Daniel Le Gars

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BACKGROUND AND PURPOSE To evaluate behavioral and cognitive deficits following anterior communicating artery aneurysm rupture and determine critical lesion locations. METHODS We investigated 74 patients with standardized cognitive tests and behavioral inventory. Two examiners rated MRI signal abnormalities in 51 predetermined regions of interest.(More)
The aim of this study is to describe the anterior spinal artery–Adamkiewicz artery (ASA–AKA) junction and establish a classification allowing defining the neurological risk in either thoracoabdominal aorta aneurysm treatment and in anterior or transforaminal thoracolumbar spine surgery. Fifteen spinal cords of fresh cadavers were dissected. Both lumbar(More)
OBJECTIVE To determine acute intracranial hydrodynamic changes after subarachnoid hemorrhage (SAH) via phase-contrast MRI (PC-MRI) analysis of the CSF stroke volume in the aqueduct (SVaq) and the foramen magnum (SVfm). METHODS A prospective PC-MRI study was performed on 34 SAH patients in the acute and late phase. Data on CSF flow and hemorrhage site were(More)
Deep brain stimulation of the thalamus (and especially the ventral intermediate nucleus) does not significantly improve a drug-resistant, disabling cerebellar tremor. The dentato-rubro-olivary tract (Guillain-Mollaret triangle, including the red nucleus) is a subcortical loop that is critically involved in tremor genesis. We report the case of a 48-year-old(More)
The aim of this study was to present anatomic macroscopic aspects and the relationship between the duodenum and the posterior abdominal wall. The authors describe anatomic types of peritoneal duodenal fossae and stress some points of surgical importance. Twenty-four cadavers, fixed in formalin, were dissected. Ten peritoneal fossae were given prominence and(More)
Les données classiques concernant la portion rétro-gassérienne du nerf trijumeau (nervus trigeminus) chez l'homme, se sont complétées depuis une quinzaine d'années de détails morphologiques apportés par les techniques microneurochirurgicales. Après avoir rappelé les données classiques, la valeur de ces données nouvelles sera envisagée à la lumière d'une(More)
Cognitive impairment has been reported in 27–83 % of adults with World Health Organization (WHO) grade I–III glioma. However, the few studies in this field used different methods for cognitive assessment. The objective of the present study was to establish the prevalence of cognitive impairment in patients with WHO grade I–III primary brain tumors and(More)
AIM To describe the origin, the course, and relationships of the labyrinthine artery (LA). MATERIAL AND METHODS Thanks to a colored silicone mix preparation, ten cranial bases were examined using x3 to x40 magnification under surgical microscope. RESULTS The LA often arose from the meatal loop of the anterior inferior cerebellar artery (AICA) (90%), or(More)
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