Pacemaker
111ectopic pacemaker — any biological cardiac pacemaker other than the sinoatrial node; under normal conditions it is not active …
112escape pacemaker — an ectopic pacemaker that assumes control of cardiac impulse propagation because of failure of the sinoatrial node to generate one or more normal impulses …
113fixed-rate pacemaker — an artificial cardiac pacemaker set to pace at only a single rate …
114rate responsive pacemaker — an artificial cardiac pacemaker that can deliver stimuli at a rate adjustable to some parameter independent of atrial activity, such as respiratory rate, physical activity level, blood temperature, or mixed venous oxygen saturation level …
115single chamber pacemaker — an implanted pacemaker having only one lead, which is placed in either the atrium or the ventricle …
116synchronous pacemaker — an implanted pacemaker that synchronizes the electromechanical events in the atrium with those of the ventricle by delivering stimuli in response to sensed activity in the atrium, ventricle, or both …
117transthoracic pacemaker — an external cardiac pacemaker that delivers stimuli through the chest wall, such as one connected to the heart by percutaneous pacing wires introduced through a transthoracic needle or one in which large electrodes are placed on the skin over the …
118transvenous pacemaker — an artificial cardiac pacemaker, either external or implantable, that is connected to the heart by pacing leads passed through the venous circulation …
119unipolar pacemaker — an implanted pacemaker in which the lead has a single stimulating electrode, the cathode, with the anode connected to an indifferent electrode, usually the outer surface of the pulse generator …
120ventricular pacemaker — an ectopic pacemaker occurring in a ventricle …
