Background and Purpose—Vessel recanalization is a strong predictor of good outcome in acute ischemic strokes (AIS) secondary to large vessel occlusions. We report our single-center experience with self-expandable stents in the treatment of AIS. Stroke. 2011; 42: 2636-2638 Published online before print June 30, 2011, doi: 10.1161/STROKEAHA.111.618389. Copyright © 2011 American Heart Association, Inc. All rights reserved.
Background and Purpose—The incidence and risk factors for recurrence after endovascular treatment of intracranial vertebrobasilar dissecting aneurysms (VBDAs) have not been studied. We aimed to evaluate the incidence and risk factors for recurrence after endovascular treatment of VBDAs. Stroke. 2011; 42: 2425-2430 Published online before print July 21, 2011, doi: 10.1161/STROKEAHA.111.617381. Copyright © 2011 American Heart Association, Inc. All rights reserved.
Background and Purpose—Basilar artery occlusion has a high mortality rate (85% to 95%) if untreated. We describe a large single-center cohort treated mostly with intravenous alteplase and heparin. Stroke. 2011; 42: 2175-2179 Published online before print July 7, 2011, doi: 10.1161/STROKEAHA.110.605584. Copyright © 2011 American Heart Association, Inc. All rights reserved.
Background and Purpose—Extracranial vertebral artery stenosis (ECVAS) is common among patients with ischemic stroke. Despite the limited knowledge of the natural history of patients with symptomatic vertebral disease, endovascular revascularization techniques are now utilized in clinical practice. We sought to determine the risk of endovascular treatment for ECVAS with a systematic review of the literature. Stroke. 2011; 42: 2212-2216 Published online before print June 23, 2011, doi: 10.1161/STROKEAHA.110.611459. Copyright © 2011 American Heart Association, Inc. All rights reserved.
Background and Purpose—Collaterals sustain the ischemic penumbra to limit growth of the infarct core before revascularization, yet the impact of baseline collateral flow on hemorrhagic transformation (HT) after endovascular therapy remains unknown. Stroke. 2011; 42: 2235-2239 Published online before print July 7, 2011, doi: 10.1161/STROKEAHA.110.604603. Copyright © 2011 American Heart Association, Inc. All rights reserved.
SUMMARY: In contrast to cervical and lumbar fusion procedures, the principal aim of disk arthroplasty is to recapitulate the normal kinematics and biomechanics of the spinal segment affected. Following decompression of the neural elements, disk arthroplasty allows restoration of disk height and maintenance of spinal alignment. Based on clinical observations and biomechanical testing, the anticipated advantage of arthroplasty over standard arthrodesis techniques has been a proposed reduction in the development of symptomatic ALD. In this review of cervical and lumbar disk arthroplasty, we highlight the clinical results and experience with standard fusion techniques, incidence of ALD in the population of patients with surgical fusion, and indications for arthroplasty, as well as the biomechanical and clinical outcomes following arthroplasty. In addition, we introduce the devices currently available and provide a critical appraisal of the clinical evidence regarding arthroplasty procedures. Published online before print October 27, 2011, doi: 10.3174/ajnr.A2758 AJNR 2012 33: 1631-1641. Copyright © 2012 by American Journal of Neuroradiology
SUMMARY: As stroke is one of the leading causes of death and long-term morbidity worldwide, the research community has studied cardiac embolic sources, as well as vessel wall pathologies. For the latter, attention has been focused on defining morphologic tissue features associated with catastrophic events stemming from the carotid artery. Multiple noninvasive imaging modalities are currently being used to image and classify carotid atherosclerotic plaques, such as MR imaging, CT, and sonography, in an effort to provide clinically relevant predictive metrics for use in patient risk stratification and to define appropriate treatment options. This article compares and contrasts these existing clinical imaging modalities along with discussion of a new endovascular technique originally developed for cardiology, OCT, with which 3D comprehensive high-resolution images of the arterial wall can be acquired. Published online before print March 8, 2012, doi: 10.3174/ajnr.A2753 AJNR 2012 33: 1642-1650. Copyright © 2012 by American Journal of Neuroradiology
