PAPi is ratio of pulmonary artery pulse pressure to right atrial pressure
- related: cardiac hemodynamics and pressures
- tags: #permanent
PAPi is ratio of pulmonary artery pulse pressure (pulmonary artery systolic - pulmonary artery diastolic) to right atrial pressure.1
Right atrial pressure is measure of congestion. PA pulse pressure is measurement of RV stroke volume and afterload.
Low PAPi is predictor of mortality in right sided heart failure.