dr guy gudex - gp cme north/sat_plenary_1500_gudex... · 2018-06-09 · •use of gnrh antagonist...
TRANSCRIPT
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Dr Guy GudexDirector
Repromed
15:00 - 15:15 Assisted Reproduction 2020
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Assisted Reproduction 2020
Dr Guy Gudex
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ART in NZ -2014 ACART Report
• 5,891 ART cycles
• Average age women 35.6y 22% aged 40 or more
• SET rate – 84% fresh ET (70% 2012) 97% thaw (91% 2012)
• Multiple pregnancy rate 3.4 % (5.1% 2012)
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The OHSS free clinic
17%
23%
29%
0%
5%
10%
15%
20%
25%
30%
35%
2015 2016 2017
Pe
rce
nta
ge
Years
Repromed Percentage of Freeze Only Cycles per OPU
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Reduction of OHSS risk prior to cycle commencement
• Higher dose of FSH used during ovarian stimulation is associated with increased risk of OHSS
• Use of GnRH antagonist rather than GnRH agonist during ovarian stimulation for ART reduces the incidence of OHSS
• Concomitant use of metformin in women with PCOS undertaking an IVF or ICSI cycle reduces the incidence of OHSS
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D1 (Period)
D7 D13(TVOR)
D18(ET)
D29(bhCG test)
rFSH
antagonist
Duration: 4 weeks, 3 visits to clinic (D9 scan, TVOR, ET).
B/S
Antagonist cycle – the key to “patient friendly” IVF
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Current Methods of Embryo Selection
Invasive
• Preimplantation Genetic Screening (Only method to screen for Aneuploidy)
Non-Invasive
• Embryo Morphology (primary / widely used)
• Time-Lapse kinetics• Metabolomics
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Aneuploidy – Why bother?
Dramatic decline in IVF success rates with maternal age is mainly caused by embryonic aneuploidy(Hassold et al., 1996; Vialard et al., 2011)
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EmbryoSelect @ Repromed
• Repromed now offers ‘EmbryoSelect’ which is Pre-implantation Genetic Screening (PGS) using Next Generation Sequencing (NGS)
• Identifies the most competent (euploid) embryos for transfer
• Indications for EmbryoSelect use in IVF include
✓ Advanced maternal age (>35y)
✓ Recurrent miscarriage
✓ Repeated implantation failure
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Embryo Mosaicism
• Controversial topic
• May reflect inner cell mass and / or trophectoderm
• Several studies have shown normal babies born after detection of mosaicism up to 50%
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Euploid Embryo – 46,XY
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Aneuploid Embryo – 47, X0 (Trisomy 18 + one sex chromosome)
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Trophectoderm Biopsy – with laser
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Ovarian Reserve Testing AMH
• Single blood test done at any time in a menstrual cycle
• Patient should not be taking OC or depo provera
• Cost currently $90.00, result available within two weeks
• Repromed offering AMH testing to all patients including those presenting with RPL
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>75% Percentile: Probable PCOS
25-75% Percentile: Normal Ovarian Reserve
<25% Percentile: Low Ovarian Reserve
AMH Profile
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Anti Oxidants and Subfertility
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Improving success rates in IVF Antioxidants
• Cochrane Review 2017 on oral antioxidants for female subfertility –increase in LBR compared to placebo
• Melatonin 3mg daily , COQ10 300mg daily, Green tea
• Anti oxidants mitigate mitochondrial DNA damage and
• Increase embryo quality
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Improving Oocyte Quality
• Antioxidants
• Pre-treatment with testosterone – improves ovarian sensitivity to FSH
• Double trigger GnRH agonist and hCG
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Fertility Preservation
• Significant progress in the development of egg freezing and thawing techniques with improved pregnancy rates - vitrification
• Random start IVF stimulation and dual stimulation protocols
• Restart FSH stimulation 5 days after OPU
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Social Egg Freezing (SEF)
• Not an insurance policy against childnessness
• Average age in UK for SEF 38 years
• Alternative to sperm donation for single women
• Ideally done under the age of 35 years
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Feb 2016
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Case study
• Ms AB age 53
• Presented 2016 age 51 requesting donor egg IVF in USA
• History of LSCS 2007 age 44 – healthy baby girl
• Assessed by Obstetric Physician – advised to take low dose Aspirin, Calcium in early pregnancy to reduce pre eclampsia risk
• 24 yr old donor, SET – with 10 embryos cryopreserved
• Normal pregnancy and LSCS at term 2017 age 52
• Presents requesting assistance with FET in USA- has seen obstetric physician
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Issues
• Maternal mortality – low but probably risk increased
• Maternal morbidity increased e.g. risk of hypertension 35% in women aged 50 yrs with egg donation pregnancy
• Still birth risk significantly increased in VAMA group
• Ethical concerns – patient right to choose treatment vs clinical right to refuse access
• Appropriate screening e.g. ECG, HbA1C, physician review, mammography
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What should we be doing?
• Try and better adapt to the needs of working and/or future mothers.
• Creating better public awareness about age related reproductive decline and fertility preservation.
• Offer age specific information and counselling – women in their 20’s and 30’s should be counselled about the age related risk of infertility when they present for sexual health or contraception discussion.
• Offer predictive tests such as AMH or AFC.
• Try and convince those women who may benefit from SEF to present before the age of 35.
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Endometrial receptivity
• New tests using microarray analysis of genes involved in
endometrial implantation
• Endometrial biopsy taken post ovulation
• Results expressed as pre-receptive, receptive or post-receptive
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IVM at Fertility Specialists, Perth, Australia
• Current practice: Mainly PCO/S patients, 3x days FSH, no hCG, IVM in G2 medium + 10% serum, ICSI (or IVF), freeze all cycles, blastocyst SET.
• Retrospective analysis of IVM vs IVF (Walls M et al (2015) Hum, Reprod.)
0
1
2
3
4
5
IVM IVF
Me
an /
OP
U
Useable Blastocysts
0
10
20
30
40
IVM IVF
%
CPR (per FET)
0
10
20
30
40
IVM IVF
%
Live Birth Rate (per FET)
0
20
40
60
IVM IVF
%
Cumulative Live Birth Rate/OPU
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Summary
• Improved embryo selection
• OHSS reduction
• Developments in understanding endometrial receptivity and implantation
• Social egg freezing increased demand
• Increased demand for ART in advanced maternal age group
• Access to public funded treatment reviewed as demand increases