Coronary artery disease in insulin-dependent diabetes mellitus of pregnancy (class H): a review of the literature.

Coronary heart disease and myocardial infarction are uncommon complications during pregnancy. Women with insulin-dependent diabetes mellitus (IDDM) have a much greater risk of serious coronary heart disease, but few cases of myocardial infarctions occurring during pregnancy have been reported. Significant maternal morbidity has been reported in half of these cases. This is a case of a myocardial infarction occurring at 21 weeks of gestation in a patient with class R/F IDDM and the subsequent pregnancy management as well as a review of the literature concerning Class H IDDM in pregnancy.