Vita Altera IVF Center
Embryo Freezing Procedure in Cyprus
Embryo freezing is the process of storing suitable embryos, developed through IVF or ICSI treatment, for future use using the vitrification method. At the Vita Altera IVF Center, the embryo freezing process in Cyprus is personalized based on the embryo’s developmental characteristics, the prospective mother’s health status, uterine lining suitability, genetic testing plans, and future transfer goals.
What is Embryo Freezing?
Embryo freezing is the process of storing suitable embryos, created by fertilizing egg and sperm cells in a laboratory environment, at very low temperatures for future use.
During IVF treatment, eggs collected from the prospective mother are fertilized with sperm cells using either classical IVF or ICSI (microinjection). The resulting embryos are monitored in the embryology laboratory for several days.Embryos that are not transferred and are found to have developmental characteristics suitable for storage can be frozen using the vitrification method, with the couple’s consent and in accordance with current regulations.These frozen embryos can be used in the future without the need for a new ovarian stimulation and egg retrieval procedure. After the prospective mother’s uterus is prepared for transfer, the embryo is thawed and, if it retains its viability, transferred to the uterus.Does a frozen embryo continue to develop?While stored under appropriate cryostorage conditions, the embryo does not actively develop. After the thawing process, the embryo’s development is re-evaluated in the laboratory if it retains viability.
Embryo Freezing in Cyprus
The embryo freezing process in Cyprus involves the evaluation of embryos created during IVF, selection of suitable embryos, freezing via vitrification, secure identification, and storage in specialized tanks.
At the Vita Altera IVF Center, the embryo’s day of development, cell structure, blastocyst characteristics, and laboratory assessments are reviewed by expert embryologists.During storage, patient information, embryo development day, freezing date, egg and sperm source, and other laboratory data are meticulously recorded.Patients coming from Turkey or other countries for treatment can have their initial consultation online. Previous IVF and embryology reports can be reviewed to provide a preliminary assessment regarding embryo freezing, storage, or a frozen embryo transfer program.01
Embryological Assessment
Embryos are evaluated based on their developmental stage and laboratory characteristics to determine those suitable for freezing.02
Vitrification Process
Suitable embryos are stored for future use using the vitrification method, which is based on rapid cooling.03
Secure Recording and Storage
Embryos are matched with patient information and recorded according to cryostorage safety procedures.Why Are Embryos Frozen?
Embryos may be frozen to enable future use of suitable embryos not transferred during IVF treatment, or if the fresh transfer is medically postponed.
- Availability of usable extra embryos after fresh transfer.
- High risk of ovarian hyperstimulation syndrome (OHSS) in the prospective mother.
- Uterine lining not suitable for fresh transfer.
- Hormone levels not optimal for transfer timing.
- Planned preimplantation genetic testing (PGT) on embryos.
- Need to wait for genetic test results.
- Presence of polyps, fibroids, or adhesions requiring treatment within the uterus.
- Development of infection or other health issues around the transfer period.
- Implementation of an embryo banking program.
- Desire to store embryos for a future sibling plan.
- Postponement of treatment timeline for personal or medical reasons.
- Fertility preservation before undergoing treatment that may affect fertility.
Does freezing an embryo mean it is of poor quality?No. Embryos with suitable developmental characteristics can be frozen to allow for transfer at a later date. The decision to freeze does not, by itself, indicate that the embryo is of poor quality or unhealthy.
Who is Embryo Freezing Suitable For?
Embryo freezing can be considered for patients who have suitable embryos remaining after IVF treatment or for those whose embryo transfer needs to be postponed.
- Couples who produce multiple suitable embryos following IVF treatment.
- Those planning to have another child in the future after the first transfer.
- Patients for whom fresh embryo transfer is not medically suitable.
- Women whose transfer is postponed due to OHSS risk.
- Patients whose uterine lining has not developed adequately.
- Couples planning to have PGT performed on their embryos.
- Patients banking embryos over multiple IVF cycles.
- Couples wishing to store embryos before chemotherapy or radiotherapy.
- Patients whose transfer is postponed before uterine surgery or hysteroscopy.
- Couples planning a frozen embryo transfer at a later date.
Is every embryo created frozen?No. Embryos are assessed based on their developmental characteristics and laboratory evaluations. Only embryos considered capable of withstanding the freezing and thawing process are stored.
