Fertility Flashcards

1
Q

Definition and incidence of azoospermia

A

Complete absence of spermatozoa in the ejaculate

1% all men, 10-15% infertile men

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2
Q

Obstructive causes of azoospermia

A

MC in the vas deferens epididymus or ejaculatory ducts

  • infections
  • inflammation
  • prev surgery in pelvic area
  • development of a cyst
  • hernia surgery
  • vasectomy
  • cystic fibrosis
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3
Q

Non-obstructive causes of azoospermia

A

Genetic: Kallmans, Klinefelter, Y chromosome deletion
Hormone imbalances
Retrograde ejaculation
Testicular causes:
- Anorchia
- cryptorchidism
- sertoli cell-only syndrome
- Spermatogenic arrest
- mumps orchitis
- testicular torsion
- tumours
- reaction to meds
- radiation
- chronic disease - DM, cirrhosis, renal failure
- Varicocoele

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4
Q

Diagnosing azoospermia

A

2 separate samples, examined under high-powered microscope following centrifuge spin
If first sample shows azoospermia, send repeat sample ASAP

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5
Q

NB history points wrt azoospermia

A

Fertility success/ failure
Childhood illness
Surgery/ trauma to pelvic area
Urinary/ reproductive duct tract infections
STIs
Exposure to chemo/ radio
Current/ past meds
Alcohol/ smoking/ drug use
Recent fever or exposure to heat
FHx birth defects, learning disabilities, repro failure or CF
Pituitary sx - anosmia, visual field defects, loss of libido

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6
Q

Ix in azoospermia

A

Testosterone and FSH level
Genetic testing
XR/ USS reproductive organs
Brain imaging (MRI pituitary)
Testicular biopsy

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7
Q

Management of azoospermi

A

Depends on cause

Blockage - surgery - unblock/ reconstruct
Low hormone production - HRT: FSH, HCG, clomiphene, anastrazole, letrozole
Varicocoele - surgery
Extensive biopsy for direct sperm retrieval

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8
Q

Abnormal types of findings on semen analysis

A

Asthenozoospermia - reduced mobility
Oligozoospermia - sperm concentration < 20x10^6/ml
Teratozoospermia - abnormal morphology
Hypospermia - decreased volume ejaculate
Azoospermia - no sperm in sample

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9
Q

Values looked at in semen analysis

A

Sperm volume
Sperm concentration
Total sperm count
Sperm progressive motility
Sperm morphology
SpermDNA fragmentation
Non-sperm cells

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10
Q

Normal cut off value for sperm volume and concentration

A

Volume - >1.5ml
Concentration - > 15 million/ml

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11
Q

Normal total sperm count

A

> 39 million

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12
Q

Normal sperm morphology and motility

A

Morphology > 4%
Motility > 32%

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13
Q

When to perform an HSG

A

within first 10 days of a cycle

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14
Q

CI to HSG

A

Pregnancy
Pelvic infection

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15
Q

Findings seen on HSG

A

Tubal blockage
Obstruction site
Lumen on tube
Presence of adhesions
Orientation of tubes
Hydrosalpinx
Uterine anomalies
TL reversal

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16
Q

What is salpingitis isthmica nodosa

A

AKA SIN, diverticulosis of fallopian tubes

= consequence of prev PID
- multiple small diverticular collections of contrast around tube

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17
Q

DDX salpingitis isthmica nodosa

A

Tubal TB
Endometriosis
Tubal adenomyosis

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18
Q

Risks assoc w HSG

A

Infection
Injury
Allergy to dye
Radiation exposure

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19
Q

Side effects of HSG

A

Cramps
Dizziness
Nausea
Vaginal bleeding 1-2days

20
Q

Problems with fertility in Turners syndrome

A

Common due to rapid loss of eggs in ovaries
Spontaneous pregnancy is rare - 8%
High rate of miscarriage - 40-45%
Can fall pregnant with donor eggs but increased risk

21
Q

What makes Turners patients’ pregnancies high risk

A

Developing heart vessel problems
- during pregnancy, can have aortic rupture
- 100x more likely to die during pregnancy
- vessel changes can persist post pregnancy leading to early. death in mother
NB to have cardio consult and MDT input

40-60% risk of CS due to short stature

22
Q

Contraindications to pregnancy in Turners patient

A

Aortic diameter > 35mm
Hx of aortic surgery
Uncontrolled HTN

23
Q

Impacts of smoking on reproductive health

A

Cigarette metabolites are toxic to gametes
- morphological problems with sperm
- oxidative damage at oocyte and embryo

Brings forward the age of menopause
Higher change of LBW, PTB, IUGR, SIDS
- LBW: 200% inc risk
- PTB: 50%
- miscarriage: 20-30% risk T1miscarriage

