O&G Flashcards
Describe what happens to insulin in pregnancy
Release is increased
Resistance increases
Maternal insulin resistance
What Fetal compound antagonises maternal insulin
Fetal hPL
What is endovascular remodelling seen in the maternal uterus
spiral arteries Goes from low bore high resistance ->high bore low resistance
What can a mother do to optimise her foetus’s health?
Not smoke. Folic acid Stop teratogenic meds Don’t eat undercooked meats- listeria Avoid oily fish - pollutants and mercury Avoid liver - high vit A Maternal rubella vaccination Good control of preexisting med conditions
What medications are teratogenic
Valporate Warfarin Retinoids Trimethoprim ACEi Methotrexate Co amox
For what reasons might a woman need higher doses of folic acid?
Diabetes
Previous child/ relative with neural tube defects
On anticonvulsants
Up to what age is a neonate
Up to 28days
What is preterm
<37w
What is considered term
37-41w
What is considered low birthweight
<2500g
What weight is very low birthweight
<1500g
What weight is extremely low birth weight
<1000g
What is SGA?
Below 10th centile for gestation
What is large for gestational age?
> 90th centile for gestational age
What risks do maternal obesity carry
Miscarriage
Gestational diabetes
Pregnancy induced hypertension
Benefits of neonatal screening
Reassurance when it’s fine
Counselling
Early termination
Interventions in utero
What are the types of antenatal screening test?
Standard= maternal serum screen, detailed USS Advanced = chorionic villus sampling, fetal blood test, amniocentesis
Benefits of glucocorticoids before preterm delivery
Matures lungs - less RDS
Less risk of IVH
How many hours do steroids need to be given before birth
At least 24hours
When might a pregnant mother be given digoxin?
What the foetus is experiencing supraventricular tachyC
What is screened for in a maternal antenatal blood test ?
Blood group HIV Syphilis HepB Rubella Neural tube defects- raised alphafetoprotein Congenital abnormalities
Complications of oligohydraminos
IUGR
Facial and limb deformities - potters syndrome
Pulmonary hypoplasia
What information can be obtained in antenatal USS
Gestation of foetus
Growth of foetus
Anatomical abnormalities
Oligo/polyhydraminos
What is the Arnold chari malformation ?
Lemon shaped skull associated with spina bifida
Complications of preeclampsia to the foetus
Eclampsia-
Placental insufficiency
Growth restriction
Two causes of IUGR
Oligohydraminos
Placental insufficiency
Give the names of three drugs to treat OAB/urge incontinence
Oxybutanin
Tolterodine
Mirabegran
What investigations should you do for incontenence
Bladder diary
PV exam
Urine dip
Urodynamics
What is the medical treatment for stress incontinence
Duloxitine
Symptoms of cervical Ca
Purulent discharge
Post coital bleeding
IMB
In what area is cervical Ca most likely to occur and what cells would you find here
In the transition zone
Endocervix and ectocervix meet
What is the classic symptom in ovarian CA
IBS symps
What is the red flag for endometrial Ca
PMB
What are the risk factors for endometrial Ca
Nulliparity
HRT
Tamoxifen
Obesity
What is the most common gynae CA
Endometrial
What age spikes is cervical most common at
30s and 80s
HPV risk factors
Early SI
Multiple partners
OCP
smoking
Risk factors for ovarian CA
FHX Brca1/2 Early menarche Late menopause Nulliparity
What type of CA is endometrial CA
Adenocarcinoma
What type of CA is ovarian CA
Epithelial
What type of ultrasound is suggested in investigating ovarian Ca
Pelvic USS
What are the investigations you would do in endometrial Ca
Histeroscopy
TVuss
Biopsy
What is the treatment for stage 1 cervical Ca
Cone biopsy
Which cells is the follicle does oestrogen come from
Granulosa cells
Which cells in the follicle does FSH act on
Granulosa
What 3 hormones does the corpus luteum secrete ?
Oe
P
Inhibit
The CL secretes inhibin what is the role of this
To suppress FSH as we don’t want another follicle growing yet
What is the role of FSH
To stimulate follicular growth
What is the role of LH
Ovulation.
