Fibrinogen and calcium x phosphate product are predictors of cardiovascular events in the CAPD population.
2005
OBJECTIVE: Plasma fibrinogen (Fib) and calcium x phosphate product have emerged as cardiovascular (CV) event predictors in hemodialysis (HD) patients, but their role in peritoneal dialysis (PD) is less studied. DESIGN AND SUBJECTS: We investigated whether Fib and calcium x phosphate product predict CV events in a prospective cohort study of 47 continuous ambulatory PD (CAPD) patients (mean follow-up 34.6 months). RESULTS: During the follow-up, 29 patients experienced CV events, which were fatal in 11 of them. Plasma Fib was markedly elevated in the entire population studied (median 612 mg/dL inter-quartile range (IQ): 566-718 mg/dL). On univariate analysis, Fib was higher (p=0.02) in those patients who had fatal or non-fatal CV events (median 654 mg/dL, IQ: 577-801) than in event-free patients (median 579 mg/dL, IQ: 532-629). Patients with incident CV events also tended to have higher calcium x phosphate product (51.6 +/- 12.8 vs. 43.8 +/- 13.9 mg2/dL2, p=0.06). On multivariate Cox's regression analyses, including traditional risk factors and history of previous CV events, Fib (hazard ratio (HR) associated with 100 mg/dL increase in plasma Fib 1.29 95% confidence interval (CI) 1.03-1.63 (p=0.03)) and calcium x phosphate product (HR associated with a 5 mg2/dL2 increase 1.25 95% CI 1.05-1.49 (p=0.01)) emerged as independent CV event predictors. CONCLUSIONS: Calcium x phosphate product and Fib are CV event predictors in CAPD patients.
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