How can athletes play with ICDs, and what happens when one goes off?

Athletes like Christian Eriksen demonstrate that playing soccer with an implantable cardioverter-defibrillator (ICD) is feasible, provided they are monitored closely. Eriksen, who collapsed during Denmark's 2-1 friendly victory over Ukraine, now plays with an ICD that protects him from life-threatening arrhythmias. This device allows him to participate in high-intensity sports while ensuring his heart rhythm is regulated. The presence of an ICD does not diminish his competitive spirit; instead, it underscores the advancements in sports medicine that enable athletes to return to the field safely.

The 2026 FIFA World Cup will showcase how athletes manage health risks while competing at the highest level. As the tournament approaches, teams will need to ensure that players with ICDs, like Eriksen, are fit and ready to perform. The expanded format of the World Cup, featuring 48 teams and 104 matches, emphasizes the necessity for rigorous health protocols. Player fitness is paramount, as teams navigate a demanding schedule, making it crucial for athletes with medical devices to be in optimal shape to handle the physical demands of the tournament.

Despite the safety measures provided by ICDs, there are inherent risks when such devices activate during matches. If an ICD delivers a shock, the athlete may experience disorientation or a sudden loss of function, which could pose a danger not only to themselves but also to other players on the field. This concern raises questions about the appropriateness of allowing athletes with ICDs to compete in high-stakes environments. Medical professionals must weigh the risks against the benefits, ensuring that athletes are fully prepared for the potential consequences of their devices activating during play.

The presence of ICDs in professional soccer highlights a broader conversation about athlete safety and medical advancements in sports. As more players like Eriksen return to competitive play with these devices, it may pave the way for revised regulations and guidelines from governing bodies. Teams and medical staff must collaborate closely to monitor athletes' health, ensuring that they can perform safely while managing their conditions. This evolving landscape could lead to increased awareness and support for athletes with similar health challenges, ultimately fostering a more inclusive environment in sports.