2019: Pre-implantation Genetic Testing Frozen/Thawed embryo transfers pregnancy rates (positive preg. test) = 81%. Ongoing pregnancies or live births = 64% 2019: Above include 2 twin pregnancies from the only 2 transfers with 2 embryos 2018: Pre-implantation Genetic Testing Frozen/Thawed embryo transfers pregnancy rates (positive preg. test) = 70%Normal embryos are called euploid and contain 46XX if female or 46XY if male. Abnormal embryos, called aneuploid, would not have this normal complement of chromosomes. Any of the 23 human chromosomes can be abnormal in different ways and have one too many (called a trisomy) or one too few (called a monosomy). polaris ranger 800 check engine codes What trimester do you get more energy? In the second trimester, which begins at week 13, many women get a fresh surge of energy. This is a great time to tackle those important before-baby-arrives chores, because as you enter the third trimester, which begins at week 28, that extreme exhaustion returns. john deere 4450 problems 2019: Pre-implantation Genetic Testing Frozen/Thawed embryo transfers pregnancy rates (positive preg. test) = 81%. Ongoing pregnancies or live births = 64% 2019: Above include 2 twin pregnancies from the only 2 transfers with 2 embryos 2018: Pre-implantation Genetic Testing Frozen/Thawed embryo transfers pregnancy rates (positive preg. test) = 70%What is PGT-A Testing? PGT-A is an embryonic procedure done during the IVF Process that checks the number of chromosomes for each embryo prior to the embryo transfer portion of IVF treatment.. A normal embryo contains 23 pairs of chromosomes, for a total of 46 chromosomes (euploid). 23 chromosomes come from the sperm and 23 from the egg. conn21 Embryos are frozen immediately after being biopsied and the results can take up to 10 days depending on your clinic or lab. The embryo is considered to be euploid if the results of a biopsy show that the cells in the sample have the 23 pairs of chromosomes with no abnormalities . Euploid embryos have a very high implantation rate, as high as 75-80%This study analyzed chromosomal abnormalities and clinical outcomes in 591 aneuploid mosaic and 3071 euploid embryos from multiple retrospective cohorts as well as from the current authors’ unpublished retrospective cohort. Through meta-analysis, it was found that single aneuploid mosaicism reduced implantation and clinical pregnancy rates.We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5. boy scout camps for sale in californiaKey Words: Assisted reproduction, transfer, blastocyst, euploid, IVF. Discuss: You can discuss this article with its authors and other readers at ...That said, euploid Day 6 embryos clearly still have value, and, as you can see below, lead to live births. Next, if someone is deciding between two euploid embryos that reach a stage at a similar time (meaning both became blastocysts on Day 5 or both on Day 6), morphological parameters are likely helpful in breaking the tie of which is better. nurse blake youtube A total of 1610 embryos were biopsied, 1545 had known ploidy status (641 were euploid). The overall euploid rate was 39.8%. Baseline characteristics of the study population by training and validation cohort are shown in Table 1.We observed a significant difference between the two cohorts of uneven cleavage embryos.May 1, 2016 · Result(s) We analyzed 22,599 day-3 embryos and 15,112 day-5 embryos. In women aged 27 to 35 years, the median proportion of euploid embryos in each cycle remained constant at ∼35% in day-3 biopsies and ∼55% in day-5 biopsies, but it decreased rapidly after age 35. Hi all, I just finished my first IVF cycle and elected to have my blasts biopsied and tested using CCS. I'm now in the 2ww to get results back from the…For instance, it is not uncommon to have 15 eggs collected, 10 of which become embryos. The average rates of egg development are as follows: Maturity – 80% of all retrieved … gloomhaven road event 12 Many people assume that if they have 10 eggs collected, that’s 10 embryos, which means 1 fresh transfer and 9 in the freezer. Unfortunately, that can be far from true and there are multiple steps along the way that results can take an unexpected turn. This "numbers game" is what is known as IVF attrition.We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5. If the embryo successfully attaches to the uterus, then you have a pregnancy. The normal timeline for embryo development is after two days of cultivation the embryo should have … monkey getting hit Twice as many 40-plus women as teenagers are having babies. 