An electrophysiologic study is used to map the heart's conduction system in a patient with an arrhythmia.

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An electrophysiologic study (EPS) is an invasive procedure used to evaluate the electrical activity of the heart and to diagnose and treat arrhythmias. During an EPS, special catheters are inserted into the heart to map the heart's conduction system and to determine the location and type of any abnormal electrical activity that may be causing the arrhythmia. Based on the findings of the EPS, the cardiologist can then develop a treatment plan tailored to the individual patient's needs.

An Electrophysiologic Study Is Used to Map the Heart's Conduction