• Resuscitation · May 2012

    Randomized Controlled Trial

    Effects of continuous haemofiltration on serum enzyme concentrations, endotoxemia, homeostasis and survival in dogs with severe heat stroke.

    • Guang-ming Chen, Hui-na Xu, Li-fang Gao, Jin-fu Lu, Wen-rui Wang, and Jian Chen.
    • Fuzhou General Hospital, Nanjing Military Command, Fuzhou 350025, China.
    • Resuscitation. 2012 May 1;83(5):657-62.

    AimTo examine the effectiveness of continuous haemofiltration as a treatment for severe heat stroke in dogs.MethodsDogs were randomly allocated to a control or continuous haemofiltration group (both n=8). Heat stroke was induced by placing anaesthetised dogs in a high temperature cabin simulator. Upon confirmation of heat stroke (rectal temperature>42 °C, mean arterial pressure (MAP) decrease>25 mmHg), dogs were removed from the chamber and continuous haemofiltration was initiated and continued for 3h for dogs in the continuous haemofiltration group. Dogs in the control group were observed at room temperature.ResultsRectal temperature, haemodynamics, pH, blood gases and electrolyte concentrations rapidly returned to baseline in the continuous haemofiltration group, but not the control group. After 3h, rectal temperature was 36.68±0.51 °C in the continuous haemofiltration group and 39.83±1.10 °C in the control group (P<0.05). Continuous haemofiltration prevented endotoxin and all serum enzyme concentrations from increasing and caused malondialdehyde concentrations to decrease. After 3h, endotoxin concentrations were 0.14±0.02 EU ml(-1) in the continuous haemofiltration group and 0.23±0.05 EU ml(-1) in the control group (P=0.003), while malondialdehyde concentrations were 4.86±0.61 mmol l(-1) in the continuous haemofiltration group and 8.63±0.66 mmol l(-1) in the control group (P<0.001). Five dogs died in the control group within 3h, whereas no dogs died in the continuous haemofiltration group.ConclusionsContinuous haemofiltration rapidly reduced body temperature, normalised haemodynamics and electrolytes, improved serum enzyme concentrations and increased survival in dogs with heat stroke. Continuous haemofiltration may be an effective treatment for heat stroke.Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

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