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Weight discordant?

AppleBearAppleBear
in Multiples

If your babies were considered weight discordant what were their weights?

My OB said that my twins at 5.3 and 5.14 at 35w1d were weight discordant, which didn't sound right to me.  So I spoke with a friend, whose a fertility specialist and did her residency in OB/GYN and she said the twins had concordant weights.  The weight discordance was my OB's reasoning that I should have a scheduled c instead of a TOL-trial of labor. 

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Re: Weight discordant?

  • pea-kaypea-kay member
    That doesn't sound discordant to me. I don't know the math, but isn't it a 20% difference to be considered discordant? At my last u/s, two of the boys were almost a pound apart (this at less than 5 lbs) and even then they weren't considered discordant.
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    The different types of twins and triplets
     
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  • AppleBearAppleBear

    imagepea-kay:
    That doesn't sound discordant to me. I don't know the math, but isn't it a 20% difference to be considered discordant? At my last u/s, two of the boys were almost a pound apart (this at less than 5 lbs) and even then they weren't considered discordant.

    That's what I'm seeing online.  But my OB expressed concern at trying to deliver my bigger Baby B.  I'm kind of pissed if this guy is just feeding me a line of bull in order to do a surgery. 

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  • pea-kaypea-kay member
    Well, I'm not sure about all that, seeing as I was always going to have a c/s, but I have heard that some doctors won't let you go vaginally if baby B is bigger. I guess they want Baby A to pave the way, so to speak.
    image
    How to tell my boys apart

    The different types of twins and triplets
     
    Jack, Sydney and Carynne, Annaleigh, JW, Eden...forever in our hearts.
    My blog * We made the national news!
    image
    Report Reply
  • Haven1Haven1
    imagepea-kay:
    but I have heard that some doctors won't let you go vaginally if baby B is bigger.
    That's what I was told too.  No matter how much, if B was bigger, it was c/s only.
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  • E&RMommyE&RMommy

    The concern over vaginal delivery of baby B being bigger is if baby B is breech.  The head can get entrapped.  With that being said, it really depends on the skill of the ob and their comfort level.

    To the OP, if you change the weights to ounces and do the math (big baby - small baby / big baby) your babies are 11.7% different.  Mild discordance by most standards is a 15% difference.....so your babies are definitely concordant.

    Maybe your doc just isn't comfortable with a breech extraction of twin B??? 

    Three losses in 2009; Boy/Girl twins born in 2010 image
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  • SoldiersGreenBeanSoldiersGreenBean

    My OB said they comsider anything over 10% difference to be discordant.

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