Electrodes, Pacemaker, Transthoracic
Definition : Electrodes designed to attach to the external surface of the heart to supply electric pacing stimuli via a wire from an external pacemaker connected at the other end. These electrodes are typically needle- or hook-like devices to facilitate their introduction and/or location. Pacemaker transthoracic electrodes are placed during surgical procedures or in emergency conditions (e.g., cardiac arrest) by pushing a pacing wire into the right ventricle through the chest wall and then through the ventricular wall. Transthoracic pacemaker electrodes are used only for temporary pacing of the heart when it is not possible or desirable to use external, transesophageal, or transvenous pacemaker electrodes.
UMDC code : 16127