Maintain CL
Where is beta-HCG produced from and where does it act
Produced from and acts on the Corpus luteum
What is the role of oestrogen in the menstrual cycle
Endometrial growth
At low concs suppress LH and FSH
At high concs cause LH surge
Which hormone is prominent in the first half of the menstrual cycle
Oestrogen
Which hormone is dominant in the second half of the menstrual cycle
Progesterone
What is the role of progesterone
To maintain endometrial lining and promote secretory changes
Where are LH and FSH secreted from
Ant pit
Where is the ovary would you find the follicles
In the cortex
How does the admin of exogenous progesterone act as contraception
It maintains the secondary endometrium
How does the administration of exogenous oestrogen act as contraception
Steady low levels of oestrogen prevent ovulation through suppression of LH and FSH
What is the relationship between oestrogen and FSH
As oestrogen increases (from the follicle) FSH decreases
How does the fertilised egg prevent menstruation
It produces bhcg which acts on itself to keep producing progesterone which maintains endometrium
What are the 3 WHO causes of anovulation
Hypogonadotrophic hypogonasim inc kallmanns and FHA
- PCOS
- primary ovarian insufficiency
What are the 3 causes of hyperprolactineamia resulting in anovulation
Hypothyroidism
Androgen secreting Tumour
Psychotropic drugs
What medication would you use for hyperprolactinaemia
Cabergoline (dopamine agonist)
What does prolactin inhibit the secretion of
GnRH
What inhibits the secretion of prolactin
Dopamine
Where might you get referee pain in ectopic pregnancy
Shoulder tip pain.
What finding might you see in TVUSS in ?ectopic
Excess fluid in peritoneal cavity
What are the presenting features of ectopic pregnancy
Abdo pain
Amennorhoea
+/- bleeding
Where is the most likely location for an ectopic
Ampulla
RFs for ectopics
Previous ectopic PID Gynae surgery IUD IVF Smoking
What is the management of someone presenting to hospital with ?ectopics
Check they are HD stable
Is the bHCG doubling every two days
Methotrexate
Salpingectomy / salpingotomy
What investigations should you do in ?PCOS
TVUSS
GTT
Bloods - testosterone, LH, FSH, Oe, prolactin
What is the TVUSS result in PCOS
Enlarged ovary with 12+ follicles on it
At how many weeks does a person with an ectopic usually present to medical services
6-8w
Differentials for ectopic
Ovarian torsion
Appendicitis
Miscarriage
What might you differentials be for someone who is tender on bimanual examination
PID
Endometriosis
What might your differentials be for someone with cervical motion tenderness
Ectopic
PID
What is a large uterus on palpation suggestive of?
Fibroids
What investigations would you do in someone with chronic pelvic pain
MSU Swabs- HVS, ECS Laparoscopy - endometriosis TVUSS-fibroids MRI- adenomyosis Bloods- TFT, acute p reactants, LFT
Where are endometrial tissue deposits most commonly found
Uterosacral ligaments
Pouch of Douglas
What is the proper name for the pouch of Douglas
Rectouterine pouch
Treatment of endometriosis
NSAIDs Tranexamic acid COCP GnRH analogues Diathermy of lesions Hysterectomy
What are the two characteristic features of endometriosis
Sub fertility
Cyclical abdo pain
What is the typical age of a patient presenting with endometriosis
Young female
As oestrogen dependent
Presents when trying for a baby
What are the three theoretical causes of endometriosis
Retrograde mestruation - most common cause
Metaplastic theory
Blood/lymphatic dissemination theory
Explain how GnRH analogues work in tx endometriosis
GnRH sits in R causing release of LH &FSH
When they are being released they cannot be synthesised
The longer the R is occupied for there is down regulation
Therefore initial worsening of symps before artificial menopause
What other treatment do you need to give with GnRH in endometriosis
HRT- add back therapy
Give 3 aims of treatment in endometriosis
To reduce pain
Stop progression of implants
Address sub fertility
What two radiological investigations would you do in adenomyosis
TVUSS
MRI
Palpation on a patient with adenomyosis would give you what finding
Tender uterus
What is adenomyosis
Endometrial deposits within the myometrium
What is the treatment for adenomyosis
Same as endometriosis but without ablation
What age group would you see adenomyosis in?
40ish (older premenopausal women)
Name two gynaecological pathologies that are oestrogen drive
Endometriosis
Fibroids
What are the main complications of a fibroid
Sub fertility
Red degeneration
Tortion
Miscarriage
What is a fibroid
A benign tumour of myometrium
What are the main symps of fibroids
Depends on size and location
Sub fertility
Menorrhagia
Pressing on structures
What is the first line treatment for symptom management with fibroids
LNG-IUS (marina )
What problems may arise with fibroids in pregnancy
Miscarriage Premature delivery Malpresentation/ lie Obstruct delivery PPH
What is an ovarian cyst
Fluid filled pouch
Complications of ovarian cysts
Rupture- commonly after intercourse
Haemorrhage
Tortion
What are the three types of functional ovarian cyst
- follicular - dominant follicle that fails to rupture
- corpus luteal cyst- didn’t dissolve
- theca lutein cysts - over stim of HCG in preg
What are the commonest ovarian tumours in young women
Ovarian teratomas
What are the two classes of ovarian cyst
Functional
neoplastic
What are the features of a neoplastic ovarian cyst
Over 10cm and irregular boarders
Management of ovarian cysts
W&w
NSAIDs
Oophrectomy
What is pelvic congestion syndrome
Incompetent pelvic veins post pregnancy
When is pelvic congestion syndrome worse ?
