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The IVF Fertility Blog

Fertility Preservation Through Embryo Cryopreservation

In a fresh Conventional IVF, only quality embryos are transferred directly to the woman’s uterus for hopeful implantation into her uterine lining. Today, many couples are preserving their future fertility using IVF technology coupled with embryo cryopreservation. After a fresh IVF cycle, quality embryos are cryopreserved for future Frozen Embryo Transfer (FET) procedures.

Success of Fertility Preservation and FET

The success of a healthy pregnancy achieved through the FET process has increased substantially in recent years. Healthy pregnancies have been achieved after an embryo has been frozen for up to 10 years. Pregnancy success is determined by the quality of the frozen embryo.

Uterine Cavity Assessment Before FET   150203-ivf-embryos-736a_3ed0541ffdab61194651bef429fba66a.nbcnews-fp-1200-800.jpg

To maximize pregnancy success through FET the woman must have a normal uterine cavity. One of the following three diagnostic tests will be performed to increase the chances of a successful pregnancy through FET.

  • Hysterosonogram
  • HSG
  • Hysteroscopy

Abnormalities of the uterine cavity can be corrected surgically before proceeding with the FET to increase the woman’s pregnancy success rate.

Hormone Medication in Preparation for FET

Before a FET procedure, the woman’s uterus must be prepared to accept the embryo for implantation through hormone medications.

First Step: Pituitary Suppression Hormone

Hormone medication is administered to suppress the woman’s pituitary gland and reduce the chances of unexpected ovulation. Approximately two weeks of Lupron injections will be required before the FET procedure.

Second Step: Duplicate Normal Uterine Function

Hormone medication must be administered to duplicate the changes normally occurring within a woman’s uterus during a normal menstrual cycle. This step requires two medications in preparation for the FET: Estrogen and Progesterone

FET Procedure in Motion

  • Progesterone matures the uterine lining
  • Progesterone creates a window of implantation in anticipation of a set FET date
  • Lupron injections are ceased upon the beginning of progesterone administration
  • Embryos are scheduled for thaw in the laboratory
  • FET is scheduled on a set date
  • Progesterone is continued daily to help prepare the patient’s uterine lining for implantation of the fertilized egg – the embryo
  • After the embryo transfer, a pregnancy test is scheduled on a date prescribed by the doctor through a blood draw

Fertility Preservation Experts

Don’t delay your future planning options. Contact New Hope Fertility NYC if you’re considering preserving your embryos for the future. It is important to work with a fertility care team understanding which IVF treatment protocol is best for you as an individual. Customized IVF care at New Hope Fertility NYC offers the highest success rates and best overall patient satisfaction.


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