• Patrick Meybohm, Erol Cavus, Volker Dörges, Bernd Weber, Karl-Heinz Stadlbauer, Volker Wenzel, Jens Scholz, Martin Steffen, and Berthold Bein.
• Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Schwanenweg 21, 24105 Kiel, Germany. meybohm@anaesthesie.uni-kiel.de
• Resuscitation. 2008 Mar 1;76(3):449-56.

BackgroundThe present study was designed to evaluate the effect of conventional fluid resuscitation and small volume resuscitation alone and combined with arginine vasopressin (AVP) on cerebral perfusion pressure (CPP) and protein S100B during experimental haemorrhagic shock.Material And MethodsThirty anaesthetised pigs underwent a penetrating liver trauma. Following haemodynamic decompensation, pigs received either (1) a combination of crystalloid (40 mL kg(-1)) and colloid (20 mL kg(-1)) solutions (fluid, n=10), (2) hypertonic-hyperoncotic solution (HHS; 4 mL kg(-1)) combined with normal saline (HHS+NS; n=10) or (3) HHS combined with AVP (0.2 U kg(-1) followed by an infusion of 2 U kg(-1)h(-1); HHS+AVP; n=10).ResultsCompared to baseline, CPP decreased and S100B levels increased significantly at haemodynamic decompensation (S100B: fluid, 0.52+/-0.23 microg L(-1) vs. 0.85+/-0.37 microg L(-1), p<0.05; HHS+NS, 0.47+/-0.18 microg L(-1) vs. 0.90+/-0.33 microg L(-1), p<0.05; HHS+AVP, 0.53+/-0.18 microg L(-1) vs. 0.90+/-0.39 microg L(-1), p<0.01). During the initial 10 min of therapy, CPP of HHS+NS was significantly higher compared to the fluid group, increased more rapidly in the HHS+AVP group, but was not significantly different thereafter. S100B levels decreased close to baseline values (p<0.001), and did not differ between groups.ConclusionHHS+AVP resulted in higher CPP compared to fluid and HHS+NS in the initial phase of therapy, but did not differ thereafter. Haemorrhage-induced hypotension yielded increased S100B levels that were comparable in groups throughout the study period.

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