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September 1956


Author Affiliations

Tokyo University School of Medicine Tokyo, Japan

AMA Arch NeurPsych. 1956;76(3):263-264. doi:10.1001/archneurpsyc.1956.02330270035007

To the Editor:—  In answer to the letter of Drs. Spiegel and Wycis, we think it necessary to emphasize the following points:1. Though our concern is not particularly with priorities, we invite attention to the fact that our report in the January, 1956, issue of the Archives is concerned especially with procaine oil blocking of the globus pallidus in Parkinsonian rigidity. This operation was first performed in May, 1952, and the first report was published in March, 1953, in the Proceedings of the Japan Academy. Drs. Spiegel and Wycis have done ansotomy in paralysis agitans since 1952, but they reported pallidotomy only in cases of choreic movement. We believe selective pallidal invasion in Parkinsonism is our innovation. This idea was reached by experienece with the same procedure in cases of double athetosis and was not suggested by their work.In this connection, ligation of the anterior choroidal artery and

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