Use of new aspiration thrombectomy delivery catheter: a multicenter experience

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Abstract
Background and objectives: Large-bore aspiration catheters have demonstrated better recanalization times and higher first-pass effects in large vessel occlusions. However, vessel tortuosity and branching vessels can hinder navigability, potentially increasing the ‘ledge effect’, procedural times, and the risk of vessel injury. Recently, a newly designed delivery catheter (Carrier Delivery Catheter (CDC), Balt, France) has been introduced to the US market. This paper aims to report our combined experience with this catheter in a real-life clinical setting. Methods: This is a retrospective, multicenter study based on a prospectively maintained database of patients with ischemic stroke who underwent mechanical thrombectomy between February 2024 and January 2025. All consecutive patients who underwent mechanical thrombectomy in which a CDC was used were included. Results: A total of 43 patients from three centers in the USA were included. The mean age was 69.74 years, and most of the patients were male (60.5%). The CDC delivered the aspiration catheter to the clot in all cases. The mean National Institutes of Health Stroke Scale (NIHSS) score was 18, and the mean time between puncture to clot access was 18.14 min. No vessel dissection or perforation was reported, and 4.6% of symptomatic hemorrhagic complications were reported. None of the complications were adjudicated to be directly related to the use of the Carrier. Conclusion: Our case series shows that the CDC is a useful and reliable tool as a delivery catheter for treating vessel occlusions in both the anterior and posterior circulation. This study serves as proof of concept and may provide a foundation for future prospective analyses of this innovative delivery system.

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