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TABLE 1:

Physiologic parameters for animals of group A (MCA occlusion, blood replaced)

ParameterBaseline30 min Post-MCA Occlusion30 min Post-reperfusion
AOPmax (mmHg)126 ± 19106 ± 22*101 ± 19*
AOPmin (mmHg)84 ± 2175 ± 20*68 ± 9*
Heart rate (beats/min)211 ± 27245 ± 39*246 ± 48*
Blood pH7.35 ± 0.037.39 ± 0.047.37 ± 0.03
Pco2 (mmHg)38.9 ± 3.833.0 ± 6.434.4 ± 7.6
Po2 (mmHg)98.0 ± 19.293.6 ± 23.992.7 ± 15.0
HCO3 (mM/L)21.1 ± 2.620.9 ± 2.921.2 ± 3.3
SO2 (%)94.2 ± 3.492.6 ± 3.793.2 ± 2.7
Hematocrit (%)41.3 ± 3.541.7 ± 5.142.0 ± 6.7
K+ (mM/L)3.9 ± 0.24.9 ± 0.4*
Na+ (mM/L)138 ± 1.6136 ± 1.8
Ca++ (mM/L)1.2 ± 0.081.2 ± 0.07
  • Note.—MCA indicates middle cerebral artery; AOPmax, maximal aortic pressure; AOPmin, minimal aortic pressure.

  • * P < .05 compared to baseline.