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4 Cards in this Set
- Front
- Back
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What is the diagnostic criteria for hepatorenal syndrome?
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- Oxygenation defect - Partial pressure of oxygen <80mmHg or alveolar-arterial oxygen gradient >15mmHg
- Pulmonary vascular dilatation (enhanced echocardiography i.e microbubble opacification of the left heart chambers three to six cycles after right atrial passage) Liver disease - portal hypertension with or without cirrhosis See OneNote |
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Other than hepatopulmonary syndrome, what will cause a contrast enhanced echocardiography (i.e microbubble opacification) to be positive?
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arteriovenous malformation - pulmonary angiography
intracardiac shunt - TOE |
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What is the unique pathological feature of hepatopulmonary syndrome?
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Gross dilatation of the pulmonary precapillary and capillary vessels (to 15-100 microm in diameter when the patient is at rest)
The defect in oxygenation is due to a ventilation-perfusion mismatch characterised by increased blood flow while alveolar ventilation is uniformly preserved Normal range of the capillary diameter, <8 to 15 microm Microbubbles >10microm in diameter |
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What is the treatment for hepatopulmonary syndrome?
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Liver transplant is the only successful treatment
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