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The Effects of Lowering Low-density Lipoprotein Cholesterol Levels to New Targets on Cardiovascular Complications in Peritoneal Dialysis Patients

2014-08-27 03:18:29 | BioPortfolio

Summary

Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in dialysis patients. Although significant improvements have been made in the management of CVD in the general population, it is not known whether these interventions would result in similar benefits in end stage renal disease patients.

Clinical studies conducted in the general population and in patients with established cardiovascular disease have found a strong independent association between lipid lowering, primarily LDL-cholesterol, and the risk of all-cause and cardiovascular mortality.

Therefore the National Cholesterol Education Panel (NCEP) has provided guidelines to lower LDL cholesterol levels to a goal of ≤100 mg/dl in patients with major risk factors of coronary heart disease. Moreover, the recent Adult Treatment Panel III (ATP III) guidelines provide an option to lower LDL cholesterol levels to a goal of <70 mg/dl in patients with very high risks for coronary heart disease.

The National Kidney Foundation K/DOQI guideline regards dialysis patients as having high risks for coronary heart disease and consequently recommends the LDL cholesterol level to be maintained under 100 mg/dl. This recommendation is in parallel to the NCEP ATP III guideline which has been proposed for the general population. However, data regarding cholesterol levels in dialysis patients have been conflicting, with some observational studies demonstrating and some not demonstrating a clear, relationship between LDL and cardiovascular end-points. In addition few randomized studies have been conducted in CKD patients.

An observational retrospective analysis of patients receiving hemodialysis, the U.S. Renal Data System Morbidity and Mortality Study, showed that the risk for cardiovascular mortality was decreased by 36 percent among patients receiving statins, compared to those who did not. Whereas, a most recent large prospective study in diabetic hemodialysis patients failed to demonstrate a significant reduction in cardiovascular endpoints with statin therapy.

Moreover, although HD and PD patients both develop chronic hypervolemia and inflammation as common findings, the relationship between risk factors and outcome may differ between these two treatment methods. The likely role of glucose from the dialysate in causing dyslipidemia in PD patients inherits a different strength of association between cholesterol level and outcome in HD and PD patients.

Therefore, this study aims to examine the clinical outcomes of treating chronic peritoneal dialysis patients with dyslipidemia to lower cholesterol levels, randomly assigning patients to either aggressive targets of LDL cholesterol of 70 mg/dl or current standard targets of LDLD cholesterol of 100 mg/dl.

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Hypercholesterolemia

Intervention

LDL-cholesterol

Location

Severance Hospital
Seoul
Korea, Republic of

Status

Recruiting

Source

Clinical Research Center for End Stage Renal Disease, Korea

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:18:29-0400

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