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Diabetes mellitus and coronary artery disease: therapeutic considerations
Joydeep Ghosh1, Melvin B Weiss, Richard H Kay
1Division of Cardiology, Department of Medicine, Westchester Medical Center/New York Medical College, Valhalla, New York 10595, USA.
Insights
Diabetes patients face high macrovascular disease risks, primarily coronary artery disease. While coronary bypass grafting historically outperformed percutaneous interventions, newer trials suggest a more complex, debated treatment landscape.
Area of Science:
- Cardiology
- Endocrinology
- Public Health
Background:
- Diabetes mellitus affects 6% of the U.S. population, with increasing prevalence.
- Macrovascular disease, particularly coronary artery disease, is the leading cause of mortality in diabetic patients.
- The pathophysiology involves hyperglycemia, dyslipidemia, hyperinsulinemia, and a procoagulant state.
Purpose of the Study:
- To review the current evidence on revascularization strategies for multivessel coronary artery disease in diabetic patients.
- To evaluate the historical and contemporary outcomes of coronary artery bypass grafting versus percutaneous coronary interventions.
Main Methods:
- Review of first-generation and newer clinical trials comparing coronary bypass grafting and percutaneous interventions.
- Analysis of outcomes considering factors like stent technology and adjunctive therapies.
Main Results:
- Early trials consistently favored coronary bypass grafting for multivessel disease in diabetes.
- Recent trials incorporating stents and glycoprotein IIb/IIIa inhibitors present a more nuanced, controversial picture.
- The optimal revascularization strategy remains under investigation.
Conclusions:
- The choice of revascularization for diabetic patients with multivessel coronary artery disease is complex and evolving.
- Ongoing research is crucial to settle the debate between surgical and percutaneous approaches.
- Individualized patient assessment is key in determining the best treatment strategy.
Abstract:
Diabetes mellitus affects about 6% of the U.S. population and represents a significant public health challenge, with numbers of those affected increasing every year. The most common cause of death in these patients is macrovascular disease, with coronary disease being the predominant form. The pathophysiology of coronary disease in patients with diabetes is complex and involves elements of hyperglycemia, dyslipidemia, hyperinsulinemia, as well as a procoagulant vascular milieu. First-generation trials looking at revascularization of multivessel disease in patients with diabetes have had long clinical follow-up periods and seem to consistently favor coronary bypass grafting over percutaneous interventions; however, newer trials that include the use of stents and glycoprotein IIb/IIIa inhibitor therapy as part of the latter strategy have raised some interesting questions, so that the issue remains controversial and by no means settled.