Gynaecology Flashcards
(138 cards)
Primary amenorrhoea definition?
not beginning menstruation before the age of 13 with no secondary sexual characteristics
not beginning menstruation before age of 15 with development of secondary sexual characteristics
Hypogonadotropic hypogonadism vs hypergonadotropic hypogonadism?
Hypo hypo -> lack of LH and FSH leading to lack of oestrogen
Hyper hypo -> lack of response to LH and FSH leading to excess LH and FSH and lack of oestrogen
Causes of hypogonadotropic hypogonadism?
problems with pituitary or hypothalamus
hypopituitarism
damage (radiotherapy, Sx)
significant chronic conditions (CF, IBD) can cause delay
excessive exercise or dieting
constitutional delay
Kallman syndrome
endocrine disorders (Cushing’s, hypothyroid, GH deficiency, hyperprolactinaemia)
Causes of hypergonadotropic hypogonadism?
Turner’s syndrome
congenital absence of ovaries
previous damage to gonads (torsion, cancer, mumps)
What feature is strongly associated with Kallman syndrome?
anosmia
Causes of primary amenorrhoea?
hypogonadotropic hypogonadism
hypergonadotropic hypogonadism
congenital adrenal hyperplasia
androgen insensitivity syndrome
structural pathology
What causes congenital adrenal hyperplasia?
congenital deficiency of 21-hydrozylase enzyme
autosomal recessive pattern
->
underproduction of cortisol and aldosterone
overproduction of androgens
Presentation of congenital adrenal hyperplasia?
tall for their age
facial hair
primary amenorrhoea
deep voice
early puberty
Presentation of androgen insensitivity syndrome?
female phenotype
male genotype
normal female breast tissue and external genitalia
internally -> testes in abdomen or inguinal canal, no upper vagina, no uterus, no fallopian tubes, no ovaries
Examples of structural pathology causing primary amenorrhoea?
imperforate hymen
transverse vaginal septae
vaginal agenesis
absent uterus
FGM
When to investigate primary amenorrhoea?
no signs of puberty at 13
no periods at 15
Investigations for primary amenorrhoea?
Full Hx and Exam
Bloods for underlying medical condition
FSH and LH
TFTs
IGF-1
prolactin
testosterone
genetic testing (microarray)
X-ray of wrist (constitutional delay)
pelvic US
MRI brain
Secondary amenorrhoea definition?
no menstruation for 3 months after previously regular cycles
investigate after 3-6 months or 6-12 months in women with previously irregular cycles
Causes of secondary amenorrhoea?
pregnancy
menopause
premature ovarian failure
contraception
hypothalamic or pituitary pathology
PCOS
uterine (Asherman’s)
thyroid pathology
hyperprolactinaemia
Hypothalamus causes of secondary amenorrhoea?
excessive exercise
low BMI and eating disorders
chronic disease
physiological stress
Pituitary causes of secondary amenorrhoea?
pituitary tumours (prolactinoma, macroadenoma)
pituitary failure (trauma, Sx, radiotherapy, Sheehan’s syndrome)
Treatment for hyperprolactinaemia?
dopamine agonists (e.g., bromocriptine, cabergoline)
Investigations for secondary amenorrhoea?
Hx and exam
Hormonal bloods (LH, FSH, prolactin, bHCG, TFTs, testosterone)
US pelvis, MRI pituitary
Management options for PMS?
lifestyle changes
COCP
SSRIs
CBT
Menorrhagia definition?
based on what the woman herself considers to be excessive bleeding
more than 80mls of blood loss
Causes of menorrhagia?
dysfunctional uterine bleeding (no cause)
extremes of reproductive age
fibroids
endometriosis
adenomyosis
PID
contraceptives (copper coil)
anticoagulants
bleeding disorders (von Willebrand)
endocrine disorders
CT disorders
endometrial hyperplasia or ca
PCOS
Investigations for menorrhagia?
Hx and Exam
pelvic exam with speculum and bimanual
FBC (anaemia)
swabs (infection)
coag screen
TFTs
TVUS or PUS
outpatient hysteroscopy (if suspected fibroids, suspected endometrial pathology, persistent IMB)
Management of menorrhagia?
if cause -> treat
tranexamic acid + mefenamic acid
Mirena coil
COCP
cyclical oral progesterone
refer if management unsuccessful or symptoms suggest underlying pathology
Final options for menorrhagia?
endometrial ablation
hysterectomy