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SAFETY PRECAUTIONS FOR FROZEN EMBRYOS AND EGGS: HOW DO I KNOW THAT MY FROZEN EMBRYOS AND EGGS WILL BE SAFE?

Safety Precautions for Frozen Embryos and Eggs: How Do I Know that my Frozen Embryos and Eggs are Safe?
Medical Contribution by SGF Medical Director, Dr. Eric Widra

A MESSAGE FROM OUR MEDICAL DIRECTOR, DR. ERIC WIDRA, ABOUT SGF’S SAFETY AND QUALITY STANDARDS:

The safety of our patients and the material they entrust to our care are our highest priorities. Storing eggs, sperm, and embryos for our patients is an enormous responsibility that demands the utmost seriousness and attention. In many cases, these resources are irreplaceable, they represent the possibility of future children for our community.

Our heartfelt thoughts and sympathies go out to those affected by the apparent failure of cryopreservation in Ohio and California. These are tragic losses that will reverberate long into the future for those involved, patients and providers.

We do not have any more information on those circumstances than is in the press, however, we want to review our procedures to safeguard any cryopreserved gametes or embryos.

SGF uses liquid nitrogen tanks. These are insulated steel containers that are filled with a specified amount of liquid nitrogen. Specimens are placed in the liquid and stored at -196 degrees. Liquid nitrogen evaporates over time, giving the appearance of smoke seen in media and at rock concerts. This means that the nitrogen must be replaced periodically to ensure the stability of this temperature. Fortunately, liquid nitrogen is very predictable- we can calculate how quickly it needs to be replenished and our tanks are refilled weekly based on these calculations. The benefit of this system is its absence of technology – there is no plug, no battery to fail, the tanks simply need to be properly maintained.

In the event of a natural disaster or other catastrophe preventing access to the tanks, or to additional liquid nitrogen, the tanks will maintain their temperature for six weeks with no risk to the contents. The tanks can also be evacuated from the building in less than an hour, should that need arise.

At SGF, we also alarm our tanks for any change that could indicate a problem. Each tank must communicate daily with the alarm system. If the communication does not occur, the system alerts lab personnel in ample time to address the problem before it has any impact on the contents.

KEEPING YOUR EMBRYOS AND EGGS SAFE

Many wonder how their embryos and eggs are kept safe during the process of freezing and throughout an indefinite amount of time spent in storage. At Shady Grove Fertility, we take all appropriate preventive safety precautions for frozen embryos and eggs to preserve and protect them so that they are available to you when you decide to start or grow your family.

EXPERTISE INSIDE SGF LABORATORIES

Shady Grove Fertility, home to the largest freestanding in vitro fertilization (IVF) lab in its headquarters location in Rockville, MD, along with four other world-class laboratories in Chesterbrook, PATowson, MD, Atlanta, GA, and Fairfax, VA (opening Spring 2018), continues to meet and exceed quality standards when it comes to patient care and operations.

The laboratories are operated under the distinct leadership of nationally and internationally known Jim Graham, laboratories director, and Michael J. Tucker, BSc Comb Hons, Ph.D., FIBiol, HCLD, director of IVF and embryology laboratories. One of the most important aspects of well-run laboratories is quality control. Our protocols and the extensive training required of our laboratory staff ensure the upmost quality with zero margin for error.

Behind each piece of equipment is an embryologist. The principal functions of these specially trained staff are to verify the identification of individual patient specimens, carefully handle sperm, eggs, and embryos and to guarantee appropriate distribution of all materials.

All staff involved in the handling of sperm, eggs, and embryos must follow what is known as a Chain of Custody protocol. Chain of custody refers to the way each specimen is identified during every step of the process to ensure the integrity of each patient’s specimens. Shady Grove Fertility’s chain of custody protocol requires that two embryologists verify the identification of samples at each stage of the process to ensure, for example, that the correct sperm is paired with the correct eggs. Patients also take an active role in the protocol when they are asked to verify their identification verbally at several points.

Because of our commitment to these procedures, Shady Grove Fertility has never had an incorrect identification in our 26-year history. Making sure the right sperm ends up with the right eggs or that the right embryo is transferred to the right patient is the absolute most important thing to our Practice.

EXPERIENCE MATTERS

SGF never compromises when it comes to maintaining the highest quality and safety standards. The dedicated professionals who work within SGF’s labs partner with SGF clinicians in the completion of over 6,000 fresh in vitro fertilization (IVF) cycles a year, not including an equal number of ovulation induction and intrauterine insemination (IUI) cycles annually.

FREEZING TECHNOLOGY AND STORAGE PROTOCOLS

SGF keeps eggs and embryos stored in liquid nitrogen versus vapor. Liquid nitrogen is more expensive but maintains a more stable lower temperature for long-term storage. Each tank is regularly monitored and alarmed 24/7 with numerous and redundant fail safes in place to ensure the temperature of the environment is kept at the ideal level. In the event of a natural disaster or other catastrophe preventing access to the tanks, or to additional liquid nitrogen, the tanks will maintain their temperature for 6 weeks with no risk to the contents. The tanks can also be evacuated from the building in less than 1 hour, should that need arise.

At SGF, we also alarm our tanks for any change that could indicate a problem. Each tank must communicate daily with the alarm system. If the communication does not occur, the system alerts lab personnel in ample time to address the problem before it has any impact on the contents.  We believe that this is the safest and most effective system available and are 100% confident in our ability to care for our patients’ gametes and embryos.

STATE-OF-THE-ART TECHNOLOGY

SGF’s embryology laboratories are filled with state-of-the-art incubators, microscopes, and highly skilled technicians to ensure patient’s sensitive eggs have the best chance of growing into healthy embryos.

The equipment within the laboratories is another aspect of what really sets the Shady Grove Fertility laboratory apart from any other. At our largest laboratory in Rockville, the embryology laboratory is ISO-certified Level 1000 clean rooms. This means that the space within the laboratory is so clean, it has less than 1,000 particles per cubic meter. To put this in perspective, the environment outside has over 35,000,000 particles per cubic meter. The filtered air within the entire laboratory is replaced 30 times per hour. Air re-entering the laboratory is filtered through both HEPA filtration for particulates and carbon filters for volatile organic compounds (VOCs). This prevents nearly all contaminates from interrupting the growth of embryos.

Embryos are developed and cultured in one of SGF’s incubators, which act as artificial wombs. The environment within each incubator is carefully controlled; the temperature is set to a constant 98.6 degrees Fahrenheit, and the incubator interior is kept dark to further emulate the womb environment.

Several of the procedures within the embryology department take place under one of the laboratory’s inverted microscopes. These microscopes allow light from above the Petri dish to illuminate down through the sample into the lenses located at the bottom of the microscope. Each microscope magnifies up to 400 times and provides high resolution views of the sperm, eggs, and embryos, allowing embryologist to make precise movements when doing procedures.

SAFETY PRECAUTIONS / LAB SECURITY

Shady Grove Fertility has been a part of many nationwide protocol changes to better ensure the safety of all of the frozen eggs and embryos stored and used here. Should a known, highly-damaging event be predicted to take place, we have partners further in-land who would safely house all of our patients’ eggs and embryos should it be needed. Luckily, this hasn’t happened in our 26 year history. Our first route of protection would be at one of our four laboratories located in Towson, MD; Rockville, MD; Chesterbrook PA; or Fairfax, VA.

SCHEDULE AN APPOINTMENT


To learn more about safety precautions for frozen embryos or eggs at Shady Grove Fertility, call 1-877-411-9292 to speak with one of our New Patient Liaisons.

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