J Cerebrovasc Endovasc Neurosurg.  2022 Sep;24(3):241-248. 10.7461/jcen.2022.E2021.12.002.

Forced suction thrombectomy in patients with acute ischemic stroke using the SOFIA Plus device

• Roh HK
• Ju MW
• Byoun HS
• Park B
• Park KH
• Lim J

• KMID: 2533675
• DOI: http://doi.org/10.7461/jcen.2022.E2021.12.002

Abstract

Objective
Stent retrieval thrombectomy has recently been the standard treatment for acute ischemic stroke with large artery occlusion. However, the development of catheters for suction thrombectomy has recently led to results comparable to that of stent retrieval thrombectomy (SRT). This study aimed to analyze the safety and efficacy of forced suction thrombectomy (FST) using the SOFIA Plus (MicroVention Terumo, Tustin, CA, USA) device.
Methods
We included patients with acute ischemic stroke who underwent FST using the SOFIA Plus device at our institution. Medical records and angiographic data were reviewed, and the results of this study were compared with those of other FST studies.
Results
A total of 35 patients were included in this study. The occlusion sites were the internal carotid artery terminal (4), M1 segment (20), and posterior circulation (11). Of the 35 patients, FST was performed in only 21 (60%) patients, and the remaining 14 (40%) patients underwent SRT and FST. In all cases, the recanalization rate was 100%, and the average time from groin puncture to recanalization was 21±4.94 min. In particular, the average time required to reach the SOFIA Plus lesions from the groin puncture was 10.44±5.06 min and about 67% of the FST patients were recanalized at the first attempt. Three-months modified Rankin Scale (mRS) score of ≤2 was observed in 52% of the patients.
Conclusions
Forced suction thrombectomy using the SOFIA Plus yielded a high recanalization rate within a shorter time. In particular, the recanalization rate was higher than that reported in previous studies using other types of suction devices.

Keyword

Ischemic stroke; Thrombectomy; Aspiration; Catheter; Stent

Figure

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  Fig. 1. (A) Fluoroscopic image of SOFIA Plus placed at the occluded lesion via tortuous proximal vessel. (B) Fluoroscopic image of SOFIA Plus placed to M3 for distal embolic occlusion at M3.

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