27 yr daughter 27 week preg. in hospital pre term labor. slightly dialated, cervix started to elongate. what are the odds labor can be stopped?

You really need to: Discuss this with her doctors as they know her specific situation and the meds she is on and if she is having any problems with the meds cannot give any odds withiut knowing a lot more and once the labor is stopped , have to keep it stopped until at least 36 weeks if possible and hopefully a perinatologist is being consulted and involved in her care.

Trust your OB: Your obstetrician knows what to do and probably are doing everything at this point to stop the labor (tocolitics). But sometimes it just doesn't work. And baby get delivered. The survival rate at this age is high enough for the baby. Be sure your daughter with get the antenatal steroids to mature the fetal lungs and keep her calm and relaxed as possible. Keep on positive thinking.