Episode
Retest GDM Late 3rd Tri for LGA or Poly? (OCT 2026 Data)
- Published
- Sep 20, 2026
- Duration seconds
- 1691
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Summary
Picture this common, late-gestation conundrum: You’re reviewing a 34-week sono. The mid-pregnancy 24-to-28-week glucose screen was completely normal. But now, the sonogram pops up with an estimated fetal weight of over 90%, or maybe a MVP (or AFI) that’s overtly elevated. The classic clinical dilemma hits: Do you order a repeat OGTT this late in the game? Is it actually worth poking the patient again, or are you just chasing shadows? Well, we now have new meta-analytic data. Today, we are reviewing fresh, high-yield data hot off the press from the American Journal of Obstetrics & Gynecology (OCT 2026). We’re breaking down this systematic review evaluating late-onset GDM- looking at precisely who may yield a positive diagnosis on a repeat third-trimester test, why LGA and polyhydramnios are not created equal when deciding to re-screen, and what these late numbers mean for neonatal hypoglycemia and cesarean delivery rates. AND, although these insights are helpful- some questions remain. Let’s jump in! 1. Dominsky O, Berkovitz-Shperling R, Rosenberg-Fridman M .Late-onset diagnosis of gestational diabetes after normal mid-pregnancy screening in women with large for gestational age or polyhydramnios: a systematic review and meta-analysis. American Journal of Obstetrics & Gynecology, 2026; 235, 789-799