Electrophysiological Testing of the Heart

What is the test?

Published: December, 2019

If you have an arrhythmia (abnormal heart rhythm), cardiologists can use an electrophysiologic study (EPS) to find out what part of the heart is causing this change in rhythm and what medicines will work best to bring that rhythm back to normal. Sometimes doctors will recommend a treatment called ablation that can be done during EPS testing. Ablation uses radiofrequency waves (like microwaves) to destroy a very small area of heart tissue to stop the arrhythmia from happening.

How do I prepare for the test?

You will need to sign a consent form giving your doctor permission to perform this test. Tell your doctor if you have ever had an allergic reaction to lidocaine or the numbing medicine used at the dentist's office. Also tell your doctor if you have ever had an allergic reaction to any heart medicines.

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