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Abstract WP99: Impact Of Venous Delay Evaluated Before And After Mechanical Thrombectomy On Stroke Outcome

Abstract WP99: Impact Of Venous Delay Evaluated Before And After Mechanical Thrombectomy On Stroke Outcome

Authors :
Lara Zangana
Adrian Valls
Josep Munuera
Mariano Werner
Sebastiàn Remollo
Laura Dorado
Joaquin Serena
Josep Puig
Natalia Perez de la Ossa
Meritxell Gomis
Alejandro Bustamante
Belen F. Pina
Carlos Castaño
Lucia Muñoz
Ernest Palomeras
Anna Massuet
Mikel Terceño
Antonio Davalos
Monica Millan
Maria Hernandez-Perez
Source :
Stroke. 54
Publication Year :
2023
Publisher :
Ovid Technologies (Wolters Kluwer Health), 2023.

Abstract

Introduction: We aimed to evaluate venous delay before and after treatment as a marker of radiological and clinical outcome in stroke patients receiving endovascular treatment (EVT). Methods: Prospective cohort of patients with anterior intracranial occlusion undergoing EVT. Brain MRI was performed on arrival (pre-EVT), Results: From 98 included patients (median NIHSS 17, final mTICI≥2b 86%), 89 pre-EVT dMRIs and 88 post-EVT dMRIs were evaluable. The median venous delay pre-EVT and post-EVT were -31.9[-58.1;-16.7]% and -13.5[-34.5;-7.5]%, respectively. Venous delay pre-EVT was not related to infarct volume or clinical outcome. When final mTICI≥2B, venous asymmetry decreased but still persisted. For each 10% of increment in venous delay post-EVT, there was an adjusted increase of 0.12[0.05-0.19]ml in the final infarct volume. Venous delay post-EVT was independently associated with mRS at 90 days (cOR 1.013 [95%CI 1.001-1.0256]). Conclusion: Cortical vein delay assessed after but not before EVT, is associated with a larger final infarct volume and with a worse clinical outcome.

Details

ISSN :
15244628 and 00392499
Volume :
54
Database :
OpenAIRE
Journal :
Stroke
Accession number :
edsair.doi...........3f390e8ae05a82d27be06e7f74a6b3d3
Full Text :
https://doi.org/10.1161/str.54.suppl_1.wp99