Authors Keywords: cardiovascular pressure-volume loops, ventricular performance, cardiac cycle Abstract

Pressure-volume (PV) loops are a modality used to depict the relationship between pressure and volume in the ventricle.1 They are used to represent ventricular performance during a cardiac cycle. A loop is drawn for a single cardiac cycle that is divided into four primary phases. The four phases are ventricular filling (diastole), isovolumetric contraction (systole), ejection (systole), and isovolumetric relaxation (diastole).

Author Biography P Motshabi-Chakane, University of the Witwatersrand

Department of Anaesthesiology, School of Clinical Medicine, Faculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, South Africa

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