I work in a hospital and see this all the time. I am very sorry for your suffering, no one should have to witness this, and yes this is a very typical course of events, it sounds like they tried everything possible, but at this stage it's pretty irreversible. Many never die like this, they die from accidents or falls, brain bleeds, they aspirate vomit, etc, before the alcoholism progresses to this stage. My prayers are with you, nothing can prevent this from happening if the alcoholic continues to drink to the point that the liver can no longer perform its many essential functions. God bless and take care