ESPVR Contractility — FRCA Primary MCQ
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Correct answer: E — Contractility (load-independent)
The ESPVR (or end-systolic elastance / Ees) is the slope of the line connecting end-systolic pressure-volume points on a series of PV loops at varying preloads. It is a relatively load-independent measure of myocardial contractility. Increased contractility shifts the ESPVR leftward and increases its slope.
Reference: Power Kam 2018 Principles of Physiology for the Anaesthetist