Ask Our Doctors – Archive
Our Medical Directors are outstanding physicians that you will find to be very personable and compassionate, who take care to ensure that you have the most cutting-edge fertility treatments at your disposal. This is your outlet to ask your questions to the doctors.
Good morning Dr. Sher! I posted my question yesterday but I do not see it in the forum. My apologies for a duplicate but I’d like to know:
I’m almost 42 years old (next month) and my husband is 40. We just went thru 2 IVF cycles with Igenomix Genetic Testing of day 6 blastocysts.
First cycle:
1) No DNA detected
Second cycle:
2) complex aneuploid +15 +22 Female
3) aneuploid +7 Male
Would you consider transferring any of the 3 embryos? Thank you for your time!
I would suggest the 46XY +7 embryo.
Human embryo development occurs through a process that encompasses reprogramming, sequential cleavage divisions and mitotic chromosome segregation and embryonic genome activation. Chromosomal abnormalities may arise during germ cell and/or preimplantation embryo development and represents a major cause of early pregnancy loss. About a decade ago, I and my associate, Levent Keskintepe PhD were the first to introduce full embryo karyotyping (identification of all 46 chromosomes) through preimplantation genetic sampling (PGS) as a method by which to selectively transfer only euploid embryos (i.e. those that have a full component of chromosomes) to the uterus. We subsequently reported on a 2-3-fold improvement in implantation and birth rates as well as a significant reduction in early pregnancy loss, following IVF. Since then PGS has grown dramatically in popularity such that it is now widely used throughout the world.
Many IVF programs that offer PGS services, require that all participating patients consent to all their aneuploid embryos (i.e. those with an irregular quota of chromosomes) be disposed of. However, growing evidence suggests that following embryo transfer, some aneuploid embryos will in the process of ongoing development, convert to the euploid state (i.e. “autocorrect”) and then go on to develop into chromosomally normal offspring. In fact, I am personally aware of several such cases having occurred in my own practice. So clearly, summarily discarding all aneuploid embryos as a matter of routine we are sometimes destroying some embryos that might otherwise have “autocorrected” and gone on to develop into normal offspring. Thus by discarding aneuploid embryos the possibility exists that we could be denying some women the opportunity of having a baby. This creates a major ethical and moral dilemma for those of us that provide the option of PGS to our patients. On the one hand, we strive “to avoid knowingly doing harm” (the Hippocratic Oath) and as such would prefer to avoid or minimize the risk of miscarriage and/or chromosomal birth defects and on the other hand we would not wish to deny patients with aneuploid embryos, the opportunity to have a baby.
The basis for such embryo “autocorrection” lies in the fact that some embryos found through PGS-karyotyping to harbor one or more aneuploid cells (blastomeres) will often also harbor chromosomally normal (euploid) cells (blastomeres). The coexistence of both aneuploid and euploid cells coexisting in the same embryo is referred to as “mosaicism.”
It is against this background, that an ever-increasing number of IVF practitioners, rather than summarily discard PGS-identified aneuploid embryos are now choosing to cryobanking (freeze-store) certain of them, to leave open the possibility of ultimately transferring them to the uterus. In order to best understand the complexity of the factors involved in such decision making, it is essential to understand the causes of embryo aneuploidy of which there are two varieties:
1.Meiotic aneuploidy” results from aberrations in chromosomal numerical configuration that originate in either the egg (most commonly) and/or in sperm, during preconceptual maturational division (meiosis). Since meiosis occurs in the pre-fertilized egg or in and sperm, it follows that when aneuploidy occurs due to defective meiosis, all subsequent cells in the developing embryo/blastocyst/conceptus inevitably will be aneuploid, precluding subsequent “autocorrection”. Meiotic aneuploidy will thus invariably be perpetuated in all the cells of the embryo as they replicate. It is a permanent phenomenon and is irreversible. All embryos so affected are thus fatally damaged. Most will fail to implant and those that do implant will either be lost in early pregnancy or develop into chromosomally defective offspring (e.g. Down syndrome, Edward syndrome, Turner syndrome).