What is a Freeze-All Treatment?
Freeze-all is an approach where all suitable embryos obtained during an IVF treatment are frozen, and no fresh embryo transfer is performed in the same cycle.
After the embryos are stored, the prospective mother’s ovaries and hormone levels recover from the treatment effects. The uterine lining can be prepared for transfer in a subsequent cycle, either naturally or with medication.The freeze-all approach is not a routine method required for every IVF patient. The decision should be made considering the patient’s ovarian response, OHSS risk, hormone results, uterine lining condition, and embryo development.High OHSS Risk
For patients whose ovaries over-respond to medication, postponing fresh transfer can support the safety of the prospective mother.Unsuitable Uterine Preparation
If the uterine lining is not optimal for transfer, embryos can be stored, and the uterus can be prepared in a subsequent cycle.Genetic Testing Planning
If embryo biopsy is required and PGT results are pending, embryos can be frozen and transferred later.Personalized Timing
The transfer date can be planned more flexibly according to the patient’s health status and personal treatment circumstances.Does freeze-all always increase success rates?No. It cannot be said that freezing all embryos increases the chance of pregnancy or live birth for all patient groups. This method is particularly considered for patients where fresh transfer is not safe or suitable.
What is Embryo Vitrification?
Vitrification is a modern cryopreservation method based on ultra-rapid cooling of embryos to minimize the formation of ice crystals that could cause damage within the cells.
Prior to vitrification, embryos are exposed to specialized protective solutions. These solutions help protect the embryo cells during the cooling and warming process.The embryo is then placed on a special carrier system and stored at very low temperatures. Under suitable conditions, the embryo’s biological activities cease during storage.When the embryo is to be used, it is warmed in a controlled laboratory procedure, and the protective substances are gradually removed. The embryo’s viability and cellular integrity are assessed by the embryologist.Freezing vs. Vitrification?Embryo freezing is the general term for the process. Vitrification refers to the rapid cooling method currently used for embryo cryopreservation.
How is the Embryo Freezing Process Performed in Cyprus?
The embryo freezing process consists of sequential IVF and embryology stages, from obtaining the egg and sperm cells to storing the embryos in the laboratory.
1
Initial Assessment and Treatment Planning
The couple’s medical history, ovarian reserve, sperm characteristics, previous treatments, and future plans for the embryos are evaluated.2
Controlled Ovarian Stimulation
Personalized hormone medications are used to stimulate the development of multiple eggs in the prospective mother’s ovaries.3
Monitoring Follicle Development
The ovarian response to medication is monitored via ultrasound and necessary blood tests. Medication dosages may be adjusted based on the results.4
Egg Retrieval
Eggs that have reached appropriate maturity are collected using an ultrasound-guided egg retrieval procedure.5
Preparation of the Sperm Sample
The sperm sample to be used in the treatment is prepared in the laboratory, and viable sperm cells for the fertilization method are evaluated.6
Fertilization of Eggs
Mature eggs are fertilized using either classical IVF or ICSI (microinjection), depending on sperm characteristics and the treatment plan.7
Fertilization Check
Eggs are checked for signs of fertilization. Eggs showing normal fertilization are monitored for embryo development.8
Monitoring Embryo Development
Embryos are monitored in the laboratory for several days. Cell division and blastocyst development are evaluated by embryologists.9
Selection of Embryos for Freezing
Embryos with developmental characteristics suitable for freezing are identified, and a storage plan is made with the couple’s consent.10
Vitrification
Embryos are passed through special protective solutions, placed on suitable carriers, and vitrified using a rapid cooling method.11
Identification and Security Check
Patient information, embryo development day, freezing date, and laboratory records are verified according to safety procedures.12
Storage in Cryostorage Tanks
Vitrified embryos are stored in specialized cryostorage tanks at very low temperatures for future use.At Which Developmental Stage Can Embryos Be Frozen?
Embryos can be frozen either at an early cleavage stage or at the blastocyst stage, based on laboratory evaluation. The most suitable day for freezing may vary for each patient.
Day 3 Embryo
On the third day after fertilization, the embryo is generally at the cleavage stage. Freezing on day 3 may be considered based on the number of embryos, treatment plan, and laboratory findings.- Embryo is at an early cleavage stage.
