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Embolization of medium-sized vessels with the penumbra occlusion device: evaluation of anchoring function
Kenichi Kato1, Kazuya Kawashima2, Tomohiro Suzuki2
1Department of Radiology, Iwate Medical University, 1-1-1 Idaidori, Shiwa-gun, Yahaba-cho, Iwate Prefecture, 028-3694, Japan. kkato@iwate-med.ac.jp.
Background:
The penumbra occlusion device (POD) is a recently developed metallic coil with a unique anchor segment. The purpose of this study was to investigate the anchoring function of the POD for embolization of medium-sized vessels in detail.
Materials And Methods:
We reviewed a series of cases of proximal embolization of medium-sized vessels in which the POD was used. Endovascular outcomes and complications were assessed. The distance between the distal end of the first-indwelled POD and the microcatheter tip was defined as the "landing distance," and this was also evaluated via fluoroscopic analysis.
Results:
POD deployment was successful in 17 of 18 patients. The median landing distance was 9.6 mm, and no distal POD migration was observed after the formation of anchor loops.
Conclusions:
The specific anchoring function of the POD enables effective proximal occlusion of medium-sized vessels.
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