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The In Virto Fertilisation (IVF) involves the combination of an egg with a sperm in the glass which is outside the human body.

Babies Born by IVF have Increased in Birthweight

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A new study reveals that babies born by In Virto Fertilisation (IVF) at St. Mary’s Hospital in Manchester have become heavier by 200g over the past 25 years. This study was done by the researchers of the University of Manchester.

This study was published in the journal Human Reproduction on 14 March 2019. The study highlights the drastic change in the results of IVF technology when it was initially introduced and today.

The In Virto Fertilisation (IVF) involves the combination of an egg with a sperm in the glass which is outside the human body. This development of the embryo is later implanted in the uterus. IVF helps millions of infertile parents to have a baby.

For this new study, researchers have studied the past records of 3000 singletons live birth at St Mary’s Hospital Manchester. The team of researchers claims that with a continuous increase in the success rate of IVF treatment, the birthweight has also increased from 1991 to 2015, by an average of 180 kgs.

According to the pervious studies, in the first 20 or 30 years of initial cases of IVF children born from this treatment tend to have low birthweight. The studies have also shown that non-IVF children may have health issues later in adulthood.

The earlier studies also suggest that children born through IVF treatment have shown postnatal catch-up growth after being born with low birthweight. This may add up to more health risks. According to a scientist, the freezing embryos may result in normal birthweight and early growth of babies.

Professor Daniel Brison, the lead study author, said, “Although it is too soon to know if there will be any long term health impact on earlier IVF children, such effects would, in any case, be small. But we do feel it is important to continue to monitor the health of all IVF children and alter IVF practices to make the treatments as safe as possible.

Additionally, he said, “Our research further suggests that the newest generation of IVF children may be at lower risk. We believe that is likely to be because IVF techniques have changed markedly over the past 25 years –though it’s hard to pin point exactly which changes might be important.”

Now in IVF treatment fresh embryos are implanted in the uterus. Researchers are currently unable to find the reason why there is an increase in the birthweight now and they are trying to find an answer to it. However, they suggests that this increase is gradual.

According to the researchers, scientific technology has been changed so much over the years, which resulted in a more successful rate of this treatment. However much research is needed to be done to find out the reason of these fluctuations in birthweights.

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