Hemodynamic definitions of pre- and post-capillary pulmonary hypertension
Hemodynamic definitions of pre- and post-capillary pulmonary hypertension
Definition
Haemodynamic characteristics
PH
mPAP >20 mmHg
Pre-capillary PH
mPAP >20 mmHg
PAWP ≤15 mmHg
PVR >2 WU
IpcPH
mPAP >20 mmHg
PAWP >15 mmHg
PVR ≤2 WU
CpcPH
mPAP >20 mmHg
PAWP >15 mmHg
PVR >2 WU
Exercise PH
mPAP/CO slope between rest and exercise
>3 mmHg/L/min
Some patients present with elevated mPAP (>20 mmHg) but low PVR (≤2 WU) and low PAWP (≤15 mmHg); this haemodynamic condition may be described by the term 'unclassified PH'.