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Heart failure and nephropathy: catastrophic and interrelated complications of diabetes
Richard E Gilbert1, Kim Connelly, Darren J Kelly
1University of Melbourne Department of Medicine, St. Vincent's Hospital, Victoria, Australia. gilbert@medstv.unimelb.edu.au
Insights
Diabetic nephropathy significantly increases heart failure risk. New therapies are emerging to address both heart and kidney issues in diabetic patients.
Area of Science:
- Cardiology
- Nephrology
- Endocrinology
Background:
- Heart failure (HF) is a leading cause of mortality and hospitalization.
- Diabetic nephropathy is a major independent risk factor for HF development.
- Patients with diabetic nephropathy face high risks due to comorbidities like coronary artery disease, hypertension, and diabetic cardiomyopathy.
Purpose of the Study:
- To review the epidemiology of HF in diabetic nephropathy.
- To highlight advances in noninvasive imaging for early cardiac dysfunction detection in diabetes.
- To discuss therapeutic strategies for managing co-existing HF and nephropathy in diabetes.
Main Methods:
- Review of epidemiological data on HF and diabetes.
- Analysis of advances in noninvasive cardiac imaging techniques.
- Examination of subanalyses from large clinical trials involving diabetic subgroups.
- Assessment of emerging therapeutic strategies targeting both HF and nephropathy.
Main Results:
- Diabetic nephropathy confers a particularly high risk for heart failure.
- Early cardiac dysfunction and HF with preserved ejection fraction are prevalent in diabetes.
- Subanalyses of clinical trials offer some guidance for therapeutic decisions.
- New therapeutic strategies targeting both conditions are entering clinical practice.
Conclusions:
- Diabetic nephropathy is a critical risk factor for heart failure.
- Early detection of cardiac dysfunction in diabetic patients is crucial.
- Integrated therapeutic approaches are needed for patients with both heart failure and diabetic nephropathy.
- Ongoing research and clinical trials are essential for developing improved treatments.
Abstract:
Heart failure (HF) is a major contributor to poor quality of life, a leading cause of hospitalization, and cause of premature death. Both kidney disease and diabetes are major and independent risk factors for the development of heart failure, such that individuals with diabetic nephropathy are at especially high risk. Such patients not only are likely to have coronary artery disease and hypertension but also are likely to have diabetic cardiomyopathy, a distinct pathologic entity that is more closely associated with the microvascular than the macrovascular complications of diabetes. In addition to a better understanding of the epidemiology of HF, advances in noninvasive imaging have highlighted the importance of early cardiac dysfunction in diabetes and the high prevalence of HF with preserved left ventricular systolic function. Although significant renal dysfunction is usually an exclusion criterion in HF trials, diabetes is often a prespecified subgroup so that subanalyses of large multicenter clinical trials do provide some guidance in therapeutic decision-making. However, further therapies for both HF and nephropathy in diabetes clearly are needed, and a number of new therapeutic strategies that target both disorders have already entered the clinical arena.
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