Prolongation of battery life in cardiac pacers is the most important goal in pacing today. It has been known for many years that the output of conventional cardiac pacers is unnecessarily high. A study of stimulating thresholds has been made in 91 patients at the time of initial implant and 60 of these patients at the time of first pulse generator replacement, and 16 of the same patients at the time of the second replacement. Electrodes of two different sizes were used. The results showed that the thresholds were lower with the smaller electrode and with both electrodes were remarkably stable and lower than is commonly thought. The study indicates that the combination of a small electrode and reduced pulse generator power and output is a logical way to minimize current drain on the battery and prolong the life of the pacemaker pulse generator.
|Title of host publication||MED.ANN.D.C.|
|Number of pages||5|
|State||Published - Dec 1 1974|
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