Chronic liver disease, especially cirrhosis, is related with ascites. The serum ascites albumin gradient (SAAG), which is based on the difference between the albumin level of serum and of ascitic fluid, may be used to assess the extent of ascites.
Besides, what is SAAG in ascitic fluid?
Serum-ascites albumin gradient (SAAG) is more useful than the total protein concentration of ascitic fluid in the classification of ascites. This gradient is physiologically based on oncotic-hydrostatic balance and is related directly to portal pressure.
This is due to increased hydrostatic pressure within the blood vessels of the hepatic portal system, which in turn forces water into the peritoneal cavity but leaves proteins such as albumin within the vasculature.>>>
Similarly one may ask, what is the significance of serum ascites albumin gradient?
Defines presence of portal hypertension in patients with ascites. Patients with known liver disease and ascites in whom portal hypertension status is unknown. The serum ascites albumin gradient (SAAG) can determine which patients with liver disease have portal hypertension.
What does SAAG stand for?
What causes portal hypertension?
Portal hypertension is a term used to describe elevated pressures in the portal venous system (a major vein that leads to the liver). Portal hypertension may be caused by intrinsic liver disease, obstruction, or structural changes that result in increased portal venous flow or increased hepatic resistance.
How do you interpret a SAAG ratio?
A high SAAG (>1.1g/dL) suggests the ascitic fluid is a transudate
- Malignancy.
- Infection.
- Pancreatitis.
- Nephrotic syndrome.
What is low SAAG ascites?
Low SAAG ascites (<1.1 g/dL) is usually caused by peritoneal malignancies, chronic peritoneal infection (i.e., mycobacterium tuberculosis), and nephrotic syndrome. Cancers that spread to the omentum and result in ascites are typically of ovarian, gastric, or pancreatic origin.