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Hyperammonemia, or high ammonia levels, is a metabolic disturbance characterised by an excess of ammonia in the blood. Severe hyperammonemia is a dangerous condition that may lead to brain injury and death. It may be primary or secondary. Ammonia is a substance that contains nitrogen. It is a product of the catabolism of protein.
Hepatic encephalopathy can occur in those with acute or chronic liver disease. [4] Episodes can be triggered by infections, gastrointestinal bleeding, constipation, electrolyte problems, or certain medications. [5] The underlying mechanism is believed to involve the buildup of ammonia in the blood, a substance that is normally removed by the ...
Can affect many body systems, particularly the brain and nervous system. Acute necrotizing encephalopathy, rare disease that occurs following a viral infection. Glycine encephalopathy: A genetic metabolic disorder involving excess production of glycine. Hepatic encephalopathy: Arising from advanced cirrhosis of the liver.
Patients presenting as acute and hyperacute liver failure are at greater risk of developing cerebral edema and grade IV encephalopathy. The pathogenesis remains unclear, but is likely to be a consequence of several phenomena. There is a buildup of toxic substances like ammonia, mercaptan, serotonin and tryptophan in the brain.
Citrullinemia is an autosomal recessive urea cycle disorder that causes ammonia and other toxic substances to accumulate in the blood. [1]Two forms of citrullinemia have been described, both having different signs and symptoms, and are caused by mutations in different genes.
Chronic liver failure usually occurs in the context of cirrhosis, itself potentially the result of many possible causes, such as excessive alcohol intake, hepatitis B or C, autoimmune, hereditary and metabolic causes (such as iron or copper overload, steatohepatitis or non-alcoholic fatty liver disease). [citation needed]
Cirrhosis, also known as liver cirrhosis or hepatic cirrhosis, chronic liver failure or chronic hepatic failure and end-stage liver disease, is a condition of the liver in which the normal functioning tissue, or parenchyma, is replaced with scar tissue and regenerative nodules as a result of chronic liver disease.
Dimethyl sulfide. Fetor hepaticus or foetor hepaticus (Latin, "liver stench" ("fetid liver") [1] (see spelling differences), also known as breath of the dead or hepatic foetor, is a condition seen in portal hypertension where portosystemic shunting allows thiols to pass directly into the lungs.