What does electrophysiology study investigate?

Electrophysiology study focuses specifically on the electrical activities of the heart, which includes the investigation of the heart's electrical signals and the related arrhythmias. This branch of cardiology examines how the electrical impulses initiate and coordinate the heartbeat, as well as how abnormalities in these impulses can lead to various types of arrhythmias.

Understanding the electrical function of the heart is crucial for diagnosing and treating conditions such as atrial fibrillation, ventricular tachycardia, and other irregular heart rhythms. By using techniques such as electrophysiological mapping and ablation, specialists can pinpoint areas in the heart that may be responsible for arrhythmias and directly address these issues, either through medication or intervention.

In contrast, other areas mentioned in the question focus on different aspects of cardiac function. The mechanical function of the heart relates to how the heart muscles contract and pump blood, which is separate from the electrical activities. The structural integrity of heart valves pertains to physical abnormalities or diseases affecting the valves, while blood flow dynamics refers to the movement of blood within the heart and the circulation system. Each of these areas has its own distinct focus, while electrophysiology is specifically concerned with the heart's electrical system and rhythm.