My IVF Cycle Failed – What Went Wrong? Question #9: What About Egg Retrieval and Its Influence on IVF Outcome?
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Even though the egg is the largest cell in the body (about the size of a grain of sand), and itself is too small to be clearly seen in the follicular flushings without a microscope, it is usually embedded in the collection of cells known as the “cumulus-granulosa complex” which indeed can often be identified in the follicular fluid with the naked eye.
A mature and fully “competent” mature egg is one that upon fertilization (embryo) and reaching a receptive uterus is capable of resulting in a normal pregnancy. Such an egg will have a normal size, be of rounded shape, have a well defined but thinnish outer envelopment (zona pellucida) and house a well-defined single polar body (PB-1) below its outer surface. Also, the cytoplasm (ooplasma) should be clear, non-granular, and be free of pools of fluid (vacuoles). This having been said, it is not possible to reliably identify a “competent” egg by visual/microscopic evaluation only.
As I have often mentioned on this blog and elsewhere, it is predominantly the chromosomal integrity of the egg, rather than the sperm, that will determine embryo competence. Most human eggs start off with 46 chromosomes. Soon after the spontaneous LH surge or an hCG “trigger” shot, it enters into maturational division (meiosis). The purpose of meiosis is to reduce the number of chromosomes from 46 to 23 over a period of 24-32 hours. At best, 40% of eggs will end up with precisely 23 chromosomes (“euploid”). This percentage declines rapidly with advancing age, such that by the mid-forties, less than 10% will be euploid and thus capable of propagating a competent embryo.
However, the fact is that after meiosis, the greater majority of eggs end up being “aneuploid” (i.e having more or less than 23 chromosomes). In such cases, the resulting embryos will invariably also be aneuploid and thus be “incompetent” (incapable of developing into a normal baby).
While egg aneuploidy is the main cause of embryo incompetence, it is not the only factor. Sometimes an abnormal sperm can cause embryo aneuploidy. Similarly, epigenetic and metabolic factors can also play a role (albeit a much lesser one).
Evaluation of the egg includes one or more of the following:
- Assessment of its overall appearance: Shape color, size, consistency, the absence of vacuoles, thickness of the zona pellucida.
- Assessment of the 1st polar body (PB-1): The presence of a single PB-1 indicates that the egg has gone through initial maturational development (meiosis-1), in an attempt to halve its chromosome number (from 46 to 23) so as to prepare for fertilization. The detection of a single PB-1 thus suggests that such an egg is “mature” or “dysmature” (M2). The absence of a PB-1 suggests that the egg is chromosomally “incompetent” (aneuploid) and thus incapable of propagating a competent embryo. Detection of more than one PB (polyploidy) likewise points to aneuploidy and egg “incompetence.”
- Chromosomal analysis (karyotyping): This involves chromosomal analysis of the 1st polar body. In the past, the standard method used was “fluorescence in-situ hybridization” (FISH). However, karyotyping by this method was highly inaccurate. Proudly, it was largely through research conducted at SIRM (published in several medical journals) that Comparative Genomic Hybridization (CGH) was introduced to fully karyotype the PB-1 of the egg. We have reported widely on the fact that an embryo derived through fertilization of a euploid egg will, in more than 80% of cases, turn out to be “competent” (euploid). Such eggs will develop into a normal baby more than 70% of the time. CGH analysis of the egg has decided advantages when it comes to selectively cryobanking eggs for the purpose of female fertility preservation (FP). However, when it comes to selecting competent embryos for transfer it is preferable to fully karyotype the embryo (rather than the egg). The reason is that such an evaluation takes the contribution of both the egg and the sperm into consideration.
Immediately following the egg retrieval, the doctor will start a series of medications, including antibiotics to prevent infection, hormonal supplements to promote implantation and sometimes pain killers. The patient will be asked to refrain from sexual intercourse for a period of time, and avoid submerging in water (such as swimming or taking a bath). The patient will also be advised to use a peripad, rather than tampons, for vaginal bleeding and will be advised to be on the lookout for:
- An elevated body temperature (>37C or 101F)
- Abdominal pain or swelling
- Persistent nausea or vomiting that doesn’t subside
- Heavy vaginal bleeding (soaking of a pad in less than 1hr.)
