Endovascular treatment of micro-intracranial aneurysms: adverse factors of micro-catheterization and its relevant managements / 中华外科杂志

ABSTRACT

<p><b>OBJECTIVES</b>To investigate adverse factors that may hinder successful placement and stabilization of the microcatheter during endovascular therapy of micro-intracranial aneurysms (≤ 3 mm in maximum diameter), and to explore the relevant managements.</p><p><b>METHODS</b>Forty-six patients with fifty-one micro-intracranial aneurysms treated by endovascular therapy from June 2001 to October 2009 were retrospectively analyzed for their intervention data.</p><p><b>RESULTS</b>Adverse factors of optimal micro-catheterization mainly included, tortuosity of the proximal vessels (PVs) and the parent artery (PA), relative large gap in diameter among the PVs, the PA and the microcatheter, relative large divergence in direction among the PVs, the PA and the aneurysm dome, and stent deployed in the PA.</p><p><b>CONCLUSIONS</b>Carefully considering the direction of the PVs and the PA, the aneurysm's location and dome orientation, choosing the microcatheter and microwire after balancing among their physical properties, as well as utilizing balloon and/or stent assistance, can facilitate micro-catheterization during endovascular treatment of micro-intracranial aneurysms.</p>