Pulmonary
arterial wedge pressure (PAWP) provides accurate but imprecise estimates of
left ventricular end-diastolic pressure (LVEDP) during exercise. A combination
of PAWP ≥25 mmHg at peak and/or PAWP/cardiac output slope >2 mmHg·L−1·min−1 correctly identifies
heart failure with preserved ejection fraction patients among those individuals
with either PAWP or LVEDP ≥25 mmHg at peak.
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