Improved efficiency of treadmill exercise testing using a multiple lead ECG system and basic hemodynamic exercise response.
Why the study?
Does a 14-lead ECG system improve the sensitivity of treadmill exercise testing for detecting significant coronary stenosis compared to an isolated V5 lead in men with normal resting ECGs?
Population
100 consecutive men with a normal ECG at rest undergoing maximal treadmill testing and coronary arteriography.
Comparison
14-lead ECG system during and post-exercise… vs Isolated V5 lead, 11 leads, or a combined CM5…
Design
Cross-sectional
Follow-up
1 day (arteriography performed the following day)
Authors
Discussion
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Implication
14-lead ECG may increase CAD detection on exercise testing; hypothesis-generating and should not yet change practice.
Structured PICO
Does a 14-lead ECG system improve the sensitivity of treadmill exercise testing for detecting significant coronary stenosis compared to an isolated V5 lead in men with normal resting ECGs?
P
Population
100 consecutive men with a normal ECG at rest undergoing maximal treadmill testing and coronary arteriography.
I
Intervention
14-lead ECG system during and post-exercise treadmill testing.
C
Comparator
Isolated V5 lead, 11 leads, or a combined CM5, CC5, Cl (inferior) lead system.
O
Outcome
Positive exercise test for the detection of coronary stenoses ≥70% as confirmed by coronary arteriography.surrogate
The use of a 14-lead ECG system during treadmill exercise testing significantly improves the sensitivity for detecting significant coronary artery disease compared to a single V5 lead without compromising predictive value.
Cite This Study
Chaitman et al. (1978) studied this question.