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REPORT OF CASE
—A man aged 47 was seen first on Sept. 14, 1942. For two months he had staggered when walking, and any movement of the head caused dizziness.The present illness began in August 1939, when he had his first attack of severe vertigo with vomiting. This came on suddenly when he was standing on the street outside a store. He had several severe attacks after this one and was treated by his local physician for six months. He was seen at a clinic in February 1940, where a low sodium diet and ammonium chloride were prescribed. He had shown much improvement until the summer of 1942, when he consulted his family physician because of staggering and dizziness. He had stopped taking the ammonium chloride for some time before but still maintained the low sodium intake. His blood count was normal, and repeated urinalyses showed nothing abnormal.
BROWN MR. PAROXYSMAL CEREBRAL DYSRHYTHMIA FOLLOWING LARGE DOSES OF POTASSIUM CHLORIDE. Arch NeurPsych. 1948;60(3):301–302. doi:10.1001/archneurpsyc.1948.02310030082008
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