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. 2011 Dec;20(122):222–235. doi: 10.1183/09059180.00006911

Table 1. Definition of pulmonary hypertension (PH).

Echocardiographic diagnosis: PH unlikely
    TJV ≤2.8 m·s−1, Ppa,syst ≤36 mmHg, and no additional echocardiographic variables suggestive of PH
Echocardiographic diagnosis: PH possible
    TJV ≤2.8 m·s−1, Ppa,syst ≤36 mmHg, but presence of additional echocardiographic variables suggestive of PH
    TJV 2.9–3.4 m·s−1, Ppa,syst 37–50 mmHg with/without additional echocardiographic variables suggestive of PH
Echocardiographic diagnosis: PH likely
    TJV >3.4 m·s−1, Ppa,syst >50 mmHg, with/without additional echocardiographic variables suggestive of PH

TJV: tricuspid jet velocity; Ppa,syst: pulmonary artery systolic pressure. Reproduced from [4], with permission from the publisher.