老年者の心電圖に關する研究(第2報) : 老年者正常心電圖の悪化率に就いて
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概要
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A follow-up study on 280 cases of over sixty years of age who showed normal electrocardiogram when first seen at Yokufukai was made and age, blood pressure, left transverse cardiac diameter by fluoroskopy, urine excretion tests were discussed in relation to abnormal electrocardiographic findings.1) The rate of appearance of abnormal electrocardiographic findings was higher in persons of over seventy years of age than in those of over sixty, showing that the older the subjects were, the higher the rate became.2) The subjects were divided into two groups, one of which was composed of those who showed over 9 cm of left transverse cardiac diameter and the other was composed of those with under 8 cm of diameter. The rate of appearance of abnormal findings was distinctly higher with the former group than the latter.3) The rate of appearance of abnormal electrocardiographic findings was lower in persons in whom highest gravity of their urine was above 1020 than in those whose graviry of urine was short of 1015. This fact was interpreted to indicate that the renal function had much to do with the change of electrocardiograms.4) There was a close interrelationship between an elevation of systolic and diastolic blood pressure and the rate of appearance of pathologic electrocardiographic findings. Especially an elevation of diastolic blood pressure had much to do with the rate.5) Of four factors which were heretofore discussed in regards to abnormal electrocardiographic findings, hypertension had the greatest influence on the electrocardiographic changes, renal insufficiency the second, the dilatation of the left heart the third and fourthly age had the least influence.6) The relation between prolongation of the Q-T interval or extrasystole and subsequent appearance of abnormal electrocardiogram for those who had not any other abnormality other than those above mentioned on the first electrocardiographic examination is closer than the relation between age and the rate of appearance of abnormal electrocardiogram, but distinctly more remote than the relation between blood pressure, renal function, dilatation of the heart and the rate of appearance of abnormal electrocardiogram.
- 社団法人日本循環器学会の論文
- 1956-05-20
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関連論文
- 老年者の心電圖に關する研究(第3報) : 老年者異常心電圖の豫後
- 老年者の心電圖に關する研究(第2報) : 老年者正常心電圖の悪化率に就いて
- 老年者の心電圖に關する研究(第1報) : 老年者異常心電圖頻度