Re: Impaired Glucose Tolerance vs Gestational Diabetes - treatment?

From: ainsron (ainsron@sbcglobal.net)
Thu Nov 10 11:12:54 2005


You're right, I've never used the 75gm test, except in postpartum women. I was surprised to see it mentioned by the ADA as an alternative, but it is.

Ronald E. Ainsworth, MD, FACOG

-----Original Message----- From: ob-gyn-l@obgyn.net [mailto:ob-gyn-l@obgyn.net] On Behalf Of Robert J. Carpenter, Jr. MD Sent: Wednesday, November 09, 2005 7:54 PM To: Multiple recipients of list OB-GYN-L Subject: Re: Impaired Glucose Tolerance vs Gestational Diabetes - treatment?

The 75 gm WHO std is not the std for dx in the US. Additionally the present of 1 elevated value in a large study from Italy years ago (the 2hr value) showed that increasing value correlated with increased size and increased c/s rate (Tallerigho - sp?). If GDM is dx, then retesting at 8-10wks PP with the 75gm WHO std is appropriate for determination of class of glu tolerance

On 8 Nov 2005 at 15:12, ainsron wrote:

> Here's the position paper from the American Diabetes Association:
> http://care.diabetesjournals.org/cgi/content/full/26/suppl_1/s103
>
> If they IFG (impaired fasting glucose) or IGT (Impaired glucose
> tolerance) the recommendations only suggest retesting postpartum and
> annually. Retesting later in pregnancy, ~34 wks is also reasonable.
>
> Ronald E. Ainsworth, MD, FACOG
>
> -----Original Message-----
> From: ob-gyn-l@obgyn.net [mailto:ob-gyn-l@obgyn.net] On Behalf Of
> Natalie Melanson, RM Sent: Monday, November 07, 2005 6:28 PM To:
> Multiple recipients of list OB-GYN-L Subject: Impaired Glucose
> Tolerance vs Gestational Diabetes - treatment?
>
> First a brief intro: I am a registered midwife working in a group
> practice in Northern Ontario, Canada.
>
> Notwithstanding the controversy surrounding even screening for GDM -
> at our practice we do screening based on risk factors - I am wondering
> what everyone's treatment protocol is regarding confirmed Gestational
> Diabetes vs "just" Impaired Glucose Tolerance of pregnancy, ie. only
> one elevated value on 75g GTT that is NOT diagnostic of GDM. Do you
> do the same diet counseling, glucose monitoring, fetal monitoring in
> the last trimester, etc? My feeling is that diet counseling should be
> enough for IGT and then perhaps repeat the test after a month or so of
> dietary changes.
>
> thanks,
>
> Natalie Melanson, RM
> Sudbury Community Midwifery Practice
> Sudbury, Ontario
>

Robert J. Carpenter, Jr. MD 6624 Fannin, #2720 St. Luke's Medical Tower Houston,TX 77030-2339 713-795-4600





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