Polonetskiĭ L Z
Kardiologiia. 1985 Mar;25(3):50-2.
Impedance chest plethysmograms (IPG) were recorded simultaneously with intraventricular pressure curves before and after ventriculography in 36 patients with chronic coronary heart disease. Phono- and apex cardiograms were recorded simultaneously with the 1st IPG derivative. The analysis of the tracings established criteria for determining the duration of isometric relaxation phase (IRP) from the 1st IPG derivative. The comparison between the IRPIPG and left-ventricular filling pressure (LVFP) values obtained by direct measurement, demonstrated a close correlation (r = 0.896) and suggested a simple formula for non-invasive LVFP determination.
在36例慢性冠心病患者进行心室造影前后，同步记录了阻抗胸部容积描记图（IPG）和心室内压力曲线。同时记录了第一导数IPG的心音图和心尖心动图。通过对记录的分析，确定了根据第一导数IPG确定等容舒张期（IRP）持续时间的标准。对IRPIPG与直接测量获得的左心室充盈压（LVFP）值进行比较，结果显示两者密切相关（r = 0.896），并提出了一种用于无创测定LVFP的简单公式。
