潜函病の心電図に関する実験的並びに臨床牀的研究(第2報) : 高圧環境下における家兎の心電図学的研究

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タイトル別名
  • The Experimental and Clinical Studies of the Electrocardiograms of Caisson Disease (II) : INFLUENCE HIGH PRESSURE SURROUNDING THE ELECTROCARDIOGRAMS OF RABBIT
  • 潜函病の心電図に関する実験的並びに臨牀的研究-2-
  • センカンビョウ ノ シンデンズ ニ カンスル ジッケンテキ ナラビニ リンショウテキ ケンキュウ 2
  • 潜函病の心電図に関する実験的並びに臨床的研究-2-

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説明

I have observed the influence of high pressure surrounding the electrocardiograms of rabbits and its pathological changes on various conditions experimentally. Forty rabbits were used for this experiment.They were put in the "compression-box" by compression air and pressure was put on them by various methods to observe influences on electrocardiograms and electrolyte in serum.The results obtained are as follows : 1. In 4 cases, when the air pressure was lowered gradually in a step-like fashion, one case revealed coronary T wave after undergoing the procedure 15 times. In cases where severe pressure was applied, the author observed many increased R and P waves.2. In 16 cases that were performed the air pressure was lowered gradually in straight-line fashion. In two cases the I or III leads showed occassional coronary T waves, but potassium in blood serum was not increased.3. Rabbits with electrocardiographic changes showed some changes also pathologically. The author observed the callosity and degeneration in the heart muscles. In groups with the heart callosity of the right ventricle there showed coronary TIII wave, moreover in groups with the heart callosity of the left ventricle there showed TI wave an electrocardiograms.4. In the group presenting experimental caisson disease, serum K concentration increased in half of the cases, and in other cases decreased. But K concentration in myocardium increased slightly in many cases. Natrium and karium concentration in serum increased in a few cases, but in many cases were found more frequently to decrease after the pressure.No appreciable correlation was found between the electrocardiographic changes and the electrolytes in serum. The electrocardiographic changes on experimental caisson disease were caused by the fact that the physical conditions were caused by compression and depression, causing thereby the pathological-histological changes of the heart and lung.

収録刊行物

  • 日本循環器學誌

    日本循環器學誌 23 (6), 743-763, 1959

    一般社団法人 日本循環器学会

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