ArticleJournal of neuroendovascular therapy2024
Effectiveness of S-Shaping of the Tip of the FUBUKI Guiding Catheter to Match the Shape of the Cervical Internal Carotid Artery in Anterior Circulation Cerebral Aneurysm Embolization.
Article in Journal of neuroendovascular therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: During cerebral aneurysm embolization of the anterior circulation, the guiding catheter (GC) should be placed as distally as possible in the cervical internal carotid artery (ICA) to secure the maneuverability of the microcatheter and distal access catheter. However, if the shape of the tip of the GC does not appropriately match the course of the ICA, blood stasis might occur. We investigated whether shaping the tip of the GC into an S-shape would allow more stable catheterization to the distal ICA than the conventional GC with an angled tip. Methods: We included patients with cerebral aneurysms of the anterior circulation who were treated at our institution from April 2019 to April 2021. First, we evaluated the cervical ICA course in these patients through cerebral angiography and classified the courses into type S, type I, and type Z. Then, we focused on the most frequently encountered type-S cervical ICA to investigate the forging effect of the GC tip into an S-shape. We evaluated the lateral view of the carotid angiograms to examine whether the catheter tip reached the foramen magnum (FM) without interrupting ICA blood flow. The effects of age, sex, side, a history of hypertension and smoking, and an S-shape modification of the GC tip on the outcome of GC placement were analyzed. Results: A total of 67 patients were included in this study. The tip of the GC was placed at the FM in 27 cases. Among these factors, only the S-shape modification was significantly associated with whether the GC could be placed at the level of the FM (p <0.0001). Conclusion: By forging the tip of the GC into an S-shape, the GC can be safely advanced to the distal part of the cervical ICA, which may contribute to the improved maneuverability of microcatheters.
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