Autoregulation of cerebral blood flow in orthostatic hypotension.

  title={Autoregulation of cerebral blood flow in orthostatic hypotension.},
  author={Vera Novak and Primo{\vz} Novak and Judith M Spies and Phillip A. Low},
  volume={29 1},
BACKGROUND AND PURPOSE We sought to evaluate cerebral autoregulation in patients with orthostatic hypotension (OH). METHODS We studied 21 patients (aged 52 to 78 years) with neurogenic OH during 80 degrees head-up tilt. Blood flow velocities (BFV) from the middle cerebral artery were continuously monitored with transcranial Doppler sonography, as were heart rate, blood pressure (BP), cardiac output, stroke volume, CO2, total peripheral resistance, and cerebrovascular resistance. RESULTS All… CONTINUE READING
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