20 January 2023 ...PGS, using high-resolution next-generation sequencing, analyzes which embryos are healthy and which are not by examining the outer layer of their cells. Euploid embryos Embryologists are looking for euploid embryos; chromosomally normal with 46 chromosomes in 23 pairs. alton bay calendar of events Two embryos are not always better than one! In fact, the BEST trial in 2013 showed that the likelihood of success with a single embryo transfer is equivalent to that of a double …Transferring 3 embryos lowers birth rate. The 124,148 IVF cycles analyzed by researchers at the University of Bristol, resulted in 33,514 babies being born. In women under the age of 40, it was found that the live birth rate was higher on transferring two embryos as compared to one. However, the live birth rate was lower when they transferred ...2020. 7. 1. ... With PGT-A procedure, euploid embryos can be selected to transfer, ... We have used this new method to perform blastocyst biopsy during the ... penny hardaway shoes Jun 29, 2019 · 41-42 years: 26.8% euploid. 43-44 years: 24% euploid. They also found that the chance of getting a complex abnormal embryo increased with age. Demko et al. (2016) looked at over 18,000 Day 5 embryo biopsies (using the older SNP technology) and reported the chances of an embryo being euploid (based on age): ≤ 35: 61%. 2020. 7. 5. ... The presence of more chromosomally normal (euploid) embryos ... How many oocytes do we need to maximize cumulative live birth rates after ... best caulk for sill plate We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5. Mosaic embryos have the potential to implant and develop into healthy babies. From centers worldwide, there is an increasing number of reports of live births following the transfer of mosaic embryos (Greco et al. 2015; Fragouli et al. 2017; Munné et al., 2017; Spinella et al., 2018; Victor et al., 2019).However, in most of these studies, there is a lack of information about the follow-up ...False-negative diagnoses were established after transfers of supposedly euploid embryos that led to miscarriages with aneuploid karyotypes (Maxwell et al., 2016). False-positive diagnoses of up to 50-80% were first reported following multiple trophectoderm biopsies of the same embryos in the same and different laboratories, ...Day 0️⃣ IVF. In the embryology lab we start at Day 0, which makes it easier to count the days of embryo development. Day 0 is the day of the: 👉egg retrieval. 👉semen collection (or …A 2022 update. Evidence up to 2022 indicates that a single PGT-A biopsy is highly concordant with the rest of the embryo when aneuploid or euploid, but not when mosaic or segmental. A PGT-A biopsy takes only 5-10 cells from an embryo that’s potentially hundreds of cells and it’s not clear if this small sample is truly representative of the ...Normal embryos are called euploid and contain 46XX if female or 46XY if male. Abnormal embryos, called aneuploid, would not have this normal complement of chromosomes. Any of the 23 human chromosomes can be abnormal in different ways and have one too many (called a trisomy) or one too few (called a monosomy). radgrid sorting on header click October 29, 2021 danna ContentsWhy does IVF fail with good embryos What causes failed IVF cycle Are you more fertile after failed IVF cycle How soon can you IVF after failed cycle What are... Skip to content. Why Did My Ivf Cycle Fail. Posted on October 29, 2021 By danna Contents.If they've got a few embryos, they might test them all to help pick the one with the best chance at becoming a pregnancy. However, the classic Hamletian dilemma, 'to PGS or not to PGS', is not. For some women going through IVF, the choice of having PGS performed on their embryos is a no-brainer. If they've got a few embryos, they might ...Most studies indicate that an optimal LBR can be obtained during fresh cycles with 8–18 oocytes retrieved. 5 7 13 16 A study of 65 868 singleton births after fresh embryo transfer (ET) has shown that an excessive ovarian response, that is, when >20 oocytes are retrieved for IVF, is associated with an increased risk of preterm birth (PTB) and low... tmnt fanfiction raph gets hurt I had similar results.. 