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Rev. méd. Chile ; 138(4): 483-486, abr. 2010. tab
Article in English | LILACS | ID: lil-553221

ABSTRACT

We report a 51-year-old male with a history of palpitations, hepatopathy and hypercholesterolemia, who habitually ate raw goat meat, and developed general fasciculations, muscle cramps in the lower limbs, distal muscle weakness and wasting, without upper motor neuron signs or sensory abnormalities. Diagnostic workup revealed positive antibodies against Toxocara canis in the serum and cerebrospinal fuid. Nerve conduction studies revealed a proximal and distal axonal lesion of motor nerves and needle electromyography was indicative of acute and chronic denervation with giant motor unit action potentials. Despite a therapy with albendazole and riluzole, muscle weakness and wasting further progressed and affected also the respiratory muscles. Followup nerve conduction studies and electromyography confrmed progression of the axonal degeneration. Whether lower motor neuron disease was causally related to neurotoxocariasis or due to a general metabolic defect, remains speculative.


Presentamos un hombre de 51 años con una historia de palpitaciones, hepatopatía e hipercolesterolemia que comía habitualmente carne de cabra cruda, que desarrolló un cuadro caracterizado por fasciculaciones generalizadas, calambres musculares en las extremidades inferiores, pérdida de fuerza y atrofa muscular distal, sin signos de lesión de motoneurona superior o alteraciones sensitivas. El laboratorio mostró anticuerpos anti Toxocara canis en suero y líquido cefalorraquídeo. La electromiografía mostró una lesión axonal proximal y distal de nervios motores y denervación con potenciales de acción gigantes en las unidades motoras. A pesar de tratarse con albendazol y riluzona, la debilidad muscular y atrofa continuaron progresando. Una nueva electromiografía confrmó la progresión de la degeneración axonal. La asociación entre esta enfermedad de motoneurona inferior y la neurotoxocariasis, es especulativa.


Subject(s)
Animals , Humans , Male , Middle Aged , Central Nervous System Helminthiasis/complications , Motor Neuron Disease/parasitology , Toxascariasis/complications , Toxocara canis , Toxocara canis/immunology , Toxocara canis/isolation & purification
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