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Haemodynamic left‐ventricular changes during dobutamine stress in patients with atrial septal defect assessed with magnetic resonance imaging‐based pressure–volume loops

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Atrial septal defect (ASD) results in a left‐to‐right shunt causing right‐ventricular (RV) volume overload and decreased cardiac output from the left ventricle. Pressure–volume (PV) loops enable comprehensive assessment of ventricular… Click to show full abstract

Atrial septal defect (ASD) results in a left‐to‐right shunt causing right‐ventricular (RV) volume overload and decreased cardiac output from the left ventricle. Pressure–volume (PV) loops enable comprehensive assessment of ventricular function and might increase understanding of the pathophysiology of ASD. The aim of this study was to investigate if left‐ventricular (LV) haemodynamic response to stress in patients with ASD differs from controls.

Keywords: volume loops; atrial septal; volume; pressure volume; septal defect; left ventricular

Journal Title: Clinical Physiology and Functional Imaging
Year Published: 2022

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