INS and transient ischemic attack: In the study by Axelrod et al. there was a somewhat higher percentage of post-operative complications in the diabetics, although without a significant difference between the patients on insulin and those on oral antidiabetics.21 Dimić et al. have shown the cumulative rate of TIA/cerebrovascular infarction (p = 0.02) to be greater in insulin-dependent diabetics (IDDM) than in those who are insulin independent (IIDM).22