Why the study?
Does atrial synchronous pacing (VDD) during exercise alter left ventricular filling dynamics compared to AV sequential pacing (DVI) at rest in patients with dual chamber pacemakers?
Does atrial synchronous pacing (VDD) during exercise alter left ventricular filling dynamics compared to AV sequential pacing (DVI) at rest in patients with dual chamber pacemakers?
The relative importance of atrial systole on ventricular filling diminishes during exercise, inversely correlating with the kinetic energy of blood flow.
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Suggests exercise modulates atrial contribution to LV filling in paced patients; hypothesis-generating for optimal mode selection.
LINDE‐EDELSTAM et al. (1992) studied this question.
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