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Med Princ Pract. 2014;23(2):119-24. doi: 10.1159/000358172. Epub 2014 Jan 23.

Sustained low-efficiency daily diafiltration for diabetic nephropathy patients with acute kidney injury.

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Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, China.



To investigate the efficacy, safety and cost of treating patients with acute kidney injury (AKI) and diabetic nephropathy (DN) with continuous renal replacement therapy (CRRT) or sustained low-efficiency daily diafiltration with hemofiltration (SLEDD-f).


Medical records of patients with AKI/DN from January 2006 to December 2012 were reviewed. Fifty-five patients who received CRRT and 52 who received SLEDD-f were included in the study. CRRT and SLEDD-f were performed for 20-72 h per session and 8-10 h per session, respectively. Mortality and renal function recovery rates were evaluated 30 days after the initiation of renal replacement therapy (RRT) and APACHE-II and SOFA scores, anticoagulant dose, inflammatory indices and cost were calculated at baseline and at the end of RRT.


Of the 55 patients treated with CRRT, 49 (89.1%) had a 30-day survival rate and 30 (54.5%) had a 30-day renal recovery rate. Of the 52 patients with SLEDD-f, these rates were 92.3% (n = 48) and 61.5% (n = 32), respectively. The dosage of low-molecular-weight heparin in the CRRT and SLEDD-f groups was 15,230 ± 1,460 and 6,320 ± 490 U/day, respectively. The cost of hemopurification and the total cost for patients treated with CRRT was CNY 28,628 ± 5,576 (USD 4,210 ± 820) and CNY 38,828 ± 6,324 (USD 5,710 ± 930), respectively. These were higher than those for patients treated with SLEDD-f at CNY 13,260 ± 1,564 (USD 1,950 ± 230) and CNY 19,720 ± 2,652 (USD 2,900 ± 390), respectively.


SLEDD-f offered a similar chance of renal recovery and also had further advantages such as a lower heparin dosage, a shorter therapy time and lower hospitalization costs for patients than CRRT. Studies with larger, randomized sample sizes are needed to confirm these findings.

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