obs and gynae Flashcards
what is the most common type of cervical cancer
squamous cell carcinoma
what is the most common type of endometrial cancer
adenocarcinoma
what is the most common type of vulval cancer
squamous cell carcinoma
what is the most common type of ovarian cancer
adenocarcinoma
symptoms of ovarian cancer
bloating, early satiety, abdo fullness, pelvic pain, abnormal bleeding, weight loss, urinary symptoms, bowel habit change
symptoms of cervical cancer
post coital bleeding
incidental finding on smear
inter menstrual bleeding
deep dyspareunia
presentation of vulval cancer
itching bleeding ulceration abnormal lump fungating lesion
symptoms of endometrial cancer
post menopausal bleeding
menorrhagia
intermenstrual bleeding
post coital bleeding
causes of post menopausal bleeding
endometrial cancer endometrial hyperplasia vaginal dryness trauma cervical cancer
causes of post coital bleeding
cervical ectropion
cervical cancer
cervical polyp
endometrial polyp
causes of menorrhagia
fibroids polyp dysfunctional uterine bleeding systemic: hypothyroid endometrial cancer endometrial hyperplasia
2WW criteria post menopausal bleeding
anyone over the age of 55 post menopausal bleeding
2WW criteria cervical cancer
abnormal smear results
risk factors for cervical cancer
HPV 16 and 18, smoking
risk factors for ovarian cancer
obesity, BRCA 1 and 2, increased number of ovulations so early menarche, late menopause
risk factors for endometrial cancer
post menopausal, HRT, COCP, early menarche, late menopause, no pregnancies
risk factors for vulval cancer
smoking,
causes of pelvic pain
acute: ectopic, ovarian torsion
chronic: large fibroid, large cyst, endometriosis (cyclical), adenomyosis (cyclical)
causes of pelvic pain
acute: ectopic, ovarian torsion, cyst rupture, PID
chronic: large fibroid, large cyst, endometriosis (cyclical), adenomyosis (cyclical), premenstrual syndrome
name 4 types of ovarian cancer
teratoma
investigations for cervical cancer
HPV testing and cervical cytology
colposcopy and biopsy
CT for FIGO staging
investigations for ovarian cancer
TVUSS or transabdo USS laparoscopic exploration and biopsy CA 125 AFP,BHCG,LDH CT for staging
investigations for endometrial cancer
TVUSS for endometrial thickness
hysteroscopy and biopsy
CT for staging
investigations for vulval cancer
biopsy / resect lesion
what staging systems are used for gynae cancers
FIGO
cervical cancer staging (1-4)
1. cervix only 2a - cervix + upper 1/3 vagina 2b cervix + lower 2/3 vagina and pelvic wall 3. bladder and bowel involvement 4. distal mets
ovarian cancer staging (1-4)
- ovary only
- pelvic only
- past pelvis but still in abdo
- distal mets
treatment of cervical cancer
large loop excision
hysterectomy
treatment of ovarian cancer
oophrectomy
hysterectomy and bilateral salpingoophrectomy
chemotherapy
radiotherapy
treatment of endometrial cancer
hysterectomy
symptoms of ectopic pregnancy
unilateral severe pelvic pain, amenorrhoea for 6-8 weeks, PV bleed (often brown),
ruptured: pallor, syncope, hypotension, pv bleed, tachy
risk factors for ectopic pregnancy
endometriosis
PID
what investigations should you do for suspected ectopic pregnancy
TVUSS
BHCG
pregnancy test
management of ectopic pregnancy
medical:
watch and wait for 48 hours
IM methotrexate
surgical: laparoscopy oophrectomy
management of ectopic pregnancy ruptured
laparoscopic oophrectomy
management of unruptured ectopic, embryo <3cm and BHCG <1500 and no heart beat
watch and wait for 48 hours, expectant
criteria for watch and wait (expectant) for ectopic pregnancy
no heart beat, BHCG < 1500, embryo less than 3 cm and unruptured
complications of ectopic pregnancy
haemorrhage into perionteum
peritonitis
subfertility
investigation findings in ectopic pregnancy
empty uterus
mass in fallopian tubes
fluid in pouch of douglas if ruptured
most common location for ectopic pregnancy
ampulla
definition of premature menopause
cessation of menstruation for 12 months, before the age of 40
what blood test do you do to test for menopause
FSH levels
causes of premature menopause
prev chemo, radiotherapy
premature ovarian insufficiency
management of premature menopause
HRT for all women until normal age of menopause (age 50) to protect bones and other symptoms of oestrogen deficiency
HRT choice for women with uterus
combined
HRT for women without uterus
oestrogen
describe menstrual cycle
day 1-14 follicular phase
day 15-28 luteal phase
day 14 = ovulation
follicular phase: rising FSH causes follicles to develop, oestrogen is also rising, then when oestrogen suddenly drops there is a surge in LH which causes ovulation
luteal phase: after ovulation the corpus luteum forms and starts to produce progesterone if the egg isn’ fertilised. Then when the corpus luteum begins to break down the levels of oestrogen and progesterone begin to fall again causing the uterine lining to shed. as oestrogen is falling, LH and FSH begins to be released from anterior pituitary again as there is no negitive feedback bringing us back to day 1 where follicles begin to develop again.
