Smartwatch-enabled early detection and treatment of cardiomyopathy induced by premature atrial contractions: a case report

This case highlights the potential for frequent PACs to induce AiCM. Although PACs are typically considered benign, in this case, the high PAC burden led to significant left ventricular dysfunction. The successful resolution of the patient's symptoms and the improvement in heart function after radiofrequency ablation demonstrate the reversibility of AiCM caused by PACs if treated early. Importantly, this case underscores the emerging role of wearable technologies, like smartwatches, in the early detection of arrhythmias, enabling timely intervention to prevent the progression of heart failure.