Figure 4

Cerebral ischemia increases neutrophils and monocyte counts. (a) Immediately after cerebral ischemia (i.e., DHCA), neutrophil and monocyte counts are increased in the venous sample compared to arterial (P = 0.03 and P = 0.02, respectively). (b) In continuous cerebral perfusion (i.e., ACP) there is no difference in neutrophil and monocyte counts. (c) To rule out the effect of hyperviscosity in the venous sample after cerebral ischemia, hematocrit and thrombocyte numbers were assessed revealing no difference after DHCA. (d) Also after ACP there is no difference in hematocrit and thrombocyte number. ACP, antegrade cerebral perfusion; DHCA, deep hypothermic circulatory arrest.