["Extreme sports" in patients with heart disease: an informative approach to patient counseling].

The term "extreme sports" includes a range of sporting activities, predominantly individual, practised outdoors in a wild and non-competitive environment, which have in common the critical role of environmental variables, the importance of qualitative parameters in evaluating performance, the centrality of technological elements and the high perceived risk which, together with the spectacularity, attracts the attention of the media, favoring its popularity. Despite their diversity, these disciplines share specific risks and physiological and pathophysiological aspects. The average age of participants is generally higher than that of traditional and competitive sports, and the prevalence of male subjects implies a higher likelihood of cardiological evaluation whose path has yet to be codified like that of traditional sports. The risk of severe injuries in these sports is not higher than that of traditional sports and non-sporting activities. In contrast, the risk of cardiovascular events is documented only for some sports practised in the mountains, such as mountaineering, skiing and mountain biking, and it does not appear to be higher than that of equivalent physical activities performed at low altitudes. The diagnostic and prognostic criteria for cardiological counseling of enthusiasts are not defined. Environmental exposure to extremes of temperature, altitude, wind and humidity, and dehydration are typical characteristics of these activities, which should be addressed with adequate experience, preparation and equipment to minimize the potential impact on health. Finally, many of these activities are often conducted in "remote areas" compared to the possibility of emergency response, which should be considered in the risk assessment of an acute cardiovascular event. The definition of cardiovascular risk constitutes an open area of research to allow the practice of these sports to an increasing number of participants.