Medical Definition of Immunoglobulin E. Immunoglobulin E: A class of immunoglobulins that includes the antibodies that are important in an allergic response. Abbreviated IgE. A person who has an allergy often has elevated blood levels of IgE. IgE antibodies attack and engage the invading army of allergens.
Liver failure occurs when large parts of the liver become damaged beyond repair and the liver is no longer able to function. Liver failure is a life-threatening condition that demands urgent medical care. Most often, liver failure occurs gradually and over many years.
What Causes Heart Failure? Conditions that damage or overwork the heart muscle can cause heart failure. Over time, the heart weakens. It isnât able to fill with and/or pump blood as well as it should. As the heart weakens, certain proteins and substances might be released into the blood.