Fertility specialist prescribe the medications in order to increase the likelihood of collecting multiple eggs and to control the timing of a patient’s menstrual cycle. The patient and her partner may administer these medications on a daily basis within the privacy of their home. CTTBC specialist then monitor the patient’s progress by evaluating the number of ovarian follicles in development through vaginal ultrasound and serial blood samples taken at CTTBC. A follicle is a sac of fluid in the ovary that may contain an egg (oocyte). Our fertility specialist doctors determine the number and frequency of these tests.
Just prior to egg retrieval, a patient takes an additional injectable medication to complete the maturation of the eggs. The retrieval is scheduled only if there are an adequate number of follicles ready.
Each egg retrieval takes place under short GA or sedation by a qualified Licensed anaesthesiologist who monitor the patients. While sedated, our fertility doctor use the ultrasound mechine to aspirate the follicular fluid from the ovaries. Not all follicles necessarily contain eggs. Following the retrieval, the patient rests in the recovery room under the care of the CTTBC doctors and nurses and medical assistants to allow effects of the anesthesia to subside.Just prior to egg retrieval, a patient takes an additional injectable medication to complete the maturation of the eggs. The retrieval is scheduled only if there are an adequate number of follicles ready.
Once eggs have been retrieved, the male partner’s sperm is collected and eggs and sperm are brought together for fertilization. The embryologist may choose from a number of techniques including the microdrop method or a microinsemination technique called intracytoplasmic sperm injection known as ICSI (“ik-see”). In ICSI, an embryologist injects a single sperm directly into an egg under a microscope with a tiny needle. Fertilized eggs are then incubated in the embryology laboratory for two to five days prior to embryo transfer.
If the embryos have developed normally after incubation, STTBC physician transfers a predetermined number of embryos through the cervix into the uterus via a small catheter (hollow tube). The patient and her physician determine the number of embryos for transfer based on individual circumstances such as age and medical history. No anesthesia is required for this procedure.
In order to enhance the likelihood of conception, the physician prescribes hormonal therapy following embryo transfer. As in the natural reproduction process, a pregnancy may or may not result. If any excess embryos exist after the initial transfer, the patient may request evaluation for possible freezing and use for a subsequent treatment cycle.
Unused embryos can be cryopreserved (frozen) in liquid nitrogen for possible thawing and later use. Embryos may be frozen anytime after the fertilization stage (pronuclear zygotes, which is one day after egg retrieval up to and including the blastocyst stage, which is 5 days after retrieval. Most commonly, embryos are frozen at either day three or day five. Our embryologist will discuss both options and a decision will be reached as to which is best suited for your particular case.
Egg donors are healthy women ideally between the ages of 21 and 30. The following are categories of potential egg donors:
Anonymous Donors: Many women opt to undergo the egg donation process as anonymous donors. These individuals donate eggs to an infertile woman or couple whose identity also remains anonymous.
Fertility Preservation for Cancer Patients
Our team is ready to provide an immediate response for patients who are seeking information and/or services for fertility preservation due to a cancer diagnosis in which treatment will impact a woman’s future ability to conceive and carry a pregnancy.