- May be considered for patients with a limited number of embryos.
- Cell count and division pattern are assessed.
- Development is re-evaluated after future thawing.
Blastocyst Embryo
The advanced developmental stage typically reached by the embryo on day 5 or 6 is called the blastocyst stage. Blastocysts showing good development can be stored via vitrification.- Embryo is at a more advanced developmental stage.
- More information about developmental capacity can be obtained.
- Can support single embryo transfer planning.
- Not all embryos will reach the blastocyst stage.
Is freezing at blastocyst stage always better?No. The day of freezing is determined by evaluating the number of embryos, their developmental characteristics, and the couple’s treatment history. For some patients with a limited number of embryos, waiting until the blastocyst stage may not be appropriate.
The Difference Between Embryo and Egg Freezing
Both methods aim to preserve future reproductive options, but they differ significantly regarding the fertilization status and genetic source of the stored cells.
Embryo Freezing
The egg cell is fertilized with a sperm cell, and the resulting suitable embryo is stored. The embryo carries the genetic material from both the egg and sperm sources.- Fertilized and developing embryos are stored.
- A sperm source is required during treatment.
- The result of fertilization is known beforehand.
- The embryo’s developmental characteristics can be assessed.
- Required consents for future use are evaluated.
Egg Freezing
Egg cells are stored without being fertilized by sperm. The individual can decide on the sperm source for future use at a later time.- Unfertilized egg cells are stored.
- Sperm is not required during the procedure.
- Fertilization and embryo development occur in the future.
- Not every thawed egg may develop into an embryo.
- May offer greater individual flexibility in reproductive planning.
Which method is more suitable?The decision should be made based on the individual’s relationship status, sperm source, future plans, health status, and preferences regarding the future use of the stored material.
Embryo Freezing After PGT
When preimplantation genetic testing (PGT) is planned, the embryo can be frozen after biopsy while waiting for the results.
PGT typically involves evaluating cell samples taken from suitable embryos that have reached the blastocyst stage, which are then assessed in a genetics laboratory.Following the biopsy, the embryo is stored via vitrification. Once the genetic test results are available, an embryo suitable for transfer can be used in a subsequent cycle after the uterus has been prepared.Genetic testing is not mandatory for every IVF patient or every embryo. The necessity for PGT should be assessed based on the couple’s genetic history, age, pregnancy losses, and treatment findings.Does PGT guarantee an embryo is completely healthy?No. PGT provides information about specific genetic or chromosomal characteristics within the scope of the test performed. It does not guarantee implantation, pregnancy continuation, or all health characteristics of the child to be born.
What is Embryo Banking and Accumulation?
Embryo banking involves freezing suitable embryos obtained from multiple egg retrieval cycles to be evaluated together in the future.
This method may be considered, particularly for some patients who produce a limited number of eggs or embryos in a single treatment cycle.Embryos obtained from each cycle are recorded and frozen separately. Once the planned number is reached, the genetic testing or embryo transfer phase can proceed.Embryo banking is not a routine method proven to increase success for all patients with low ovarian reserve. Age, ovarian reserve, treatment cost, time, and the likelihood of obtaining viable embryos should be evaluated together.Does having more embryos always mean higher success?While having more embryos stored may increase transfer options, it does not guarantee the genetic characteristics of the embryos or that every transfer will result in pregnancy.
How Long Can Frozen Embryos Be Stored?
Embryos can be stored for extended periods under appropriate cryostorage conditions. Continued storage depends on renewing necessary consents and complying with current legal regulations.
During the storage period, it is important for the couple to keep their contact information up to date and to follow renewal notifications sent by the center.Issues such as storage duration, annual fees, future use of embryos, transfer to another center, or termination of storage are addressed according to signed documents and prevailing regulations.Extending the storage period does not advance the biological age of the embryo as it would inside the body. The age factor primarily relates to the age at which the egg was collected.Are embryos stored indefinitely automatically?No. Maintaining valid contact information, renewing consents, and completing necessary administrative procedures are required for continued storage. Current storage conditions are evaluated based on the contract with the center and the relevant legislation.
How Are Frozen Embryos Used in the Future?
When embryos are intended for use, the prospective mother’s uterus is prepared for transfer, either by tracking natural ovulation or using hormone medications.
