Multiple pregnancies Flashcards
1
Q
What does zygotisity refer to?
A
Number of eggs fertilised
Monozygote: one egg fertilised and separates after a couple of days
Dizygote: two eggs fertilised
2
Q
What does chronicity refer to?
A
Number of placentas
3
Q
What does amniocity refer to?
A
Number of amniotic sacs
4
Q
Increased risk of dizygotic pregnancy
A
- Older age
- Parity
- FH
- Fertilisation treatment
- Ethnicity
- Race
5
Q
What increases the risk of a monosygote twin pregnancy?
A
UNKNOWN
6
Q
What are some of the common complications associated with multiple pregnancies?
A
- Pre- term
- Perinatal mortality
- Growth restrictions
- Cerebral palsy
- Twin transfusion syndrome
- Malpresentation
7
Q
Presentation
A
- Large uterus
- Multiple fetal poles
- Multiple fetal hearts
- US distinguishes between chorionic and dichorionic
8
Q
What is twin transfusion syndrome?
A
- Condition which presents in Monochorionic twins
- Abnormality in blood vessel presentation means that one twin receives more blood flow than the other
- Donor becomes dehydrated
- Recipient becomes overloaded- increased BP and fluids which can spill out into the placenta
