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In the 2,500+ years that have passed since acupuncture was first used by the ancient Chinese, it has been used to treat a number of physical, mental and emotional conditions including nausea and vomiting, stroke rehabilitation, headaches, menstrual cramps, asthma, carpal tunnel, fibromyalgia and osteoarthritis, to name just a few. Now, a meta-analysis of randomized controlled trials which is being published this month in Menopause, the journal of The North American Menopause Society (NAMS), indicates that acupuncture can affect the severity and frequency of hot flashes for women in natural menopause.
An extensive search of previous studies evaluating the effectiveness of acupuncture uncovered 104 relevant students, of which 12 studies with 869 participants met the specified inclusion criteria to be included in this current study. While the studies provided inconsistent findings on the effects of acupuncture on other menopause-related symptoms such as sleep problems, mood disturbances and sexual problems, they did conclude that acupuncture positively impacted both the frequency and severity of hot flashes.
Women experiencing natural menopause and aged between 40 and 60 years were included in the analysis, which evaluated the effects of various forms of acupuncture, including traditional Chinese medicine acupuncture (TCMA), acupressure, electroacupuncture, laser acupuncture and ear acupuncture.
Interestingly, neither the effect on hot flash frequency or severity appeared to be linked to the number of treatment doses, number of sessions or duration of treatment. However, the findings showed that sham acupuncture could induce a treatment effect comparable with that of true acupuncture for the reduction of hot flash frequency. The effects on hot flashes were shown to be maintained for as long as three months.
Although the study stopped short of explaining the exact mechanism underlying the effects of acupuncture on hot flashes, a theory was proposed to suggest that acupuncture caused a reduction in the concentration of β-endorphin in the hypothalamus, resulting from low concentrations of estrogen. These lower levels could trigger the release of CGRP, which affects thermoregulation.
“More than anything, this review indicates that there is still much to be learned relative to the causes and treatments of menopausal hot flashes,” says NAMS executive director Margery Gass, MD. “The review suggests that acupuncture may be an effective alternative for reducing hot flashes, especially for those women seeking non- pharmacologic therapies.”
A recent review indicated that approximately half of women experiencing menopause-associated symptoms use complementary and alternative medicine therapy, instead of pharmacologic therapies, for managing their menopausal symptoms.
Abstract:
Methods: We systematically searched PubMed/Medline, PsychINFO, Web of Science, Cochrane Central Register of Controlled Trials, and CINAHL using keywords such as acupuncture, hot flash, menopause-related symptoms, and quality of life. Heterogeneity, moderator analysis, publication bias, and risk of bias associated with the included studies were examined.
Results: Of 104 relevant studies, 12 studies with 869 participants met the inclusion criteria and were included in this study. We found that acupuncture significantly reduced the frequency (g = −0.35; 95% CI, −0.5 to −0.21) and severity (g = −0.44; 95% CI, −0.65 to −0.23) of hot flashes. Acupuncture significantly decreased the psychological, somatic, and urogenital subscale scores on the Menopause Rating Scale (g = −1.56, g = −1.39, and g = −0.82, respectively; P < 0.05). Acupuncture improved the vasomotor subscale score on the Menopause-Specific Quality of Life questionnaire (g= −0.46; 95% CI, −0.9 to −0.02). Long-term effects (up to 3 mo) on hot flash frequency and severity (g = −0.53 and g = −0.55, respectively) were found.
Conclusions: This meta-analysis confirms that acupuncture improves hot flash frequency and severity, menopause-related symptoms, and quality of life (in the vasomotor domain) in women experiencing natural menopause.
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