Efficacy and Limitations of Stent-Free Coil Embolization for Internal Carotid–Posterior Communicating Artery Aneurysms, Primarily Based on the Double-Catheter Technique: A Study Reflecting Current Endovascular Practice

Objective: Stent-free coil embolization has advantages such as a low periprocedural risk and elimination of the need for antiplatelet therapy. Recent advancements in coil technology and adjunctive techniques, including the double-catheter method, may have contributed to improved outcomes. This study aimed to evaluate the safety, efficacy, and limitations of stent-free coil embolization for internal carotid–posterior communicating artery (IC-Pcom) aneurysms in current endovascular practice.