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Monozygotic twins
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Nick Raine-Fenning
Course Director


Joined: 27 May 2006
Posts: 1742
Location: Nottingham

PostPosted: Sat May 24, 2008 6:00 pm    Post subject: Reply with quote

Boston US or Boston Lincolnshire?? If the latter we should meet as Nottingham is close.
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Sun May 25, 2008 4:14 pm    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Boston US or Boston Lincolnshire?? If the latter we should meet as Nottingham is close.


Moving to Boston Massachussets--the city named after Boston Licolnshire.
Would love to meet you sometime when I visit UK!
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Sun May 25, 2008 10:34 pm    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

5. the incidence of early preterm delivery (before 32 weeks) is four times that for singleton pregnancies



I would say True
In singleton pregnancies, the rate of spontaneous delivery at or before 32 weeks is 1% to 2%.

In twin pregnancies, the rate of preterm delivery at or before 32 weeks is 5–10%.
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 3:11 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

have a 6% chance of congenital abnormality for each twin


I would go for True Major malformations develop in 2 percent and minor malformations in 4 percent of twins
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 3:26 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

6. they have twice the chance of being SGA



True
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 3:27 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

11. have a much higher rate of RDS for comparable gestational ages

That will keep you busy! Smile


False

After taking into account gestation, twins are not at higher risk of RDS compared with singletons except at very early gestation.

Interestingly second twin has more risk of RDS than the first
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 4:02 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

2. the risk of early miscarriage is 40%



I am tempted to go for a True


Last edited by cpeedahsa on Mon May 26, 2008 4:18 am; edited 1 time in total
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 4:05 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

3. the risk of late miscarriage (12-24 weeks) is 12%



Not sure, but I would go for true
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 4:07 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

10. have a stillbirth rate comparable to that seen in high risk mothers

That will keep you busy! Smile


True
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cpeedahsa
Century Club


Joined: 21 Apr 2007
Posts: 788

PostPosted: Mon May 26, 2008 4:08 am    Post subject: Reply with quote

Nick Raine-Fenning wrote:
Can I add some as well? These are very important to us in an IVF unit especially with the big drive for single embryo transfer (SET). So:

With regard to twin pregnancy:

9. have a higher indicence of stillbirth even if normally grown



True
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