Test and Treatment: Cardiac Electrophysiological Studies

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.

During EPS

A catheter is inserted into a vein in the groin under local anaesthesia and threaded into the heart. Electrodes at the tip of the catheter detect electrical activity and can be used to deliver a current to destroy abnormal pathways.

From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.

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