Renal function and serum albumin at the start of dialysis in 514 Chinese ESRD in-patients

Hong Liu, Youming Peng, Fuyou Liu, Haiqing Xiao, Xing Chen, Anlan Huang, Yinghong Liu
Renal Failure 2008, 30 (7): 685-90

BACKGROUND: The dialysis population has grown rapidly in recent decades. Despite the high cost and poor outcomes of dialysis treatment for ESRD, there are scant data about the level of renal function and the relationship of renal function and serum albumin at the start of dialysis in Chinese ESRD patients.

METHOD: We report the level of serum creatinine (Scr), glomerular filtration rate (GFR), and serum albumin (Salb) in 514 ESRD in-patients who began their dialysis treatment between January 2001 through December 2007 at two large dialysis centers in Changsha, Hunan, China. Data were obtained through reviewing the case records of all 514 patients. GFR was predicted by an equation developed from the Modification of Diet in Renal Disease Study. In addition, serum albumin was analyzed in relation to levels of predicted GFR.

RESULTS: The mean (SD) and median predialysis serum creatinine was 1121.92 +/- 458.24 and 1032 micromol/L. The mean (SD) and median predicted GFR was 4.98 +/- 2.24 and 4.47mL/min/1.73m(2). The proportion of patients with predicted GFR of >10, 5 to 10, and <5 mL/min/1.73m(2) was 3.7, 36.2, and 60.1%, respectively. The mean predicted GFR was significantly lower among younger patients, uninsured patients, unemployed or farmer patients, patients who were employed, students, patients who selected hemodialysis, patients with ESRD caused by diseases other than diabetes, patients with BUN above the mean, and patients with hemoglobulin beneath the mean. Compared with patients who started with GFR >5mL/min, the patients who started with GFR <or=5mL/min had significantly higher plasma urea and creatinine levels but significantly lower creatinine clearance (mL/min per 1.73m(2)) and parameters of nutritional status, such as serum albumin, body weight, and BMI.

CONCLUSION: A wide variation existed in renal function at the initiation of dialysis in partial Chinese ESRD patients. Most patients start dialysis at very low levels of predicted GFR. The nutritional status in patients who start dialysis early was better than those in patients who start dialysis when GFR <or= 5mL/min. Further studies are needed to analyze the impact of level of renal function and nutritional status at the start of dialysis on the outcomes of ESRD.

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