2.Mitotic aneuploidy (“Mosaicism”) occurs when following fertilization and subsequent cell replication (cleavage), some cells (blastomeres) of a meiotically normal (euploid) early embryo mutate and become aneuploid. This is referred to as “mosaicism”. Thereupon, with continued subsequent cell replication (mitosis) the chromosomal make-up (karyotype) of the embryo might either comprise of predominantly aneuploid cells or euploid cells. The subsequent viability or competency of the conceptus will thereupon depend on whether euploid or aneuploid cells predominate. If in such mosaic embryos aneuploid cells predominate, the embryo will be “incompetent”). If (as is frequently the case) euploid cells prevail, the mosaic embryo will likely be “competent” and capable of propagating a normal conceptus.
Since some mitotically aneuploid (“mosaic”) embryos can, and indeed do “autocorrect’ while meiotically aneuploid embryos cannot, it follows that an ability to reliably differentiate between these two varieties of aneuploidy would potentially be of considerable clinical value. The recent introduction of a variety of preimplantation genetic screening (PGS) known as next generation gene sequencing (NGS) has vastly improved the ability to reliably and accurately karyotype embryos and thus to diagnose embryo “mosaicism”.
Most complex aneuploidies are meiotic in origin and will thus almost invariably fail to propagate viable pregnancies. The ability of mosaic embryos to autocorrect is influenced by stage of embryo development in which the diagnosis is made, which chromosomes are affected, whether the aneuploidy involves a single chromosome (simple) or involves 3 or more chromosomes (complex), and the percentage of cells that are aneuploid. Many embryos diagnosed as being mosaic prior to their development into blastocysts (in the cleaved state), subsequently undergo autocorrection to the euploid state (normal numerical chromosomal configuration) as they develop to blastocysts in the Petri dish. This is one reason why “mosaicism” is more commonly detected in early embryos than in blastocysts. Embryos with segmental mosaic aneuploidies, i.e. the addition (duplication) or subtraction (deletion), are also more likely to autocorrect. Finally, the lower the percentage of mitotically aneuploid (mosaic) cells in the blastocyst the greater the propensity for autocorrection and propagation of chromosomally normal (euploid) offspring. A blastocyst with <30% mosaicism could yield a 30% likelihood of a healthy baby rate with 10-15% miscarriage rate, while with >50% mosaicism the baby rate is roughly halved and the miscarriage rate double.
As stated, the transfer of embryos with autosomal meiotic trisomy, will invariably result in failed implantation, early miscarriage or the birth of a defective child. Those with autosomal mitotic (“mosaic”) trisomies, while having the ability to autocorrect in-utero and result in the birth of a healthy baby can, depending on the percentage of mosaic (mitotically aneuploid) cells present, the number of aneuploid chromosomes and the type of mosaicism (single or segmental) either autocorrect and propagate a normal baby, result in failed implantation, miscarry or cause a birth defect (especially with trisomies 13, 18 or 21). This is why when it comes to giving consideration to transferring trisomic embryos, suspected of being “mosaic”, I advise patients to undergo prenatal genetic testing once pregnant and to be willing to undergo termination of pregnancy in the event of the baby being affected. Conversely, when it comes to meiotic autosomal monosomy, there is almost no chance of a viable pregnancy. in most cases implantation will fail to occur and if it does, the pregnancy will with rare exceptions, miscarry. “Mosaic” (mitotically aneuploid) autosomally monosomic embryos where a chromosome is missing), can and often will “autocorrect” in-utero and propagate a viable pregnancy. It is for this reason that I readily recommend the transfer of such embryos, while still (for safety sake) advising prenatal genetic testing in the event that a pregnancy results.
Given our ability to recognize “mosaicism” through karyotyping of embryos, the question arrases as to which “mosaic” embryos are capable of auto-correcting in-utero and propagating viable pregnancies. Research suggests that that virtually no autosomal monosomy embryos will propagate viable pregnancies. Thus, the transfer of such mosaic embryos is virtually risk free. Needless to say however, in any such cases, it is essential to make full disclosure to the patient (s), and to insure the completion of a detailed informed consent agreement which would include a commitment by the patient (s) to undergo prenatal genetic testing (amniocentesis/CVS) aimed at excluding a chromosomal defect in the developing baby and/or a willingness to terminate the pregnancy should a serious birth defect be diagnosed.
