Life expectancy for amyloidoisis suffers varies greatly depending on the organs involved, ranging from about one year for sufferers with multiple myeloma to a normal lifespan where only nerves in the arms and legs are affected, according to U.S. Pharmacist. Heart or kidney involvement often results in lower life expectancy.
Amyloidosis is a condition where abnormal protein deposits build up in various parts of the body, explains Stanford Health Care. Primary amyloidosis is the most common form of the disease and affects the entire body, particularly the kidney, heart, certain nerves, intestines, and liver. Heart complications, caused when protein deposits affect its ability to beat properly, comprise the most frequent cause of death from the disease.