Multiple pregnancy Flashcards
in terms of placentae and amnions, what is the ideal number for a twin pregnancy?
it is always better to have each foetus with its own placenta and amnion (i.e. dichorionic diamniotic is best)
what is indicated by the lambda sign?
dichorionic diamniotic
the membrane between the twins meets the chorion and blends partially
what is indicated by the twin peak sign?
this is the same as the lambda sign - it indicates a dichorionic pregnancy
what is indicated by the T sign?
the membrane between the twins abruptly meets the single chorion i.e. monochorionic pregnancy
almost all complications of pregnancy are more common with multiple pregnancies. Which problem in the mother do we screen for specifically?
additional checks for anaemia at 20 and 28 weeks
TTTT syndrome: problems in the donor
problems in the recipient
growth restriction and oligohydramnios
fluid overload —-> hydrops fetalis and polyhydramnios
how is severe TTTT syndrome managed?
laser
what is Twin Anaemia Polycythaemia Sequence?
like TTTTS but less severe
2 complications for the foetus which are specifically monitored for in multiple pregnancy
IUGR
unequal growth/TTTTS
how frequently are monochorionic pregnancies monitored for foetal complications? and from when?
every 2 weeks from 16 weeks gestation
how frequently are dichorionic pregnancies monitored for foetal complications? and from when?
every 4 weeks from 20 weeks gestation
true or false: all multiple pregnancies should have a planned birth
true - or is should be planned
when is birth planned in monochorionic monoamniotic twins?
32 - 33 +6 /40 by caesarean
when is birth planned in monochorionic diamniotic twins?
36 - 36+6 /40
when is birth planned in dichorionic diamniotic twins?
between 37 and 37+6 /40
