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Re: LATIVE RISK From: art fougner, md (evsono@pipeline.com) Tue Feb 20 21:38:54 2001 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: art fougner, md: "Re: UMNs Woolley perpetuates mass rape-like behavior" Previous message: DoctorJoe@aol.com: "Re: humbled by an ectopic" In reply to: Richard Chudacoff, MD: "RELATIVE RISK" would defer to Drs. Bombard and Roberts for the math but i'd suggest looking at this a different way. in Beryl Benacerraf's lab, they use a scoring system for their "genetic sonogram." age 40 or over achieves a score sufficient to warrant amnio without any sonar findings. art At Tue, 20 Feb 2001, Richard Chudacoff, MD wrote: > >I have a friend (believe it or not) who is a 41 year old G3 P2 with a >greater than 15 year history of IDDM. I don't believe she has any >renal, eye, cardiac, or other end-organ problems, and she did mangae to >get pregnant unintentially, while her Hbg A1C what slightly elevated. >Currently she is at 12 weeks EGA and called me for advice. > >She has been offered a CVS for tomorrow (the last day her perinatologist >would do it) and asked me my thoughts. While talking with her, we >discussed the nuchal translucency test, and I came to ponder this >question: What would be the chance of having an abnormal fetus with a >normal 11-12 week nuchal translucency study, normal 15 week maternal >serum alphafetoprotein and a normal 18 week level ll ultrasound? Would >the false negative rate (i.e. the chance of having an abnormal fetus >with normal testing in all three areas) approach that of an >amniocentesis at 15 or 16 weeks? Would the rate of diagnosing an >abnormal fetus using the combination of these three non-or-minimally >invasive tests approach than of the invasive amniocentesis? True, the >results of the amnio would be received sooner than waiting for the 18 >week ultrasound, but the risk of loss would be greater, too. > >Anyone out there with a mathamatical background that can answer this? > >Thanks > >Rick > >-- >Richard Chudacoff, MD >Chudacoff Obstetrics & Gynecology, PLLC >Sugar Land, TX > -- art fougner, md A series of 1000 cases begins with but a single anecdote. Next message: art fougner, md: "Re: UMNs Woolley perpetuates mass rape-like behavior" Previous message: DoctorJoe@aol.com: "Re: humbled by an ectopic" In reply to: Richard Chudacoff, MD: "RELATIVE RISK"

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