1
Health and Uterine Evaluation
The current health status, uterine structure, menstrual cycle pattern, and previous transfer outcomes are assessed.2
Choosing the Transfer Preparation Method
The appropriate transfer protocol is selected from options including natural, modified natural, or medicated cycles with estrogen and progesterone.3
Monitoring the Uterine Lining
Endometrial thickness and structure are monitored via ultrasound and, if necessary, hormone tests.4
Determining Transfer Timing
The timing is planned to synchronize the embryo’s developmental stage with ovulation timing or the duration of progesterone use.5
Thawing the Embryo
The embryo designated for transfer is thawed in a controlled laboratory setting and assessed for viability.6
Post-Thaw Laboratory Monitoring
The embryo’s cellular integrity and developmental capacity are examined. If needed, brief laboratory monitoring may occur before transfer.7
Embryo Transfer
A viable, suitable embryo is transferred to the prospective mother’s uterus using a thin catheter.8
Pregnancy Test and Follow-up
The date for the pregnancy test is scheduled along with supportive medications. In case of a positive result, ultrasound follow-up is planned.Factors Affecting Embryo Freezing Success
The future outcome of embryo freezing is not solely dependent on the vitrification method. Many factors, from embryo formation to post-transfer period, are mutually influential.
Age at Egg Retrieval
The age at which eggs were collected is a significant factor regarding the embryo’s chromosomal characteristics and developmental potential.Egg Quality
Obtaining mature and viable eggs is a fundamental step for embryo development.Sperm Characteristics
Sperm count, motility, morphology, and genetic integrity can influence fertilization and embryo development.Embryo Development Day
Whether the embryo is at an early cleavage or blastocyst stage can affect the freezing and thawing plan.Embryo Developmental Characteristics
Cell structure, division pattern, and blastocyst grading are considered when assessing embryo suitability for freezing.Vitrification Protocol
The preparation of the embryo in protective solutions, cooling, and storage require careful laboratory practices.Thawing Process
Controlled warming of the embryo and removal of protective substances are crucial for maintaining viability.Uterine Structure
Even if a viable embryo is obtained after thawing, the uterine cavity and lining must be suitable for transfer.Transfer Timing
Synchronization between the hormonal development of the uterine lining and the embryo’s developmental stage is important.Does every frozen embryo survive thawing?No. While modern vitrification methods support high post-thaw survival rates, it cannot be guaranteed that every embryo will retain its viability and developmental capacity after thawing.
Does embryo freezing guarantee pregnancy?No. Frozen embryos offer the option of future transfer without a new egg retrieval, but outcomes such as thawing survival, development, implantation, pregnancy, and live birth cannot be guaranteed.
Advantages of Embryo Freezing
Embryo freezing allows suitable embryos obtained from a single egg retrieval cycle to be used at different times.
May Reduce Need for Further Egg Retrievals
If suitable frozen embryos are available, subsequent transfers may not require new ovarian stimulation and egg retrieval.Flexible Transfer Timing
Transfer can be planned in a different menstrual cycle when the uterine lining and general health are optimal.Supports Safety in OHSS Risk
For patients with high ovarian response, fresh transfer can be postponed, and embryos can be stored.Allows Waiting for PGT Results
After embryo biopsy, embryos can be frozen until genetic test results are complete.Future Sibling Planning
Suitable embryos not transferred can be stored for potential use in a future pregnancy plan.Fertility Preservation
Embryos created before medical treatments that may affect fertility can be stored for future use.Risks and Limitations of Embryo Freezing
Although embryo freezing has been a laboratory practice for many years, there are biological, technical, and decision-related limitations at various stages.
No Embryos Suitable for Freezing
Not all collected eggs may fertilize, and not all fertilized eggs may reach a stage suitable for freezing.Loss of Viability After Thawing
A small percentage of frozen embryos may not retain viability or transferable characteristics after thawing.Failure to Achieve Pregnancy
Transferring a viable embryo after thawing does not guarantee implantation or pregnancy.Storage Decisions
Decisions regarding the future use, continued storage, or termination of embryo storage are significant and require informed choices.Requirement for Joint Consent
The conditions for use and storage of embryos may depend on the consents of the egg and sperm providers and the regulations in force.Annual Storage Costs
Ongoing storage and renewal fees apply for as long as the embryos are stored.Embryo Transport Process
Transferring embryos stored at another center to Vita Altera, or from Vita Altera to another center, is subject to specific medical, laboratory, and legal conditions.
