Figure 1From: Citrate anticoagulation versus systemic heparinisation in continuous venovenous hemofiltration in critically ill patients with acute kidney injury: a multi-center randomized clinical trial Patient survival. (a) Survival 28 days after initiation of continuous venovenous haemofiltration (CVVH). (b) Survival 90 days after initiation of CVVH. Continuous line represents citrate, dotted line represents heparin.Back to article page