I strongly recommend that you visit http://www.SherIVF.com. Then go to my Blog and access the “search bar”. Type in the titles of any/all of the articles listed below, one by one. “Click” and you will immediately be taken to those you select. Please also take the time to post any questions or comments with the full expectation that I will (as always) respond promptly.
•A Fresh Look at the Indications for IVF
•The IVF Journey: The importance of “Planning the Trip” Before Taking the Ride”
•Controlled Ovarian Stimulation (COS) for IVF: Selecting the ideal protocol
•IVF: Factors Affecting Egg/Embryo “competency” during Controlled Ovarian Stimulation(COS)
•The Fundamental Requirements For Achieving Optimal IVF Success
•Use of GnRH Antagonists (Ganirelix/Cetrotide/Orgalutron) in IVF-Ovarian Stimulation Protocols.
•Anti Mullerian Hormone (AMH) Measurement to Assess Ovarian Reserve and Design the Optimal Protocol for Controlled Ovarian Stimulation (COS) in IVF.
•Controlled Ovarian Stimulation (COS) in Older women and Women who have Diminished Ovarian Reserve (DOR): A Rational Basis for Selecting a Stimulation Protocol
•Optimizing Response to Ovarian Stimulation in Women with Compromised Ovarian Response to Ovarian Stimulation: A Personal Approach.
•Hereditary Clotting Defects (Thrombophilia)
•Blastocyst Embryo Transfers done 5-6 Days Following Fertilization are Fast Replacing Earlier day 2-3 Transfers of Cleaved Embryos.
•Embryo Transfer Procedure: The “Holy Grail in IVF.
•Timing of ET: Transferring Blastocysts on Day 5-6 Post-Fertilization, Rather Than on Day 2-3 as Cleaved Embryos.
•IVF: Approach to Selecting the Best Embryos for Transfer to the Uterus.
•Fresh versus Frozen Embryo Transfers (FET) Enhance IVF Outcome
•Frozen Embryo Transfer (FET): A Rational Approach to Hormonal Preparation and How new Methodology is Impacting IVF.
•Staggered IVF
•Staggered IVF with PGS- Selection of “Competent” Embryos Greatly Enhances the Utility & Efficiency of IVF.
•Staggered IVF: An Excellent Option When. Advancing Age and Diminished Ovarian Reserve (DOR) Reduces IVF Success Rate
•Embryo Banking/Stockpiling: Slows the “Biological Clock” and offers a Selective Alternative to IVF-Egg Donation
•Preimplantation Genetic Testing (PGS) in IVF: It should be Used Selectively and NOT be Routine.
•IVF: Selecting the Best Quality Embryos to Transfer
•Preimplantation Genetic Sampling (PGS) Using: Next Generation Gene Sequencing (NGS): Method of Choice.
•PGS and Assessment of Egg/Embryo “competency”: How Method, Timing and Methodology Could Affect Reliability
•IVF outcome: How Does Advancing Age and Diminished Ovarian Reserve (DOR) Affect Egg/Embryo “Competency” and How Should the Problem be addressed.
___________________________________________________
ADDENDUM: PLEASE READ!!
INTRODUCING SHER FERTILITY SOLUTIONS (SFS)
Founded in April 2019, Sher Fertility Solutions (SFS) offers online (Skype/FaceTime) consultations to patients from > 40 different countries. All consultations are followed by a detailed written report presenting my personal recommendations for treatment of what often constitute complex Reproductive Issues.
If you wish to schedule an online consultation with me, please contact my assistant (Patti Converse) by phone (800-780-7437/702-533-2691), email (concierge@SherIVF.com) or, enroll online on then home-page of my website (www.SherIVF.com).
PLEASE SPREAD THE WORD ABOUT SFS!
Geoff Sher
Hi Dr. Sher,
I experienced a miscarriage on 05/29 and have since had positive hpt on 06/30. First beta on 7/8 was 6292 and 2nd beta on 7/12 was 13,587. Ultrasound was also performed on 7/12 which showed a gestational sac and yolk sac not no fetal pole or heartbeat. I measured at 5 weeks 2 days. Should I be concerned that my hcg is taking longer to double this early in the pregnancy?