IVF - 40% less likely to conceive if ongoing smoking

24
Q

Defn POI/ POF

A

Menopause <40
Approx 1% women
0.1% <30
0.01% <20

25
Modifiable risk factors for POF
Smoking Chronic disease treatment
26
Causes of POF
90% no underlying cause found; spontanous/ idiopathic Autoimmune (5%) - 12OH-Ab or ACA (adrenocortical antibiodies), addisons --> refer endo - TPO Ab; TSH measured yearly Genetic: Turners, Fragile X, Galactossaemia Fam Hx Infections: mumps, TB, malaria Surgery Cancer rx
27
Investigations for POF
Genetic/ chromosomal: - karyotyping --> ? Turners --> +ve: refer endo, cardio and genetics - Test for Y chromosome material --> discuss gonadectomy - Fra-X --> refer genetics - Autosomal Ab testing if evidence suggesting specific mutation eg BPES Antibodies: - ACA/ 12OH Ab --> refer endo TPO-Ab --> TSH testing yearly
28
Signs of POF
Anxiety Changes in mood Chhanges in skin conditions Difficultysleeping Discomfort during intercourse Feelings of loss of self Hair loss of thinning headaches or migraines Hot flushes Increase in facial hair Joint stiffness L/o self confidence Night sweats Palpitations Problems w memory/. brain fog Tinnitus L/olibido Recurrent UTIs Vaginal dryness
29
Diagnosing POF
Amenorrhoea and symptomatic GDG recommends: Oligo/amenorrhoea for 4/12 and FSH >25 on 2 or more occasions 4 weeks apart
30
Managing bone health in POF
Lifestyle - weight-bearing exercise, weight, diet, smoking E replacement - reduces fractures Bisphosphonates COCP DEXA - if osteo, repeat in 5 years after E
31
Counselling in POF
Reduced life expectancy if untreated - CVS risks Small chance of conception Still use contraception if want to avoid pregnancy Therapy
32
HRT in POF
No increase in breast Ca P for uterine protection - ethinylestradiol + oral cyclic progesterone Annual monitoring Androgens - evaluated 3-6 monthly, limited to 24 months BRCA gene - HRT conrtaindicated in BRCA survivors, carriers w BSO can have HRT Migraines and HTN should not be a contraindication
33
Definition of OHSS
Ovarian hyperstimulation syndrome Complication of ART - exposure to HCG, LH following controlled ovarian stimulation by FSH - Production of proinflammatory markers - VEGF - Increase vascular permeability - loss of fluid into 3rd space --> ascites, pleural and pericardial effusions - severe --> hypovolaemia, reduced serum osmolality and reduced sodium
34
Diagnosing OHSS
Abdo distension and pain following trigger injection to promote final follicular maturation Early OHSS: within 7 days of injection; excessive ovarian response Late OHSS: >10 days post HCG injection Symptoms: severe pain, pyrexia, peritonism Bloods: elevated HCT, reduced osmolality, reduced sodium
35
DDx of OHSS
Pelvic infection Abscess Appendicitis Ovarian torsion Cyst rupture Bowel perf
36
Symptoms of OHSS
Abdo bloating Abdo pain N&V Breathlessness Reduced urine output Leg and vulval swelling Assoc comorbs such as thrombosis
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NB history points wrt OHSS
Time of onset of symptoms relative to trigger Med used for trigger - hcg vs GnRH agonist Number of follicles on final monitoring scan Number of eggs collected Were embryos replaced and how many PCOS diagnosis
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Defn mild OHSS
Abdo bloating Mild abdo pain Ovarian size < 8cm
39
Defn mod OHSS
Moderate abdo pain Nausea +/- vomiting Ultrasound evidence of ascites Ovarian size 8-12 cm
40
Defn severe OHSS
Clinical ascites +/- hydrothorax Oliguria <30ml/hr Haematocrit >0.45 Hyponatraemia <135 Hypo-osmolality <282 Hyperkalaemia >5 Hypoproteinaemia <35 Ovarian size >12
41
Critical OHSS
Tense ascites/ large hydrothorax Haematocrit >0.55 WCC > 25 Oliguria/ anuria Thromboembolism ARDS
42
Outpatient management OHSS
Counselling Fluid in/out monitoring No NSAIDS If severe - LMWH Paracentesis Monitoring: - review in 2-3 days - baseline labs repeated if worsening - haematocrit NB guide to the degree of intravascular depletion
43
Which patients with OHSS to admit
Severe pain Unable to maintain fluid intake Worsening OHSS Unable to attend follow up Increasing HCT Critical OHSS
44
Inpatient management of OHSS
MDT if persistent haemoconcentration and dehydration Critical --> ICU Sx relief: - analgesia (no NSAIDs) - fluid replacement - avoid diuretics - ascites --> paracentesis - Thrombosis --> LMWH, TEDS Surgical management if torsion/ ectopic If in pregnancy - incr risk of PET and PTL
45