Pedro Vega

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INTRODUCTION Although the diagnosis of brain death (BD) is usually based on clinical criteria, in sedated patients, ancillary techniques are needed. This study was designed to assess the accuracy of cerebral multislice computed tomographic angiography (CTA) and CT perfusion (CTP) in diagnosing BD. METHODS Prospective observational study in 27 BD patients.(More)
BACKGROUND AND PURPOSE The aim of our study was to evaluate the safety and efficacy of the pipeline endovascular device for the treatment of anterior circulation aneurysms at the level of the circle of Willis and beyond. METHODS A consecutive series of 25 patients (24 unruptured and one ruptured) with anterior circulation aneurysms treated with a pipeline(More)
Treatment of very small ruptured cerebral aneurysms (< 2 mm) continues to present a challenge. These lesions are difficult to treat both with neurosurgical and endovascular techniques. A neurosurgical approach is still the treatment of choice for these lesions at many centers because of high rupture rates related to endovascular treatment; however, there(More)
BACKGROUND The Pipeline Flex embolization device has some peculiarities in comparison with the previous generation device. Despite recent reports of the modified delivery system, its safety is still unknown. OBJECTIVE To illustrate the intraprocedural and periprocedural complication rate with this new device in 30 consecutive patients. MATERIAL AND(More)
BD was diagnosed by clinical examination, electroencephalogram (EEG), Transcranial Doppler (TCD) and multislice CT of 64 detectors. Initially, a brain perfusion study was performed. This was followed by supra-aortic trunk and brain artery angiography with acquisition of images using 0.5 mm slices, from the origin of the aortic root to the vertex. In all the(More)
Floating thrombus in a carotid artery is an uncommon pathology with a high risk of embolism. We present three patients diagnosed with acute stroke, with a floating thrombus complicating an atheromatous plaque, who were treated with anticoagulants and statins. Although two patients had satisfactory results, one patient suffered a stroke related to plaque(More)
Most patients with symptomatic internal carotid artery occlusion have a single minor or major hemispheric stroke. A minority of patients have ipsilateral retinal ischemia, recurrent strokes, or transient ischemic attacks. Whereas spontaneous carotid recanalization is rare, acute surgical recanalization has been attempted, with mixed results. Recently, acute(More)
This paper presents an automatic process to load the transport information of Lima-Peru city as network and public transportation routes from OpenStreetMap (OSM) to a PostgreSQL database. Moreover, this work shows how OSM data is transformed in two graphs and in several actual bus routes. The work is a combination of SQL commands and python programs to(More)
We present the case of a patient with an acute obstruction in the origin of the internal carotid artery that was associated with occlusion of segment one of the ipsilateral medial cerebral artery and severe neurologic deterioration. We describe the neuroimaging findings (unenhanced cranial computed tomography [CT], CT angiography, CT perfusion studies, and(More)