Ballistocardiogramに關する臨床的研究

第2報 高血圧患者のBallistocardiogram

抄録

1) The ballistocardiograms of 27 patients with essential hypertention without conplications as cardiac failure, cardiac enlargement or chronic nephritis were recorded by Yoneyama's table type vectorballistocardiograph.
2) The mean, standard deviation and range for the QH time, QI time and QJ time obtained from the longitudinal ballistocardiogram were given. Following differences in ballistocardiograms were recognized between hypertensive patients and normal adults.
a) The QJ time in hypertensive patients was shorter than that in normal adults.
b) The IJ intervals in hypertensive patients were shorter than that in normal adults.
c) There were increased variations in the QH time, QI time and QJ time in hypertensive patients.
3) The means of the exspiratory/inspiratory ratio of the HI-and IJ amplitude were 0.46 and 0.53 respectively. These values were higher than those in normal adults.
4) Some differences in spatial vectors of H wave, I wave and J wave were also recognized between hypertensive patients and normal adults.