[Narratives help disseminate medical technologies: the case of coronary interventions]

Medical technologies are often disseminated and used although evidence demonstrating their effectiveness and safety is missing. Percutaneous intervention (PCI) in stable coronary artery disease (CAD) is an example. This raises the question of how these technologies get disseminated and on which basis they are accepted by clinicians, patients, and the wider public.Studies investigating the communication between clinicians and patients show that simple narratives play a decisive role here. In this paper I discuss how narratives contribute to the dissemination of medical technologies. Communication within the profession, which includes medical education, also relies on narratives to a large degree. They have the following characteristics in common: 1) extreme simplification, 2) reduction to biological processes, 3) deterministic logic, and 4) strong moral message. These narratives are always biased; narratives dealing with interventions paint an overoptimistic picture of their effectiveness and safety. Although they represent "modern" technologies, their logic and purpose are akin to archaic myths.Presumably education and persuasion cannot eschew narratives completely. But health professionals, patients and the public should be aware of the inevitable bias that comes with narratives and their potential for manipulation.