The use of acupuncture in patients with Raynaud's syndrome: a systematic review and meta-analysis of randomized controlled trials.

The use of acupuncture may be effective for the treatment of Raynaud's syndrome in terms of increasing remission incidence, decreasing daily number of attacks and increasing incidences of positive cold stimulation tests. However, our findings should be interpreted with caution due to small sample sizes, very low quality of evidence and high risk of bias. Future large-scale RCTs are warranted.