Pregnancy Complications - Miscarriage / Ectopic / Molar Flashcards
What is miscarriage and what is recurrent
Termination of pregnancy before 24 weeks gestation
Recurrent if >3 miscarriages
What are most common causes of bleeding <12 weeks
Miscarriage (7-13 weeks) Ectopic - earlier Molar Cervical lesions No cause
What do you do if pain or vaginal bleeding in pregnancy
Admit to assessment unit
What are categories of causes of miscarriage
Abnormal conception = most common Uterine abnormality Cervical incompetence Hormonal Maternal
What is abnormal conception
Chromosomal
- Trisomy / translocations etc.
Genetic
Surgical
Uterine abnormalities
Congenital - bisetpum Fibroids Utreine surgery Endometriosis PCOS
What can cause cervical incompetence
Primary = can’t hold
Secondary after dilatation or cone biopsy
Hormonal imbalances
Low progesterone in threatened
Thyroid abnormalities
Anti-phospholipid
What are maternal causes
Age Previous miscarriage Chronic - DM / SLE Smoking Alcohol Drugs Obesity Underweight Endocrine Infections VTE Invasive tests
What is a threatened miscarriage?
Bleeding from uterus <24 weeks No cervical dilatation Viable fetus Little pain Minimal bleeding / less period Conservative Rx - usually fine
What is an inevitable miscarriage
Bleeding <24 weeks Heavier Cervix has begin to dilate Periodic painful contractions Will go on to miscarry POC present in uterus on USS Irreversible
Incomplete miscarriage
Partial expulsion of POC
Os open
Heavy vaginal bleeding and pain
Risk of ascending infection
Complete miscarriage
Complete expulsion of POC
Cervix has closed and bleeding and pain has stopped
No gestational sac
Previous hx of bleeding and pain
Septic Miscarriage
Spread of infection into uterus / pelvis after incomplete
Febrile tender abdomen
Pain
Vaginal bleeding and offensive discharge
Septicaemia / DIC / shock
Missed miscarriage
No symptoms Light bleeding or discharge Cervix closed Fetus died but no attempt to expel Non viable pregnancy present in uterus Fetal pole with no heart seen No clear foetus in sac on USS
How is miscarriage Dx
USS to look for viable pregnancy
- no gestational sac
- no foetal pole / clear fetes in sac
- no HR
Speculum to look to see if os open or closed
Blood and urine culture in septic
What is diagnostic on USS
Absence foetal heart - not heard till 14 week
Crown rump >7
Sac >25
What else should you do in miscarriage / bleed
Pregnancy test + bHCG Pelvic and abdo exam - Excitation suggest ectopic Speculum to look for local lesions / is os open or closed Blood and urine culture in septic Endocervical swab X-match Rhesus if >12 weeks Anti-emetic and analgesia
What is suggestive of an ectopic
bHCG >1500
How do you treat threatened
Conservative
Fine if viable pregnancy seen on USS
Advice bleeding may continue but pregnancy fine
Come back if bleeding or pain worsens
How do you treat inevitable miscarriage
Conservative as contractions will expel
Surgical evacuation if heavy bleeding / haemodynamic unstable
Analgesia
Anti-D
What do you do for incomplete miscarriage
Evacuate
Misprostol vaginal pessary = encourage contraction
Advise to come back if no bleeding within 24 hours
Give with anti-emetic and pain relef
If fails
MVA under LA
ERPC under GA
What do you do for missed miscarriage
Wait for products to naturally expel
Or Vaginal prostaglandin - misoprostol
OR surgical as above
When is medical / surgical management preferred
Haemorrhage risk as risk of DIC Infection Previous adverse Haemodynamic unstable Patient choice
What do you do in septic
Broad spectrum Ax
Rapid fluid resus
Evacuate fetus
Co-amoxiclav - cover E.coli and strep
What are general measures
Physiological support
Anti-emetic
Analgesia
If >12 weeks and Rhesus -ve = Anti D
Complications of miscarriage
Haemodynamic instability = evacuate
Low BP / tachy / fever = suggest septic
Small risk of DIC