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High-flux Hemodialysis Prolongs Survival In Many Patients With Chronic Kidney Disease

Date:
February 20, 2009
Source:
American Society of Nephrology
Summary:
High-flux hemodialysis (which removes large toxins) reduces the risk of premature death in many patients with chronic kidney disease (CKD), according to a new study. The results suggest that this procedure could be beneficial for those with poor prognoses and those with diabetes.

High-flux hemodialysis (which removes large toxins) reduces the risk of premature death in many patients with chronic kidney disease (CKD), according to a new study. The results suggest that this procedure could be beneficial for those with poor prognoses and those with diabetes.

In patients with CKD, toxins accumulate in the blood because the kidneys lose their ability to eliminate these substances sufficiently. CKD patients undergo either high-flux or low-flux hemodialysis to clear these toxins from the body (high-flux membranes have larger pores that allow for the removal of toxins of greater molecular size). While epidemiological studies have indicated that treatment with high-flux hemodialysis improved survival, the true potential of this treatment on prolonging life has not been clearly determined.

Francesco Locatelli, MD (A. Manzoni Hospital, Lecco, Italy), and his colleagues in eight European countries conducted a clinical trial to investigate the effect of high-flux hemodialysis on patient survival. In a randomized clinical trial called the Membrane Permeability Outcome (MPO) study, they enrolled 738 hemodialysis patients and assigned them to either low-flux or high-flux hemodialysis. Patients were followed for 3 to 7.5 years; in the entire study group the researchers did not detect a significant survival benefit with either high-flux or low-flux hemodialysis, but the use of high-flux membranes conferred a significant survival benefit in higher-risk patients. In addition, patients with diabetes showed a survival benefit with high-flux dialysis.

These findings could lead to potentially valuable clinical benefits for patients with CKD. However, because the benefits in diabetic patients were found only after a post-hoc analysis of the data, Dr. Locatelli's team noted that their results in diabetic patients need to be confirmed by other clinical trials.

Support for the organization and implementation of the study as well as a grant for statistical analysis was provided by Fresenius Medical Care. Dr. Locatelli received lecture fees from Bellco, Fresenius Medical Care and Gambro-Hospal. Dr. Stefan H. Jacobson consulted for or received lecture fees from Baxter Health Care, Fresenius Medical Care and Gambro. The other authors declared no conflict of interest related to this study.


Story Source:

The above story is based on materials provided by American Society of Nephrology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Effect of Membrane Permeability on Survival of Hemodialysis Patients. Journal of the American Society Nephrology, March 2009 DOI: 10.1681/ASN.2008060590

Cite This Page:

American Society of Nephrology. "High-flux Hemodialysis Prolongs Survival In Many Patients With Chronic Kidney Disease." ScienceDaily. ScienceDaily, 20 February 2009. <www.sciencedaily.com/releases/2009/02/090220121802.htm>.
American Society of Nephrology. (2009, February 20). High-flux Hemodialysis Prolongs Survival In Many Patients With Chronic Kidney Disease. ScienceDaily. Retrieved August 2, 2014 from www.sciencedaily.com/releases/2009/02/090220121802.htm
American Society of Nephrology. "High-flux Hemodialysis Prolongs Survival In Many Patients With Chronic Kidney Disease." ScienceDaily. www.sciencedaily.com/releases/2009/02/090220121802.htm (accessed August 2, 2014).

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