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Iatrogenic Foreign Materials Associated with Retrieved Clot Tissue via Mechanical Thrombectomy

Iatrogenic Foreign Materials Associated with Retrieved Clot Tissue via Mechanical Thrombectomy Published April 1, 2021 as 10.3174/ajnr.A7106 ORIGINAL RESEARCH INTERVENTIONAL Iatrogenic Foreign Materials Associated with Retrieved Clot Tissue via Mechanical Thrombectomy M. Abbasi, D. Dai, Y. Liu, S. Fitzgerald, R. Kadirvel, L.E. Savastano, H. Cloft, D.F. Kallmes, and W. Brinjikji ABSTRACT BACKGROUND AND PURPOSE: Hydrophilic polymers and polytetrafluoroethylene liners, commonly used in the construction of endovascular devices, occasionally separate from devices with subsequent embolization. We determined the frequency of such materials in thrombus specimens retrieved by mechanical thrombectomy in patients with stroke. MATERIALS AND METHODS: We retrospectively reviewed H&E–stained thrombus sections for presence and types of foreign mate- rials. We identified 4 types of foreign materials—Type I: material was light green with refraction and had a homogeneous texture; type II: material was light gray and/or dark gray, thin, and loose or attenuated in texture; type III: material was light green with refraction, solitary in texture, irregular in shape, and was often associated with round or oval bubblelike particles and/or diffuse black particles; and type IV: material had homogeneous texture and was light pink or red. In addition, polymer materials from dif- ferent layers of used mechanical thrombectomy catheters were compared with the foreign materials found in thrombus specimens. RESULTS: A http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Iatrogenic Foreign Materials Associated with Retrieved Clot Tissue via Mechanical Thrombectomy

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Publisher
American Journal of Neuroradiology
Copyright
© 2021 by American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A7106
Publisher site
See Article on Publisher Site

Abstract

Published April 1, 2021 as 10.3174/ajnr.A7106 ORIGINAL RESEARCH INTERVENTIONAL Iatrogenic Foreign Materials Associated with Retrieved Clot Tissue via Mechanical Thrombectomy M. Abbasi, D. Dai, Y. Liu, S. Fitzgerald, R. Kadirvel, L.E. Savastano, H. Cloft, D.F. Kallmes, and W. Brinjikji ABSTRACT BACKGROUND AND PURPOSE: Hydrophilic polymers and polytetrafluoroethylene liners, commonly used in the construction of endovascular devices, occasionally separate from devices with subsequent embolization. We determined the frequency of such materials in thrombus specimens retrieved by mechanical thrombectomy in patients with stroke. MATERIALS AND METHODS: We retrospectively reviewed H&E–stained thrombus sections for presence and types of foreign mate- rials. We identified 4 types of foreign materials—Type I: material was light green with refraction and had a homogeneous texture; type II: material was light gray and/or dark gray, thin, and loose or attenuated in texture; type III: material was light green with refraction, solitary in texture, irregular in shape, and was often associated with round or oval bubblelike particles and/or diffuse black particles; and type IV: material had homogeneous texture and was light pink or red. In addition, polymer materials from dif- ferent layers of used mechanical thrombectomy catheters were compared with the foreign materials found in thrombus specimens. RESULTS: A

Journal

American Journal of NeuroradiologyAmerican Journal of Neuroradiology

Published: Apr 1, 2021

References