. 2016 Mar 15;4(1):47–53. doi: 10.14218/JCTH.2015.00044

Table 1. Diagnostic Criteria of hepatopulmonary syndrome (HPS) (The European Respiratory Society Task Force in 2004)¹.

1-	Presence of liver disease and/or portal hypertension
2-	Elevated room air alveolar-arterial oxygen gradient [P(A-a)O₂ gradient] > 15 mmHg or > 20 mmHg when age ≥ 65 years
3-	Evidence of intrapulmonary vascular dilation (IPVD)

Table 1. Diagnostic Criteria of hepatopulmonary syndrome (HPS) (The European Respiratory Society Task Force in 2004)1.