Before transport, embryology reports, freezing method, embryo development day, storage records, and required consent documents are reviewed.Embryos are not transported under normal cargo conditions. Special transport tanks and authorized procedures suitable for cryological transport must be used.Whether inter-country or inter-center transport is possible depends on prevailing regulations, the receiving center’s policies, and the suitability of the documents.What should be sent before embryo transport?Sharing the embryology report, embryo count, development day, quality information, freezing date, method, and documents from the storage center in advance facilitates the evaluation.
Embryo Freezing Costs in Cyprus
Embryo freezing costs in Cyprus can vary depending on the number of embryos, laboratory procedures applied, storage duration, and the future use plan for the embryos.
Embryo freezing is typically an additional laboratory and storage procedure performed following IVF or ICSI treatment.Key factors that may affect the total cost include:- Scope of IVF or ICSI treatment
- Duration of embryo culture in the laboratory
- Number of embryos to be frozen
- Development day of the embryos
- Vitrification procedure
- Duration of the initial storage period
- Annual embryo storage fees
- Need for PGT biopsy and genetic testing
- Embryo thawing procedure
- Frozen embryo transfer
- Transport of embryos from another center
- Pre-transfer uterine preparation and medications
- Ultrasound and hormone monitoring
- Additional uterine evaluations
What details should be asked when comparing costs?When comparing embryo freezing prices, it is important to ask whether the vitrification procedure, initial storage period, annual renewal fees, future embryo thawing, and frozen embryo transfer are included in the stated price.
Detailed current treatment scope and cost information will be shared by our patient coordinators after evaluating your IVF plan or existing embryology reports.Safety, Identification, and Confidentiality
Ensuring accurate matching of information pertaining to patients, egg and sperm providers, and embryos is a fundamental aspect of laboratory safety during the embryo freezing process.Identification and verification procedures are applied during the fertilization, development, freezing, storage, and thawing stages of embryos.Health, identity, and treatment information related to stored embryos is protected in accordance with patient confidentiality rules.At Vita Altera, laboratory identification processes are carried out with recording and matching systems that support the secure tracking of embryo and patient information.Why is embryo storage consent important?Critical aspects such as how long embryos will be stored, under what conditions they can be used, and future decisions must be explained before treatment and documented with the required written consents.
Why Choose Vita Altera IVF Center?
At Vita Altera, embryo freezing is not viewed as just a brief laboratory procedure, but as a comprehensive process encompassing embryo evaluation, safe vitrification, accurate identification, storage, and future transfer planning.
- Personalized IVF and embryo freezing planning
- Experienced obstetricians and gynecologists
- Experienced embryology and laboratory team
- Advanced embryology laboratory
- Modern embryo vitrification practices
- EmbryoScope+ for embryo development monitoring
- Chip ID sample matching and security system
- Secure embryo identification
- Fresh and frozen embryo transfer planning
- Embryo freezing option after PGT
- Evaluation of embryo banking programs
- Natural and medicated FET preparation options
- Personal patient coordinator support
- Multilingual patient counseling
- Online initial consultation possibility
- Coordination for embryo transport
- Regular pre- and post-treatment follow-up
Vitrification is not a pregnancy guaranteeModern laboratory methods can support the storage and future use of embryos. However, the outcome depends on the age at egg retrieval, sperm characteristics, embryo development, post-thaw viability, uterine structure, and many individual factors.
Frequently Asked Questions About Embryo Freezing
What is embryo freezing?
Embryo freezing is the storage of suitable embryos, created through IVF or ICSI, for future use using the vitrification method.
What does vitrification mean?
Vitrification is a rapid cooling and cryopreservation method aimed at minimizing the formation of harmful ice crystals within the embryo cells.
Can every embryo be frozen?
No. Embryos are evaluated based on their development day, cell structure, and laboratory findings. Only embryos with characteristics suitable to withstand the freezing and thawing process are stored.
Is a frozen embryo unhealthy?
No. Freezing an embryo does not mean it is of poor quality or unhealthy. Embryos showing good development can be frozen to allow for transfer at a later date.
Is a frozen embryo or a fresh embryo more successful?
