title: Chronic progressive renal failure. Rate of progression monitored by change of serum creatinine concentration.
abstract: The rise of serum creatinine levels during were renal failure progressing to end-stage renal disease was studied in 30 children. In 20 patients the rise was a steady one and followed a mathematical model, best expressed by the regression line calculated from reciprocal values. Ten patients had widely fluctuating values that did not fit any of the available mathematical models; however, in three patients, the curve had two slopes. The initially slow rate of progression changed to a more rapid, steady rise when a creatinine level of 2 to 3 mg/dL was reached. Therefore, in 23 of 30 patients, the time at which a serum creatinine values of 10 mg/dL would be reached could be predicted with acceptable accuracy based on this calculation or using a graphic plot. In the terminal phase of renal failure, the serum creatinine value progressed from 7 to 10 mg/dL in less than four months in 80% of the cases.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003404:Creatinine / Q000097:blood*; D003554:Cystinosis / Q000097:blood / Q000150:complications; D005260:Female; D005921:Glomerulonephritis / Q000097:blood; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007668:Kidney / Q000002:abnormalities; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000209:etiology; D008297:Male; D008433:Mathematics; D008991:Monitoring, Physiologic
chemical_list: D003404:Creatinine