Abstract
BackgroundThe 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 methodsWe 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.ResultsPOD 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.ConclusionsThe specific anchoring function of the POD enables effective proximal occlusion of medium-sized vessels.
Highlights
The penumbra occlusion device (POD) is a recently developed metallic coil with a unique anchor segment
The median landing distance was 9.6 mm, and no distal POD migration was observed after the formation of anchor loops
Proximal arterial embolization using the anchoring function of the POD was performed in 18 patients
Summary
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. A bigger coil in diameter relative to target vessel is difficult to form the anchor. The penumbra occlusion device (POD; Penumbra Inc., Alameda, California, USA) is a unique hybrid coil, which has specific anchor function to achieve occlusion of medium-sized vessels. The distal end of a POD can serve as an anchor, and the rest of the device can be securely stuffed into the anchor segment (Jambon et al 2017; Petitpierre et al 2016; Spiotta et al 2016). Our aim was to retrospectively assess the safety and efficacy of embolization and to especially investigate the anchoring function of the POD for embolization of medium-sized vessels
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