Cardiac cachexia is unintentional severe weight loss caused by heart
disease. The weight loss might be life-threatening.
It can happen to people who have severe heart failure. Even with a very good appetite and high calorie intake, some people
lose muscle mass.
Cardiac cachexia can require supplemental nutrition.
How does heart failure cause it?
Heart failure may cause blood to back up into the
liver and intestines, and they may swell. This swelling can lead to nausea and
Swelling of the intestines may not allow for
adequate absorption of nutrients from the food you eat.
failure may force you to work harder to breathe and cause your body temperature
to increase. Both of these conditions burn calories.
In people with
severe heart failure, tumor necrosis factor (TNF) and other signaling molecules
in the bloodstream called cytokines can increase the metabolic rate of the
tissues, thus burning more calories.