Admission hyperglycemia in acute myocardial infarction: possible role in unveiling patients with previously undiagnosed diabetes mellitus.

Aim: The aim of this study was to investigate the relationship between admission plasma glucose levels and abnormal glucose metabolism in patients with acute myocardial infarction (AMI) without a previous diagnosis of diabetes mellitus.

Methods: A total of 285 nondiabetic patients admitted with AMI were screened for glucometabolic disorders by using fasting glucose measurements during hospital stay or an oral glucose tolerance test on discharge. Patients diagnosed as having diabetes mellitus were followed-up for a mean of 60 ± 33 months in order to confirm the diagnosis.