The pacemaker is the treatment of choice for symptomatic bradycardic arrhythmias. However, pacemaker patients may develop further bradycardial arrhythmias, often due to a pacemaker dysfunction. The possible causes range from lead problems to complete system failure. The NanostimTM system is a leadless pacemaker. The advantages include the lead-free design and the catheter-based implantation. In 2016, all NanostimTM implantations were stopped due to a battery dysfunction.
Keywords: Atrial fibrillation; Battery dysfunction; Bradycardia; Leadless pacemaker; Pacemaker dysfunction.