Hemorrhage/Contrast Staining Areas after Mechanical Intra-Arterial Thrombectomy in Acute Ischemic Stroke: Imaging Findings and Clinical Significance

• DOI: 10.3174/ajnr.a3044
• Publication Date: 2012-04-27T04:34:44Z
• Authors: G. Parrilla; B. García-Villalba; M. Espinosa de Rueda; J. Zamarro; E. Carrión; F. Hernández-Fern...; J. Martín; R. Hernández-Clares; A. Morales; A. Moreno
• Keywords: Clinical Significance; Concomitant; Stroke

<h3>BACKGROUND AND PURPOSE:</h3> The aim of this study was to report the CT evolution and clinical significance HCA after intra-arterial mechanical thrombectomy (revascularization by using retrievers and/or other devices without concomitant delivery thrombolytics) in our patients. These lesions are common thrombolysis, being considered a negative prognostic sign. Their pure remains unknown. <h3>MATERIALS METHODS:</h3> Forty-eight patients were treated with retrievable stents between April 2010 February 2011. All underwent initial (first 24 hours) follow-up (48–72 nonenhanced CT. We retrospectively analyzed radiologic data compared them controls. <h3>RESULTS:</h3> Fifteen 48 presented HCA. site occlusion MCA 7 patients, both extra- intracranial segments ICA 6, 2. In previous intravenous thrombolysis administered. Complete recanalization (TICI 3) achieved 12 incomplete 2b), 3. location subarachnoid space 6 brain parenchyma 4 5 asymptomatic all There no statistical difference final NIHSS score reduction (NIHSS pretreatment–NIHSS at discharge) <h3>CONCLUSIONS:</h3> series, but do not carry an increased risk symptomatic hemorrhage or prognosis. might be related high rate absence thrombolytics.