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Published byBrittney McLaughlin Modified over 9 years ago
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Fertility issues for patients with lymphoma
Cheryl Fitzgerald Dept of Reproductive Medicine St Mary’s Hospital Manchester
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Issues to consider Two diagnoses Delay in conception
Malignancy and infertility Counselling Delay in conception Marked decline in female fertility 35 onwards Effect of disease/treatment Spermatogenesis Ovary – oocytes Uterus – radiotherapy induced damage
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Issues affecting fertility
Delay in conception – female Disease Surgery Chemotherapy Radiotherapy Long term prognosis – Welfare of Child
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Male Options - easy Female Options complex
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Men Men and postpubertal boys Need to screen for Hep B, Hep C and HIV
Urgent direct referral Phone Andrology SMH – Produce single (?more) sample Frozen in several ampoules Stored for up to 55 years Sperm used for insemination or IVF
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Options for treatment with cryopreserved sperm
Sperm quality good – use for insemination Sperm quality poor – use for IVF Treatment within NHS dependent upon NHS assisted conception guidelines Sperm can be transferred to private sector is not eligible
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Delay in conception - females
Initial treatment Long term therapy (breast) Time until “cure” Age related decline in female fecundity Age related decline in ovarian reserve Increase in oocyte aneuploidy Marked reduction 35 onwards
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Effects of chemotherapy
Damage to primordial follicles Damage to primary follicles Oogenesis – many months May be temporary disruption No benefit from GnRH agonist treatment No effect on uterus
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Risk factors for iatrogenic POF
Older women – poor ovarian reserve Dose, type and duration of chemotherapy Pelvic radiotherapy / TBI
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Effects of radiotherapy
Site specific Pelvic radiotherapy / TBI profound oocyte damage profound uterine damage Oocyte damage Premature ovarian failure Uterine damage Poor implantation rates after XRT Poor pregnancy outcome after XRT
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Fertility preservation options – pre-treatment
Cryoprserve ovarian tissue Cryopreserve oocytes Cryopreserve embryos Consider uterine function
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Ovarian cryopreservation
Laparoscopic oophorectomy Ovarian cortex frozen in strips Later – replace ovarian tissue within pelvis Spontaneous/stimulated ovarian cycle ?? In vitro maturation in the future 10 (+2) babies worldwide No time limit on storage
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Ovarian storage Risks Very low success rates Risk of laparoscopy
Risk of re-introducing disease Benefits No need for hyperstimulation No raised oestradiol level No need for partner Minimal delay in treatment
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Who is suitable? Lymphoma patients Very young girls ?? Prepubertal
No metastatic disease in ovaries Limited time
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Primordial follicle grafting
Stored ovarian tissue Primordial follicles grafted into mice No need to transplant tissue Ref. Brison et al Not published
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Egg and embryo freezing
Need to retrieve mature eggs from ovaries No stimulation – single egg – poor success Need for ovarian hyperstimulation
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Ovarian hyperstimulation cycle
10 days of ovarian stimulation – starts with period NB – delay caused by waiting for menses Vaginal egg recovery Ostradiol raised through stimulation
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Oocyte cryopreservation
problematic chromosomes on spindle aneuploidy after thaw zona pellucida and cortical granule damage affect fertilisation need for ICSI
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Oocyte cryopreservation
Freeze all mature eggs recovered Can be stored for 55 years HFEA Code of Practice 8 No reduction in “quality” of eggs with increasing time
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Oocyte cryopreservation - progress
Improving ++ vitrification Rapid cooling without crystal formation Vitrification Slow freeze Survival 80% 60% Fertilisation 75% 65% Pregnancy 9% 4%
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Safety of egg freezing 936 babies Birth anomalies – 1.3%
No difference compared to spontaneously conceived children Noyes et al 2009
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Embryo cryopreservation
need a partner “urgent” IVF minimum time 4-6 weeks ovarian hyperstimulation oocyte recovery eggs inseminated embryos created frozen
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Risks associated with “urgent” IVF for egg or embryo cryopreservation
high circulating oestradiol ( cf 500 pmol/l) issue with Ca breast potential seeding of gynae malignancies delay in cancer treatment
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Egg and embryo cryopreservation
Risks High circulating oestradiol Delay to treatment Need for partner (embryos) Risk that partner will “change mind” (embryos) Benefits Successful Proven method Proven safety
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Chance of baby – embryo freeze
HFEA data – livebirth per fresh cycle 2008 <35 years 32.8% 35-37 years 27.3% 38-39 years 19.0% 40-42 years 11.8% 43-44 years 4.8% >44 years 3.8% 30% embryo loss with freezing
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Embryo freezing Freeze all embryos created at pronucleate stage
Can be stored for 55 years No reduction in “quality” of embryos with increased time in storage
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Practicalities Urgency – referral early
Fax referral and confirm by phone Cycle control – COCP – limits delay Details Timing of chemo Need for pelvic radiotherapy Longterm therapies Prognosis
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After treatment Referred as any infertility patient
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Egg donation Donor – IVF stimulation Partner sperm for insemination
Embryo(s) replaced in recipient HRT support to 12 weeks of pregnancy Success rates – 30-50% Right of child to access donor information
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Surrogacy After hysterectomy / pelvic radiotherapy Problematic +++
No legal contract Surrogate – legal mother
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Eligibility – IVF in NHS
NHS IVF guidelines Female < 40 years Stable cohabitation >2 years One partner childless Only couples treated Female BMI< 30 No previous sterilisation
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Fertility preservation eligibility - NHS
Female age ? Cohabitation - ? One partner childless Single women treated BMI ? No previous sterilisation NB – PCT funding – needs agreement
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Welfare of the Child Legal requirement HFEA Act
Prognosis for patient important Partner / family support
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Thank-you
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