US Doctors Have Found A New Way To Boost Fertility – Part 2 of 3
Yet, it’s far cheaper to produce results for IVF than to pay for the care in the neonatal intensive care unit, Hershlag pointed out. “The preemie is the most expensive type of patient in the hospital”. The unknown study, published Dec 5, 2013 in the New England Journal of Medicine, estimated the number of multiple births using data from 1962 to 1966 – before any fertility treatments were obtainable – comparing them to data from 1971 through 2011. To determine the contribution of non-IVF procedures, the researchers subtracted IVF multiple births from the total number of multiple births.
They also took into use the impact of the mother’s age on the odds of those births. From 1971 to 2011, the percentage of multiple births in the United States nearly doubled – from 1,8 percent to 3,5 percent, the findings showed. And the toll of twin births increased 1,6 times between 1971 and 2009. Births of triplets or more from IVF dropped to 32 percent from 48 percent between 1998 and 2011. Meanwhile, for non-IVF procedures, these births rose to 45 percent from 36 percent, according to the report.
In his practice, North Shore’s Hershlag doesn’t use non-IVF care anymore, succeeding to IVF right away. Hershlag sees a day when implantation rates will improve even more and the number of multiple births will be negligible. Many embryos aren’t genetically fit to become babies, and they inveterately don’t implant. “We know that about half of human embryos are abnormal chromosomally.
Most chromosomal abnormalities do not make it. Either they don’t implant or they miscarry. Without our intervention, they get excluded on a routine basis in the normal fertility of human beings”. It used to be that to increase the odds for implantation, many embryos were used during IVF. Today single-embryo transfer is becoming more popular, which is why there are fewer multiple births.