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Re: twins From: Malcolm Griffiths (Malcolm@mgriff22.demon.co.uk) Thu May 30 14:16:07 1996 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Dr. Guillermo R. Suttora: "Re: Chromic&Double Lacerations" Previous message: Malcolm Griffiths: "ultrasound in EU ( was Holland )" In reply to: ATB28@aol.com: "Re: twins" Next in thread: DoctorJoe@aol.com: "Re: twins" In message <960530103515_545612782@emout09.mail.aol.com>, ATB28@aol.com writes >In a message dated 96-05-29 22:32:25 EDT, allen.gardner@utoronto.ca (Allen >Gardner) writes: > >>Do you consider that a twin pregnancy increases the liklihood for >>congenital abnormalities? Do you offer a detailed 2nd trimester US >>simply on the basis of twins? >>Allen. > >Yes to both, and we offer different aneuploidy risks (maternal age related) >for twins than for singletons...the end result of which is that the threshold >age for offering prenatal diagnosis is 32 years of age in this group (risk >for any twin to have a chromosomal problem is 1/179 at term, which ~ the >1/192 risk of a 35 year old with a singleton pregnancy). > Could you explain the basis for this please. Are you simply saying that if she's carrying twice as many babies she's twice as likely as any other 32 yo to have an aneuploid fetus ? -- Malcolm Griffiths MD,MRCOG,MFFP,Cert.Mgmnt Obstetrician & Gynaecologist Luton & Dunstable Hosp.,UK. Tel: 01582-497459 (office) 01525-222849 (home) Fax: 01582-497424 email: Malcolm@mgriff22.demon.co.uk "It is dangerous to be right on a subject on which the established authorities are wrong." (Voltaire) Next message: Dr. Guillermo R. Suttora: "Re: Chromic&Double Lacerations" Previous message: Malcolm Griffiths: "ultrasound in EU ( was Holland )" In reply to: ATB28@aol.com: "Re: twins" Next in thread: DoctorJoe@aol.com: "Re: twins"

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