Definition: The term "isocheimonal" is a medical term that refers to an abnormality in the heart's electrical activity. It can occur due to conditions such as arrhythmias (irregular heartbeat patterns), atrial fibrillation, and ventricular tachycardia (abnormally fast heartbeats). The symptoms of an "isocheimonal" heart rhythm include chest pain, shortness of breath, nausea, and dizziness. Treatment options for an "isocheimonal