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  • Title: Glycemic targets for patients with type 2 diabetes mellitus.
    Author: Hamnvik OP, McMahon GT.
    Journal: Mt Sinai J Med; 2009 Jun; 76(3):227-33. PubMed ID: 19421966.
    Abstract:
    Cardiovascular disease is the predominant cause of death in diabetic patients, and reducing the risk of cardiovascular disease in diabetics has recently been the focus of several highly publicized large trials, including ACCORD (Action To Control Cardiovascular Risk in Diabetes), ADVANCE (Action in Diabetes and Vascular Disease: Preterax and Diamicron MR Controlled Evaluation), and VADT (Veterans Affairs Diabetes Trial). These studies randomized high-risk diabetic patients into either intensive treatment or standard treatment. The glycemic control arm of ACCORD was terminated 17 months before the planned end of the study because of a finding of significantly increased all-cause and cardiovascular mortality in the intensive treatment group. These findings were not duplicated in either ADVANCE or VADT. Multiple possible explanations have been brought forward, including a higher incidence of death from unrecognized hypoglycemia, effects due to increased exposure to particular antidiabetic medications, adverse effects of rapid correction of hyperglycemia, weight gain, and differences in baseline characteristics. None of these were validated in post hoc analyses of the trial data, and the cause of the increased mortality remains elusive. Subgroup analyses suggest that those who start off with better control of their diabetes or without preexisting cardiovascular disease may have the most to gain from tight glycemic control. Reducing the risk of macrovascular disease and death in diabetic patients requires not only attention to glucose control but also meticulous attention to control of nonglycemic risk factors, including hypertension, hyperlipidemia, smoking, lack of exercise, and unhealthy diet as well as timely prescription of medications with proven preventative benefits, such as aspirin and statins.
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