Hepatopulmonary Syndrome Criteria & Severity
Hepatopulmonary syndrome criteria and severity grade, from the ERS task force definition.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Liver disease or portal hypertension
- Yes
- Intrapulmonary vascular dilatation shown
- Yes
- Age
- 70
- Room-air arterial oxygen, PaO2
- 85
- Room-air alveolar-arterial oxygen gradient
- 18
Result: At 70 years the threshold is 20 mmHg, so a gradient of 18 does not meet the criteria.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Liver disease or portal hypertension
- Intrapulmonary vascular dilatation shown
- Age (years)
- Room-air arterial oxygen, PaO2 (mmHg)
- Room-air alveolar-arterial oxygen gradient (mmHg)
How this is calculated
Rodriguez-Roisin R, Krowka MJ, Herve P, Fallon MB; ERS Task Force Pulmonary-Hepatic Vascular Disorders Scientific Committee. Pulmonary-Hepatic vascular Disorders (PHD). Eur Respir J. 2004;24(5):861-880. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.