Table 1

New thresholds of pulmonary hypertension determined at the 4th World Symposium held in Dana Point 2008

Definition of pulmonary hypertension
Invasive
(mean pulmonary artery pressure)
Normal<21 mm Hg
Borderline21–25 mm Hg
Manifest>25 mm Hg
Non-invasive
(systolic tricuspid regurgitant velocity threshold)
Normal<2.5 m/s
Borderline2.5–2.8 m/s
Manifest>2.8 m/s