BACKGROUND AND PURPOSE: Recanalization is observed in 20–40% of endovascularly treated intracranial aneurysms. To further reduce the recanalization and expand endovascular treatment, we evaluated the safety and efficacy of closed-cell SACE. Published online before print April 5, 2012, doi: 10.3174/ajnr.A3034 AJNR 2012 33: 1651-1656. Copyright © 2012 by American Journal of Neuroradiology
BACKGROUND AND PURPOSE: Recently, the use of stents to assist in the coiling and repair of wide-neck aneurysms has been shown to be highly effective; however, the effect of these stents on the RC of the parent vessel has not been quantified. The purpose of this study was to quantify the effect of intracranial stenting on the RC of the implanted artery using 3D datasets. Published online before print April 26, 2012, doi: 10.3174/ajnr.A3062 AJNR 2012 33: 1657-1662. Copyright © 2012 by American Journal of Neuroradiology
BACKGROUND AND PURPOSE: Development of a headache after aneurysm coil embolization is not uncommon but has received little attention. The authors prospectively analyze the characteristics and risk factors of a headache after coiling in patients treated for an unruptured cerebral aneurysm. Published online before print April 5, 2012, doi: 10.3174/ajnr.A3018 AJNR 2012 33: 1676-1678. Copyright © 2012 by American Journal of Neuroradiology
BACKGROUND AND PURPOSE: The pathogenesis and characteristics of multiple DAVSs are not well-known. The purpose of this study was to evaluate the angiographic and clinical characteristics of patients with multiple DAVSs with an emphasis on the pathomechanism. Published online before print April 26, 2012, doi: 10.3174/ajnr.A3054 AJNR 2012 33: 1691-1695. Copyright © 2012 by American Journal of Neuroradiology
BACKGROUND AND PURPOSE: NGAVFs are rare vascular malformations usually presenting in infancy or childhood. We sought to identify clinical and angiographic predictors of clinical outcome for these lesions. Published online before print July 5, 2012, doi: 10.3174/ajnr.A3194 AJNR 2012 33: 1710-1719. Copyright © 2012 by American Journal of Neuroradiology
Stenting in intracranial atherosclerotic disease (ICAD) is increasingly debated, due to issues of procedural safety, technical efficacy, and in-stent recurrent stenoses (ISR). In the present study, feasibility, safety, and efficacy of angioplasty using a drug-eluting balloon (DEB) followed by the implantation of a self-expanding stent (Enterprise) were evaluated for the treatment of ICAD lesions. CardioVascular and Interventional Radiology 2012, DOI: 10.1007/s00270-012-0450-9. Copyright © Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) 2012
BACKGROUND AND PURPOSE: The pathogenesis and characteristics of multiple DAVSs are not well-known. The purpose of this study was to evaluate the angiographic and clinical characteristics of patients with multiple DAVSs with an emphasis on the pathomechanism. Published online before print April 26, 2012, doi: 10.3174/ajnr.A3054 AJNR 2012 33: 1691-1695 . Copyright © 2012 by American Journal of Neuroradiology
Endovascular stroke therapy is an effective means of achieving reperfusion in stroke patients with proximal cerebral artery occlusions. However, current guideline recommendations express uncertainty regarding the clinical efficacy of catheter-based treatments, given the lack of supportive trial data. A critical problem is that it remains unclear which patients will benefit from endovascular therapy. As such, patient selection is likely highly variable in clinical practice. This article will review the existing data to discuss the clinical and imaging factors that are relevant to patient outcomes, and which may be used to guide endovascular treatment decisions. Anterior circulation strokes represent the primary focus of this review. Techniques in Vascular & Interventional Radiology Volume 15, Issue 1 , Pages 33-40, March 2012. Copyright © 2012 Elsevier Inc. All rights reserved.
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