Gynaecology Flashcards
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
What are fibroids?
uterine leiomyomas
benign tumours of the smooth muscle or the uterus
oestrogen-sensitive
Types of fibroids?
intramural
subserosal
submucosal
pedunculated
Presentation of fibroids?
often asymptomatic
menorrhagia
prolonged menstruation
abdo pain
bloating or fullness
urinary or bowel symptoms
deep dyspareunia
reduced fertility
palpable pelvic mass on abdo or bimanual exam
Investigations for fibroids?
hysteroscopy
pelvic US
MRI prior to Sx
Mx of fibroids?
if <3cm:
Mirena coil (no distortion of uterine cavity)
symptomatic management with tranexamic acid and mefenamic acid
COCP
cyclical oral progesterons
GnRH analogues may be used prior to Sx to reduce size of fibroids
Sx options -> endometrial ablation, myomectomy, hysterectomy
If >3cm:
refer to gynae
mx as above + uterine artery embolisation
Complications of fibroids?
menorrhagia
iron deficiency anaemia
reduced fertility
pregnancy complications (miscarriage, premature labour, obstructive delivery)
constipation
urinary outflow obstruction
UTIs
red degeneration of fibroid
torsion of fibroid
malignant change to leiomyosarcoma (rare)
What is red degeneration of fibroids and how does it present?
ischaemia, infarct and necrosis of fibroid due to disrupted blood supply
occurs in larger fibroids during second or third trimester
severe abdo pain, low grade fever, tachycardia, vomiting
supportive management
What is endometriosis?
condition where ectopic endometrial tissue grows outside of the uterus
Presentation of endometriosis?
cyclical abdo or pelvic pain
deep dyspareunia
dysmenorrhoea
infertility
cyclical bleeding from other sites (haematuria, PR bleeding)
urinary and bowel symptoms
Investigations for endometriosis?
pelvic US (often unremarkable)
laparoscopy is gold standard (+/- biopsy)
Mx of endometriosis?
analgesia first-line (NSAIDs and paracetamol)
hormonal (COCP
POP
injection
implant
Mirena coil
GnRH analogues)
hormonal therapy will improves symptoms but not fertility
Sx -> laparoscopic excision or ablation, adhesiolysis, hysterectomy
What is adenomyosis?
condition where endometrial tissue grows inside of the myometrium
Presentation of adenomyosis?
later in reproductive years, usually in multiparous women
dysmenorrhoea
menorrhagia
deep dyspareunia
infertility
pregnancy complications
Investigations for adenomysosis?
TVUS
(MRI and TAUS are alternatives)
(gold standard is histological exam of uterus after hysterectomy -> obviously not always suitable)
Mx of adenomyosis?
non-contraceptive (tranexamic acid, mefenamic acid)
contraceptive (Mirena, COCP, cyclical oral progesterones)
Sx (GnRH analogues, endometrial ablation, uterine artery embolisation, hysterectomy)
Pregnancy complications associated with adenomyosis?
infertility
miscarriage
preterm birth
SGA
PPROM
malpresentation
need for c section
PPH
Rotterdam criteria for PCOS?
2 of the 3 key features:
oligoovulation or anovulation
hyperandrogenism (hirsutism, acne)
polycystic ovaries on US
Presentation of PCOS?
oligomenorrhoea or amenorrhoea
infertility
obesity (70%)
hirsutism
acne
hair loss in male pattern
Complications of PCOS?
insulin resistance and DM
acanthosis nigricans
CVD
hypercholesterolaemia
endometrial hyperplasia and ca
obstructive sleep apnoea
depression and anxiety
sexual problems
Investigations for PCOS?
Hormonal bloods:
raised LH
raised LH:FSH ratio
raised testosterone
raised insulin
normal or raised oestrogen
prolactin may be slightly raised
Pelvic US/TVUS:
12 or more developing follicles in one ovary
ovary volume > 10cm3
‘string of pearls’ appearance
screen for diabetes (OGTT)
Mx of PCOS?
reduce risks for obesity, CVD, hypercholesterolaemia and T2DM:
weight loss, smoking cessation, diet, exercise, antihypertensive and statins when necessary
protect against endometrial hyperplasia/ca:
Mirena coil
COCP
cyclical progesterones
Mx infertility:
weight loss
metformin
clomifene
ovarian drilling
IVF
Presentation of ovarian cysts?
most are asymptomatic -> found incidentally on scans
pelvic pain
bloating
fullness in abdo
palpable pelvic mass
acute pelvic pain -> torsion, rupture or haemorrhage of cyst
Most common type of ovarian cyst?
follicular cyst
Types of ovarian cyst?
follicular cyst
corpus luteum cyst (early pregnancy)
serous cystadenoma
mucinous cystadenoma (can get v big)
endometrioma (chocolate cyst)
dermoid cyst/ GCT (teratoma)
sex cord-stromal tumour
Hx of ovarian cysts?
benign vs malignant!!!
Red flags:
abdo bloating
anorexia
early satiety
weight loss
urinary symptoms
pain
ascites
lymphadenopathy
RFs:
age
post-menopause
incr. no. of ovulations
obesity
HRT
smoking
BRCA1 and BRCA2
Investigations for ovarian cysts?
no investigations needed for premenopausal woman with simple cyst <5cm
pelvic US
TVUS
CA 125
women under 40 with complex ovarian mass -> LDH, AFP, HCG (GCT)
Risk of Malignancy Index for ovarian ca?
menopausal status (1,3)
US findings (1,2,3)
CA 125 level
Mx of simple ovarian cysts?
<5cm -> self-resolve within 3 cycles, no follow up required
5-7cm -> routine referral to gynae and yearly US follow up
>7cm -> consider MRI or Sx
Complications of ovarian cysts?
torsion
haemorrhage
rupture
What is Meig’s syndrome?
a triad of:
pleural effusion
ascites
ovarian fibroma
ascites and pleural effusion resolve on removal of mass
RFs for ovarian torsion?
ovarian mass >5cm
benign tumours more common
pregnancy
before menarche in younger girls with long infundibulopelvic ligaments