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FIELD STIMULATION ABOUT A DISCONTINUITY OF THE MYOCARDIUM TO CAPTURE THE HEART AT REDUCED PACING THRESHOLDS
FIELD STIMULATION ABOUT A DISCONTINUITY OF THE MYOCARDIUM TO CAPTURE THE HEART AT REDUCED PACING THRESHOLDS
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机译:减少心跳阈值时心肌不连续性以捕获心脏的场刺激
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摘要
Improved pacing thresholds for capturing the heart are achieved by forming a discontinuity in the cardiac tissue of the heart chamber, disposing a pacing electrode at a distance exceeding a space constant of the cardiac tissue from the discontinuity in the cardiac tissue, and applying a stimulus of a first polarity at an energy insufficient to cause the directly stimulated tissue adjacent to the pacing electrode to propagate a depolarization wave through the cardiac tissue mass of the heart chamber but sufficient to induce a transmembrane potential change at the tissue adjacent to the discontinuity that results in a propagated wave front. Thus, pacing energy is advantageously reduced.
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