Journal of neurointerventional surgery
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To date, there have been few published studies examining the relationship between arteriovenous malformation (AVM) angioarchitecture and hemorrhagic presentation among children with cerebral AVMs. This study examines this relationship in this unique population, in whom symptomatic presentation of cerebral AVM is the norm rather than the exception. ⋯ Smaller AVM size, exclusive deep venous drainage and infratentorial location are specific angioarchitectural factors independently associated with initial hemorrhagic presentation in children with AVMs.
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Flow diverters are an exciting new class of endovascular devices that treat aneurysms by curative reconstruction of the parent artery. The Pipeline embolization device (PED) is the first FDA-approved intracranial flow diverting device available in the USA. This paper presents periprocedural results with the device in a series of 35 consecutive cases. ⋯ Treatment of cerebral aneurysms with the PED carries an acceptable risk profile when a rigorous and uniform technique is used. Although the long-term results will need to be analyzed, the immediate procedural outcomes in the study series using this technique appear quite promising.
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The shorter the time interval between the estimation of the ischemic core by imaging and reperfusion, the more likely that core expansion is minimized. We aimed to assess the feasibility of achieving an ultrashort imaging to reperfusion time in routine clinical practice. ⋯ An imaging to endovascular reperfusion time of <60 min is feasible and resulted in minimal core expansion on follow-up imaging in patients with acute ischemic stroke.
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Cerebral angiography is a routine low-risk procedure. Laboratory testing is performed in almost all patients. Some testing may be warranted in selected patients but can also result in delays in performing the procedure. ⋯ The incidence of abnormal testing in patients undergoing outpatient cerebral angiography is very low. These results and evidence in the literature suggest that the majority of patients undergoing cerebral angiography do not require any pre-procedure testing. Assessment of renal function using the estimated glomerular filtration rate in high-risk patients only is, however, warranted.