There is no single method that is more successful for every patient. The appropriate transfer approach is determined by evaluating the uterine lining, hormone levels, ovarian response, embryo development, and overall health status.
What does freeze-all mean?
Freeze-all is an approach where all suitable embryos obtained during IVF treatment are frozen, and no fresh transfer is performed in the same cycle.
On which day are embryos frozen?
Embryos can be frozen either at an early cleavage stage or at the blastocyst stage, depending on the treatment plan. The freezing day is determined by the embryo count and developmental characteristics.
Can a day 3 embryo be frozen?
Yes. Day 3 embryos found suitable during laboratory evaluation can be stored via vitrification.
Can a blastocyst be frozen?
Yes. Embryos showing suitable blastocyst development on day 5 or 6 can be taken into storage via vitrification.
Does every frozen embryo survive thawing?
No. Although modern vitrification methods can achieve high survival rates, it cannot be guaranteed that every embryo will retain viability after thawing.
How long does the embryo thawing process take?
The laboratory thawing and evaluation time for an embryo can vary depending on the protocol used. It is planned according to the transfer program, the embryo’s developmental day, and its condition after thawing.
Can an embryo be refrozen after thawing?
In some specific medical situations, refreezing an embryo may be considered. However, the potential effects of additional thawing and freezing should be individually assessed by the embryology team.
Does a frozen embryo age?
The fundamental biological characteristics of the embryo are related to the age at the time the egg was collected. The storage duration under appropriate cryostorage conditions does not advance the embryo’s biological age as it would inside the body.
How many years can embryos be stored?
Embryos can be stored for extended periods under suitable cryostorage conditions. The valid storage duration, consent renewal conditions, and administrative procedures are conducted according to current regulations and the storage agreement.
What happens when the storage period expires?
The continuation, renewal, or termination of storage is evaluated according to the required written consents and regulations in force. Keeping contact information up-to-date is crucial.
Is egg retrieval repeated for a frozen embryo transfer?
If existing frozen embryos are to be used, new ovarian stimulation and egg retrieval are generally not required. The uterus is prepared for transfer, and the embryo is thawed and used.
Is a frozen embryo transfer painful?
Embryo transfer is usually a short procedure that does not require anesthesia. A sensation of mild pressure or brief discomfort may be felt during the passage of the catheter.
How is the uterus prepared for a frozen embryo transfer?
The uterine lining can be prepared either by tracking natural ovulation or by using medications containing estrogen and progesterone. The appropriate method is determined based on the menstrual cycle pattern and medical history.
Why are embryos undergoing PGT frozen?
The genetic test results take time to complete after embryo biopsy. The embryo is stored via vitrification during this period, and transfer is planned after suitable results are obtained.
Does embryo freezing affect the baby’s health?
Many healthy births have occurred using embryos stored via modern vitrification. However, the individual risks of each pregnancy related to the embryo, the mother, and the pregnancy process should also be evaluated separately.
Does a frozen embryo lead to a twin pregnancy?
The likelihood of a twin pregnancy is more related to the number of embryos transferred rather than whether the embryo was frozen. Transferring multiple embryos increases the risk of multiple pregnancies.
Can frozen embryos be transported to another center?
The feasibility of transporting embryos is evaluated based on the storage center, required documents, cryological transport conditions, and regulations in force.
What happens to embryos in case of divorce or death of a spouse?
The future use, storage, or termination of embryo storage is evaluated within the scope of signed consent forms and current legal regulations. Detailed information should be provided on this matter before treatment.
Does embryo freezing guarantee pregnancy?
No. Having frozen embryos provides the option for future transfer; however, post-thaw viability, implantation, pregnancy, and live birth cannot be guaranteed.
Can the first consultation be done online?
Yes. Previous IVF and embryology reports, embryo freezing information, hormone results, and medical history can be shared beforehand.
Which documents should be sent before coming to Cyprus?
Sharing previous IVF reports, embryo development and quality information, freezing date and method, PGT results, uterine imaging, hysteroscopy reports, and hormone results facilitates the evaluation.
How can I get information about embryo freezing costs in Cyprus?
The price may vary depending on the number of embryos to be frozen, vitrification, initial storage period, annual storage renewal, PGT, and future thawing-transfer processes. Personalized cost information will be shared after reviewing the treatment scope.
