Ppa | PVR | Q' | mPAOP | |
Hyperdynamic circulatory state | Moderate increase | Mild decrease | Severe increase | Mild decrease |
Excess volume# | Moderate increase | No change | Moderate increase | Severe increase |
Vascular obstruction with vasoproliferation¶ | Severe increase | Severe increase | Severe increase followed by severe decrease | Mild decrease |
All groups can be associated with increased pulmonary arterial pressures
Only the last group (i.e. vascular obstruction) is associated with vascular remodelling and characterises the entity of portopulmonary hypertension (PPHTN)
Ppa: mean pulmonary arterial pressure
PVR: pulmonary vascular resistance
Q': cardiac output
mPAOP: mean pulmonary artery occlusion pressure
#: e.g. hepatopulmonary syndrome
¶: e.g. PPHTN