First Trimester Hemoglobin A1 and Risk for Major Malformation and Spontaneous Abortion

Abstract

This chapter summarizes a landmark study on the association of first trimester hemoglobin A1 values with risk for spontaneous abortions and major fetal malformations during pregnancy in women with pregestational diabetes. Is there a correlation between glycemic control during the first trimester and risk for spontaneous abortion and major malformations? Starting with this question, it describes the basics of the study, including study location, study population, amount of patients, study design, follow-up, endpoints, results, and criticism and limitations. The chapter briefly reviews other relevant studies and information, discusses implications, and concludes with a relevant clinical case.