直角二等邊三角座標による心電圖の研究 : 第5報左心房優勢について

概要

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The author calculated the vector (θR&φA) of the electric charge of Mitral-P by the standard EKG, by means of Maekawa's orthogonal isosceles triangle coordinates. In this case the directions are Inclined to left as a whole, but their rotations are less than the healthy men: this fact seems to mean that the right auricle rotated to left owing to the enlargement of the left auricle. Abut φA they have not so much difference with the healthy men, and their continuous time is longer than the healthy men. These are caused as follows, the time of stirnulous transmission in the pathologic left auricle is longer, than the healthy one, therefore the double time of stimulous transmission of the left auricle becomes later. Then the author agrees with Takayasu's proposal that such P-wave should be called as "Left Auricular Predominance"
社団法人日本循環器学会の論文
1950-01-20