Cardiac electrophysiological studies (EPS) are used to pinpoint abnormal pathways in the heart’s electrical conducting system. A catheter that has electrodes at its tip is introduced into the heart and manipulated to record the electrical activity at different sites. Once an abnormal pathway is located, it can be destroyed by sending a current through the electrodes in a procedure known as radiofrequency ablation. Radiofrequency ablation can provide a permanent cure for some disorders and has a high success rate.
From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.
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