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Obstet Gynecol. 2012 Aug;120(2 Pt 2):439-42. doi: 10.1097/AOG.0b013e31824fd27d.

Pregestational diabetes with extreme insulin resistance: use of U-500 insulin in pregnancy.

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  • 1Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520-8063, USA. lisa.zuckerwise@yale.edu

Abstract

BACKGROUND:

Increased insulin requirements in pregnancy can hinder attainment of glycemic control in diabetic patients. U-500 insulin is a concentrated form of regular insulin that can be a valuable tool in the treatment of patients with severe insulin resistance.

CASE:

A 24-year-old woman with pregestational diabetes mellitus experienced increasing insulin requirements during pregnancy, peaking at 650 units daily. The frequent, large-volume injections of standard-concentration insulin were poorly tolerated by the patient and resulted in nonadherence. She subsequently achieved glycemic control on thrice-daily U-500 insulin.

CONCLUSION:

Pregnancy exacerbates insulin resistance in diabetic patients, and these patients may require high doses of insulin. U-500 insulin is an effective alternative for patients with severe insulin resistance and should be considered for pregnant women with difficulty achieving glycemic control.

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PMID:
22825259
[PubMed - indexed for MEDLINE]
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