A Feasibility Study of Group-Delivered Behavioral Interventions for Insomnia Among Breast Cancer Survivors: Comparing Cognitive Behavioral Therapy for Insomnia and a Mind-Body Intervention.

Objectives: An estimated 30%-50% of breast cancer survivors (BCSs) report persistent insomnia, which may affect daytime functioning and quality of life, and lead to longer term health complications. Although the gold standard insomnia intervention, cognitive behavioral therapy for insomnia (CBT-I), has demonstrated efficacy, accessibility is limited due to a scarcity of trained providers, and adherence to therapy is variable. Group-delivered alternative therapies may offer an opportunity to reach and treat BCSs with insomnia. This pilot study was designed to assess feasibility of a group-delivered mind-body intervention compared with group-delivered CBT-I among BCSs. Design: The authors recruited n = 25 stages I - IV BCSs to a 9-week trial of group therapy for insomnia. Eligible women were assigned to the next upcoming group until it was full. Primary outcomes were to assess intervention feasibility measured by (1) qualitative focus group feedback and (2) attendance. The feasibility of using the Insomnia Severity Index (ISI) was also assessed in this population and ISI change scores were gathered to allow for power calculations in a future trial. Means and frequencies were used to describe participant demographics and attendance. Results: The authors found higher attendance (86% vs. 67% of sessions) and greater satisfaction with the intervention (84.6% vs. 57.1%) reported among mind-body participants than among CBT-I participants. Qualitative feedback suggested more group cohesion among the mind-body group and lower incentive to attend in-person among the CBT-I group. Conclusions: The results suggest that delivering a mind-body intervention for BCSs is feasible and acceptable, based on attendance and qualitative feedback.

Mindfulness-based interventions and cognitive function among breast cancer survivors: a systematic review.

BACKGROUND: Breast cancer survivors have an elevated risk of cognitive impairment compared to age-matched women without cancer. Causes of this impairment are complex, including both treatment and psychological factors. Mindfulness-based interventions, which have been shown to improve cognitive function in the general population, may be one approach to mitigate cognitive impairment in this survivor population. Our objective was to conduct a systematic literature review of studies on the effect of mindfulness-based interventions on cognition among breast cancer survivors. METHODS: We conducted searches of three electronic databases (Scopus, PubMed and Cochrane Database of Systematic Reviews) in September 2017 for studies pertaining mindfulness and cognitive function among breast cancer survivors. Abstracts were manually searched by two reviewers and additional articles were identified through reference lists. RESULTS: A total of 226 articles were identified through our systematic search and six met inclusion criteria for this review. The reviewed studies lacked consistency in terms of the cognition domains studied (e.g. executive function, recent memory, etc) and in the measures used to assess cognition. Of the included studies, two found no association between mindfulness interventions and cognitive function, two found improvement that was not sustained at the follow-up, and another two found sustained improvement at 2- or 6-months. CONCLUSIONS: Mindfulness-based interventions have shown some evidence for improving cognition among breast cancer survivors, but further research using validated and comprehensive cognitive assessments is needed. More research is also needed related to the timing, duration and content of mindfulness interventions.