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A presumed terrorist attack with sarin occurred in a residential area of the city of Matsumoto,Japan,on June 27,1994.About 600 residents and rescue staff were poisoned;58 were admitted to hospitals,and 7 died.We examined clinical and laboratory findings of 264 people who sought treatment and the results of health examinations on 155 residents done 3 weeks after the poisoning.Findings for severely poisoned people were decreases in serum cholinesterase,acetylcholinesterase in erythrocytes,serum triglyceride, serum potassium and chloride;and increases in serum creatine kinase, leucocytes,and ketones in urine.Slight fever and epileptiform abnormalities on electroencephalogram were present for up to 30 days. Examination revealed no persisting abnormal physical findings in any individual.Acetylcholinesterase returned to normal within 3 months in all people examined.Although subclinical miosis and neuropathy were present 30 days after exposure,almost all symptoms of sarin exposure disappeared rapidly and left no sequelae in most people. |
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