function of progesterone
maintains endometrial thickness
maintains thick cervical mucus
function of oestrogen
secondary sex characteristics
where is oestrogen produced
follicles in ovary
where is progesterone produced
corpus luteum
placenta
investigations for menorrhagia
FBC to look for anaemia
TVUSS
hysteroscopy if abnormal USS
systemic: TFT’s, HBa1c
medical management of dysfunctional uterine bleeding
1st line NSAID mefenamic acid
tranexamic acid to stop bleeding
tx the cause:
medical management of dysfunctional uterine bleeding
1st line NSAID mefenamic acid
tranexamic acid to stop bleeding
2nd line - hormonal control- cocp, mirena, depot
tx the cause: endometrial ablation, resection of fibroids, polyp removal, uterine artery embolisation
radical - hysterectomy
investigations for post menopausal bleeding
TVUSS
hysteroscopy
speculum and bimanual exam
total contraindications to HRT
current or past breast cancer
current or recent DVT/PE
definition of endometriosis
endometrial lining growing outside of the uterus
symptoms of endometriosis
cyclical abdo/pelvic pain, menorrhagia, deep dyspareuia, subfertility, bloating
urinary frequency, dysuria
dyszchecia, pr bleed
gold standard investigation in endometriosis
laporoscopic exploration
name 4 causes of a raised CA 125
ovarian cancer
endometriosis
liver disease
name 3 findings on examination in a pt with endometriosis
fixed retroverted uterus
fixed cervix
adnexal mass
pain on examination
where would you find chocolate cysts
ovaries - endometriomas
how can you optimise fertility in endometriosis
removing ectopic endometrial tissue via surgery
1st line management endometriosis
NSAID symptom control - mefenamic acid, tranexamic acid
2nd line management of endometriosis
contraception COCP, mirena, depot
management options for endometriosis
nsaid symptom control
hormonal - cocp, depot mirena
goserelin GnRH analogue can be used short term
surgical - removal of endometriomas
hysterectomy
what is adenomyosis
endometrial tissue growing in the myometrium
investigations in adenomyosis
TVUSS
management of adenomyosis
hormonal control
symptoms of menopause
vasomotor - flushes, night sweats, tachy,
neuro - brain fog, low mood,
weight changes
SE / complications of menopause
dementia
parksinsons
osteoporosis
what is an adnexal torsion
when the ovary and the fallopian tube twist on the ligaments
risk factors for ovarian torsion
large cyst
presentation of ovarian torsion
sudden onset severe unilateral pelvic pain associated with nausea and vomiting, low grade fever
can also be intermittent if twists and un twists
1st line investigation for suspected ovarian torsion
TVUSS
findings on TVUSS for ovarian torsion
whirlpool sign - fluid
gold standard investigation for ovarian torsion
laparoscopic exploration
what is a polyp made of
endometrial epithelium
what is a fibroid made of
endometrium and smooth muscle
most common type of fibroid
intramural
symptoms of fibroids
asymptomatic menorrhagia pelvic pain / ache / fullness dyspareunia urinary symptoms (if large) - frequency bowel symptoms (if large) subfertility if large / blocking
complications of fibroids in pregnancy
red degeneration in 2nd or 3rd trimester when fibroid breaks down and becomes necrotic
miscarriage
premature labour
investigations for fibroids
TVUSS
hysteroscopy
management of fibroids (medical and surgical) and how to choose what to do
medical - mirena
symptoms - mefenamic acid
surgical - endometrial abalation, uterine artery embolisation, fibroidectomy
which type of fibroid is most likely to cause heavy menstrual bleeding
submucosal
treatment of symptomatic polyps
polypectomy
where is a barthaloins cyst located
posterior vagina on each side in the vulva
what is the treatment of barthaloins cyst
no treatment needed unless large then can drain
what is treatment of barthaloins abscess
antibiotics - usually e.coli infection, drainage
where is a gartners duct cyst located
upper vagina
where are urethral diverticulums located
lateral vaginal wall
what are symptoms of a urethral diverticulum
recurrent uti,
where are nabothian cysts located
on the cervix
what is a cervical ectropion
an area of the cervix that has changed from squamous to columnar