After intercourse
When have been standing up for a long time
investigations for pelvic congestion syndrome
Tvuss
MRI venogram
What is the treatment for pelvic congestion syndrome
Transcatheter vein embolism
Fever Dyspareunia Cervical motion tenderness Purulent discharge Points to what diagnosis
PID
What investigations would you do ?PID
Swabs - HV , EC NAAT Bloods - CRP USS 4 complications Laparoscopy as last resort
Treatment for PID
IM ceftriaxone
100mg doxycycline
400mg metronidazole
Complications of PID
- Hydrosalpinx from adhesions
- Abscesses from pus- tubo- ovarian abscess is life threatening if ruptures
- Ectopic pregtd
- sub fertility
- fitz Hugh Curtis syndrome
What is fitz Hugh Curtis syndrome
Inflammation from PID spreads to Glissons capsule around the liver = RUQ pain
What complication of pregnancy might China mans shuffle indicate?
Obstetric chloestasis
What type of anaemia In pregnancy would present as macrocytic megaloblastic?
Folate deficiency anaemia
What type of anaemia In pregnancy would present as microcytic
Fe deficient (TICS- Thalassaemia, chronic disease, sideroblastic)
What happens to tidal volume in pregnancy
Decreases
What happens to CO in pregnancy
Increases due to SV increasing
What are considered high risk cardiac lesions in pregnancy
Aortic stenosis
Coarctation
Prosthetic valves
Cyanosis
What are the maternal complications of diabetes in pregnancy
DKA
Hypoglycaemia- common
Progression of retinopathy
PreE
Complications of maternal diabetes on the foetus
Macrosomia Hyperinsulinaemia Neonatal hypoglycaemia Still birth Resp distress
What diabetic medications can’t you use in pregnancy
Sulphonyl ureas
What effect does pregnancy have on renal function
Increases GFR , 50% increase in renal blood flow
What effects could CKD have on the pregnancy
PreE
Severe hypertension
Growth restrictions
Prem delivery/ still birth/ caesarean
What is the risk to the foetus with a maternal seizure ?
Hypoxia
How would you manage epilepsy in preg
High dose folic acid
Make sure antiepileptics aren’t teratogenic
Regular checkups
Delivery Plan
What can you give for VTE in preg
LMWH
Not warfarin
What investigations would you do in a pregnant woman who is SOB and has chest pain
CTPA
How would you manage hydatidform mole (GTD)
ERPC+ serial bHCG
What interventions can you give during the first stage of labour
Membrane sweep
Vaginal PG pessary
Synt
What are the 6 stages of delivery
Decent Engagement Flexion IR Extension Restitution/ ER Expulsion
When does stage 2 of labour begin?
With full dilation and contractions every 2-5mins
What is the maximum cervical dilation reached in the latent phase
4cm
What fetal attitude do we want during labour
Suboccipital bregmatic
What diameter is the pelvic cavity
10.5cm
What is the diameter of the suboccipital bregmatic presentation
9.5cm
The pelvic outlet is widest in what plane
Anteroposteriorly
How much flexion do we want for a suboccipitalbregmatic presentation
Well flexed
And extended head will give what presentation
Brow or face
What is the biparietal diameter
9.5 cm
What intervention will be required in cephalopelvic disproportion
C section
What factors effect the passage (pelvic cavity)
Nutrition- vit D, Ca, rickets, osteomalacia Abnormal gait- pelvic distortion Trauma - fractures Soft tissue abnormalities Spinal abnormalities
Types of breech presentation + descriptions
Frank- buttocks presents with legs extended
Complete- legs are flexed so feet present next to buttocks
Footling- foot below buttocks
Which is the most common breech presentation ?
