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Table 5 Effect of Mental Stress on Middle Cerebral Artery Flow Velocities in Normal and Hypertensive Subjects.

From: Cerebrovascular mental stress reactivity is impaired in hypertension

  Normal (n = 10) Hypertension (n = 12)
MCA Doppler Velocities (cm/sec) Baseline Peak Baseline Peak
Peak Systolic Velocity 84 ± 22 95 ± 22* 70 ± 18 73 ± 22
End Diastolic Velocity 42 ± 12 49 ± 14* 34 ± 14 37 ± 14
Time Averaged Mean Velocity 30 ± 13 39 ± 13* 25 ± 9 26 ± 9
  1. Values are mean ± SD.*p < 0.05 vs baseline.