I forgot to add that my progesterone went from 32 to 28 between draws. Thank you Dr Sher!
I forgot to add that my progesterone went from 32 to 28 between draws also. Thank you Dr Sher!
Too early!
Repeat the US in 10-14 days.
Geoff Sher
I transferred a 5AA euploid embryo on July 1 and my beta was 995 mIU/mL on July 12 (day 12 post transfer). Any reason to be concerned that this is too high? Could it be indicative of any problem? Thanks in advance.
None!
Geoff Sher
Hello Dr Sher,
I have a question about embryo grading. I have 3 embryos graded 4BB, 5BB and 6BB, all euploid. Which one do you think has the highest chance to implant and become a baby? Thank you!
In my opinion, any/all of the above should have an equally good chance.
Geoff Sher
Dr. Sher — I am 39 and my husband is 40. In 2016, when I was 33, we did an embryo freeze cycle because we weren’t ready to have kids. We got eight blastocysts. We recently had them thawed and genetically tested — in part because we want a girl. Three were normal (two female, one male) and five were mosaic. We transferred the best-graded normal female (Day 5 3BB) and it resulted in a biochemical. We then transferred the other normal female (Day 6 6CB) and it did not implant. We have one normal male left (Day 5 6CB), but because we want only one child, we are planning to transfer a mosaic female. We have two females with low-level whole-chromosome mosaicism:
1. Day 5 6BB — monosomy 15
2. Day 5 6CB — monosomy 1
Which of these would you transfer first? #1 has a riskier chromosome but a better morphological grade. And what do you think is the likelihood of success with each?
Thank you!
Either or both. I would probably transfer 2.
The bigger question is why 2 euploid embryos failed to implant. In my opinion, an implantation dysfunction should be evaluated for, prior to doing any more ET’s.
Implantation dysfunction is unfortunately often overlooked as an important cause of IVF failure. In the pursuit of optimizing outcome with IVF, the clinician has a profound responsibility to meticulously assess and address this important issue if IVF success is to be optimized. This is especially relevant in cases of “unexplained IVF failure, Recurrent Pregnancy Loss (RPL) and in women suspected of having underlying anatomical and immunologic factors. Doing so will not only maximize the chance of a viable pregnancy but enhancing placentation, will at the same time promote the noble objective of optimizing the quality of life after birth.”
IVF success rates have been improving over the last decade. The average live birth rate per embryo transfer in the U.S.A for women under 40y using their own eggs , is currently better than 1:3 women. However, there is still a wide variation from program to program for IVF live birth rates, ranging from 20% to near 50%. Based upon these statistics, the majority of women undergoing IVF in the United States require two or more attempts to have a baby. IVF practitioners in the United States commonly attribute the wide dichotomy in IVF success rates to variability in expertise of the various embryology laboratories. This is far from accurate. In fact, other factors such as wide variations in patient selection and the failure to develop individualized protocols for ovarian stimulation or to address those infective, anatomical and immunologic factors that influence embryo implantation are at least equally important.
About 80% of IVF failures are due to “embryo incompetency” that is largely due to an irregular quota of chromosomes (aneuploidy) which is usually related to advancing age of the woman and is further influenced by other factors such as the protocol selected for ovarian stimulation, diminished ovarian reserve (DOR)m and severe male factor infertility. However in about 20% of dysfunctional cases embryo implantation is the cause of failure.