5 euploid embryos after 1st retrieval.. Our first natural FET failed... For the 2nd one, we plan to do a medicated FET.. We just did a mock cycle along with hysteroscopy and Receiptiva DX test.. A polyp and Endometritis were detected.. Will go for the 2nd cycle now once I get my period.. CD 55 and counting..In a study analyzing 4,515 patients with up to three consecutive Single Embryo Transfers (SET) of chromosomally normal, or euploid, embryos, 94.9% achieved a pregnancy. Implantation, or pregnancy, rates were highest for the first transfer for a euploid embryo: it stood at 69.4%.What is PGT-A Testing? PGT-A is an embryonic procedure done during the IVF Process that checks the number of chromosomes for each embryo prior to the embryo transfer portion of IVF treatment.. A normal embryo contains 23 pairs of chromosomes, for a total of 46 chromosomes (euploid). 23 chromosomes come from the sperm and 23 from the egg. beauty slaons near me Most people are surprised to learn that needles are an inescapable part of the IVF process due to necessary daily injections and frequent blood draws. In this video, Fertility Nurse & Consultant ...Result(s): Of euploid embryos analyzed by aCGH resulting in miscarriage, 31.6% were mosaic and 5.2% were polyploid by NGS. The rate of chromosomal abnormalities was significantly higher in embryos resulting in miscarriage (36.8%) than in …We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5. 16 x 24 frames When a woman undergoes three or more failed IVF attempts (with good quality embryos) or if implantation doesn't happen even after transferring more than 10 'good-looking' embryos over many cycles, then the woman is said to have "implantation failure". When an embryo fails to implant, there can only be two logical reasons: the embryo ...Patients who have been previously surgically diagnosed with endometriosis and have embryos predicted to be euploid after in vitro fertilization will be divided into 2 ...I know this topic has been discussed a lot, and I have read about the pros and cons and arguments on both sides. I just thought phrasing the question a little differently might geEmbryos graded as BB (3BB, 4BB, 5BB, 6BB) still have a good chance of success at 50% for pregnancy and 42.3% for live birth. Can a 5AA embryo be a girl? That means you only have a 28% chance for a girl. Boy embryos develop quicker in the early stages, which is why there’s such a drastic difference between the two. ibew 1249 job board 29 when did IVF (husband has low sperm count) I had 18 eggs retrieved, 15 went through fertilization, 6 embryos made it to day 5 blasts. We did a fresh transfer with 2 embryos neither one implanted. We than did 1 FET about a month after and that one implanted. I will be 38 weeks tomorrow with a baby girl. We did not do any testing on the embryos.On day 5 or 6, the embryo should have at least 70 cells and maybe upwards of 200! This is the all-important blastocyst stage. The inner cell mass (the inside of the embryo that becomes the fetus) and the trophectoderm (the outside layer of the embryo that becomes the placenta) will be distinguishable. At this point, it is time to either ...We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5. mcgraw hill science grade 3 pdf (A, B) The average number of euploid embryos per cycle at (A) day 3 and (B) day 5 tends to decline with increasing maternal age. Data points and whiskers show the mean and 1 SD, respectively. 16 bale hay trailer for sale near georgia Result(s): Of euploid embryos analyzed by aCGH resulting in miscarriage, 31.6% were mosaic and 5.2% were polyploid by NGS. The rate of chromosomal abnormalities was significantly higher in embryos resulting in miscarriage (36.8%) than in …41-42 years: 26.8% euploid. 43-44 years: 24% euploid. They also found that the chance of getting a complex abnormal embryo …Introduction. Many patients undergoing in vitro fertilization (IVF) elect to use preimplantation genetic testing for aneuploidy (PGT-A), hoping to optimize their chances of having a live birth and reduce their risk of miscarriage by selecting a euploid embryo for transfer [1-7].While the utility of PGT-A for different patient populations has been widely debated in the literature, the use of ...Most people are surprised to learn that needles are an inescapable part of the IVF process due to necessary daily injections and frequent blood draws. In this video, Fertility Nurse & Consultant ...My doctor said on average their patients have between 12-15 eggs retrieved and end up with between 2-6 frozen embryos. I recently had my first ... high pressure 37mm launcher Miscarriages are defined as the natural death of an embryo or foetus. It occurs in 30% of all conception and 10% of all clinical pregnancies. The term "recurrent miscarriage" means at least two consecutive pregnancies ended prematurely; this affects between 1% and 3% of all women.how many identical twins are born each year. brian kelly actor; bash bish falls state park camping; invitation code for netboom; Related January 15, 2023. 