Atherosclerosis in dialyzed patients

Area of Science:

• Nephrology
• Cardiology
• Internal Medicine

Background:

• Cardiovascular disease (CVD) mortality is high in dialysis patients, particularly in Europe.
• Ischemic heart disease (IHD) is the primary cause of death among patients undergoing dialysis, as indicated by the HEMO study.
• The etiology of accelerated atherosclerosis in dialysis patients is debated, involving both traditional and non-traditional risk factors.

Purpose of the Study:

• To investigate the multifactorial causes of accelerated atherosclerosis in patients on dialysis.
• To elucidate the role of non-traditional risk factors in the high incidence of IHD in dialyzed patients.

Main Methods:

• Analysis of data from the HEMO study.
• Review of existing literature on cardiovascular risk factors in dialysis patients.
• Comparison of traditional and non-traditional risk factors associated with atherosclerosis.

Main Results:

• Ischemic heart disease is the most frequent cause of death in patients undergoing dialysis.
• Non-traditional risk factors, including microinflammation, elevated asymmetrical dimethyl-L-arginine, phosphate metabolism disturbances, and anemia, are increasingly recognized as significant contributors.
• These factors, alongside classic risk factors like hypertension, dyslipidemia, and diabetes, drive accelerated atherosclerosis.

Conclusions:

• The high prevalence of atherosclerotic manifestations in dialysis patients is attributed to a combination of traditional and non-traditional risk factors.
• Microinflammation, disturbed phosphate metabolism, and other non-traditional factors play a crucial role in accelerating atherosclerosis.
• Addressing these comprehensive risk factors is essential for managing cardiovascular health in dialysis populations.