BACKGROUND AND PURPOSE: Some patients develop major neurological complications after carotid revascularization procedures, despite the lack of new infarcts or classical hyperperfusion syndrome. METHODS: In four patients who developed major neurological deficits after carotid revascularization procedures, but without evidence of new ischemic infarcts or hyperperfusion, we performed post-procedural MRI [diffusion-weighted image (DWI), perfusion-weighted image (PWI), pre-and post-contrast fluid-attenuated inversion recovery (FLAIR) image] immediately after and 1 day after the procedure. RESULTS: Post-gadolinium FLAIR images on 1 day after the procedures showed prominent leptomeningeal enhancements in the revascularized hemispheres. These radiological findings disappeared on follow-up FLAIR images accompanied by the clinical improvement over the following several days after the procedures. CONCLUSION: Reperfusion syndrome may be associated with transient severe neurological deficits after carotid revascularization in patients without new ischemic events or classical hyperperfusion syndrome.
BACKGROUND AND PURPOSE: Some patients develop major neurological complications after carotid revascularization procedures, despite the lack of new infarcts or classical hyperperfusion syndrome. METHODS: In four patients who developed major neurological deficits after carotid revascularization procedures, but without evidence of new ischemic infarcts or hyperperfusion, we performed post-procedural MRI [diffusion-weighted image (DWI), perfusion-weighted image (PWI), pre-and post-contrast fluid-attenuated inversion recovery (FLAIR) image] immediately after and 1 day after the procedure. RESULTS: Post-gadolinium FLAIR images on 1 day after the procedures showed prominent leptomeningeal enhancements in the revascularized hemispheres. These radiological findings disappeared on follow-up FLAIR images accompanied by the clinical improvement over the following several days after the procedures. CONCLUSION:Reperfusion syndrome may be associated with transient severe neurological deficits after carotid revascularization in patients without new ischemic events or classical hyperperfusion syndrome.
Authors: B S Choi; J W Park; J E Shin; P-H Lü; J K Kim; S J Kim; D H Lee; J S Kim; H J Kim; D C Suh Journal: Interv Neuroradiol Date: 2010-10-25 Impact factor: 1.610
Authors: G Gascou; K Lobotesis; H Brunel; P Machi; C Riquelme; O Eker; A Bonafé; V Costalat Journal: AJNR Am J Neuroradiol Date: 2014-12-18 Impact factor: 3.825
Authors: Hyun-Ji Cho; Young Jin Kim; Joon Hwa Lee; Jin Woo Choi; Won-Jin Moon; Hong Gee Roh; Young Il Chun; Hahn Young Kim Journal: BMC Neurol Date: 2014-09-10 Impact factor: 2.474