Table 1.

—European Respiratory Society/European Society of Cardiology Criteria for Determining Probability of PH on TTE Evaluation

Probability	Criteria
PH unlikely if	TR jet velocity ≤ 2.8 m/s, PASP ≤ 36 mm Hg, and otherwise normal TTE
PH possible if	TR jet velocity ≤ 2.8 m/s and PASP ≤ 36 mm Hg, but additional echocardiographic features suggest PH
PH possible if	TR jet velocity of 2.9-3.4 m/s, PASP of 37-50 mm Hg, and no additional features on TTE suggestive of PH
PH likely if	TR jet velocity > 3.4m/s and PASP > 50 mm Hg with or without the presence of additional features suggestive of PH on TTE

Thresholds are based on expert consensus and were arbitrarily decided with the use of best available data at the time of publication.⁴⁶ PASP = pulmonary artery systolic pressure; PH = pulmonary hypertension; TR = tricuspid regurgitant; TTE = transthoracic echocardiography.