نتایج جستجو برای: aneurysms
تعداد نتایج: 18880 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Analyzing genes involved in development and rupture of intracranial aneurysms can enhance knowledge about the pathogenesis of aneurysms, and identify new treatment strategies. We compared gene expression between ruptured and unruptured aneurysms and control intracranial arteries. METHODS We determined expression levels with RNA sequencing. Applying a multivariate negati...
The energy loss may predict rupture risks of anterior communicating aneurysms: a preliminary result.
Anterior communicating artery (ACoA) aneurysms are well documented to have a higher rupture risk compared with aneurysms at other locations. However, the risk predicting factors for these aneurysms still remain unclear due to the complex arteries geometries and flow patterns involved. The authors introduce a comprehensive method to quantitatively illustrate the development of ACoA aneurysms usi...
BACKGROUND The practice patterns of a hybrid open cerebrovascular/neuroendovascular (CVNV) neurosurgeon in early academic practice is unknown. METHODS We performed a multi-institutional retrospective cohort study of patients with cerebral aneurysms that were treated within the first 24 months of the neurosurgeon's practice. RESULTS A total of 533 aneurysms were treated by the three senior a...
BACKGROUND Hydrogel coils were created to improve the chances of an effective endovascular treatment of cerebral aneurysms. Achieving a high packing density of coils in the lumen of aneurysms can decrease the risk of recurrence. The aim of the present study is to report our initial experience on the effectiveness and safety of endovascular treatment of intracranial aneurysms with the use hydrog...
Purpose The aim of this study was to evaluate the technical feasibility and rate of mid-term occlusion in aneurysms treated solely with the Pipeline Embolization Device (PED) in a German tertiary care university hospital. Materials and Methods Forty-nine non-consecutive intracranial aneurysms underwent endovascular treatment using the PED exclusively between March 2011 and May 2017 at our ins...
BACKGROUND AND PURPOSE Flow Diverters (FD) are a new emerging therapy for intracranial aneurysms. Initial reports focused on the treatment of proximally located aneurysms. We report our experience with FDs in the treatment of aneurysms at and beyond the circle of Willis. METHODS We treated 30 aneurysms at and beyond the circle of Willis with FDs (silk and pipeline). Aneurysms were treated wit...
BACKGROUND AND PURPOSE Despite experience and technological improvements, endovascular treatment of intracranial aneurysms still has inherent risks. We evaluated cerebral complications associated with this treatment. METHODS From October 1998 to October 2002, 180 consecutive patients underwent 131 procedures for 118 ruptured aneurysms and 79 procedures for 72 unruptured aneurysms. We retrospe...
BACKGROUND AND PURPOSE The endovascular treatment (EVT) of cerebral aneurysms has experienced a revolution since 1991 with the introduction of platinum coil technology. During the past 10 years, there has been significant study of the feasibility of this technique, and clinical results of EVT have been published. The long-term durability of Guglielmi detachable coil (GDC) embolization of cerebr...
BACKGROUND AND PURPOSE The clinical significance of early (ie, within the first 24 hours) uptake of ferumoxytol by macrophages in the wall of human cerebral aneurysms is not clear. The purpose of this study was to determine whether early uptake of ferumoxytol suggests unstable cerebral aneurysm. METHODS Thirty unruptured aneurysms in 22 patients were imaged with magnetic resonance imaging 24 ...
OBJECTIVE Small unruptured aneurysms (<5 mm) are known for their very low risk of rupture, and are recommended to be treated conservatively. However, we encounter many patients with small ruptured aneurysms in the clinical practice. We aimed to investigate the incidence and characteristics of patients with small ruptured aneurysms. METHODS We reviewed all patients admitted to our hospital wit...
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