Paul Langevin

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BACKGROUND Cerebral sinovenous thrombosis in children is a serious disorder, and information is needed about its prevention and treatment. METHODS The Canadian Pediatric Ischemic Stroke Registry was initiated in 1992 at the 16 pediatric tertiary care centers in Canada. Children (newborn to 18 years of age) with symptoms and radiographic confirmation of(More)
Cerebral dysgenesis is a subject of interest because of its relationship to cerebral development and dysfunction and to epilepsy. The authors present a detailed study of a 16-year-old boy who underwent surgery for a severe seizure disorder. This patient had dysgenesis of the right hemisphere, which was composed of a giant central frontoparietal nodular gray(More)
In 1971, Andermann and Andermann described an autosomal recessive syndrome found within the Charlevoix and the Saguenay populations (Quebec, Canada) characterized by agenesis of the corpus callosum (ACC) associated with motor and sensory neuropathy, mental retardation and dysmorphic features. A study of CT in 64 patients demonstrated a total ACC in 37 cases(More)
STUDY OBJECTIVE To determine the usefulness of routinely inserting a hollow airway exchange catheter (jet stylet) prior to tracheal extubation of adult patients with risk factors for difficult tracheal intubation. DESIGN Prospective, 1-year study of 40 consecutive patients undergoing mechanical ventilation who had one or more risk factors for difficult(More)
An infant with vitamin B12-responsive methylmalonic aciduria and no homocystinuria or megaloblastic anemia presented with stomatitis, glossitis, convulsions, and developmental delay. Cultured fibroblasts showed defective incorporation of both [14C]5-methyltetrahydrofolate and [14C]propionate into protein by whole cells and a decrease of methionine synthase(More)
The appearance of portable chest radiographs (CXRs) may be affected by changes in ventilation, particularly when patients are mechanically ventilated. Synchronization of the CXR with the ventilatory cycle should limit the influence of respiratory variation on the appearance of the CXR. This study evaluates the effect of synchronizing the CXR film exposure(More)
BACKGROUND Respiratory pathogens that pass through the anesthesia breathing system potentially can infect other patients. This study was designed to determine if bacteria can pass through contemporary anesthesia breathing systems and if the environment within the machine is hostile to these organisms. METHODS Staphylococcus aureus, Pseudomonas aeruginosa,(More)