Abstract
Although procalcitonin (PCT) has been described as a new marker of infection and inflammation, it has not been extensively studied in dialysis patients. We measured plasma PCT levels in 62 patients on maintenance haemodialysis (30 M/32 F, age 61.8+/-17.1 years, on dialysis for 75+/-93 months, 12 h/week, with a Kt/V of 1.53+/-0.31, high-flux membrane being used in 25 patients and low-flux in 37 patients, without reuse). PCT levels were compared with other markers of inflammation and nutritional status, including C-reactive protein (CRP), fibrinogen, interleukin-6 (IL-6), leukocytes, urea, creatinine, albumin, prealbumin, normalized protein catabolic rate (nPCR), haemoglobin (Hb), and epoetin (Epo) doses. Patients were divided into different groups according to their infectious and vascular status. PCT plasma levels before dialysis were 0.69+/-0.81 ng/ml. Fifty-seven per cent of PCT values were higher than the upper normal limit of 0.5 ng/ml. CRP and PCT concentrations were high in patients with a current infection, while IL-6 values were elevated in all patients regardless of infection status. Plasma CRP concentrations before dialysis were 21.2+/-31.4 mg/l, and 70% of these values were higher than the upper normal limit. CRP, PC...Continue Reading
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