Why the study?
Is preload recruitable stroke work a more reliable and afterload-independent index of contractility than the end-systolic pressure-volume relationship in humans?
Population
60 patients, including 39 with normal ventricular function and 21 with decreased ventricular function.
Comparison
Hemodynamic assessment using conductance… vs Comparison between preload recruitable stroke…
Design
Cross-sectional
Authors
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PRSW may offer a more afterload-independent contractility index than ESPVR; leaves open prospective validation before clinical use.
Is preload recruitable stroke work a more reliable and afterload-independent index of contractility than the end-systolic pressure-volume relationship in humans?
Preload recruitable stroke work (PRSW) appears to be a more linear and afterload-independent index of left ventricular contractility than the end-systolic pressure-volume relationship (ESPVR) in humans.
Takeuchi et al. (1992) studied this question.
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