Miscarriage Flashcards
What is a miscarriage?
Loss of a pregnancy at less than 24 weeks gestation
What is an early miscarriage?
Loss in the first trimester (weeks 1-12)
What is a late miscarriage?
Loss between weeks 13-24
What are risk factors for miscarriage?
Maternal age >30-35 Previous miscarriage Obesity Maternal/paternal chromosomal abnormalities Smoking Uterine anomalies Antiphospholipid syndrome
What are the clinical features of miscarriage?
Vaginal bleeding
Abdominal cramping
What examinations are indicated in a potential miscarriage?
Assess for haemodynamic instability
Abdominal exam
Speculum exam
Bimanual examination
What are differential diagnoses for miscarriage?
Ectopic pregnancy
Hydatidiform mole
Cervical/uterine malignancy
Where are most patients with a suspected miscarriage investigated?
Early pregnancy units
What investigations are done for a suspected miscarriage?
Transvaginal ultrasound
- mean sac diameter
- > 25mm = failed pregnancy
- <25mm = repeat scan in 10-14 days
How are miscarriages managed conservatively?
Allow the products of conception to pass naturally
What are the advantages of conservative management?
Can remain at home
No medication side effects
What are the disadvantages of conservative management?
Unpredictable timing
Heavy bleeding + pain
Chance of needing further intervention
What is the follow up of conservative management?
Repeat scan in 2 weeks
Pregnancy test 3 weeks later
What is the medical management of miscarriage?
Use of vaginal misoprostol (prostaglandin analogue)
- stimulate cervical ripening
- stimulate myometrial contractions
Usually preceded by mifepristone 24-48 hours before
What are the advantages to medical management?
Can be at home if desired
What are the disadvantages of medical management?
Medication side effects
- D+V
Heavy bleeding + pain
What is the follow up for medical management?
Pregnancy test 3 weeks later
What is the surgical management of miscarriages?
<12 weeks = manual vacuum aspiration with local anaesthetic
Evacuation of retained products of conception
What are indications for surgical management?
Haemodynamic instability
Infected tissue
Gestational trophoblastic disease
What are the advantages of surgical management?
Planned procedure
Patient unaware during procedure