Impact of Aneurysm Size and Flow Diverter Use on Outcomes After Endovascular Therapy of Unruptured Paraclinoid Aneurysms.

Abstract

Flow diverters (FDs) are increasingly used for unruptured paraclinoid aneurysms, especially large or giant ones. However, their benefit over conventional endovascular therapy remains unclear. This study evaluated outcomes after endovascular therapy of unruptured paraclinoid aneurysms, with aneurysm size as the primary exposure, and further examined the modifying effect of FD use. We analyzed data of patients with unruptured paraclinoid aneurysms from the Japanese Registry of Neuroendovascular Th