Jugular venous reflux is associated with perihematomal edema after intracerebral hemorrhage, May 2017

"...Conclusions

The current findings demonstrated that JVR is strongly associated with PHE volume after ICH. Although the exact mechanism remains unclear, it is plausible that JVR retrogradely transmits venous hypertension into the brain...."

full paper http://downloads.hindawi.com/journals/bmri/aip/7514639.pdf