Acupuncture boosts in-vitro pregnancy chances: study
PARIS
- Acupuncture can increase the chance of success for
couples seeking to have a baby through in-vitro
fertilisation (IVF), according to a review published online
Friday by the British Medical Journal (BMJ).
The
paper looked at seven studies in which 1,366 women
undergoing IVF were given acupuncture or a sham form of it
— in which dummy sensations were substituted for pinpricks
— or no additional treatment at all.
Overall,
the odds of pregnancy increased by 65 percent among the
acupuncture group, although this figure may be overstated as
data for the trials was uneven, say the authors.
They
note that in trials where there was a generally high success
rate, acupuncture conferred only a relatively slender
advantage, of 24 percent.
In
four of the trials where the outcome of IVF was known,
acupuncture boosted the probability of a live birth by 91
percent.
Cautiously
describing their findings as “preliminary evidence,” the
authors say acupuncture “improves rates of pregnancy and
live birth” among women undergoing IVF.
Previous
research has generally found that acupuncture either has no
effect on pregnancy rates or somewhat increases the chance
of success.
An
exception to this was a study last year that found women who
had had acupuncture with IVF were less likely to get
pregnant compared with counterparts who had not had the
needles treatment.
Acupuncture
has been used in China for centuries as a spur to
reproduction, and its use is growing amongst couples turning
to IVF to have a baby.
Among
the theories circulating as to why acupuncture may be
effective with IVF is the idea that it stimulates the flow
of blood to the uterus, thus making the lining of the womb
more receptive to the implantion of the embryo.
But
assessing the practical benefits of acupuncture is a
challenge, given the so-called placebo effect.
This
term is used to describe an improvement that can happen
among volunteers who are given a dummy treatment, or a
placebo, used to draw a comparison with the real treatment.
Under
IVF, a woman is giving hormones to stimulate production of
eggs, which are gently harvested with a needle and
fertilised in the lab using sperm from her partner.
One
or several embryos are then transferred back into her uterus
via the cervix.
AFP
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