Fulminant hepatitis is a life-threatening condition wherein an individual will fall into a coma for no known reason. Possible complications include severe breathing problems, unstable heart rate, G.I. (gastrointestinal) bleeding and kidney failure. Swelling of the brain may occur in young children and adolescents.This condition affects less than one percent of patients and there is no specific treatment available. Sometimes an emergency liver transplantation may be necessary, but even with that, the survival rate is only about 50 percent.