Re: 20 weeks with PPROM + previa

From: dahmd@gate.net
Mon Jul 1 17:59:49 1996


In article "R. Daniel Braun" <rBraun@IUNET.IUPUI.EDU> writes:

>I doubt that she has a complete previa or that she has ruptured
>membranes. They don't go together. If she has a total previa, how does
>the fluid get out without severe hemorrhage ???

I see your point, but disagree. There are a number of possibilities. There could be a "high leak" above the previa, or more likely there could be a leak at the os with leakage around the placenta. Water, or amniotic fluid, has amazing abilities to sneak around barriers. For brevity, I did not mention that she had an amniocentesis with instillation of indigo carmine that leaked into the vagina (amnio negative for infection). She is not my patient, but I'm sure the physician managing her can diagnose leaking indigo carmine!

>If she opted for induction, I would utilize prostaglandin. IF SHE STARTED
>TO BLEED HEAVILY PRIOR TO ANY DILATATION ONE WOULD BE
>FORCED TO DELIVER ABDOMINALLY. (sorry, I hit the caps lock) If she
>dilated and then bled, one could use any of a number of maneuvers to
>apply pressure to the placenta and stop the hemorrhage.

I think this is pretty reasonable. A type and cross for a few units would be prudent beforehand. This may be the way they proceed with her care.

>Ultrasound at 20 weeks is not very good at diagnosing previa. Rupture of
>BOW and loss of fluid makes it even worse. The lower uterine segment
>(read upper cervix) has an ultrasound appearance that is very similar to
>placenta.

Agreed, but high-resolution sonography performed with multiple, experienced physicians in attendance, and color-flow doppler have both documented placenta wrapped around the os. They even performed a bried vaginal probe which showed the same thing. You'll have to trust me on this one: she has a previa.

Thanks for the assistance,

Ashley D. Ashley Hill, M.D. Assistant Director Dept of Ob/Gyn Florida Hospital Family Practice Residency Orlando, FL





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