For cancer patients, maintaining muscle is vital to health and treatment, but staying strong is complicated
Nearly one-third of cancer patients die from a side-effect you’ve likely never heard of: cancer cachexia.
- Nearly one-third of cancer patients die from a side-effect you’ve likely never heard of: cancer cachexia.
- With cachexia, a patient loses a significant amount of weight due to their disease, with considerable losses of muscle mass.
What exactly is cancer cachexia?
- Cancer cachexia is an unintentional loss of body weight that mainly affects muscle.
- It is diagnosed when a cancer patient loses more than five per cent of their body weight over six months.
- Cancer cachexia is complex, and is likely caused by many factors working together.
- Inflammation from cancer or chemotherapy, reduced appetite and food intake, or even specific interactions between a tumour and muscle could all play a role.
The impact of cachexia on patients
- Cancer cachexia can have a significant impact on a patient’s quality of life and prognosis.
- Patients with cachexia tend to have lower treatment tolerances than those of healthy body composition.
- Cachexia patients report struggling with body image, loss of independence and becoming a burden to their loved ones.
Treating cachexia
Unfortunately, Canada lacks standardized options for treating patients with cancer cachexia. Research suggests that treating cachexia should use a multi-targeted approach. Nutritional interventions are essential for combating cachexia and should be started as soon as possible with consultation from a registered dietitian.
- Exercise could be a very powerful tool to treat cachexia.
- Studies on pharmacological compounds to treat cachexia have produced varied results, and many are still in early phase clinical trials.
Diagnosing and detecting cachexia
- Perhaps the biggest limitation in treating cachexia is detecting it early enough to intervene.
- Diagnosing cachexia is largely based on weight-related measures.
- Integrating strength assessments as well as body composition scans across all points of the cancer journey could help capture the whole picture of cachexia development and progression.
Where to go from here
- The sooner it is detected, the better chance there is to manage it.
- Management should involve a multi-disciplinary team that can help with diet, exercise and psycho-social aspects of the condition.
- It will likely be years before these reach the clinic, so early interventions with nutrition, exercise and regular monitoring are critical.
Meghan McCue receives funding from the Canadian Cancer Society and the Canadian Partnership Against Cancer.