Why the study?
Does simultaneous pacing at two sites in the right ventricle improve cardiac output and narrow QRS duration in patients undergoing elective electrophysiology studies?
Population
11 patients undergoing elective electrophysiology studies
Comparison
DOO pacing simultaneously at two sites in the… vs Normal sinus rhythm, AOO pacing, DOO pacing in…
Design
Other, Pacing modes were performed in random order
Authors
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Findings hypothesis-generating for dual-site RV pacing; should not change clinical practice without further validation.
Does simultaneous pacing at two sites in the right ventricle improve cardiac output and narrow QRS duration in patients undergoing elective electrophysiology studies?
Simultaneous pacing at the right ventricular apex and outflow tract acutely narrows QRS duration compared to single-site right ventricular pacing, with a trend toward improved cardiac output.
Buckingham et al. (1997) studied this question.
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