what is the most common cause of post coital bleedinh
cervical ectropion
what factors increase risk of developing a cervical ectropion
young age
what is lichen sclerosis
when elastin in vaginal skin turns into collagen and becomes hard, dry and pale (lichenified)
name 2 complications of lichen sclerosis
narrowing of vaginal and urethral openings due to skin tightness
SCC of vulva
what would you find on examination in lichen sclerosis
pale looking vulva, dry, hard
symptoms of lichen sclerosis
itching, soreness, dryness
what is the management of lichen sclerosis
dermovate (topical steroid 0.05%) long term for maintenance, can up to every day if symptoms are bad
what 3 factors make up the risk of malignancy index for ovarian cancer / ovarian cysts
menopause status
ca 125 level
USS findings
what tests should you do in patients with ovarian cysts
TVUSS
Ca 125
what tests should you do with all women aged under 45 with complex cyst (not functional)
AFP
BHCG
LDH
ca 125
management of simple 2-5cm ovarian cyst
nothing
management of ovarian cyst simple 5-7cm
monitor with yearly USS
management of ovarian cysts over 7cm
refer to gynae for further investigation eg laparoscopy or mri
when is a total hysterectomy with bilateral salpingoophrectomy preferred in women with ovarian cysts
when it is a complex cyst and under age 45 eg serous cyst, mucinous cyst, dermoid cyst
red flag symptoms for ovarian cysts to ask about that may indicate malignancy
weight loss bloating ascites early satiety change in bladder or bowel habits palpable mass
risk factors to ask about in ovarian cysts that increase risk of malignancy
BRCA 1 + 2 status, family history, HRT
name 4 types of ovarian cysts that may turn malignant
serous
mucinous
dermoid teratomas
sex cell stromal
name the 2 functional ovarian cyst types
follicular and corpus luteum
which type of ovarian cyst is likely to be very large
mucinous
which type of cyst contains hair, teeth, skin and bone cells
dermoid
which medication is used to shrink the size of fibroids whilst waiting for surgery
GnRH analogues eg goserelin in the short term
what is the most common complication following a surgical termination of pregnancy
infection!
others: retained pregnancy tissue, failure, trauma to cervix, haemorrhage,
what is gillick competence
children under the age of 16 can consent to their own treatment if they are deemed to have enough intelligence and understanding of what is involved in the treatment., they must have capacity to consent so must be able to retain, weigh up, communicate and understand the treatment and other options available to them.
a child cannot refuse treatment if it will lead to death or serious harm
when assesing gillick competency you should consider whether there are any safeguarding concerns - a child cannot be gillick competent if you think they are being pressured by someone else to make a decision
when can you start re taking the progesterone only pill post-partum
immediately regardless of breastfeeding status
when do women need to start contraception after giving birth
day 21
when can you start COCP after birth
after 6 weeks - 6 months if breastfeeding
never start before 6 weeks bc reduces lactation for breast feeding and increases VTE risk post partum
when can the mirena coil be inserted post partum
after 48 hours
if not started on day 1-5of menstrual cycle, how long does POP take to be effective
2 days
if not started on day 1-5 of menstrual cycle how long does COCP take to be effective
7 days
management of premenstrual syndrome
a new generation COCP taken continuously
name 3 functions of the placenta
to remove fetal waste
to provide fetus with nutrients
produces steroid and hormones that maintain pregnancy
barrier against infection
where is the basal plate located
in the placenta next to the maternal side
where is the chorionic plate located
in the placenta on the fetal side
what is the decidual reaction
the reaction that prepares the body after implantation and the changes in the uterus that occurs during implantation
the endometrium becomes increasingly vascular, has increased secretory activity and uterine glands dilate.
what is the function of the decidua
forms the basal plate of the placenta
allows implantation of the blastocyts
supplies nutrients early on
describe the maturation of oocytes and when each stage occurs
oocytes mature into primary oocytes with 46 X
the under goes 1st meiotic division but doesn’t actually complete until puberty
at puberty the follicle matures and 1st meiotic division completes
then secondary oocyte (23, X) forms when the primary oocyte splits into 2nd oocyte and polar body
if fertalisation occurs after ovulation the 2nd meitoic division completes and the female pronucleus is formed as 23, x and a second polar body is formed
the female pronucleus can now join with the male pronucleus to start forming an embryo
how many chromosomes are in a primary oocyte
46, x
how many chromosomes are in a secondary oocyte
23, x
describe the process of fertalisation
sperm meets oocyte
acrosomal cap of the sperm head releases hyaluronase to eat the corona radiata to be able to penetrate the zona pellucida
once zona pellucida has been penetrated it hardens so no other sperm can penetrate
completion of 2nd meiotic division occurs shortly after
male and female pro nuclei then restore original diploid number of chromosomes
zygote is formed containing mum and dads genetic info
which hormone is responsible for ovulation
surge in LH, FSH stimulates follicles
which hormone is responsible for the decidual reaction
progesterone
what is the normal amniotic fluid volume at 12 weeks
50ml
what is the normal amniotic fluid volume at 36-38 weeks
1L
cause of green amniotic fluid
meconium - a sign of fetal distress
cause of gold amniotic fluid
rhesus incompatibility indicating haemolysis of fetal RBC’s
what colour should amniotic fluid be
clear
cause of tobacco coloured amniotic fluid
intra uterine death
what is amniotic fluid made up of
water, glucose, protein, urea, electrolytes, lipids
name 4 functions of amniotic fluid
to protect fetus from shock
to maintain fetal temp
allows for growth of and free movement of fetus
flushes the birth canal in first stage of labour (ROM) with anti microbial effects
when is the cut off date for pregnancy viability
24 weeks = viable pregnany so bleeding before that = misscarriage bleeding after that = antepartum bleed
explain gravida
total number of pregnancies including past and current
explain parity
total number of pregnancies that have gone past viable stage (24 weeks) so including still births but not including miscarriage
what is nullipara
first time giving birth
what is a primagravida
pregnant for first time
what is a multipara
more than 2 pregnancies made it past 24 weeks
what is a multigravida
previously been pregnant
how do you calculate the period of gestation in the early stages vs later stages
early stages = days from last day of last menstrual period
later stages = days from expected due date
how do you determine the station of the fetus
the lowest bony part of the body eg feet if breach or skull if head compared to the level of the ischial spines
what is engagement
when the widest part of the foetus has passed through the pevlis
what is attitude
whether the foetus is flexed or deflexed - flexed is easier to deliver
describe the first stage of labour
when contractions become painful and more regular
start off as irregular and far apart (5-10 mins) this latent phase usually lasts 6 hours to 3 days
patient advised to stay at home during this phase
the cervic begins to efface and cervical dilation begins up to 4 cm
active labour begins after cervix is dilated by 4cm
regular painful and more frequent contractions
fetal head descends into pelvis
cervix dilated by 1cm per hour until 9-10cm when head should be engaged and woman feels urge to push
how many cm does it need to be to be classed as active labour
4cm
how fast does the cervix dilate in nulliparous women
2cm per hour
how fast does the cervix dilate in multiparous women
1cm per hour
when is the first stage of labour classed as failure to progress and how do you manage it
16 hours
how do you manage the 1st stage of active labour
temp and bp every 2 hours
monitor strength and frequency of contractions
monitor fetal heart rate - should be between 120-160 bpm
doppler ultrasound transducer
vaginal examination every 4 hours