Reduced Jet Velocity in Venous Flow after CSF Drainage: Assessing Hemodynamic Causes of Pulsatile Tinnitus.

H Haraldsson Joseph Ryan Leach E I Kao Alexandra Wright S G Ammanuel R S Khangura M K Ballweber C T Chin Vinil N Shah Karl Meisel David Saloner Matthew Robert Amans

Published in: AJNR. American journal of neuroradiology (2019)

Our results show a lumbar puncture-induced reduction in venous peak velocity without a concomitant reduction in flow rate. We hypothesize that the reduction is caused by the expansion of the stenosis after lumbar puncture. Our results further show a correlation between the peak velocity and pulsatile tinnitus intensity, suggesting the flow jet to be instrumental in the development of sound.

Keyphrases

blood flow
ultrasound guided
minimally invasive
high frequency
hearing loss
diabetic rats
oxidative stress
cerebrospinal fluid