Key result
Cardiac pacing at an intermediate rate was most efficient in subjects with complete heart block, maximizing cardiac output and work while maintaining intermediate oxygen consumption.
Why the study?
Does cardiac pacing at different rates alter cardiac output and coronary blood flow in subjects with complete heart block?
Population
12 subjects with complete heart block, average age 65.9 years
Comparison
Cardiac pacing at three different rates vs Within-subject comparison across the three…
Design
Other
Authors
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Intermediate pacing may optimize efficiency in complete heart block; hypothesis-generating and should not yet change device programming.
Does cardiac pacing at different rates alter cardiac output and coronary blood flow in subjects with complete heart block?
In patients with complete heart block, an intermediate pacing rate optimizes cardiac output and systemic oxygenation while balancing myocardial oxygen demand.
Rowe et al. (1969) studied Complete heart block (n=12). Cardiac pacing vs. Different pacing rates compared to each other was evaluated on Cardiac output and coronary blood flow. Cardiac pacing at an intermediate rate was most efficient in subjects with complete heart block, maximizing cardiac output and work while maintaining intermediate oxygen consumption.
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