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Re: Umbilical Artery Doppler From: James S Smeltzer MD (gaperina@mindspring.com) Wed Jan 30 19:26:03 2002 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: SKorn48713@aol.com: "Need medical advise" Previous message: James S Smeltzer MD: "Re: Benacerraf's Genetic Scoring System" In reply to: jude biss: "Umbilical Artery Doppler" Hi! We use the MCA as well as the umbilical and do it every other or every third week unless the DRI (MCA RI minus Umb RI) is under .05 or the patient is clinically unstable with PIH. Then we might do it every week. As the MCA changes (RI falls) much earlier than the umbilical (RI rises), this provides us more warning time than just looking at the umbilical. We have not lost a baby under surveillance despite many high risk ones over the years, so I do not think this is too infrequent. The index is age-independent after 26 weeks. Dopplers are NOT used to identify time of delivery, but level of other surveillance. Of course all these are managed with perinatal consultation. Generalists may not be as effective at managing these cases and more likely to order or need that extra information. Jim Smeltzer At 02:29 PM 1/21/2002 -0600, you wrote: >I'm a sonogrpaher trying to find out what the suggested frequency of UA >doppler is in the high risk pregnancy, but can't find anything very much >in the literature. (The requests from obstetricians in our unit vary >from weekly to 3 times per week.) >One view was that there are seven days to deliver from the start of >reverse flow, is that a published fact? I'd be grateful for any input. > >-- >jude biss > Next message: SKorn48713@aol.com: "Need medical advise" Previous message: James S Smeltzer MD: "Re: Benacerraf's Genetic Scoring System" In reply to: jude biss: "Umbilical Artery Doppler"

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