Anatomical Endo-uterine Lesions: This blog article will focus on implantation dysfunction and IVF failure due to:
•Anatomical abnormalities in the uterine cavity (e.g. scarring, polyps and encroaching fibroid tumors)
•A thin endometrial lining
•Immunologic rejection of the embryos
Several studies performed both in the United States and abroad have confirmed that a dye X-Ray or hysterosalpingogram (HSG) will fail to identify small endouterine surface lesions in >20% of cases. This is significant because even small uterine lesions have the potential to adversely affect implantation. Hysteroscopy is the traditional method for evaluating the integrity of the uterine cavity in preparation for IVF. It also permits resection of most uterine surface lesions, such as submucous uterine fibroids (myomas), intrauterine adhesions and endometrial or placental polyps. All of these can interfere with implantation by producing a local “inflammatory- type” response similar in nature to that which is caused by an intrauterine contraceptive device. Hysterosonography (syn; HSN/ saline ultrasound examination) and hysteroscopy have all but supplanted HSG to assess the uterine cavity in preparation for IVF. HSN which is less invasive and far less expensive than is than hysteroscopy involves a small amount of a sterile saline solution is injected into the uterine cavity, whereupon a vaginal ultrasound examination is performed to assess the contour of the uterine cavity.
Endometrial Thickness: As far back as in 1989 I first reported on the finding that ultrasound assessment of the late proliferative phase endometrium following ovarian stimulation in preparation for IVF, permits better identification of those candidates who are least likely to conceive. We noted that the ideal thickness of the endometrium at the time of ovulation or egg retrieval is >9 mm and that a thickness of less than 8 mm bodes poorly for a successful outcome following IVF.
Then in 1993, I demonstrated that sildenafil (Viagra) introduced into the vagina prior to hCG administration can improve endometrial growth in many women with poor endometrial development. Viagra’s mechanism of action is improvement in uterine blood flow with improved estrogen delivery…thereby enhancing endometrial development.
Immunologic factors: These also play a role in IVF failure. Some women develop antibodies to components of their own cells. This “autoimmune” process involves the production of antiphospholipid, antithyroid, and/or anti-ovarian antibodies – all of which may be associated with activation of Natural Killer (NK) cells in the uterine lining. Activated NK cells (NKa) release certain cytokines (TH-I) that if present in excess, often damage the trophoblast (the embryo’s root system) resulting in immunologic implantation dysfunction (IID). This can manifest as “infertility” or as early miscarriages). In other cases (though less common), the problem is due to “alloimmune” dysfunction. Here the genetic contribution by the male partner renders the embryo “too similar” to the mother. This in turn activates NK cells leading to implantation dysfunction. These IID’s are treated using combinations of medications such as heparin, Clexane, Lovenox, corticosteroids and intralipid (IL).
I strongly recommend that you visit http://www.SherIVF.com. Then go to my Blog and access the “search bar”. Type in the titles of any/all of the articles listed below, one by one. “Click” and you will immediately be taken to those you select. Please also take the time to post any questions or comments with the full expectation that I will (as always) respond promptly.
•A Fresh Look at the Indications for IVF
•The IVF Journey: The importance of “Planning the Trip” Before Taking the Ride”
•Controlled Ovarian Stimulation (COS) for IVF: Selecting the ideal protocol
•IVF: Factors Affecting Egg/Embryo “competency” during Controlled Ovarian Stimulation(COS)
•The Fundamental Requirements For Achieving Optimal IVF Success
•Use of GnRH Antagonists (Ganirelix/Cetrotide/Orgalutron) in IVF-Ovarian Stimulation Protocols.
•Human Growth Hormone Administration in IVF: Does it Enhances Egg/Embryo Quality and Outcome?
•IVF and the use of Supplementary Human Growth Hormone (HGH) : Is it Worth Trying and who needs it?
•The BCP: Does Launching a Cycle of Controlled Ovarian Stimulation (COS). Coming off the BCP Compromise Response?
•Blastocyst Embryo Transfers Should be the Standard of Care in IVF
•Anti Mullerian Hormone (AMH) Measurement to Assess Ovarian Reserve and Design the Optimal Protocol for Controlled Ovarian Stimulation (COS) in IVF.
•IVF: Approach to Selecting the Best Embryos for Transfer to the Uterus.
•Fresh versus Frozen Embryo Transfers (FET) Enhance IVF Outcome
•Frozen Embryo Transfer (FET): A Rational Approach to Hormonal Preparation and How new Methodology is Impacting IVF.
•Genetically Testing Embryos for IVF
•Staggered IVF
•Staggered IVF with PGS- Selection of “Competent” Embryos Greatly Enhances the Utility & Efficiency of IVF.