0 ...As the highest estimates for finding one euploidy embryo were achieved with 15-20 oocytes, deciding the best protocol for ovarian stimulation to achieve the maximum number of oocytes for retrieval based on the patients age and ovarian reserve would be of crucial importance. IntroductionNot all eggs are good when you get to a certain age. eeyoreneedsanewtail Yes, this is correct, but interpreted incorrectly. They pick the embryos that are looking the best to produce pregnancy. Most of the “unhealthy” embryos you refer to (aneuploid) would never become pregnancies or would become early spontaneous terminations.Jul 5, 2020 · The study indicated that to produce 1 and 2 euploid embryos, 5 and 14 oocytes would be required at age 34. However 10 and 24 oocytes would be required at age 38. Hence, the older a woman is the more eggs have to be retrieved in order to increase the chance of obtaining an additional chromosomally normal (euploid) embryo. poetry magazine submissions 2022 Twice as many 40-plus women as teenagers are having babies. 20 January 2023 ...We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5.A large 2019 study found no difference. So generally, PGS testing might make sense for women older than 35. The idea here is that egg quality diminishes with age and causes more embryos to be chromosomally abnormal, or aneuploid. There is a catch in all this though - you need to make euploid embryos for this to work! accident in concord From this we can see that women <35 have the highest live birth rate on Day 3 (34.9%) and this begins to drop with age (to 0.5% by >44 years). Note that these are national statistics looking at the average of close to 100,000 cycles and span all kinds of grades, diagnoses, and number of embryos transferred.It can be noted that in general, the recommendation is to transfer less embryos if the transfer occurs at the blastocyst stage (day 5-6 after fertilization) than if the transfer … washington post obituaries today Recent research, published in the The Journal of The American Medical Association, looked at a large number of women (almost 157,000) for a long period of time (from 2003 to 2012) in Britain to determine the likelihood of achieving a live birth after IVF. Specifically they were looking at how many IVF cycles were needed to achieve a live birth. The researchers included both fresh and frozen ...1.2%. 5.3%. Note that after age 40, the live birth rate always increases when using frozen embryos. Also, note that a 5 day embryo (called a blastocyst) tends to have a much higher success rate of IVF than a 3 day embryo. A blastocyst has matured and developed and survived.The clinical pregnancy rate was 83% in the cycles in which the endometrial thickness was decreased, compared to 49% in the no change group and 19% in the cycles where endometrial thickness increased (P=0.001). There was no correlation between embryo score and pregnancy with euploid embryos of each score having almost the same pregnancy rate. small curio cabinet with lightHi all, I just finished my first IVF cycle and elected to have my blasts biopsied and tested using CCS. I'm now in the 2ww to get results back from the…How often do Euploid embryos miscarry? Result(s): Of euploid embryos analyzed by aCGH resulting in miscarriage, 31.6% were mosaic and 5.2% were polyploid by NGS. The rate of chromosomal abnormalities was significantly higher in embryos resulting in miscarriage (36.8%) than in those resulting in live births (15.8%). jayco voice commands We decided to do PGT-A because we got 3 embryos and wanted to prioritize transferring euploid embryos first. Out of our 3, 1 was euploid, 1 was low level mosaic, and 1 was abnormal. We had success with the euploid. Honestly, had we not tested, we probably would have transferred the mosaic first because it was a day 5.The study analyzed more than 46,000 embryos between 2009 and 2014. In women aged 27 to 35 years, the median proportion of euploid embryos in each cycle remained constant at approximately 35% … ambient weather ws 2902c How often do Euploid embryos miscarry? Result(s): Of euploid embryos analyzed by aCGH resulting in miscarriage, 31.6% were mosaic and 5.2% were polyploid by NGS. The rate of chromosomal abnormalities was significantly higher in embryos resulting in miscarriage (36.8%) than in those resulting in live births (15.8%). the number of cells in the embryo what they look like (yes, appearance counts even as early as this stage!) Cell number An embryo that’s dividing well should ideally have between 6 to 10 cells...2020. 