Christian Calderon

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The authors present 27 cases of vertebral hydatidosis with clinical and laboratory findings. The most frequent location of the lesion was the lumbar spine. Principal neurological symptoms were paraparesis, sphincter disturbances, paresthesia and paraplegia. The average number of surgical interventions per patient was 2.6; the most common procedure was(More)
Neurological development over a period of 25 years and MRI findings are reported in two members of the same family affected by mannosidosis type II. Progressive axial and appendicular cerebellar syndrome, moderate hearing loss and deterioration of gait were present in both patients. Neuropsychological deficiency was severe, but progression over the years(More)
OBJECTIVE To determine the frequency and types of abnormalities of respiratory control during sleep in syringomyelia and syringobulbia and to provide a basis to predict patients at risk of sudden death. METHODS Thirty patients (15 male and 15 female; mean age 39.0 +/- 12.6 years) with communicating syringomyelia were divided into two groups: those with(More)
Searching for an arterial chemosensory drive exerted upon the cardiovascular system under eucapnic normoxia, we performed experiments on spontaneously ventilated, pentobarbitone-anesthetized cats, in which ventilatory flow through a pneumo-tachograph, instantaneous respiratory frequency, end-tidal pressure of CO(2), arterial pressure, and instantaneous(More)
BACKGROUND Hepatocellular carcinoma is the most frequent primary tumor of the liver. It is associated to chronic liver diseases and has a high prevalence in some regions of Africa and Asia. AIM To describe the clinical characteristics of patients with hepatocellular carcinoma, admitted to two hospitals of the IX region of southern Chile. MATERIAL AND(More)