2: PCOS and Hirsuitism Flashcards

1
Q

Define PCOS

A

Condition caused by raised androgens and presence of several immature follicles in the ovary

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2
Q

What are 2 RF for PCOS

A

FH

Diabetes

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3
Q

What are symptoms of PCOS

A
  • Oligomenorrhoea (or amenorrhoea)
  • Hirsuitism
  • Obesity
  • Depression
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4
Q

What may be seen in PCOS

A
  • Acanthosis nigricans

- Male pattern hair distribution

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5
Q

What are the hormonal abnormalities in PCOS

A

Raised LH

Insulin resistance

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6
Q

Where is LH produced

A

Anterior pituitary gland

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7
Q

Why is LH increased in PCOS

A

Increase pulsatile GnRH secretion. Raised LH stimulates over-production of androgens

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8
Q

What does insulin resistance cause

A

Hypersecretion of insulin

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9
Q

What does insulin do

A

Decreases concentration of sex-hormone binding globulin - increasing free circulating androgens

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10
Q

What is the effect of increased androgens

A

Increased androgens means there is more negative feedback and no LH surge. This means there are lots of partially developed ovarian follicles. No follicle is selected to be the dominant follicle.

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11
Q

What criteria is used to diagnose PCOS

A

Rotterdam

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12
Q

What does the Rotterdam criteria state

A

Individual needs two of the following

  1. Oligomenorrhoea
  2. Clinical or biochemical features of hirsutism
  3. PCOS on imaging
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13
Q

How will testosterone appear in PCOS

A

Raised

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14
Q

How will SHBG appear in PCOS and why

A

Low - inhibited by insulin

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15
Q

How will LH appear in PCOS

A

Raised

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16
Q

How will FSH appear in PCOS

A

Normal

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17
Q

What is a ‘classical picture’ of PCOS

A

LF: FSH > 3:1

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18
Q

Why may TFTs be ordered in PCOS

A

Exclude hypothyroidism

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19
Q

How will ovaries present in PCOS

A

‘Ring of pearls’ appearance

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20
Q

What do women with PCOS have increased risk of

A

CVD

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21
Q

What 5 things should be performed in PCOS to screen for cardiovascular risk

A
  1. Measure waist circumference
  2. QRISK 2 score
  3. OGTT
  4. BP
  5. Lipid profile
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22
Q

What score is calculated for PCOS women

A

QRISK-2

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23
Q

What does QRISK 2 predict

A

Risk cardiovascular event within next 10-years

24
Q

What should women with QRISK score >10% receive

A

Atorvastatin 20mg

25
What dose of atorvostatin is given for primary prevention
20mg
26
What dose of atorvastatin is given for secondary prevention
80mg
27
What is the risk of oligomenorrhoea in PCOS
Oligomenorrhoea - means anovulatory cycles are occurring. This causes exposure to unopposed oestrogen which can cause proliferation endometrium
28
What is given to treat oligomenorrhoea in PCOS
COCP
29
What lifestyle factors are recommended in PCOS
Weight loss
30
In severe cases of obesity in PCOS what may be used
Orlistat
31
What is used to promote fertility in PCOS
Clomiphene
32
Why is clomiphene limited to 6-cycles
Increases risk OHSS and ovarian cancer
33
What is given to aid menstrual disturbance and ovarian function in PCOS
Metformin
34
When is metformin recommended in PCOS
All PCOS women with BMI >25
35
What is third-line for sub fertility in PCOS
Laparoscopic ovarian drilling
36
What is first-line to manage hirsutism
Shaving
37
What is second-line to manage hirsutism
Anti-androgens: Cyproterone acetate Spirinolactone Finasteride
38
What are 4 complications of PCOS
CVD T2DM Endometrial cancer Miscarriage
39
Define hirsutism
Androgen-dependent hair growth
40
What pattern of hair-growth is hirsutism
Male-pattern
41
What is hypertrichosis
Androgen-independent hair growth in females
42
What is the most common cause of hirsutism
PCOS
43
Give 5 other causes of hirsutism
- PCOS - Androgen-secreting tumour - Cushing's - CAH - Obesity (increase conversion androgen to oestrogen) - Medications
44
What two medications can cause hirsuiitsm
Phenytoin | Corticosteroids
45
When does hirsutism often onset
Adolescence- then worsens
46
What scoring system is used for hirsutism
Ferriman-Galleway System
47
Explain ferriman-galleway scoring system
Uses 8-areas each given a score 0-4
48
What score on ferriman-galleway system indicates hirsutism
>8
49
What is severe hirsutism on scoring system
>15
50
When should individuals with hirsutism be referred under 2W referral pathway
If signs of androgen-secreting tumour
51
What are indicators of androgen-secreting tumour
- Sudden-onset hirsutism - Virillisation - Pelvic mass
52
When should individual with hirsutism be referred to endocrinology
Suspect Cushing's disease
53
What do high levels of 17-OH progesterone indicate
CAH
54
What is first-line for hirsutism
Shaving and waxing
55
What is given to manage facial hirsutism
Topical eflornithine
56
What are 3 CI to topical eflornithine
Pregnancy Breast feeding Under-19
57
What medication is given to manage hirsutism
COCP