Comparative examination of Polysulfone (PS) membrane hemofilter and cellulose triacetate membrane hemofilter in Continuous Hemodiafiltration (CHDF)

Abstract

【Introduction】 We compared the life times of polysulfone (following PS) membrane hemofilter with cellulose triacetate (following, CTA) membrane hemofilter for continuous hemodiafiltraion (CHDF) under renal indication. 【Method】 We performed a retrospective observational study for patients who underwent CHDF for renal indication from August, 2011 to July, 2012 for filter life time analysis using trans membrane pressure (TMP) increasing rate. 【Result】 The number of PS membrane enrolled was 107, and the number of CTA membrane was 113. The average increasing rate of TMP for PS and CTA membranes at the time of membrane exchange were 0.52±0.54 and 0.83±0.71 (p=0.002), respectively. 【Consideration】 The life times were equivalent for PS and CTA membranes, while PS membrane showed a significantly lower increasing rate of TMP. 【Conclusion】 The PS membrane may have superior life time when assessed by TMP increasing rate.