7. 1. ... With PGT-A procedure, euploid embryos can be selected to transfer, ... We have used this new method to perform blastocyst biopsy during the ...Two embryos are not always better than one! In fact, the BEST trial in 2013 showed that the likelihood of success with a single embryo transfer is equivalent to that of a double …Did you PGS test your donor egg embryos. Since I fertilized donor eggs with my own eggs during an IVF cycle mine were tested along with my own egg embryos - of 5 22y.o DE blastocysts 3 were aneuploid (2 with survivable aneuploidies), 1 was indeterminate and only one was euploid. If I had transferred based on Grade alone would likely have ... wida score levels Aug 23, 2021 · While all clinics are different, frozen embryo transfer cycles can cost around $4,000 total, including medications and transfer. Considering that the average cost of a round of IVF with fresh embryos is $12,000, FET dramatically cuts costs. PDF | To study the relationship between clinical outcomes after assisted reproduction and the migration speed of nucleolus precursor bodies (NPBs) in... | Find, read and cite all the research you ...The clinical pregnancy rate was 83% in the cycles in which the endometrial thickness was decreased, compared to 49% in the no change group and 19% in the cycles where endometrial thickness increased (P=0.001). There was no correlation between embryo score and pregnancy with euploid embryos of each score having almost the same pregnancy rate. beer trailer rental near me I was 29 when i did my 1st round of ivf. I ended up with 2 embryos, only 1 fertilized and it did NOT pass pgs. 2nd round- was put on coq10 600mg a day, for 3 …We created this PGT calculator for patients and physicians to help them build an efficient, cost-effective, and realistic IVF treatment strategy. Our calculations are base on over 3000 IVF PGD cycles and include over 5 million unique data points. Over 63,000 formulas process the data in real-time. Calculators present data based on maternal age ...Embryos graded as BB (3BB, 4BB, 5BB, 6BB) still have a good chance of success at 50% for pregnancy and 42.3% for live birth. Can a 5AA embryo be a girl? That means you only have a 28% chance for a girl. Boy embryos develop quicker in the early stages, which is why there's such a drastic difference between the two.First results of our retrospective study based on 90 cases under our care showed a live birth rate of 77.8% as seen in Figure 1 (p=.0001, a very low p value shows a very high statistical significance). Figure 1: Live birth rate at Braverman Reproductive Immunology in women with at least 1 euploid loss and after adequate immune therapies. math is fun tetris One of the commonest questions which patients ask is about their HCG level.Now you cannot determine whether the pregnancy is healthy or not based on a single... open mcdonaldpercent27s near me We created this PGT calculator for patients and physicians to help them build an efficient, cost-effective, and realistic IVF treatment strategy. Our calculations are base on over 3000 IVF PGD cycles and include over 5 million unique data points. Over 63,000 formulas process the data in real-time.If you get pregnant, the pelvic discomfort may go on for a few more weeks. Also, the egg retrieval procedure and the later embryo transfer can cause slight cramping in the days immediately after. 2 While mild to moderate cramping can be normal, call your doctor if the cramping is not relieved by over-the-counter pain medications . monson savings bank 4 Frozen, but we PGT-A tested. Final count 3 frozen, 2 Euploid and 1 mosaic. ER 11/24/22 & FET 1/18/23 🤞🏼 . You sign a paper, and they tell you if it survived thawing and/or if they needed to thaw a second, ... Generally they tell you how many embryos made it to blastocyst stage on the 5th or 6th day after the egg retrieval.4 Frozen, but we PGT-A tested. Final count 3 frozen, 2 Euploid and 1 mosaic. ER 11/24/22 & FET 1/18/23 🤞🏼 . You sign a paper, and they tell you if it survived thawing and/or if they … carl armato wife False-negative diagnoses were established after transfers of supposedly euploid embryos that led to miscarriages with aneuploid karyotypes (Maxwell et al., 2016). False-positive diagnoses of up to 50-80% were first reported following multiple trophectoderm biopsies of the same embryos in the same and different laboratories, ...1. Transfer of a euploid embryo should be limited to one, regardless of patient age. 2. Patients <35 years of age should be strongly encour-aged to receive a single-embryo transfer, regardless of the embryo stage. 