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Figure 2 | Critical Care

Figure 2

From: Anti-PF4/heparin antibodies associated with repeated hemofiltration-filter clotting: a retrospective study

Figure 2

Duration and efficiency of continuous veno-venous hemofiltration (CVVH) sessions. Boxes represent medians, interquartile ranges, and 10th and 90th percentiles of mean duration of CVVH sessions (upper panel) and urea reduction ratios ([(urea before – urea after)/urea before] × 100, lower panel) observed in PF4+ (n = 7) and PF4- (n = 21) patients when using unfractionated heparin (50 and 132 sessions for PF4+ and PF4- patients, respectively) and in PF4+ patients when using danaparoid sodium for anticoagulation (17 sessions). *P < 0.05 compared with PF4+ (using a Mann-Whitney test); #P = 0.027 compared with PF4+ (using a Wilcoxon rank test). There was no difference between PF4- and danaparoid CVVH durations (P = 0.17) or urea reduction (P = 0.27). PF4-, anti-PF4/heparin antibody-negative; PF4+, anti-PF4/heparin antibody-positive.

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