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[Cardiovascular repercussions of chronic hemodialysis]
A P Guérin1, S J Marchais, F Métivier
1Centre hospitalier FH Manhes, Fleury-Mérogis.
Insights
Coronary heart disease and left ventricular failure are leading causes of death in patients undergoing haemodialysis. Uraemic cardiopathy, characterized by specific cardiac changes, contributes to these outcomes in dialysis patients.
Area of Science:
- Nephrology
- Cardiology
- Internal Medicine
Context:
- Haemodialysis patients face high mortality rates from coronary disease and left ventricular failure.
- Cardiovascular complications in this population are often linked to a multifactorial risk profile rather than solely accelerated atherosclerosis.
- Diagnosing coronary disease in haemodialysis patients can be challenging.
Purpose:
- To describe the characteristics of "uraemic cardiopathy" in haemodialysis patients.
- To differentiate the etiology of coronary disease in this cohort from typical accelerated atherogenesis.
- To highlight the specific cardiac structural and functional alterations observed.
Summary:
- "Uraemic cardiopathy" presents as left ventricular dilatation with increased myocardial mass but a low mass/volume ratio, irrespective of prior cardiovascular history.
- Systolic function is generally preserved.
- Diastolic compliance is impaired due to left ventricular hypertrophy.
Impact:
- Provides a clearer understanding of cardiac pathology in haemodialysis patients.
- Aids in the diagnosis and management of cardiovascular complications in this high-risk group.
- Highlights the importance of addressing "uraemic cardiopathy" in clinical practice.
Abstract:
Coronary disease and left ventricular failure are the two main causes of death in haemodialysis patients. In these particular patients it is the accumulation of several risk factors rather than accelerated atherogenesis which seems to be the responsible for the frequent manifestations of a coronary disease which is sometimes difficult to diagnose. Independently of any cardiovascular history, the so-called "uraemic cardiopathy" is characterized by left ventricular dilatation associated with an increased myocardial mass but with a low mass/volume ratio. The systolic function is preserved whereas the ventricular diastolic compliance is altered due to the left ventricular hypertrophy.