialysis, peritoneal dialysis, or conservative treatment). Since it is a pilot study, the investigators estimated a random sample of between 20 to 40 participants per intervention group and control group (total sample 40 to 80 per pathology) would be needed. The intervention group will carry out the shared decision-making model, and the control group will receive the usual clinical practice with detailed information from a health professional. The primary outcomes of interest to be evaluated are a) feasibility; b) quality of the decision and the decision-making process.