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[Lipoprotein Lp(a) in patients with chronic renal insufficiency on hemodialysis]
Insights
Patients with chronic renal failure undergoing hemodialysis show higher levels of lipoprotein Lp(a), a risk factor for coronary artery disease. This suggests Lp(a) measurement is crucial for assessing cardiovascular risk in these patients.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Clinical Chemistry
Context:
- Chronic renal failure (CRF) patients undergoing hemodialysis (HD) exhibit altered lipid profiles.
- Elevated lipoprotein Lp(a) is a known risk factor for coronary artery disease (CAD).
Purpose:
- To investigate plasma levels of lipoprotein Lp(a), total cholesterol, high-density lipoprotein cholesterol (C-HDL), and triglycerides (TG) in HD patients.
- To compare lipid profiles between HD patients and a healthy control group.
Summary:
- HD patients showed significantly higher prevalence of elevated Lp(a) (greater than 30 mg/dl) compared to controls (p < 0.05).
- Hypertriglyceridemia and reduced C-HDL levels were also significantly more prevalent in the HD group (p < 0.001).
- These findings align with existing research on dyslipidemia in CRF patients.
Impact:
- Suggests that routine Lp(a) measurement can aid in better characterizing the lipid profile of hemodialysis patients.
- Highlights the increased cardiovascular risk associated with elevated Lp(a) in this specific patient population.
- Emphasizes the need for comprehensive lipid management strategies in patients with chronic renal failure.
Abstract:
An increased concentration of lipoprotein Lp(a) is considered a risk factor for coronary artery disease. In the present study, the plasma levels of Lp(a), total cholesterol, cholesterol bound to high density lipoproteins (C-HDL), and triglycerides (TG) were measured in 50 patients with chronic renal failure treated with hemodialysis (HD). The results were compared with those from a control group constituted by 46 individuals. Hypertriglyceridemia was detected in 34% of the HD patients and in none of the controls (p less than 0.001); also, a significant reduction of C-HDL level was found in the HD group as compared with controls (p less than 0.001). These two results are in agreement with previously reported data. The outstanding result of our study was the higher prevalence of positive Lp(a) (greater than 30 mg/dl) in the HD group as compared with controls (p less than 0.05). As the increase in Lp(a) is a risk factor for coronary artery disease, we suggest that its measurement may be helpful to delineate the serum lipid profile of these patients.