•Preimplantation Genetic Testing (PGS) in IVF: It should be Used Selectively and NOT be Routine.
•IVF: Selecting the Best Quality Embryos to Transfer
•Preimplantation Genetic Sampling (PGS) Using: Next Generation Gene Sequencing (NGS): Method of Choice.
•PGS in IVF: Are Some Chromosomally abnormal Embryos Capable of Resulting in Normal Babies and Being Wrongly Discarded?
•PGS and Assessment of Egg/Embryo “competency”: How Method, Timing and Methodology Could Affect Reliability
•Endometrial Receptivity Array (ERA): Is There an actual “There, There”?
•IVF Failure and Implantation Dysfunction:
•Diagnosing and Treating Immunologic Implantation Dysfunction (IID)
•The Role of Immunologic Implantation Dysfunction (IID) & Infertility (IID):PART 1-Background
•Immunologic Implantation Dysfunction (IID) & Infertility (IID):PART 2- Making a Diagnosis
•Immunologic Dysfunction (IID) & Infertility (IID):PART 3-Treatment
•Thyroid autoantibodies and Immunologic Implantation Dysfunction (IID)
•Immunologic Implantation Dysfunction: Importance of Meticulous Evaluation and Strategic Management:(Case Report
•Intralipid and IVIG therapy: Understanding the Basis for its use in the Treatment of Immunologic Implantation Dysfunction (IID)
•Intralipid (IL) Administration in IVF: It’s Composition; How it Works; Administration; Side-effects; Reactions and Precautions
•Natural Killer Cell Activation (NKa) and Immunologic Implantation Dysfunction in IVF: The Controversy!
•Endometrial Thickness, Uterine Pathology and Immunologic Factors
•Vaginally Administered Viagra is Often a Highly Effective Treatment to Help Thicken a Thin Uterine Lining
•A Thin Uterine Lining: Vaginal Viagra is Often the Answer (update)
•Cervical Ureaplasma Urealyticum Infection: How can it Affect IUI/IVF Outcome?
•The Role of Nutritional Supplements in Preparing for IVF
•The Basic Infertility Work-Up
•Defining and Addressing an Abnormal Luteal Phase
•Male Factor Infertility
•Routine Fertilization by Intracytoplasmic Sperm Injection (ICSI): An Argument in Favor
•Hormonal Treatment of Male Infertility
•Hormonal Treatment of Male Infertility
•Antisperm Antibodies, Infertility and the Role of IVF with Intracytoplasmic Sperm Injection (ICSI)
•Endometriosis and Infertily
•Endometriosis and Immunologic Implantation Dysfunction (IID) and IVF
•Endometriosis and Infertility: Why IVF Rather than IUI or Surgery Should be the Treatment of Choice.
•Endometriosis and Infertility: The Influence of Age and Severity on Treatment Options
•Early -Endometriosis-related Infertility: Ovulation Induction (with or without Intrauterine Insemination) and Reproductive Surgery Versus IVF
•Deciding Between Intrauterine Insemination (IUI) and In Vitro Fertilization (IVF).
•Intrauterine Insemination (IUI): Who Needs it & who Does Not: Pro’s & Con’s!IUI-Reflecting upon its Use and Misuse: Time for a Serious “Reality Check
•Mode of Action, Indications, Benefits, Limitations and Contraindications for its ue
•Clomiphene Induction of Ovulation: Its Use and Misuse!
ADDENDUM: PLEASE READ!!
INTRODUCING SHER FERTILITY SOLUTIONS (SFS)
Founded in April 2019, Sher Fertility Solutions (SFS) offers online (Skype/FaceTime) consultations to patients from > 40 different countries. All consultations are followed by a detailed written report presenting my personal recommendations for treatment of what often constitute complex Reproductive Issues.
If you wish to schedule an online consultation with me, please contact my assistant (Patti Converse) by phone (800-780-7437/702-533-2691), email (concierge@SherIVF.com) or, enroll online on then home-page of my website (www.SherIVF.com).
PLEASE SPREAD THE WORD ABOUT SFS!
Geoff Sher