- Pain or difficulty in passing urine
- Lightheadedness or fainting spells
Shortly (a few days) after ER, the fertilized eggs develop into embryos. The woman and her partner are kept abreast of the embryos’ progress all along the way. They will likely be anxious. However, research suggests that lower levels of anxiety favor embryo implantation success. It thus behooves the couple to try and relax before the day of embryo transfer. They should socialize with friends, take outings, etc., if this will help distract them from the stress of the situation. Whatever it takes to make them feel happy and calm before the final phase of their IVF cycle…the embryo transfer!
16 Responses to “My IVF Cycle Failed – What Went Wrong? Question #9: What About Egg Retrieval and Its Influence on IVF Outcome?”
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Dear Dr. Sher,
I am 39 yrs of age with premature ovarian failure (diagnosed at age 14 after 2 years of natural menstrual cycle). I just went through my first IVF cycle with donor egg (Tranfer on 6/13)–my first beta was yesterday (6/24) and measured 1.2. Since I was present at my clinic, I was told my test was negative via my ER's nurse coordinator,in person. We of course had initial questions, which she said I should address to my ER with whom we are meeting on 6/30. She suggested I cease my meds, even though she is scheduling me for a repeat test on 6/30. I have not heard anything directly from my ER a day later, and feel uncomfortable about this. We are left to question whether I should indeed go off my meds with the upcoming repeat test (even though the possibility of a pregnancy here is basically null). More importantly, after the investment we have made (emotionally, and financially) shouldn't that warrant direct contact from my ER? Furthermore, we have read that any detection of HCG in case of a donor egg, may be a good thing. I would appreciate any insight you could provide, however brief. Thank you!
Lost in NY
Dr. Sher,
On 6/20 I had one CGH normal morula transferred and I am already pretty sure that it didn't work. Out of 17 eggs retrieved, 13 fertilized and only 5 made it to day 5 and only one of those were normal. I did have a few blasts but they were labeled "complex abnormal." It is pretty scary as I had one perfect hatching blast 5AA but it had 5 different trisomies! I am very upset and confused and I was hoping you would have some suggestions for me as I am worried that I will never be a mom. I am 30 years old and I have been pregnant 4 times in the past 18 months; 2 natural, 1 from an IUI, and 1 from an IVF. The first ended prior to 6 weeks, the second right before nine weeks (no abnormalities found when tissue was tested), the third was right before nine weeks and the last was prior to 6 weeks. With the ones at nine weeks we had a healthy heartbeat with both. My husband and I have both been through testing and everything is coming back normal…even karyotyping. After my fourth loss they did find that I had a septate uterus but I had that resected and it was completely gone at follow up a month later. At that time I was told that my endometrial lining looked great and there was no significant scarring.
One issue that I do have is a thin lining. I am always around a 7.5 except for my first IVf I was at a 6.5. With this last IVF I used vaginal Viagra 25mg 4xday and my final measurement was 7.8 and 8.4 (as they couldn't get a good angle.) Do you think my lining is the cause of all of my losses and my failed CGH cycle? I guess that I am just looking for some hope. I know that compromised endometrial linings can lead to implantation failure, but would it cause me to miscarry every pregnancy? I guess I would think that I would have more negative cycles than positive ones with a poor lining. I have been able to get pregnant on every other try so at least I know that it is even possible.
I really appreciate any insight that you may have as I know how much experience and knowledge you have with array-CGH.
Regards,
Krystyn
Dear Ariagirl!
I absolutely agree with you. I have seen cases where even a negative beta's go positive in 2 days. This is especially the case where egg donation is done and where any amount of hCG in the blood could only come from the embryo implanting.
I would respectfully disagree with the nurse and if it were up tome I would continue meds until the 2nd beta is done (2 days after the 1st.
Good luck!
