the implantable devices has been largely overlooked. Health-related quality of life (QoL) and, to a lesser extent, psychological disorders, i.e. anxiety and depression, have rarely been assessed as outcomes in clinical trials, and results are pointing towards the impact of the implantable devices on QoL and mental health not being direct but moderated and mediated by several biomedical as well as psychosocial variables. Furthermore, the cognitive effects of the implantable devices have rarely been assessed in empirical studies, although cognitive impairment is largely associated with the heart disorders that require implantation of an electrical device and cognitive benefits are strongly expected from the therapy. The aim of this book is to collect, appraise and condense the results of all empirical studies that have investigated, even marginally, the relationships between the implantable devices and any psychological, emotional, social and cognitive dimension. This book is a cornerstone for all involved in device utilization (physicians, nurses, technicians, industry representatives) that need to understand this topic.¿