Type 2 Diabetes in Pregnancy

Endocrinol Metab Clin North Am. 2019 Sep;48(3):511-531. doi: 10.1016/j.ecl.2019.05.009. Epub 2019 Jun 26.

Abstract

Hyperglycemia is common during pregnancy, involving multisystem adaptations. Pregnancy-induced metabolic changes increase insulin resistance. Pregnancy-induced insulin resistance adds to preexisting insulin resistance. Preexisting pancreatic β-cell defect compromises the ability to enhance insulin secretion, leading to hyperglycemia. Women with type 2 DM have similar rates of major congenital malformations, stillbirth, and neonatal mortality, but an even higher risk of perinatal mortality. In utero type 2 DM exposure confers greater risk and reduces time to development of type 2 DM in offspring. Preconception care to improve metabolic control in women with type 2 diabetes is critical.

Keywords: Management; Pregnancy hyperglycemia; Type 2 diabetes.

Publication types

  • Review

MeSH terms

  • Congenital Abnormalities / blood
  • Congenital Abnormalities / epidemiology
  • Congenital Abnormalities / etiology
  • Congenital Abnormalities / prevention & control
  • Diabetes Mellitus, Type 2* / blood
  • Diabetes Mellitus, Type 2* / epidemiology
  • Diabetes Mellitus, Type 2* / therapy
  • Female
  • Glycated Hemoglobin / analysis
  • Humans
  • Preconception Care / methods
  • Pregnancy
  • Pregnancy Outcome / epidemiology
  • Pregnancy in Diabetics* / blood
  • Pregnancy in Diabetics* / epidemiology
  • Pregnancy in Diabetics* / therapy
  • Prenatal Exposure Delayed Effects / blood
  • Prenatal Exposure Delayed Effects / diagnosis
  • Prenatal Exposure Delayed Effects / prevention & control

Substances

  • Glycated Hemoglobin A