Cardiomyopathy and heart failure in diabetes.

Patients with insulin resistance or type 2 diabetes have a particularly high risk for heart failure and a poor prognosis once they develop heart failure. The choice of drugs for the management of heart failure in these patients should be directed at changing the natural history of the disease. The various drugs available for the treatment of heart failure, including ACE inhibitors and beta-adrenergic blockers, are known to be beneficial and should be given as first-line agents. Aggressive risk-factor modification and tight blood pressure and glycemic control are crucial. Much work is needed to establish the safety and efficacy of various oral antidiabetic agents, especially the TZDs, for which the theoretic benefits are substantial and overall morbidity and mortality impact remain ill-defined.