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Cardiac electrodes designed to detect and transmit bioelectric signals from the heart usually to an electrocardiograph or cardiac monitor. Electrocardiography (ECG) electrodes are available in a variety of configurations that may be intended for transcutaneous (also known as skin or superficial electrodes) use or for transesophageal or transvenous insertion. Most ECG electrodes are detachable from leads and/or cable leads. Implantable and catheter mounted ECG electrodes (usually an integral part of implantable leads and catheters, respectively) are also available. ECG cardiac electrodes are intended for measuring, recording, and/or monitoring the cardiac rhythm that is typically displayed in a graphic known as an electrocardiogram; they are used in diagnostic, therapeutic, and surgical procedures.
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