3. For patients between 35 and 37 years of age, strong consideration should be made for a single-embryo transfer. 4. Main results and the role of chance: A total of day 5 (n = 12 535), day 6 (n = 11 939) and day 7 (n = 1298) embryos were included in the study analysis. The rate of …For many decades following World War II, the Jewish Councils appointed by Europe’s Nazi occupiers have been blamed for allegedly collaborating in the Holocaust. However, in a newly published ...Patients who have been previously surgically diagnosed with endometriosis and have embryos predicted to be euploid after in vitro fertilization will be divided into 2 ... crossword clue threw Many human embryos have genetic abnormalities. Genetic abnormalities are extra or missing chromosomes or parts of chromosomes, which is very common in human …Trisomy 15 embryos were similar to euploid embryos in their ability to reach the blastocyst stage by day 5 and showed similar expansion scores compared to euploid embryos (Fig. 1b, c).Similarly ...1. Transfer of a euploid embryo should be limited to one, regardless of patient age. 2. Patients <35 years of age should be strongly encour-aged to receive a single-embryo transfer, regardless of the embryo stage. 3. For patients between 35 and 37 years of age, strong consideration should be made for a single-embryo transfer. 4.Undoubtedly, one of the biggest surprises with in vitro fertilization (IVF) is the dramatic drop or loss of eggs/embryos. Many people assume that if they have 10 eggs collected, that's 10 embryos, which means 1 fresh transfer and 9 in the freezer.. Unfortunately, that can be far from true and there are multiple steps along the way that results can take an unexpected turn. 1967 gmc stepside for sale The white one is that we can have euploid or normal embryos, the black one is the abnormal or aneuploid embryos and the grey one is something called mosaicism. What does it mean? This means when we do a biopsy on …Oct 13, 2018 · From this we can see that women <35 have the highest live birth rate on Day 3 (34.9%) and this begins to drop with age (to 0.5% by >44 years). Note that these are national statistics looking at the average of close to 100,000 cycles and span all kinds of grades, diagnoses, and number of embryos transferred. Success stories with low grade embryos. My zillow williams bay wi The study indicated that to produce 1 and 2 euploid embryos, 5 and 14 oocytes would be required at age 34. However 10 and 24 oocytes would be required at … edexcel ial biology lab book pdf The embryo having an abnormal chromosome number. Most of us have 46 chromosomes. Most of our embryos do not. Embryos end up with an abnormal number of chromosomes because the egg has abnormal chromosomes, or the sperm has abnormal chromosomes or during the first cell division after fertilization, the chromosomes are … factory skeeter boat seats Specifically, implantation failure is considered to exist when the woman has not achieved pregnancy after 3 complete IVF cycles, with the transfer of about 6 or more embryos, or after 2 egg donation cycles. Also, the following requirements must be met during IVF in order for the infertility problem to be considered implantation failure:This study includes the retrospective analyses of IVF cycles involving embryo transfers of poor quality embryos on day 3 and day 5. We assessed a total of 488 transfers of poor quality embryos: 261 were performed on day 3 (mean number of embryos per transfer - 1.35 ± 0.5), and 227 were performed on day 5 (mean number of embryos per transfer - 1.48 ± 0.7).This didn't throw anything up. (3) 3D SIS. (4) Thrombophilia blood test to check for blood clotting issues. The cost of this was eye-watering. (5) HCG infusion 30 mins before the transfer. I had never heard of this. Apparently, it's to make the uterus more receptive to the embryo. nyc neurology