Conference on 'Nutrition and age-related muscle loss, sarcopenia and cachexia' Symposium 3: Nutrition for prevention and interventions for sarcopenia and cachexiaThe effectiveness of nutritional interventions in malnutrition and cachexia There are similarities and differences between definitions of both malnutrition and cachexia and studies of oral nutritional interventions have failed to use standard criteria at study inclusion contributing to heterogeneity amongst studies. Meta-analysis of randomised controlled trials has suggested limited evidence of benefit to nutritional and clinical outcomes but some improvements to aspects of quality of life. The presence of cachexia in patients with cancer might explain the limited efficacy of simple oral nutritional interventions, which lack a component designed to address metabolic abnormalities associated with cachexia. Novel strategies combining nutritional support with therapeutic agents designed to down-regulate the metabolic aberrations have failed to demonstrate consistent benefits and the results of multimodal treatments combining several interventions are awaited. There is a need for intervention studies recruiting patients early in the disease course, which underlines the need for definitions which predict poor outcome and hence allow early recognition of vulnerable patients.
Christine Baldwin
Malnutrition: Cachexia: Oral nutritional support: Systematic review: Meta-analysisThe most recent data indicate that worldwide there were about 14 million new cases of cancer diagnosed in 2012 and greater than 330 000 diagnoses being made in the UK in 2011 (1,2) . Cancer remains a leading cause of death worldwide and it is estimated that that 8·2 million people died from cancer in 2012 with about 162 000 deaths from cancer in the UK (1) . Despite the dismal nature of these data, more than half of people diagnosed with cancer will survive for 10 years or more; (1) therefore efforts to maximise the ability of patients to respond to treatment and to achieve a good quality of life are paramount. The morbidity experienced by people with cancer arises from the presence of disease and from the side-effects of treatment. The presence, number and intensity of symptoms are likely to account for a large amount of the suffering experienced by patients. Weight loss is a common symptom in people diagnosed with cancer. A pooled prevalence for any amount of weight loss of 46 (95 % CI 34, 59) % was reported by a systematic review of symptom prevalence in people with incurable cancer (3) . Amounts of weight loss vary according to the site and stage of disease. A retrospective review of 3047 patients with different cancers entering clinical trials, reported a prevalence varying from 31 % to 87 % with the greatest amounts of weight loss found in patients with cancers of the upper gastrointestinal tract (4) . In a group of patients with advanced