陰極線オツシログラフに依る電氣心働圖の研究 : 第七報 PQの短縮に就て

抄録

1) The author described the cases which have a normal form of P wave, short PQ interval and prolonged QRS group, and which have normal form of P, short PQ interval and normal QRS group. 2) Among 7500 electrocardiograms which were recorded in the past four years in the Mashimo clinic, there were 12 cases like the former, and 8 cases like the latter. 3) The explanation given by Wolferth & Wood or Zarday to the cases in which the electrocardiogram have a normal form of P wave, short PQ and prolonged QRS group, (that is due to the Kent's bundle, the short path between the right auricle and the right ventricle.) may be not correct, because some of these cases have forms of right bundle branch block. 4) When we accept the existence of the intraauricular special muscle system, above stated two kind of cases are well explained, considering that the sino- Tawara's bnndle is complete and the sinoauricular bundles are half damaged. 5) In these cases the fact that P wave has the normal form in spite of this damage the sinoauricular stimulus conduction system must be damaged as a whole, and so the damage must be the beginning of the system. 6) The author explained that the above stated thought is not incorrect, analysing the cases ef Hohmann & Sherf and Zarday.