Editors' Note: In "Risks and benefits of clopidogrel–aspirin in minor stroke or TIA: Time course analysis of CHANCE," authors Pan et al. compared the use of dual antiplatelet therapy (DAPT) with aspirin alone for secondary stroke prevention in patients after a minor stroke or TIA. Drs. Gutierrez and Lekic point out that DAPT appeared to have a greater benefit than aspirin alone in patients with intracranial arterial stenosis (ICAS) in the first 2 weeks and ask the authors to provide a time-course analysis for the risk of ischemic stroke and hemorrhage by ICAS status.
Dabigatran etexilate (DE), a new oral anti-coagulant, is a direct thrombin inhibitor. Clinical trials showed the favorable benefit-to-risk profile of DE compared to warfarin for the prevention of ischemic stroke in patients with atrial fibrillation. Remarkably, patients treated with dabigatran showed reduced rates of intracerebral hemorrhage compared to warfarin. As the breakdown of endothelial barrier integrity is associated with hemorrhagic events and as thrombin increases endothelial permeability, we hypothesized that dabigatran preserves the endothelial barrier by inhibiting thrombin-induced permeability.
Vitamin K antagonists (VKAs) have been shown to decrease the risk of ischemic stroke and systemic embolism in patients with non-valvular atrial fibrillation (NVAF).  The non-VKA oral anticoagulants (NOACs) are now increasingly used as an alternative to VKAs thanks to their convenient, fixed dose and no requirement for monitoring. NOACs have shown non-inferiority to warfarin for the prevention of stroke and systemic embolism, with marked reduction in the risk of intracerebral haemorrhage .
Polymorphonuclear neutrophil granulocytes (PMN) orchestrate the removal of cell debris in ischemic stroke and intracerebral hemorrhage. In both pathologies, high neutrophil to lymphocyte ratios in peripheral blood are predictive of poor outcome in human stroke patients. Following earlier studies indicating that the cerebral microvasculature forms an efficient barrier that impedes neutrophil brain entry, intravital microscopy and immunohistochemistry in the meantime unequivocally revealed the accumulation of PMN in the ischemic and hemorrhagic brain parenchyma.
Background and Purpose—EmboTrap is a novel stent retriever designed to achieve rapid and substantial flow restoration in acute ischemic stroke secondary to large-vessel occlusions. Here, we evaluated EmboTrap’s safety and efficacy compared with established stent retrievers.Methods—ARISE II (Analysis of Revascularization in Ischemic Stroke With EmboTrap) was a single-arm, prospective, multicenter study, comparing the EmboTrap device to a composite performance goal criterion derived using a Bayesian meta-analysis from the pivotal SWIFT (Solitaire device) and TREVO 2 (Trevo device) trials. Patients at 11 US ...
Conclusions—The relative risk of hemorrhagic stroke among children and young adults with CHD was almost 8× higher than that of matched controls from the general population, although the absolute risk was low. The highest risk of ICH and SAH occurred in patients with severe nonconotruncal defects and coarctation of the aorta.
Conclusions—Our study suggests that good outcome in smokers is mainly related to differences in baseline characteristics and not to biological effects of smoking. The higher recanalization rates in smokers, however, call for further studies.
Conclusions—Stroke is a major cause of morbidity and mortality in patients on LVAD support. Chronic obstructive pulmonary disease increases the risk of ischemic stroke, whereas dialysis may increase the risk of hemorrhagic stroke. Although any stroke increases mortality, post-LVAD hemorrhagic stroke was associated with higher mortality compared with ischemic stroke.