Miya Pearson
Cancer patients often experience excessive daytime sleepiness (EDS), which is a common feature of central disorders of hypersomnolence. This can be caused by various factors, including the cancer itself, cancer treatments, and the side effects of treatment. Cancer-related fatigue is a significant issue for many patients, with over 75% of those undergoing chemotherapy or radiation therapy reporting feelings of tiredness and weakness. This fatigue can interfere with daily life and reduce quality of life, and it often does not improve with rest or sleep. Sleep disruption is also a frequent complaint among cancer patients, and it is unclear whether this is related to the quality or quantity of sleep or the sleep/wake cycle. Cancer patients may experience hypersomnia, which is characterised by excessive daytime sleepiness and difficulty staying awake during the day despite adequate nighttime sleep. The treatment for cancer-related hypersomnia depends on the underlying cause, which could be the cancer treatment itself, depression, or stress.
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What You'll Learn
Cancer-related fatigue
Fatigue is one of the most frequent complaints of cancer patients, with 75-100% of patients undergoing chemotherapy or radiation therapy reporting feeling tired and weak. It can interfere with daily life and is often one of the key reasons for patients discontinuing treatment. Cancer fatigue may be related to both the disease process and treatments. When an individual has cancer, their body's immune system is working hard to fight the disease, drawing constantly on their energy stores. Cancer can also cause the body to release cytokines, substances that help fight infections and cancer but can cause fatigue when released at high levels.
The exact cause of cancer-related fatigue is unknown, and it is unclear whether it is related to sleep/wake cycles or the quality and quantity of sleep obtained. However, sleep disruption is a very common complaint in patients with cancer, and cancer treatments can cause sleep problems. Sleep quality and quantity should be assessed when evaluating cancer-related fatigue.
Treatments for cancer-related fatigue are limited, and there is no single medication available to treat it. However, medications can be prescribed to treat underlying causes such as depression or stress. Other recommendations include daily exercise, maintaining a regular sleep schedule, engaging in enjoyable activities that require full attention, and avoiding heavy meals, sleep-inducing foods, alcohol, and caffeine.
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Sleep disorders
Fatigue is a significant issue for cancer patients, with many experiencing whole-body exhaustion that is not alleviated by rest or sleep. Cancer-related fatigue may be a symptom of cancer, but it is often a side effect of cancer treatments such as chemotherapy and radiation therapy. It can also be caused by depression, stress, pain, infection, or the body's immune response to the disease. The exact cause of cancer fatigue is unknown, but it is believed to be related to both the disease process and treatments. Cancer-related fatigue affects 80%-100% of people with cancer and can last for months or years, negatively impacting their quality of life.
The assessment of sleep and fatigue in cancer patients is challenging due to the subjective nature of these conditions. However, multiple sleep latency testing (MSLT) and polysomnography are used to objectively evaluate sleep and fatigue levels. Sleep disorders and fatigue in cancer patients can have serious consequences, including a negative impact on quality of life, poor psychosocial outcomes, reduced compliance with treatment, and premature withdrawal from treatment.
The treatment for cancer-related sleep disorders and fatigue depends on the underlying cause. If the sleep problem is due to cancer treatment, medication may be prescribed to help patients stay awake. If the issue is related to depression or stress, providers may prescribe medication or refer patients to counselling or therapy. Exercise, a regular sleep schedule, engaging in enjoyable activities, and avoiding heavy meals or sleep-inducing foods during the day can also help manage sleep disorders and fatigue.
In summary, sleep disorders and fatigue are common issues for cancer patients, impacting their quality of life and treatment compliance. Effective management of these conditions is essential to improve patient well-being and clinical outcomes.
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Sleep disruption
EDS is a common feature of central disorders of hypersomnolence, and studies have shown that cancer patients often experience symptoms of hypersomnia, such as sleep paralysis, sleep attacks, and cataplexy. Sleep referral and polysomnography can help to diagnose these disorders and exclude other sleep disorders. Medication can also be prescribed to help patients stay awake during the day.
Fatigue is a whole-body exhaustion that does not improve with rest or sleep. It is a common side effect of cancer treatment, with up to 90% of patients treated with radiation therapy and 80% treated with chemotherapy reporting fatigue. It can also be caused by depression, stress, pain, and infection. Cancer-related fatigue can affect a patient's quality of life, interfering with daily tasks and enjoyment of life.
The assessment of sleep and fatigue in cancer patients is challenging due to the subjective nature of these experiences. However, multiple sleep latency testing (MSLT) and polysomnography can be used to objectively evaluate sleep and fatigue. Healthcare providers may also use charts or diaries to help patients record their energy levels and fatigue over time.