Footling
What are the causes of breech presentation
Idiopathic Placenta previa Polyhydraminos Prematurity Pelvic abnormalities Grand multiparty
Causes of foetal tachyC = >160
Hyperthyroidism
Hypoxia
Chorioamnitis
Anaemia
Cause of foetal bradyC
Hypoxia
What range to you want variability to be in
5-25 from baseline HR
What is an acceptable baseline HR for a foetus
110-160
What are the foetal signs of hyperthyroidism
Goitre
TachyC
What are the neonatal signs of hyperthyroidism
Irritable Diarrhoea Wt loss TachyC Exophthalmos
How does the foetus get hyperthyroidism from the mum
TSHR abs cross the placenta
Treatment for neonatal hyperthyroidism
Carbimazole
What is the classic risk factor for someone to have placenta accreta
Placenta previa and c section
What should the birth plan for someone with placenta previa or placenta accreta look like
Consultant obstetrician and anaesthetist there
UTI bed available
Blood products on site
Consent re potential interventions I.e. hysterectomy
What is considered a low birth weight?
<2.5kg
What is considered a very low birthweight
Less than 1.5kg
What is considered an extremely low birth weight
<1kg
What complications might a macrosomic infant have
Transient hypoG secondary to hyperinsulinaemia
Birth trauma
RDS
Polycythemia
What is the treatment for polycythemia in macrosomia
Tx- partial exchange transfusion.
What is the most common congenital infection and what is the treatment ?
CMV
Gancyclovir
What are the potential complications of CMV infection in a baby
Sensorineural hearing loss
Hepatosplenomegally
Cerebral palsy
Epilepsy
What are the potential complications of rubella as a congenital infection
Deafness
Cataracts
CHD
What are the potential complications of toxoplasmosis in the neonate
Retinopathy
Cerebral calcifications
Hydrocephalus
Name a congenital infection that can cause hydrops
B19
What two congenital infections should you not breast feed with
HepC
HIV
What are the mock common pathogens to cause neonatal sepsis
GBS.
Listeria
E. coli
What factors should indicate the need to treat for group B strep intrapartum
Prolonged rupture of membranes
Maternal fever
What is the intrapartum treatment for GBS
Penicillin
What does foetal distress mean?
Hypoxia (ph might be low)
What should you never do in a bleeding pregnant woman
PV exam until placenta previa has been excluded
What investigations would you want to do in placenta previa
FBC
Cross match
CTG
USS/ MRI
Painless bleeding at ROM + severe foetal distress points to what diagnosis
Vasa previa
What is vasa previa
Foetal blood vessels run in the membranes of the uterus in front of the presenting part
Give 5 causes of prepartum/ antepartum haemorrhage
Uterine rupture Vasa previa Placenta previa Placental abruption Gynae cause
Continuously painful tender uterus +/- bleeding =?
Placental abruption
What are the complications of placental abruption
Shock
Renal failure
DIC
PPH
How would you manage placental abruption?
Assess mum - FBC, U&E, crosshatch, monitor urine output hourly if foetus stable
Resus with fluids as required
Assess foetus w/ CTG- deliver if distressed >37w
Transfuse
What is an antepartum haemorrhage
Bleeding after 24w (>50ml)
What should you do with a placental abruption with no foetal distress and <37w
Monitor
What should you do in a placental abruption >37w with no foetal distress
IOL via aminotomy
What should you do if there is placental abruption with foetal distress
Emergency Csection
What investigations should you do for placenta accreta
MRI
Complications after APH
PPH DIC Renal failure Transfusion Premature labour and delivery Fetal morbidity and mortality
When is C section indicated in herpes simplex
If primary attack is In 6w of delivery
What is the treatment for a neonate exposed to HSV
Acyclovir
What is the definition of primary PPH
Blood loss over >500ml w/in 24hours (1000ml if Csection)
What is the most common cause of PPH
Uterine tone- fails to contract properly
Why might the uterus fail to contract properly
It is atonic
There is retained placenta
What is a major PPH
Blood loss over 1000ml
When would you stop antenatal thromboprophylaxis
12 hours before delivery
What are two risk factors for uterine atony
Prolonged labour
Overstretched uterus I.e. multiparity/ polyH
What should be the management of PPH >1500ml
Activate MOH protocol
Fresh frozen plasma
Tranexamic acid +/-
If uterine atony persists after oxytocin what should the next step be
Inject PGF2a into myometrium
+/- tranexamic acid