Geoff Sher
Hi Krystyn,
I truly believe that there is an implantation defect in your case. Indeed, a lining of <8.00mm at the time of hCG (or at the time of PIO initiation)often will result in implantation failure. In fact I do not do an ET unless the lining measures at least 8mm >9.00mm being optimal). Another concern is that there may be an immunologic implantation dysfunction (see elsewhere on this site for more information).
Perhaps we should talk sometime soon. Call 800-780-7437 for a free medical telephone consultation with me.
Good luck and G-d bless!
Thanks so much for your response Dr. Sher! I have always been afraid that an implantation defect has been my issue. I did try vaginal Viagra with no success. Are there any other medications that you recommend or a protocol that can help with my lining? As I said before, I really don't have a great response to Estrace. I do take Crinone and PIO injections after retrieval but I am not sure if the lining thickens any afterwards, as it has not been measured at the time of transfer.
In regards to the immunological aspect of implantation, I have been doing IVIG for about 1 year and I am put on Dexamethasone, baby ASA, and Lovenox for each cycle just in case. I have been checked for just about everything; ANA, ATA, APA, and NKa and everything is coming back normal.
I have a phone consultation with you a week from Thursday. I am sorry that I am asking you all of these questions now but I am trying to ease my mind as I feel that I will never be successful with IVF as failure of this cycle was confirmed today. I guess that I am looking for a glimmer of hope to get me through this next week.
Thanks again,
Krystyn
I understand. All I can say is that I need to review all the immune tests done, thoroughly. Have you and your husband been matched for DQa/HLA gene similarities (alloimmune similarities?)
In my opinion, estrace orally is not ideal.
Until we talk then….
Geoff Sher
Hi Dr,
I had my first failed IUI last month. I was on following hormonal injection during my IUI treatment starting from 5th day: Inj IVF-M 150 IU IM for 4 days, Inj IVFM 150 IU IM + Inj Ouvurelix 0.25 mg for 3 days, then Inj IVF-C 10,000 for 1 day and then finally on 13th day, IUI was done. 2 eggs were seen. Unfortunately IUI failed and the possible reason given was due to high LH level (11.08) on day 5. Now I have been asked to reduce LH level using Lupron Depot ijection and redo IUI. I have also been prescribed Folic acid tablets. I suffer from PCO. My husband sperm count is fine. I am wondering whether my doctor is going in right direction? Do you forsee any problems with such injections in future? if not, kindly provide some pointers so that I can speak with my doctor.Thanks.
Unfortunately, I cannot comment on this protocol without total knowledge of your specifics and access to your medical records.
Geoff Sher
im going to appiontment in clinic i think ill be too nervous for egg retrival and embyro transfer what if im too nervous for it what if im too nervous during the whole pregnancy if i do get pregnant
This is indeed a trying and stressful time for you. Hopefully it will soon end with you conceiving. and perhaps you are pregnant you will probably become more satisfied…fulfilled and relaxed…..Lets hope so!
G-d Bless!
Geoff Sher
doctor.i have some questions
1.Is the Egg retrieval done through laparascopy?or not?
2.also if the doctor retrieved 20 eggs and if 15 fertilized then is PGD gonna be done on all of the or some of them?
thanks alot
No the ER is done through transvaginal ultrasound guided needle aspiration. Only those fertilized eggs that reach at least 5 cells by day 3 are subjected to PGD or those that reach blastocyst by day 5-6.
Geoff Sher
Dear Dr sher
I am having the fifth year of my mairrage and suffering from the problem of infertility. My husbands sperm count is ok. Last year my left ovary was drilled due to being polysestic through leproscopy. But despite that I got no result. Now my consultant is asking for IUI or test tube procedure due to my FSH level of 11.08. Dear doctor whether this level of FSH causes infertility?
An FSH of above 9.0 could be an indication that your ovarian reserve is diminishing. I would do an AMH as well and if this shows the same, I would go straight to IVF if I were you.
Good luck!
Geoff Sher
800-780-7437
Dr Sher,
Let me know you I had the Test of FSH on the second of my periods on recomendation of my consultant. But I have come to know that third day of periods is mostly recomended. Does it matter?
Not really, provided the concurrently performed E2 was <70pg/ml.
Geoff Sher