…permanent pacemakers, implantable cardioverter defibrillators (ICDs), and cardiac resynchronization therapy (CRT) devices. Implantable loop recorders are diagnostic devices rather than pacing or defibrillation systems, but…

…metabolic disorders, hypoxemia, antiarrhythmic drugs, or electromagnetic disturbance caused by other machines/devices. Below follows ECG tracings demonstrating each type of failure. Figure 1. Failure…