What is a Freeze-All Cycle?
What is a freeze-all cycle? A fresh embryo transfer occurs in the same IVF cycle in which the embryos were created (a “fresh” cycle). Any embryos remaining following a fresh embryo transfer can be frozen (vitrified) for later use in a “frozen” embryo transfer (FET) cycle. Sometimes, instead of performing a fresh embryo transfer, all embryos […]
Earlier this year, a mother in Tennessee gave birth to a healthy baby born from an embryo frozen 24 years ago. This remarkable case appears to represent the longest time frame for a frozen embryo to result in a successful live birth. The baby girl, Emma, was conceived through a process called embryo adoption. The couple […]
Many couples are wary of using cryopreserved embryos believing that there are increased risks of health to the child and lower chance of a successful pregnancy. However, transfer of cryopreserved embryos is safe and highly effective in helping couples achieve a successful pregnancy. Numerous studies performed in the last few years and an analysis of […]
One Healthy Child At a Time
The mantra “one healthy child at a time” echoes in our actions and our words. Dissolving are the days of generating as many embryos as are feasibly in an IVF stimulation cycle and the transfer of 2-3 embryos to maximize pregnancy. Obviously, the risk of higher order pregnancy, twins and triplets was the greatest risk […]
In the last few years our ability to grow embryos for 5 days, at which point they are called blastocysts, has led to extremely high pregnancy rates with both fresh and frozen embryos. Many of the top IVF centers in the country, including ours, have changed to transferring only blastocyst stage embryos (Day 5 embryos). […]
Lowering the Twin Rate in IVF
Many suffering infertility when faced with the prospect of IVF desire twins in an attempt to expeditiously complete their family. Unfortunately, twin pregnancies do not always come out healthy as there are both adverse maternal consequences such as pregnancy induced hypertension and diabetes, and other even more serious problems predominantly preterm labor and delivery resulting […]
Cryopreservation: What is it?
Cryopreservation (freezing) of embryos has been associated with IVF since its inception in the 1908’s. The use of Frozen Embryo Transfer (FET) has resulted greater than 150,000 health births worldwide. The availability of freezing viable human embryos is a necessary and desirable process. Cryopreservation indirectly allows for the control of how many embryos can be […]
Laser Assisted Hatching of Vitrified Embryos
A human egg or oocyte is surrounded by an outer protective shell known as the zona pellucida. As an embryo develops from zygote (day 1) to blastocyst (day 5), the outer zona progressively thins (see photos of day 3 embryo with thicker zona and day 5 blastocyst with thin zona). This ultimately enables the embryo […]