Electrophysiology (EP) is a specialized field of cardiology focusing on diagnosing and treating heart rhythm disturbances. During an EP study, electrodes are guided through blood vessels to your heart and used to test the function of your heart's electrical system. This can identify whether you have or may develop heart rhythm problems.

An EP procedure called an ablation can correct heart rhythm problems, or arrhythmias. Ablation typically uses long, flexible tubes, or catheters, inserted through a vein in your groin and threaded to your heart to correct structural problems in your heart that cause an arrhythmia.

Mayo Clinic Health System provides a full range of services for patients who also may need implanted pacemakers, defibrillators or biventricular devices.

Services include:

• Diagnosis and treatment of heart rhythm disorders.
• Device implantation.
• Device management using virtual or telephone visits

Mayo Clinic Health System's cardiologists and surgeons have been implanting heart rhythm devices for about 40 years. Over that time, more than 3,000 devices have been implanted.

The goal for any heart rhythm device is to help patients improve their quality of life. Follow-up appointments are made easier with virtual or telephone-based technology that allows your device to be monitored by your health care provider.