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Does effective management of sleep disorders reduce cancer-related fatigue?

ABSTRACT: Cancer and cancer therapy are often associated with symptoms such as fatigue and sleep disturbances, before, during and after therapy. These symptoms of fatigue and poor sleep often occur in parallel having a significant impact on the physical functioning of patients with cancer. A strong correlation between cancer-related fatigue (CRF) and sleep has been observed in several studies, suggesting that they may be reciprocally related. The co-clustering of these symptoms suggests that they may have similar underlying aetiology and that treatments targeting either symptom may positively affect the other. Studies examining these clusters have shown that these symptoms often co-vary together. The potential mechanisms that link the relationship between insomnia and CRF are intriguing but require further investigation. Despite the high prevalence of insomnia and the often bidirectional relationship between poor sleep and fatigue, there are limited data to support the use of sleep management interventions as a means to reduce fatigue in patients with cancer. Assessment of the available evidence across trials is complicated by different study designs, patient selection criteria, stage of cancer treatment and by the nature of the interventions studied. Improvements from baseline in both sleep parameters and CRF have been documented in a limited number of studies, including two randomized-controlled trials using cognitive behavioural therapy for insomnia (CBT-I). In contrast, the efficacy of pharmacological therapies in reducing both insomnia and CRF is largely lacking. Clearly, treating clinically significant insomnia is likely to have benefits for the patient with cancer and for those who are recovering from cancer. In particular, pharmacotherapies for insomnia, singly or in combination with CBT-I, should be evaluated in multicentre randomized clinical trials to examine their efficacy in improving sleep quality and reducing associated CRF.

SUBMITTER: Zee PC

PROVIDER: S-EPMC3138396 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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Project description:BackgroundCancer-related fatigue (CRF) is a key concern for people living with cancer and can impair physical functioning and activities of daily living. Evidence-based guidelines for CRF are available, yet inconsistently implemented globally. This study aimed to identify barriers and enablers to applying a cancer fatigue guideline and to derive implementation strategies.MethodsA mixed-method study explored the feasibility of implementing the CRF guideline developed by the Canadian Association for Psychosocial Oncology (CAPO). Health professionals, managers and consumers from different practice settings participated in a modified Delphi study with two survey rounds. A reference group informed the design of the study including the surveys. The first round focused on guideline characteristics, compatibility with current practice and experience, and behaviour change. The second survey built upon and triangulated the first round.ResultsForty-five health practitioners and managers, and 68 cancer survivors completed the surveys. More than 75% of participants endorsed the CAPO cancer related fatigue guidelines. Some respondents perceived a lack of resources for accessible and expert fatigue management services. Further barriers to guideline implementation included complexity, limited practical details for some elements, and lack of clinical tools such as assessment tools or patient education materials. Recommendations to enhance guideline applicability centred around four main themes: (1) balancing the level of detail in the CAPO guideline with ease of use, (2) defining roles of different professional disciplines in CRF management, (3) how best to integrate CRF management into policy and practice, (4) how best to ensure a consumer-focused approach to CRF management.ConclusionsTranslating current knowledge on optimal management of CRF into clinical practice can be enhanced by the adoption of valid guidelines. This study indicates that it is feasible to adopt the CAPO guidelines. Clinical application may be further enhanced with guideline adaptation, professional education and integration with existing practices.

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Does effective management of sleep disorders reduce cancer-related fatigue?

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