Guest guest Posted September 13, 2001 Report Share Posted September 13, 2001 HEPATIC ENCEPHALOPATHY - EFFECTIVE TREATMENTS AVAILABLE ONCE ACUTE PRECIPITANTS HAVE BEEN ELIMINATED The diagnosis is appropriate whenever a patient with liver disease has neurological and psychological symptoms that cannot be attributed to other pathologies.Hepatic encephalopathy is a clinical syndrome of unknown pathogenesis. The diagnosis is appropriate whenever a patient with liver disease has neurological and psychological symptoms that cannot be attributed to other pathologies. The disease may arise from a variety of hepatic disorders, exhibit a wide range of severities(ranging from minimal cerebral dysfunction to coma),follows a fluctuating course, and is reversible. The first line of therapy in hepatic encephalopathy should always be elimination of known precipitating factors.Subsequent therapeutic options depend on the severity and duration of disease. Neurotoxins Possibly to Blame Elevated blood ammonia levels may cause hepatic encephalopathy. In patients with cirrhosis of the liver,increased portal vein pressure can lead to the formation of collateral vessels which allow intestinal ammonia to bypass the liver. Liver disease itself also reduces the capacity of the organ to metabolise ammonia. The resultant elevation in blood ammonia levels may increase energy consumption in the brain and lead to swelling of astroglial cells. Hyperammonaemia does not fully explain hepatic encephalopathy, however, because 10%of affected patients have normal blood ammonia levels.[1]Other possible endogenous neurotoxins include mercaptans, phenols, and short- and medium-chain fatty acids.[1] Faulty Blood-brain Barrier Suspected Changes in the blood-brain barrier have been observed in patients with acute or chronic liver disease.This can result in absorption of more neutral amino acids and less glucose, ketone bodies and basic amino acids by the brain.[1] Neurotransmitter Abnormalities Offer Clues Disturbances in amino acid metabolism in patients with liver disease may result in the formation of 'false neurotransmitters' which compete with normal transmitters for receptors in the brain. Other changes in neurotransmitter systems that may contribute to hepatic encephalopathy include elevated É¡-aminobutyric acid(GABA) activity and increased cerebral formation of serotonin.[1] Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 13, 2001 Report Share Posted September 13, 2001 HEPATIC ENCEPHALOPATHY - EFFECTIVE TREATMENTS AVAILABLE ONCE ACUTE PRECIPITANTS HAVE BEEN ELIMINATED The diagnosis is appropriate whenever a patient with liver disease has neurological and psychological symptoms that cannot be attributed to other pathologies.Hepatic encephalopathy is a clinical syndrome of unknown pathogenesis. The diagnosis is appropriate whenever a patient with liver disease has neurological and psychological symptoms that cannot be attributed to other pathologies. The disease may arise from a variety of hepatic disorders, exhibit a wide range of severities(ranging from minimal cerebral dysfunction to coma),follows a fluctuating course, and is reversible. The first line of therapy in hepatic encephalopathy should always be elimination of known precipitating factors.Subsequent therapeutic options depend on the severity and duration of disease. Neurotoxins Possibly to Blame Elevated blood ammonia levels may cause hepatic encephalopathy. In patients with cirrhosis of the liver,increased portal vein pressure can lead to the formation of collateral vessels which allow intestinal ammonia to bypass the liver. Liver disease itself also reduces the capacity of the organ to metabolise ammonia. The resultant elevation in blood ammonia levels may increase energy consumption in the brain and lead to swelling of astroglial cells. Hyperammonaemia does not fully explain hepatic encephalopathy, however, because 10%of affected patients have normal blood ammonia levels.[1]Other possible endogenous neurotoxins include mercaptans, phenols, and short- and medium-chain fatty acids.[1] Faulty Blood-brain Barrier Suspected Changes in the blood-brain barrier have been observed in patients with acute or chronic liver disease.This can result in absorption of more neutral amino acids and less glucose, ketone bodies and basic amino acids by the brain.[1] Neurotransmitter Abnormalities Offer Clues Disturbances in amino acid metabolism in patients with liver disease may result in the formation of 'false neurotransmitters' which compete with normal transmitters for receptors in the brain. Other changes in neurotransmitter systems that may contribute to hepatic encephalopathy include elevated É¡-aminobutyric acid(GABA) activity and increased cerebral formation of serotonin.[1] Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 14, 2008 Report Share Posted April 14, 2008 Hi everyone, I don't think I've posted here more than once before, but I read everything you share. Recently someone posted a link about toxic encephalopathy and when I went there I found another link to hepatic encephalopathy. This is what I believe my daughter is suffering from, as she has had many of the symptoms, including being unable to perform personal cares. My question is, does anyone know if mold exposure can be the cause of hepatic encephalopathy? I haven't ever seen any connection mentioned, but my daughter was exposed to mold at a very young age and remains quite ill. Thanks for anything you might have on this.....and thanks for being here with all the support and great information. Jean **************It's Tax Time! Get tips, forms and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolcmp00300000002850) Quote Link to comment Share on other sites More sharing options...
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