Jai Jai Shiva Shankar

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BACKGROUND Among patients with a proximal vessel occlusion in the anterior circulation, 60 to 80% of patients die within 90 days after stroke onset or do not regain functional independence despite alteplase treatment. We evaluated rapid endovascular treatment in addition to standard care in patients with acute ischemic stroke with a small infarct core, a(More)
INTRODUCTION The SILK flow diverter (SFD) is used for the treatment of complex intracranial aneurysms. Small case series have been reported in the literature but few studies with a large number of patients have been published. We present our experience with the SFD for the treatment of intracranial aneurysms in Canada. METHODS Centers across Canada using(More)
Cerebral vasospasm (CV) is one of the most dreaded complications in patients who survive acute subarachnoid haemorrhage (SAH), and conventional cerebral angiography (DSA) is the gold standard for its diagnosis. We evaluated CT angiography (CTA) as a non-invasive alternative for diagnosis of CV and assessed if CTA could have a role in choosing appropriate(More)
Computed tomography perfusion (CTP) has been criticized for limited brain coverage. This may result in inadequate coverage of the lesion, inadequate arterial input function, or omission of the lesion within the target perfusion volume. The availability of 320-slice CT scanners offers whole brain coverage. This minimizes the chances of misregistration of(More)
SUMMARY For pronouncing brain death, unlike CTP, the 2-phase CTA gives no functional information and is limited by inadvertent delay of the second acquisition, which may give false-negative results. The purpose of our study was to compare CTP and CTA derived from the CTP data with the Dupas and Frampas criteria for confirmation of brain death. A(More)
INTRODUCTION Migrainous infarction accounts for 12.8% of ischemic strokes of unusual etiology. CASE REPORT A 59-year-old woman with longstanding migraine with aura experienced what appeared to be migrainous infarction characterized by dysmetropsia and transient Cotard's syndrome. Imaging demonstrated right temporal-parietal-occipital changes with apparent(More)
The most significant factors leading to restenosis are yet to be described in the literature. The purpose of our study was to identify the incidence of restenosis in our patients with carotid artery stenting (CAS) for carotid atherosclerotic disease and to identify risk factors that are significantly responsible or related to the restenosis. In this(More)
We describe spontaneous posterior dislocation of an in-the-bag, plate-haptic silicone intraocular lens (IOL) 1 year after neodymium:YAG laser posterior capsulotomy. The patient presented with an acutely painful eye associated with loss of vision. The initial cataract surgery was uneventful. Clinical findings at presentation were suggestive of pupillary(More)
PURPOSE We present a series of cases featuring re-rupture of posterior communicating artery aneurysms in the immediate post-coiling period, where clots obscured the neck of the aneurysm during the procedure. We report on the incidence of re-rupture and discuss possible mechanisms behind this phenomenon. METHODS This study included 462 aneurysms over a(More)
Tumefactive demyelinating lesions (TDLs) have been defined as demyelinating lesions >20 mm variably associated with mass effect, perilesional edema, and/or contrast enhancement. A retrospective study of 168 individuals with biopsy-confirmed central nervous system inflammatory demyelinating disease showed that TDLs present a diagnostic challenge given the(More)