study emphasizes that a new parameter, the global outflow angle, can be predictive of recanalization for MCA bifurcation aneurysms treated by EVT 1).
A small GOA was a significant predictor of silent ischemic events after coil embolization for unruptured DACA aneurysms. While some patients can be treated safely with minimally invasive coil embolization, it is necessary to consider surgical clipping in patients at high risk of thromboembolic events with coil embolization 2).
1)
de La Torre Y, Velasco S, Tasu JP, Wanpouille C, Chan P, Velasco R, Sztark G, Ingrand P, Boucebci S. Impact of the global outflow angle on recanalization after endovascular treatment of middle cerebral artery bifurcation aneurysms. J Neurointerv Surg. 2018 Dec;10(12):1174-1178. doi: 10.1136/neurintsurg-2018-013803. Epub 2018 May 25. PMID: 29802164.
2)
Suzuki R, Takigawa T, Nagaishi M, Hyodo A, Suzuki K. Global outflow angle influences silent ischemic events in coil embolization for unruptured distal anterior cerebral artery aneurysms. Interv Neuroradiol. 2022 May 29:15910199221104915. doi: 10.1177/15910199221104915. Epub ahead of print. PMID: 35635226.