Figure 1.
Schematic representation of PAOP. The grey area represents the area without flow. Examples are given of pathologies in which PAOP is not equivalent to left ventricular preload. LA, left auricle; LAP, left atrial pressure; LV, left ventricle; LVEDP, left ventricular end-diastolic pressure; LVEDV, left ventricular end-diastolic volume; PAOP, pulmonary artery occlusion pressure; RA, right auricle; RV, right ventricle.
Robin et al. Critical Care 2006 10(Suppl 3):S3 doi:10.1186/cc4830