The “Essencial” project of the Quality Agency and Health Evaluations of Catalonia (AQuAS) held a day of reflection on the level of implementation of the recommendations to avoid low-value clinical practices hence those responsible for “Essencial” had the good idea to invite Glyn Elwyn, a researcher specialized in shared decisions at the Dartmouth Institute, to give the inaugural lecture in Barcelona.
According to Elwyn, as seen in the slide: "Shared decisions are a way of acting in which doctors and patients make decisions together, making use of the best available evidence on the probabilities of benefits and adverse effects of each option, relying on patients receiving the necessary support to obtain contrasted information about their preferences." Along this line, a systematic review of the Cochrane Collaboration shows that people who have had the opportunity to make clinical decisions with the support of specific materials (decision aids) admit feeling more prepared, more informed and have the clearest ideas about the value of their clinical processes, and they are probably more aware of the risks of each step they take.

