Acceleration of blood flow as an indicator of improved hemodynamics after indirect bypass surgery in Moyamoya disease

Moyamoya disease is characterized by a steno-occlusive lesion in the distal internal carotid artery, with development of a range of collateral networks. Long-term hemodynamic overstress in Moyamoya disease can induce pathological changes in the dilated collateral vessels, including the lenticulostriate arteries, choroidal arteries, and other basal vessels [1 –3]. The development of collateral vessels can increase the risk of rupture, which leads to hemorrhagic stroke. This hemodynamic stress is relieved by bypass flow surgery, which reduces the burden on the Moyamoya vessels to maintain cerebral blood flow.

Source: Clinical Neurology and Neurosurgery - June 26, 2017 Category: Neurosurgery Authors: Sayaka Ogawa, Toshiyasu Ogata, Hirofumi Shimada, Hiroshi Abe, Toshiro Katsuta, Kenji Fukuda, Tooru Inoue Source Type: research