Gynae FC from PPT Flashcards
(215 cards)
which cell type produces oestrogen in the menstrual cycle
granulosa cells
which hormone surge acts to cause ovulation
LH
which hormone drops to cause the bleeding in the menstrual cycle and where is it produced
- drop in progesterone levels cause bleeding
- progesterone produced by the corpus luteum - corpus luteum degenerates, it stops producing progesterone, which is when the lining of the womb is shed
which medication can be used to postpone a period - when on holiday
noresthisterone - take 3 a day from 3 days before period is due and stop taking when bleeding acceptable
- or take 2 packets of COCP back to back
what is the definition of primary amenorrhoea
- failure to menstruate by the age of 16
- or failure to menstruate by the age of 14 in someone with no secondary sexual characteristics
what are 5 causes of primary amenorrhoea
- Turner’s syndrome
- GU malformation - imperforate hymen
- hypothalamic failure - exercise, stress, anorexia
- constituional delay
- Kallmann’s syndrome
- sarcoidosis
- hyperprolactinaemia
- gonadal dysgenisi
- Swyer syndrome
- late onset CAH
what is the definition of secondary amenorrhoea
- absence of periods for ≥ 6 months
- in someone who is not pregnant
what are 5 causes of secondary amenorrhoea
- marathon runenrs
- PCOS
- premature ovarian failure
- iatrogenic
- pregnancy
- Sheehan’s syndrome
- Asherman’s syndrome
- hyperthyroidism
what biochemical findings would be present in someone with premature ovarian failure
- hypergonadotrophism
- hypooestrogenism
- raised FSH
how would you investigate primary amenorrhoea
- karyotype
- USS
- full history
- bloods - oestrogen, progesterone, Lh, FSH, testosterone
how would you investigate secondary amenorrhoea
full history - rule out exercise
pregnancy test
TFT
FSH and LH
mid luteal progesterone
prolactin
free androgen
how would you treat primary amenorrhoea
- history incl family histiry
- examination
- treat cause - surgery, oestrogen, pituitary tumour = surgery/chemo
how is secondary amenorrhoea treated
- cyclic progesterone
- bromocriptine - treat hyperprolactinaemia
- GnRH replacement - if cause hypothalamic failure
- thyroid replacement
- treat underlying cause
what is the triad of PCOS
Rotterdam criteria (2/3 must be present)
- 12 cysts on the ovary OR an ovary >10ml
- signs of clinical (excess hair) or biochemcial (blood test) raised testosterone/hyperandrogenism
- oligo or amenorrhoea
how does PCOS normally present
- oligomenorrhoea
- hirsutism
- infertility
- associated with obesity, metabolic syndrome, T2DM, sleep apnoea
what investigations would you expect do for someone with PCOS
serum testosterone/free androgen
thyroid function
prolactin
sex hormone binding globulin
test for diabetes
USS
what are some long term complications of PCOS
gestational diabetes
T2DM
CVD
endometrial cancer
NO increased risk of ovarian or breast cancer
what are some differentials for PCOS
thyroid dysfunction
hyperprolactinaemia
CAH
androgen secreting tumours
Cushing’s syndrome
how is PCOS treated
weight loss
smoking cessation
find and treat - T2DM, HTN, dyslipidaemia and OSA
clomifene - induces ovulation
metformin
ovarian drilling - fertility
COCP w/ w/drawal bleeds
hair removal cream
define menorrhagia
heavy menstrual bleeding that occurs at expected intervals of the menstrual cycle and interferes with QoL
no measurable quantity of blood
what is the name for menorrhagia with no identifiable underlying cause
dysfunctional uterine bleeding
what are some causes of menorrhagia
MC - fibroids
bleeding disorder - present at menarche
hypothyroidism
unknown
polyps
adenomyosis
endometriosis
cancer
what sort of questions do you need to ask in a history for menorrhagia
flooding
clots
interfere with life/work
pain
symptoms of anaemia
if its always been like this
what investigations for menorrhagia
FBC
physical VE
TSH
cervical smear
STI screen
TVUS
endometrial biopsy
hysteroscopy