Objective
Sleep disturbance is a major consequence of hot flashes among breast cancer survivors. This study evaluated the effects of electro-acupuncture vs. gabapentin for sleep disturbances among breast cancer survivors experiencing daily hot flashes.
Methods
We analyzed data from a randomized controlled trial involving 58 breast cancer survivors experiencing bothersome hot flashes at least two times per day. Participants were randomly assigned to receive eight weeks of electro-acupuncture or daily gabapentin (total dose of 900 mg per day). The primary outcome was change in the total Pittsburgh Sleep Quality Index (PSQI) score between groups at Week 8. Secondary outcomes include specific PSQI domains.
Results
By the end of treatment at Week 8, the mean reduction in PSQI total score was significantly greater in the electro-acupuncture group as compared to the gabapentin group (−2.6 vs. −0.8, p=0.044). The electro-acupuncture also had improved sleep latency (−0.5 vs. 0.1, p=0.041) and sleep efficiency (−0.6 vs. 0.0, p=0.05) compared to the gabapentin group. By Week 8, the electro-acupuncture group improved sleep duration, sleep disturbance, sleep latency, daytime dysfunction, sleep efficiency, and sleep quality (p<0.05 for all) compared to baseline, whereas the gabapentin group improved in duration and sleep quality only (p<0.05).
Conclusions
Among women experiencing hot flashes, the effects of electro-acupuncture are comparable to gabapentin for improving sleep quality, specifically in the areas of sleep latency and efficiency. Larger randomized controlled trials with longer follow-ups are needed to confirm this preliminary finding.
Clinical Trial Registration
NCT01013337