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Changes in ventriculo–arterial coupling using two definitions of left ventricular contractility. (A). Arterial elastance/end‐systolic elastance (single‐beat method) [Ea/Ees (sb)]. (B). Arterial elastance/end‐systolic pressure/end‐systolic volume ratio (Ea/[Pes/Ves]). ESV, end‐systolic volume; SBM, single‐beat method.
