Abstract

Objective To investigate the effect and outcome of critically illness with acute kidney injury (AKI) treated with continuous veno-venous hemodiafiltration (CVVHDF) in children.Methods Twenty-four cases of critically illness with AKI were treated with CVVHDF in our pediatric intensive care unit from Jan 2008 to Dec 2010.The levels of creatinine (Cr),blood urea nitrogen (BUN),K +,Na + and HCO3- were observed before CVVHDF and 6,12,24,48,72 h after CVVHDF.Results Catheter was successfully established for CVVHDF in 24 cases of AKI.The average duration of CVVHDF was 46 h ( 16 ~142 h).The blood levels of Cr and BUN were significantly decreased at 6 h after CVVHDF [ ( 196.3 ±112.4) μmol/L,( 13.3 ± 8.5 ) mmol/L] and 12 h after CVVHDF [ ( 106.1 ± 84.2) μ mol/L,( 10.2 ± 9.7 )mmol/L] as compared to those before treatment [ (340.6 ±298.2) μmol/L,(31.6 ± 11.3) mmol/L] (P <0.05,P < 0.01 ).After 48 h of CVVHDF,the Cr,BUN returned to normal range.The imbalance of blood K +,Na +,and HCO3- improved at 6 h after CVVHDF and returned to nomal levels at 24 h.Total 28 d fatality rate was 29.2% (7/24),and all death cases were complicated with multiple organ dysfunction syndrome.Conclusion CVVHDF therapy for AKI can quickly clear Cr,BUN and excess water,correct electrolyte disorders,improve kidney function in children. Key words: Continuous veno-venous hemodiafiltration; Acute kidney injury; Multiple organ dysfunction syndrome; Children

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