Early pregnancy Flashcards
Miscarriage risk factors
Maternal age > 30-35
Obesity
Antiphospholipid syndrome
Coagulopathies
Previous miscarriage
Smoking / alcohol intake
Uterine abnormalities
Previous uterine surgery
Chromosomal abnormalities (maternal and paternal)
Miscarriage clinical features
Vaginal bleeding
Suprapubic cramping pain
Haemodynamic instability (dizziness, fainting episodes, faintness, pallor, tachypnoea, hypotension)
Distended abdomen
Abdominal and uterine tenderness
Miscarriage investigations
TVUS (mean sac diameter >25mm)
Fetal cardiac monitoring
Blood tests (beta HCG, FBC, blood group, Rhesus status, CRP)
Triple swabs (rule out infection)
Miscarriage management
If >12 weeks gestation + Rhesus negative = Anti-D prophylaxis
Conservative
Medical (misoprostol = prostaglandin analogue)
Surgical (manual vacuum aspiration / ERPC) with local anaesthetic <12 weeks)
Threatened miscarriage classification
small PV bleeding
pelvic pain
cervical os closed
viable pregnancy
Inevitable miscarriage classification
large PV bleeding
pelvic pain
cervical os open
fetus viable or non-viable
Missed miscarriage classification
Asymptomatic or Hx of threatened miscarriage (PV bleeding, pelvic pain)
cervical os closed
no fetal heart pulsation
fetal crown rump length >7mm
Incomplete miscarriage classification
Sx of missed miscarriage (asymptomatic / PV bleeding, pelvic pain)
previous proof of interuterine pregnancy
cervical os closed
fetal / embryonic tissue retained and present on USS
Complete miscarriage classification
Hx of bleeding, pelvic pain
mother settling / settled
cervical os closed
no POC seen on USS and no viable foetus
endometrium <15 mm
proof of previous intrauterine pregnancy
Septic miscarriage classification
Infected POC (fevers, rigours, uterine tenderness, bleeding / discharge, pain)
Leucocytosis, ^ CRP, features of complete / incomplete miscarriage
Miscarriage definition
Loss of foetus <20 weeks
Nb. >20 weeks = still birth
Misoprostol MOA
prostaglandin analogue >
stimulates cervical ripening and myometrial contractions