Why the study?
How does the site of atrial pacing affect P wave morphology and P-R interval duration in patients undergoing cardiac surgery?
Population
37 patients undergoing cardiac surgery
Comparison
Atrial pacing from selected endocardial and… vs Comparison between different pacing sites
Design
Case_series
Authors
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May warrant site-specific pacing consideration intraoperatively; hypothesis-generating and should not yet change practice.
How does the site of atrial pacing affect P wave morphology and P-R interval duration in patients undergoing cardiac surgery?
Atrial pacing site determines P wave morphology and P-R interval duration, demonstrating that endocardial pacing yields shorter P-R intervals (<0.12 sec) compared to epicardial pacing.
Waldo et al. (1970) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: