Obgyn Flashcards
Which ovarian tumour is associated with the development of endometrial hyperplasia?
Granulosa cell tumours
Endometrial hyperplasia definition
abnormal proliferation of endometrium in excess of normal proliferation of menstrual cycle
features of endometrial hyperplasia
abnormal vaginal bleeding eg. intermenstrual
Mx endometrial hyperplasia
simple w/o atypia - high dose progestogens, repeat sample 3/4 months (Levonorgestrel IUS)
Atypia - hysterectomy
PPH blood loss
> 500mls
4 T’s PPH
Tone, Trauma, Tissue, Thrombin
In case of PPH caused by uterine atony, what is most appropriate mx
Uterine massage
Continuous CTG monitoring if:
?chorioamniocentesis/sepsis/fever HTN >160/110 Oxytocin use significant meconium fresh vaginal bleed developing during labour
Chickenpox exposure during pregnancy
If unsure/no previous exposure, check varicella Abs
If not immune -> varicella immunoglobulin (<10 days after exposure, any point in preg) <20/40
Primary amenorrhoea in woman with normal secondary sexual characteristics - action?
refer to gynae - likely mechanical obstruction
causes primary amenorrhoea
Turner’s syndrome
Testicular feminisation
congenital adrenal hyperplasia
congenital malformations of GU tract (imperforate hymen
Primary amenorrhoea definition
failure to start menses by 16
Secondary amenorrhoea definition
cessation of established, regular menstruation >6/12
causes secondary amenorrhoea
pregnancy hypothalamic amenorrhoea (stress, excess exercise) PCOS hyperprolactinaemia premature ovarian failure Thyrotoxicosis (hypothyroidism) Sheehan's Asherman's (IU adhesions)
Amenorrhoea Ix
bhCG gonadotrophins prolactin androgen levels oestradiol TFTs
amenorrhoea with low gonadotrophin levels
hypothalamic cause
amenorrhoea with high gonadotrophin levels
Ovarian problem (premature ovarian failure)
Can instrumental delivery be used before full dilation of cervix?
No
contraindications to prostaglandins and oxytocin
Foetal distress
Post menopausal bleeding Ix
Transvaginal USS - endometrial thickness
pipelle biopsy - sample endometrium - dx endometrial cancer
hysteroscopy with direct sampling (dilation+curettage)
definitive tx for Bartholin cyst
Marsupialisation procedure
Endometrial carcinoma stage 1/2 tx
Total abdominal hysterectomy with bilateral salpingo-oophrectomy
hormonal tx for endometrial carcinoma
Provera (medroxyprogesterone acetate) - progesterone - slows growth of malignant cells in endometrium
Tx stage 2b endometrial carcinoma
Wertheim’s radical hysterectomy (includes removal of lymph nodes)
Endometrial cancer risk factors
Post menopausal obesity nulliparity early menarche + late menopause unopposed oestrogen DM Tamoxifen PCOS
If post menopausal bleeding, what is dx until proven otherwise?
Endometrial cancer
What drug must be avoided in breastfeeding
Amiodarone (antiarrhythmic) aspirin Abx - ciprofloxacin, tetracycline, chloramphenicol, sulfonamides Li, Benzos Carbimazole MTX sulfonylureas cytotoxic drugs cocp
risk for women with PCOS undergoing IVF?
Ovarian hyperstimulation syndrome
pathophysiology ovarian hyperstimulation syndrome?
multiple luteinized cysts > high levels oestrogen/progesterone + vasoactive Vascular Endometrial Growth Factor > increased membrane permeability > loss fluid intravascular space
OHSS mild sx
abdo bloating, pain
OHSS moderate sx
+ n/v, USS evidence ascites
OHSS severe sx
+ clinical ascites, oliguria, haematocrit>45%, hypoproteinaemia
OHSS critical symptoms
+ thromboembolism, ARDS, anuria, tense ascites
PID definition
Inflammation and inflammation pelvic organs: uterus, FTs, ovaries, surrounding peritoneum
PID causes
Ascending infection from endocervix Chlamydia trachomatis - the most common cause Neisseria gonorrhoeae Mycoplasma genitalium Mycoplasma hominis
PID symptoms
lower abdo pain, fever deep dyspareunia dysuria, menstrual irregularities smelly vag/cervical discharge cerevical excitation perihepatitis - RUQ pain
PID Ix
Screen for chlamydia, gonorrhoea
Mx PID
pain relief - paracetamol/ibuprofen
Abx - 1 x ceftriaxone IM, doxycycline, metronidazole 14 days
? removal of IUS
1st degree tear
within vaginal mucosa
2nd degree tear
into subcutaneous tissue
3rd degree tear
laceration extends into external anal sphincter
4th degree tear
laceration extends through external anal sphincter into rectal mucosa
Perineal tears: 3rd degree subset
3a: less than 50% of External Anal Sphincter thickness torn
3b: more than 50% of EAS thickness torn
3c: IAS torn
risk factors for perineum tears
primigravida large babies precipitant labour shoulder dystocia forceps delivery
Which questionnaire is used for post-partum mental health?
Edinburgh Post-natal depression scale
What score or higher in Edinburgh PND scale indicates depression of varying severity
13
If missed POP but less than 3 hours late, what action needed?
Take missed pill now, no further action required
If missed POP > 3 hours, what should you do?
take missed pill as soon as possible, if more than 1 pill missed just take 1 pill
Take the next pill at the usual time which might mean taking 2 on the same day
Continue with rest of pack
Condoms given until reestablished 48hours
What cyst is sometimes referred to as a chocolate cyst due to it’s external appearance?
Endometriotic cyst
Commonest ovarian cancer
Serous Carcinoma
23yo female with recurrent UTI. USS shows 3cm ‘simple cyst’ on L ovary. she is asymptomatic. What type of cyst?
Follicular cyst
commonest type of ovarian cyst
Follicular cyst
What causes follicular cyst?
non-rupture of the dominant follicle or failure of atresia in non-dominant follicle
Commonly regress after several menstrual cycles
What causes a corpus luteum cyst and how would it commonly present?
In cycle if pregnancy does not occur, CL usually breaks down, if this fails then CL fills with blood/fluid
Presents with intraperitoneal bleeding
What is a dermoid cyst?
Mature cystic teratoma - lined with epithelial tissue and may contain skin appendages, hair and teeth
most common benign ovarian tumour in woman <30
Bilateral in 10-20%
Usually asymptomatic.
Torsion is more likely than with other ovarian tumours
What type of ovarian cyst is a benign germ cell tumour?
Dermoid cyst
which ovarian tumours are benign epithelial tumours?
serous cystadenoma
mucinous cystadenoma
Serous cystadenoma
commonest benign epithelial tumours
bilateral in 20%
mucinous cystadenoma
typically large, may become massive
rupture > pseudomyxoma peritonei
First line pharma mx to stop bleeding in PPH
IV syntocinon
Other pharma mx of PPH
IV ergometrine
IM carboprost
Sx intervention for PPH
First line IU balloon tamponade
Then b-lynch suture
ligation of uterine arteries/int illiac arteries
Finally hysterectomy
second screen for anaemia and atypical red cell alloantibodies
28 weeks
Nuchal scan when?
11-13+6 weeks
Urine culture to detect asymptomatic bacteriuria
8-12 weeks
When is the booking visit?
8-12 weeks
what does the booking visit entail?
General info - diet, alcohol, smoking, folic acid, vit D, antenatal classes
BP, urine dipstick, BMI
FBC - blood group, Rh status, RC alloabs, Hbopathies
HepB, syphilis, rubella
HIV offered to all women
urine culture - asx bactiuria
When is the early scan to confirm dates/screen for multiple pregnancy?
10-13.6 weeks
Which other screening occurs 11-13.6 weeks?
Down’s screening, Nuchal scan
When does the anomaly scan occur?
18-20.6 weeks
When are doses of prophylactic Anti-D given to Rh negative women?
28, 34 weeks
What happens at 28/40 antenatal care-wise?
Routine care: BP, urine dipstick, SFH
Second screen for anaemia and atypical red cell alloantibodies. If Hb < 10.5 g/dl consider iron
Children under what age are considered unable to consent for sexual intercourse?
13
If concerned about this, children’s services involvement
If had unprotected sex, when should STI tests be done?
2 and 12 weeks after
Mx women at high risk of pre-eclampsia
from 12 weeks on, take aspirin 75mg OD - birth
high risk of pre-eclampsia if:
HTN previous pregnancy
CKD
AI - SLE/antiphospholipid syndrome
1/2DM
Moderate gestational HTN first line tx:
Oral labetolol
Cervical screening age ranges in UK
25-64
25-49 how often is screening offered (cervical)
3 yearly
How often are women recalled for cervical screening in 50-64yos?
5 yearly
26yo nulliparous, HTN 155/110 39/40. +++ protein. Mx?
IV labetolol with target diastolic 80-100
In pre-eclampsia, what are target BPs?
systolic < 150
diastolic 80-100
women on COCP, with post-coital bleeding, what is common finding:
cervical ectropion
Cervical ectropion
ectocervix transformation zone
meeting of stratified squamous - coloumnar ep of cervical canal
caused by elevated estrogen levels
if troublesome cervical ectropion sx, tx?
Ablative tx
NICE guidelines on drinking in pregnancy?
0 units. Do not do it
If ectopic is located in a certain location there is increased risk of rupture. What is this location?
Isthmus
Methotrexate in those planning a pregnancy
Both men and women must stop 6 months before trying
What can RA patients take during pregnancy?
sulfasalazine and hydroxychloroquine are considered safe in pregnancy
When can NSAIDs be taken up until during pregnancy and what does their use after this increase the likelihood of?
32 weeks
risk early closure of ductus arteriosus
Placental abruption
painful vaginal bleeding
tense uterus
fetal heartbeat absent
woman in shock
placenta praevia
painless vaginal bleeding
When might you feel a woody hard uterus? Why?
Placental abruption
retroplacental blood tracks into the myometrium
Mx placental abruption
delivery when woman stable
What is there an increased risk of in placental abruption?
PPH
How will intrahepatic cholestasis of pregnancy present?
Pruritis
No rash
What will the bloods findings be of IHC of pregnancy be?
raised bilirubin
Mx of IHC of pregnancy?
ursodeoxycholic acid
LFTs weekly
deliver at 37/40 - induce
Cx of IHC of preg?
stillbirth increased risk
abdominal pain nausea & vomiting headache jaundice hypoglycaemia
are sx of?
Acute fatty liver of pregnancy
When does AFLP present?
3rd trimester-post birth
what are the investigation findings for AFLP?
ALT>500
Mx AFLP
supportive, definitive - delivery
which conditions may be exacerbated by AFLP during pregnancy?
Gilbert’s, Dubin-Johnson
HEELP
Haemolysis
Elevated Liver Enzymes
Low Platelets
what is the effect of pre-eclampsia on reflexes?
Brisk tendon reflexes
Which device is most effective form of emergency contraception and is not affected by BMI?
Copper IUD
28yo Indian woman, 18/40, increasing SOB, chest pain, coughing clear sputum. Apyrexial, 140/80. 130bpm. Sats 94% 15L O2. Mid diastolic murmur, bibasal creps. Mild pedal oedema. Suddenly deteriorates - respiratory arrest. CXR - whiteout both lungs
Mitral valve stenosis
(commonest cardiac abnormality of pregnant women)
(related to rheumatic heart disease - developing countries)
What are the complication risks of someone with Mitral valve stenosis in pregnancy?
AF
Rapid decompensation
Tx mitral valve stenosis pregnancy?
Balloon valvuloplasty
28yo, 30/40, sudden onset chest pain associated with LOC. 170/90, sats 15L o2 93%, 120bpm, apyrexial. Early diastolic murmur, occasional bibasal creptitations and mild peal oedema. ECG - ST elevation in leads II, III and aVF.
Aortic dissection
When is aortic dissection likely to present in pregnancy?
3rd trimester
What are CT disorders (Marfan’s, Ehlers-Danlos) associated with in pregnancy (cardiac)?
Aortic dissection
Common presenting features of aortic dissection in pregnancy?
Tearing chest pain, transient syncope
How to repair aortic dissection in <28/40
aortic repair with fetus kept in utero
Repair aortic dissection 28-32/40?
depends on fetal condition
Repair aortic dissection >32/40?
Primary cessarian section, with aortic repair at same operation
28yo, 18/40 pregnant, sudden onset chest pain. 150/70. 92% 15L o2. 130bpm. No murmurs and chest is clear. Signs of thrombophlebitis in L Leg
Pulmonary Embolism
How does PE classically present in pregnancy?
chest pain, hypoxia, clear chest on auscultation
How to confirm PE in pregnancy?
half dose scintigraphy - vent/perfusion CT chest (underlying lung disease)
Treatment of PE in pregnancy?
LMWH throughout pregnancy and 4-6 weeks post partum
Can you give warfarin in pregnancy?
No - contraindicated
8/40, abdo pain and vaginal bleeding. Tender RIF and suprapubic region. Speculum examination - open cervical os. USS confirms IU pregnancy.
Miscarriage
Ectopic risk factors
damage to tubes - salpingitis/surgery
previous ectopic
IVF
endometriosis
typical history of ectopic
6-8/40
lower abdo pain, constant, may be unilateral
vaginal bleeding after
where else might pain be referred to in ectopic?
shoulder tip
also pain on defectation/urination
painless vaginal bleeding before 24/40
os closed
threatened miscarriage
gestational sac with dead fetus pre 20/40
no expulsion yet
light vaginal bleeding/discharge
missed (delayed) miscarriage
blighted ovum/anembryonic pregnancy: definition
gestational sac >25mm no embryonic/fetal part can be seen
os is open
heavy bleeding with clots and pain
inevitable miscarriage
not all products of conception have been expelled
incomplete miscarriage - medical mx
pain over the pubic symphysis which radiates to groins and medial aspects of thighs
waddling gait
Symphysis pubis dysfunction
- ligament laxity increases in response to hormonal changes of pregnancy
Pre-eclampsia / HELLp syndrome abdo pain
typically in RUQ / epigastric
uterine rupture - when does it occur?
risk of it occuring?
presents?
normally during labour, also 3rd tri
previous CS
maternal shock, abdo pain, PV bleeding
where does appendicitis pain present during each trimester of pregnancy?
1 - RLQ
2 - umbilicus
3 - RUQ
what is a UTI during pregnancy associated with?
pre-term delivery and IUGR
What are some UKMEC4 risks (unacceptable) for COCP?
>35yo, >15 fags/day migraine with aura Hx thromboembolic disease/thrombogenic mutation Hx stroke/IHD breast-feeding<6/52 postpartum uncontrolled HTN current Breast cancer major surgery - prolonged immoblisiation
Some UKMEC3 (disadvantages outweigh the advantages) COCP?
>35, <15fags/day BMI>35 FHx thromboembolic disease 1st degree <45yo controlled HTN immobility BRCA1/2 carrier current gallbladder disease
which type of contraception associated with weight gain?
depo-provera injection
Placenta praevia is associated with low lying placenta - true/false?
True
What increased likelihood of low-lying placenta?
previous CS
multiparity
presentation of bleeding/no pain
How is placenta praevia diagnosed and graded?
USS - transvaginal
colour flow doppler
What should not be done before exluding placenta praevia?
Digital examination - could cause placenta to bleed
If low lying placenta on 16-20/40 scan, what is mx?
rescan at 34/40
limit activity/intercourse only IF they bleed
if present at 34/40 and grade 1/2 rescan every 2 weeks
If high presenting part/ abnormal lie at 37/40?
CS
If placenta praevia with bleeding - mx?
Admit
treat shock
cross-match blood
final USS 37/40
If final USS (placenta praevia) at 37/40 shows grades 3/4 - mx?
CS 37-38/40
If grade 1 placenta praevia - delivery method?
can be vaginal
28-yo g1p0 in labour for 11hrs; progressed through first stage without any issues. Midwife noted CTG abnormalities, able to palpate the umbilical cord. She immediately calls the obstetric registrar > checks CTG, variable decelerations. What is initial definitive mx for the cause of these decelerations?
place hand into vagina to elevate the presenting part
guidelines for mx cord prolapse
elevate presenting part - manually/filling bladder
Tocolysis - Terbutaline to prep for CS
define cord prolapse
umbilical cord descending ahead of the presenting part of fetus
risk factors cord prolapse
prematurity multiparity polyhydramnios twin pregnancy cephalopelvic disproportion abnormal presentations - breech/transverse lie placenta praevia long umbilical cord high fetal station
when do most cord prolapses occur?
ARM
During tocolysis and prep for CS, what position is mother encouraged to take?
All 4s
What are false labour pains common in 2/3 trimester known as?
Braxton-Hicks contractions
maternal cx post-term labour
increases need of forceps/CS
increases labour induction rates
neonatal cx post-term labour
reduced placental perfusion
oligohydramnios
what should be done with woman 41/40
induce
give her choice of expectant mx
uterine tenderness and brown foul smelling vaginal discharge along with fever, tachycardia in pregnant woman:
chorioamnionitis
if pregnant woman with dysuria, what should be an important differential?
Pyelonephritis
what is chorioamnionitis?
result of ascending bacterial infection into amniotic fluid/membranes/placenta
what is big risk with chorioamnionitis?
Prolonged premature ROM
Tx: chorioamnionitis?
prompt delivery of fetus, ?via CS
IV Abx
mastitis mx: no infection
continue breast feeding, simple analgesia, warm compress, send culture
mastitis mx: infection
continue breastfeeding +PO flucloxacillin
trimethoprim use in pregnancy: ok?
Not in first trimester!!
Folate antagonist
What terminology is used to describe the head in relation to the ischial spine?
Station
Heb B vaccine schedule in babies with high risk of developing HepB (mum has it)
If mum is surface antigen positive - 1st dose HepB vaccine + 0.5ml HBIG within 12 hours of birth
Further vaccination 1-2/12
Further vaccination 6/12
can HepB be transmitted via breast feeding?
no
what is vasa praevia?
fetal blood vessels cross/run near the os
vessels rupture when membranes rupture
>frank bleeding
classic triad of vasa praevia?
ROM
followed by painless bleeding
followed by fetal bradycardia
McRobert’s manouvre - used for?
Shoulder dystocia
What position must woman be in for McRobert’s manouvre?
suppine, hips flexed and abducted fully
continuous dribbling incontinence after prolonged labour in area of world with poor obstetrics care?
Vesicovaginal fistulae
from bldder to vagina
if large unilateral ovarian cyst in woman who wants to have children, what is next step of ix?
serum ca125, aFP, bHCG + elective cystectomy
tearing pain and haemodynamic compromise in woman of child bearing age:
Ectopic pregnancy
RUQ pain in PID cause?
perihepatic inflammation - Fitz Hugh Curtis Syndrome
mid cycle pain that subsides within 24-48hours - sharp onset, little systemic disturbance
Mittelschmerz
endometriosis
growth of ectopic endometrial tissue outside of the uterine cavity
clinical features of endometriosis?
chronic pelvic pain dysmenorrhoea - pain day before bleed deep dyspareunia subfertility urinary sx frozen pelvis
Endometriosis Ix:
Laparoscopy is gold standard
Mx: endometriosis
NSAID/paracetamol is 1st line sx relief
COCP/medroxyprogesterone acetate
GnRH analogues
whirlpool sign in gynae:
ruptured ovarian cyst
USS ovarian rupture:
whirlpool sign
enlarged ovary in midline with free pelvic fluid
no ovarian venous flow/reversed diastolic flow
when invite women who have been treated for CIN1/2/3 back for repeat cervical screening?
6 months time - test of cure
if CIN1, what mx?
Test for HPV - if positive colposcopy
if -ve - return to routine call
if positive again after 1 yr - smear again in 12/12
wheelchair user requests contraception - what is CI?
COCP - immobility -> clots
most effective form of contaception (excluding abstinence)?
Contracpetive implant (Nexplanon)
How long does nexplanon implant take to work?
7 days
how long does implant last?
3 years
does implant contain estrogen?
no
how long can missed pill be taken if miss desorgestrel?
prog only. 12 hour window
if patient on enzyme inducing drug, what contraception method should be used?
Cu IUD commonly (no hormones)
in terms of contraception, how many years amenorrhoea for woman <50?
2 years
in terms of contraception, how many years amenorrhoea for woman 50
1 year
if past / current hx breast cancer - contracpetive?
Cu IUD
COCP MOA:
inhibits ovulation
Implant MOA (etonogestrel):
inhibits ovulation
All progestogen-only methods of contraception are safe to use as contraception alongside sequential HRT.
Cu IUD MOA:
decreases sperm motility and survival
multiparity
multiple pregnancy
embryos are more likely to implant on a lower segment scar from previous caesarean section
risk factors for:
placenta praevia
what is Bishop’s score used for?
predict whether induction of labour will be required
under which Bishop’s score predicts that labour is unlikely to start without induction?
5 or less
What tx given to woman with Bishop score <5 to induce labour and what does it do?
Prostaglandin E2 PV to ripen cervix
when in pregnancy can women develop any of the pregnancy related causes of HTN?
after 20 weeks until 6 weeks postpartum
after what dates should delivery be offered to a woman with pre-eclampsia?
34 weeks
mx moderate-severe depression in post-natal period (with no hx severe depression): first line tx:
CBT
when are ADs used in mx of PND and which type first?
after CBT not engaged with
SSRIs
can woman taking SSRIs breastfeed?
on sertraline/paroxetine ok to
not fluoxetine
what is lochia?
bleeding that presents in the first two weeks following birth
red blood>dark brown blood>stops
Mx:lochia
reassure, discharge
if vol increased/smells bad/won’t stop seek help
how long might lochia last after birth?
6 weeks
In woman 32/40 PROM, how mx:
admit for >48hours, Abx (erythromycin), steroids (neonatal RDS)
when should deliver in woman who has PROMed
34 weeks
In woman with severe asthma, how manage her pre-eclampsia?
Nifedipine first line
most frequent cause of severe early-onset (< 7 days) infection in newborn infants.
Group B septicaemia
GBS in pregnancy mx:
IV benpen IP
cord prolapse mx:
- tocolytics
- correct to avoid compression
- patient on all 4s
- cord should not be pushed back into uterus
- immediate CS
what can you do first in mx of cord prolapse?
push presenting part of fetus back into uterus to avoid compression
hyperemesis gravidarum dx criteria triad:
5% pre-pregnancy weight loss
dehydration
electrolyte imbalance
Rh sensitising events in pregnancy:
- Ectopic pregnancy
- Evacuation of retained products of conception and molar pregnancy
- Vaginal bleeding < 12 weeks, only if painful, heavy or persistent
- Vaginal bleeding > 12 weeks
- Chorionic villus sampling and amniocentesis
- Antepartum haemorrhage
- Abdominal trauma
- External cephalic version
- Intra-uterine death
- Post-delivery (if baby is RhD-positive)
which test determines proportion of fetal RBCs present?
Kleinhauer test
what may an affected Rh+ve fetus show:
oedematous (hydrops fetalis, as liver devoted to RBC production albumin falls) jaundice, anaemia, hepatosplenomegaly heart failure kernicterus treatment: transfusions, UV phototherapy
Reduced urea, reduced creatinine, increased urinary protein loss
normal lab findings in pregnancy!
what can be used to classify the severity of nausea and vomiting in pregnancy?
The Pregnancy-Unique Quantification of Emesis (PUQE) score
hyperemesis gravidarum: mx
- antihistamines (promethazine, Cyclizine).
- ondansetron and metoclopramide
- ginger and P6 (wrist) acupressure: little evidence
- admission for IV hydration (severe)
hyperemesis gravidarum cx:
Wernicke's encephalopathy Mallory-Weiss tear central pontine myelinolysis acute tubular necrosis fetal: small for gestational age, pre-term birth
when may hyperemesis gravidarum persist until?
20 weeks
what is related to hyperemesis gravidarum?
bHCG levels
how often is the depot provera (medroxyprogesterone acetate) injecton given
every 12 weeks
urinary incontinence: urge incontinence: first line tx
bladder retraining
urinary incontinence: stress incontinence: first line tx
pelvic floor training
2nd: duloxetine