Why the study?
Does post-extrasystolic potentiation accurately assess regional myocardial viability in patients with coronary artery disease?
Population
46 patients with coronary artery disease
Design
Cross-sectional
Authors
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May reflect passive tethering rather than viability; leaves open post-extrasystolic potentiation utility for regional viability assessment in CAD.
Does post-extrasystolic potentiation accurately assess regional myocardial viability in patients with coronary artery disease?
Improved regional wall motion following post-extrasystolic potentiation in akinetic or dyskinetic regions may be due to passive tethering rather than active viability, limiting its diagnostic utility.
Slack et al. (1980) studied this question.
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