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eJournal Club - Hemodiafiltration

Posted Jan 21 2013 12:00am
A few years ago, a unit that I worked at started using hemodiafiltration (HDF) routinely for the first time. Prior to starting our patients, we visited another unit where they had been using HDF for a few years and interviewed some patients who had undergone both methods. The patients uniformly said that they felt better on HDF than they had before on regular HD. Of course, part of this may have been psychological - the fact that they knew that they were getting a new, "special" treatment.

HDF works by combining diffusion with convection and is known to clear middle molecules better than HD alone. Unfortunately however, some of the proposed benefits of HDF have not played out as expected. HDF has been shown to have no mortality or CVD benefit over HD. Still, there were hints from various studies that there may be a benefit in terms of health-related quality of life (HRQOL) for patients on HDF. For patients on dialysis, this would be a big deal. This month's article highlighted in eJournal club attempted to answer this question.

This was a randomized trial using data from the CONTRAST study comparing HD with HDF. HRQOL was a prespecified secondary outcome. Over an average of two years follow-up all domains of HRQOL declined except for overall health which improved in the HDF patients although there was no significant difference from the HD patients. These results were disappointing.

Head over the eJournal Club to continue the discussion.
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