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  • Title: [Effects of continuous veno-venous hemofiltration on the hemodynamics of sheep with endotoxic shock].
    Author: Hu ZJ, Liu LX, Sun LX, Li Y.
    Journal: Zhongguo Wei Zhong Bing Ji Jiu Yi Xue; 2005 Apr; 17(4):234-7. PubMed ID: 15836830.
    Abstract:
    OBJECTIVE: To study the influence of continuous veno-venous hemofiltration (CVVH) on the hemodynamics and the prognosis of sheep with endotoxic shock. METHODS: Endotoxic shock was induced by intravenous infusion of lipopolysaccharide, L-2880, to sheep, and the animals were randomly divided to control group (NHF, endotoxin only) or treatment group (HF, endotoxin+CVVH). In the latter groups a zero-balanced CVVH was instituted with an ultrafiltration rate of 40 ml x kg(-1) x h(-1) and a blood flow rate of 80 ml/min. The hemodynamic parameters were monitored. RESULTS: After the administration of endotoxin, the mean arterial pressure (MAP) was decreased significantly, while mean pulmonary artery pressure (MPAP) and cardiac index (CI) increased significantly in both groups (P<0.05 or P<0.01). With CVVH, MAP and stroke volume (SV) were increased significantly, and were significantly higher than that of NHF group (P<0.05 or P<0.01). CI declined progressively in NHF group and significantly lower than that of HF group, in which there was no significant change(P<0.05). No significant difference in MPAP was found between two groups (P>0.05). Moreover, plasma lactate levels were lower in NHF group than in HF group (P<0.05). After 5 hours, the sheep in HF group all survived, and 2 sheep of NHF group died. CONCLUSION: Intravenous infusion of endotoxin could produce endotoxic shock in sheep. CVVH was shown to have a beneficial effect on the hemodynamics, and it gave a better prognosis in endotoxic, indicating that it might be important method to treat endotoxic shock.
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