Anorexia, cachexia and fatigue
The conference was divided into a morning of anorexia/cachexia and an afternoon of fatigue, interspersed by the Bertram Louis Abrahams lecture, delivered by Professor Declan Walsh from Cleveland, Ohio, entitled ‘Mechanisms of fatigue in advanced disease’.
In the morning the prevalence of anorexia and cachexia, and how the latter is in part related to poor nutritional intake, but also, importantly, metabolic abnormalities resulting in the breakdown of skeletal muscle to form acute phase proteins, was discussed. This in turn impacts on symptoms and survival. Management strategies were described in the following three presentations and included appropriate nutritional support, drug treatments and a more practical approach aimed at listening to the patient's needs and responding to them as they arise. No clear ‘gold standard’ drug treatment has yet been identified.
Declan Walsh treated us to a clear and evidence-based description of the mechanisms of fatigue. He introduced the concepts of central and peripheral fatigue, and how different diseases were predominantly of one mechanism or the other. The beneficial effect of exercise in fatigue was highlighted, and can also be explained in terms of its central and peripheral effects.
In the afternoon session the assessment of fatigue was discussed. This includes the impact of fatigue on quality of life by sympton scores of physical and emotional effects, as well as functional assessments such as fatiguability and actigraphy. The Cochrane review of drug treatments showed that methylphenindate may have a useful role for some patients, but as always more research is needed.
In the final session two practical models were described, including a hospice-based multidisciplinary exercise programme and a cancer centre-based psychological support team.
The day demonstrated the major impact that the symptoms of anorexia, cachexia and fatigue have on patients. While historically these have been poorly understood, assessed and managed, it became clear that advances in all aspects are being made, though much remains to be done.
Conference programme
- © 2010 Royal College of Physicians
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