Change in cerebral blood flow velocity pattern during induced hypotension: a non-invasive indicator of increased intracranial pressure?
A neurologically intact patient underwent spinal instrumentation under hypotensive anaesthesia 10 days after a mild closed head injury. Transcranial Doppler monitoring of the right middle cerebral artery revealed an abnormal flow pattern, suggesting increased intracranial pressure, impaired autoregulation, or both. Patients with a mild head injury may have altered intracranial haemodynamics and the time course of recovery from these changes is unknown.
Lam
A M
AM
Department of Anesthesiology, Harborview Medical Center, University of Washington, Seattle 98104.
D000328:Adult; D000768:Anesthesia, General; D001783:Blood Flow Velocity / Q000502:physiology; D002560:Cerebrovascular Circulation / Q000502:physiology*; D006259:Craniocerebral Trauma / Q000503:physiopathology*; D005592:Fracture Fixation; D006801:Humans; D007023:Hypotension, Controlled / Q000009:adverse effects; D007427:Intracranial Pressure / Q000502:physiology*; D007431:Intraoperative Complications / Q000209:etiology; D008159:Lumbar Vertebrae / Q000293:injuries; D008297:Male; D013904:Thoracic Vertebrae / Q000293:injuries; D013997:Time Factors