Vasa Praevia Flashcards
What is vasa praevia?
Conditon where the foetal vessels run near to or across the internal cervical os.
What happens to the fetal vessels during rupture of the membranes?
The fetal vessles are likely to rupture as they are not supported by the umbilical cord or placental tissue
Why do the fetal vessels rupture during rupture of the membranes in someone with vasa praevia?
Because they are unsupported by the umbilibal cord or placental tissue
What can rupturing of the fetal vessels during rupture of the membranes result in?
Foetal haemorrhage and foetal death.
What are the classic features of vasa praevia?
Painless vaginal bleeding
Rupture of membranes
Foetal bradycardia (or resulting foetal death)
How can vasa praevia be diagnosed?
Transabdominal or transvaginal ultrasonograph
When is vasa praevia usually diagnosed?
Antenatally
How can vasa praevia be managed?
Elective c-section prior to rupture of membranes at 35-36 weeks gestation
When should a c-section be carried out in someone with vasa praevia?
35-36 weeks gestation
