A new study has alarmingly found that more than 90 per cent of women undergoing fertility treatments may be getting the wrong doses of fertility drugs meant to stimulate their ovaries.
This, the researchers state, not only means that the drugs may not work properly, but also that they may be exposing women to a greater risk of side effects.
AdvertisementDuring each menstrual cycle, women usually release one egg. The number is however increased during IVF, by giving them drugs. The eggs are then collected surgically.
Geoffrey Trew of Hammersmith Hospital in London and his colleagues used a "dose calculator" to check the dose given to a woman according to her age, body mass index, the estimated number of eggs left in her ovaries, and levels of a hormone called FSH that triggers egg development.
They used the calculator to check the dosage given to 161, and found that 75 per cent were being given a higher dose than required, while 15 percent were being given a lower dose of the infertility drugs.
When 113 of the women were then given the right dose, an average of 10 eggs were harvested.
"That is the ideal number of eggs you would be looking for," the New Scientist quoted Trew, as saying.
The findings of the study were presented at a meeting of the European Society for Human Reproduction and Embryology in Lyon, France, last week.
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