Brief Answer:
serious
Detailed Answer:
your husband is having the complications of
end stage liver disease. the fact that he had varices that required banding, and has elevated ammonia leading to "hepatic encephalopathy" is serious.
He is getting blood work to make sure nothing else is contributing to the
liver damage, however alcohol is enough to cause this. Abstaining from alcohol is paramount, however the liver problems will not reverse. Once the liver is scarred down (enough to cause
esophageal varices and encephalopathy or high ammonia) then there is no liver regeneration.
The only way to "cure" the liver problems are through a
liver transplant. This will depend on his "MELD" score. Ask your doctor what is his score (calculated based on some of his labs). If the MELD score is >15 then he qualifies to be listed for transplant.
He needs to be abstinent from alcohol for a few months, and show proof.
He needs to be checked for
liver cancer as well, and get some sort of liver imaging every 6 months indefinitely (as liver cancer develops more commonly in patients with
cirrhosis).
The MELD score will also determine the prognosis you are asking about.
Hopefully that helps, let me know if you have further questions or concerns.