Bleeding from placental bed with a well contracted uterus - what is the tx
Rusch balloon
What are the surgical options to tx PPH
Brace suture
Uterine artery embolism
Hysterectomy
What is the definition of secondary PPH
Excessive blood loss 24hrs-6w
What is the first line tx In an atonic uterus
Bimanual compression
How do you prevent /tx coagulopathy problems in PPH
Fresh frozen plasma
+/- cryoprecipitate
Common causes of secondary PPH
Retained placenta
Infection
Endometriosis
Management of secondary PPH
Swabs
Pelvic USS for retained placenta - surgical evaction of retained placenta (SERP)
Abx
Uterotonics = misoprostel, syntocin
What is the normal weight range at delivery In kg
2.5-4.5kg
What is the normal weight range at delivery in lbs
5.5-10lb
How much does the average baby weigh
7.5lb = 3.5kg
What are the complications of shoulder dystocia
Brachial plexus damage Foetal hypoxia- fits/ cerebral palsy PPH Tears Psychological
Management of shoulder dystocia
HELPERR
Call for help Evaluate for episiotomy Legs in mc Roberts position Suprapubic pressure Enter pelvis Rotational manoeuvres Remove posterior arm
Risk factors for cord prolapse
Polyhydraminos Prematurity Long cord Malpresentation SROM
Causes of sudden deceleration in fetal HR in labour
Vasa previa
Cord prolapse
What is the management of cord prolapse
Fill bladder or push back inside / trendelenburgs position to elevate pressure until Csection
Definition of severe preE
140/90+ proteinuria \+1 of: “HELLP” Headache Elevated liver enzymes Liver tenderness Low platelets Papilodema / visual changes \+ clonus
What is the cure for severe preE
Spont Delivery
/ IOL
Treatment of severe PreE
Manage bp- labetalol , nifedipine If hyperreflexia- MgSO4 Correct any coag issues Monitor urine output Monitor foetal wellbeing
How do you treat eclampsia in pre-E
MgSO4 4mg In 5mins+ IV 1g/hour
Restrict fluids and monitor urine output
What is a differential for post partum depression
Post partum thyroiditis
What is medication used for depressive illness in pregnancy
Fluoxetine (SSRI)
When does puerperal psychosis normally occur
4 days post delivery
What is the management of puerperal psychosis
Admission
Major tranquillisers
When would placental location be highlighted
20w scan
What should you start someone on with RFs for PreE
Aspirin 75mg day
What are the High risk indications for starting low does aspirin
PreE in a previous pregnancy Preexisting hypertension CKD Diabetic AI disease (SLE)
What is the criteria for PrE
Bp over 140/90
+ proteinuria >0.3
Past 20w gestation
What is the cut off gestation for early vs late preE?
34w
What are the consequences for early Pre E
IUGR
What can you give as protection from eclampsia
MgSO4
Shay do you need to monitor for when giving MgSO4
Mg toxicity
4hourly reflexes,RR, BP, pulse
What is the pathophysiology as to why PreE develops
Placental origin
Fails to turn to a low resistance system
Secrete proteins that cause vasoC
Kidneys retain NaCl
What are the complications of PreE
Still birth IUGR Placental abruption Eclampsia DIC AKI Liver problems - HELLP syndrome Cerebral haemorrhage Pulmonary odema
When do you need to be cautious about giving MgSO4
In renal failure as is excreted by the kidneys
Management of mild preE
2x weekly FBC, U&E, LFT
Management of moderate PreE
Start on labetalol/ nifedipine
Monitor bloods 3x weekly
Management of Severe preE
Should be on labetalol
3x weekly bloods
5x daily bp
Management of eclampsia
- ABCDE
- Lie in L lateral position
- MgSO4 stat
- MgSO4 IV
- Labetalol IV
- :fluid restriction, monitor output
- Deliver by Csection when mum is stable
What colour discharge do you get in gonorrhoea
Yellow green
What symptoms do you get In syphilis
Chancre
Neuro syphilis
Rash
Thoracic AA
Treatment of chlymidia
Doxycycline 100mg 7d
Erythromycin in preg
Tx of gonorrhoea
Ceftriaxone once 1G
Tx of trichomonas vaginalis
Metranidazole
Female findings in trichamonas vaginalis
Strawberry cervix
PH>4.5
Investigations in chlamydia
First void urine In males
Swan females
NAAT
Investigations in gonorrhoea
Swabs NAAT
Investigations in syphilis
Bloods
Swab- motile spirochetes
What sort of discharge would you have in trichamos vaginalis
Frothy
Tx In syphilis
IM penicillin
How long are you covered for contraceptionally post delivery
21d if not b feeding
6mnths if solely bfeeding
How long after delivery can you start CHC
6w if not b feeding
6m if breastfeeding
When can you start the POP/ implant / injectable post delivery
Any time
When can you have a device/ system fitted post delivery
<48hours
>4w