Treating sleep disruption and fatigue in cancer patients can be difficult, and current treatments have limited success. However, medications can be prescribed to treat underlying causes of fatigue, such as depression or pain. Non-pharmacological therapies, such as daily exercise, maintaining a regular sleep schedule, and engaging in enjoyable activities, can also help improve sleep and reduce fatigue.
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Hypersomnia
Sleep disruption and fatigue are very common complaints in patients with cancer. Fatigue is a whole-body exhaustion that doesn't improve with rest or sleep, and it may be a symptom of cancer, or a side effect of cancer treatments like chemotherapy and radiation therapy. It may also be a symptom of depression or stress from living with cancer.
Excessive daytime sleepiness (EDS) is also commonly reported in patients with cancer, and it is a cardinal feature of central disorders of hypersomnolence. Hypersomnia is a condition where a person feels very sleepy during the day or wants to sleep for longer than normal at night. Signs of hypersomnia include sleeping for 10 or more hours at a time. It is different from fatigue, which is the feeling of being tired, but able to stay awake if you try. If you have hypersomnia, you will have trouble staying awake when you want to, and you may sleep 10 hours at night but still have trouble staying awake during the day. Hypersomnia can be caused by cancer treatments or other medicines, including chemotherapy, antinausea medicine, sedatives, antihistamines, pain medicines, and antidepressants.
If you are experiencing hypersomnia, it is important to keep up with any treatment you are already getting, and to let your cancer care team know. They may recommend daily exercise, keeping a regular sleep schedule, and avoiding heavy meals, certain foods, alcohol, and caffeine.
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Treatment for sleep problems
Sleep problems are common in cancer patients, with studies showing that as many as half of all people with cancer experience sleep-related issues during treatment. These problems can be caused by various factors, including pain, discomfort, and treatment side effects. It is important to address sleep problems as they can affect a person's physical and mental health, increasing the risk of anxiety or depression.
If you are experiencing sleep problems, it is important to talk to your healthcare team, including your doctor or a sleep specialist, who can help determine the best treatment for you. Here are some possible treatments for sleep problems in cancer patients:
- Cognitive Behavioral Therapy (CBT): This therapy aims to change negative thoughts and beliefs about sleep into positive ones. It has been found to enhance sleep, improve mood, and strengthen the immune system.
- Relaxation Therapy: Relaxation techniques, such as meditation, can help cancer patients relax and improve their sleep. Penny Brohn, a cancer charity, offers advice, support, and relaxation techniques to cancer patients.
- Sleep Hygiene: Improving sleep hygiene includes making changes to your bedroom setting and daily sleep habits. This may involve following a consistent sleep schedule, ensuring your bed and bedroom are comfortable and inviting, and minimizing the use of electronic devices before bedtime.
- Treating Underlying Issues: Treating pain, digestive issues, and urinary problems that may be causing sleep disruptions can help improve sleep.
- Medication: If other strategies don't work, your doctor may prescribe sleep medication for a short period. The type of medication will depend on your specific sleep issues and other medicines you are taking.
- Chronotherapy: This is a developing field of cancer research that uses circadian rhythm or sleep-wake cycles in conjunction with treatments like radiation therapy, chemotherapy, or immunotherapy.
- Support Groups: Connecting with others who have had similar experiences can provide support and help in managing sleep problems. Organizations like Cancer Research UK offer free support forums for cancer patients.
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Frequently asked questions
Excessive daytime sleepiness (EDS) is commonly reported in patients with cancer and is also a cardinal feature of central disorders of hypersomnolence. Sleep disruption is a very common complaint in patients with cancer.
Hypersomnia is linked to chemotherapy treatment and involves sleeping too much. It is different from fatigue. With hypersomnia, you have trouble staying awake during the day even after a full night's rest.
Cancer-related fatigue is a whole-body exhaustion that doesn't go away with rest or sleep. It may be a symptom of cancer or a side effect of cancer treatments like chemotherapy and radiation therapy. It may also be a symptom of depression or stress from living with cancer.
Cancer-related fatigue affects 80% to 100% of people with cancer. It is reported by 40% of cancer patients at the time of diagnosis, up to 90% of those treated with radiation, and up to 80% of those treated with chemotherapy.
Treatment for cancer-related hypersomnia depends on the cause. If it is due to treatment, medication may be prescribed to help the patient stay awake. If it is due to depression or stress, medication may be prescribed or the patient may be referred to a counselor or therapist.
