Transcranial Doppler ultrasonography (TCD) in ventilated head injured patients: correlation with stable xenon-enhanced CT.
Disturbance of cerebral vasomotor regulation has been shown to be associated with the severity of traumatic brain injury (TBI). The transient hyperaemic response (THR) test is a test of the pressure autoregulatory response in terms of cerebral blood flow velocity after a brief carotid artery compression. Correlating with the test of cerebral vascular reactivity (CVR) to carbon dioxide by means of passive hyperventilation suggested that the THR test is a simple clinical test for the assessment of cerebral haemodynamic status in head-injured patients.
Ng
S C
SC
Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong.
Poon
W S
WS
Chan
M T
MT
Lam
J M
JM
Lam
W
W
Metreweli
C
C
D000293:Adolescent; D000328:Adult; D000368:Aged; D001921:Brain / Q000098:blood supply*; D001929:Brain Edema / Q000175:diagnosis* / Q000503:physiopathology; D001930:Brain Injuries / Q000175:diagnosis* / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006706:Homeostasis / Q000502:physiology; D006801:Humans; D006940:Hyperemia / Q000175:diagnosis / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012039:Regional Blood Flow / Q000502:physiology; D012121:Respiration, Artificial; D014057:Tomography, X-Ray Computed; D017585:Ultrasonography, Doppler, Transcranial; D014655:Vascular Resistance / Q000502:physiology