cardiac cachexia

In advanced heart failure, the body can begin to consume itself. Despite a swollen, fluid-heavy appearance, the person is quietly wasting away beneath it — losing muscle and fat in a way that ordinary eating cannot reverse. This severe wasting is called cardiac cachexia.

It reflects more than poor appetite. Chronic heart failure drives a state of inflammation and hormonal imbalance — elevated stress hormones, inflammatory signals, and a shift toward breaking down tissue rather than building it. Poor blood flow and congestion of the gut impair nutrient absorption, breathlessness makes eating an effort, and the result is loss of skeletal muscle, fat, and even bone. Defined roughly as non-deliberate loss of more than five percent of body weight over time, cachexia is masked by fluid retention and is easy to overlook until it is advanced.

Cardiac cachexia is an ominous sign, marking advanced disease and a worse prognosis. There is no single effective cure; management combines optimal heart failure therapy to reduce the underlying drive, attention to nutrition and protein intake, and resistance exercise where possible. It is one of the features that may prompt consideration of advanced therapies or palliative care planning.