Vitolo E, Madoi S, Palvarini M, Sponzilli C, De Maria R, Ciró E, Colombo A E, Vallino F, Saruggia M
J Electrocardiol. 1987 Apr;20(2):138-46. doi: 10.1016/s0022-0736(87)80103-6.
The effects of acute changes in cardiac volumes determined by hemodialysis on cardiac voltages were assessed in 18 chronically uremic patients by means of a vectorcardiographic and scalar Frank leads recording, immediately before, at the 90th and 180th minute, and immediately after hemodialysis. The following parameters were simultaneously monitored: body weight, systolic and diastolic blood pressure, heart rate, hematocrit and, in eight patients, echocardiographic systolic and diastolic diameters of the left ventricle. During hemodialysis all voltages considered except R wave in X lead increased significantly. They were inversely correlated with body weight, blood pressure, and systolic and diastolic diameters and directly with hematocrit (volemia-dependent parameters). The maximal vector on the left sagittal plane and the R wave amplitude in Z lead, representing left ventricular posterolateral wall activation, showed the greatest increase. When, at the end of hemodialysis, an amount of fluids ranging from 300 to 800 ml was restored, these cardiac voltages decreased paralleling the increase of left ventricular diameters. In conclusion, these results demonstrate that cardiac voltage and volumes are inversely related.
通过向量心电图和标量Frank导联记录，在18例慢性尿毒症患者中评估了血液透析引起的心脏容量急性变化对心脏电压的影响，记录时间为血液透析前、第90分钟和第180分钟以及血液透析结束后即刻。同时监测以下参数：体重、收缩压和舒张压、心率、血细胞比容，在8例患者中还监测了左心室的超声心动图收缩和舒张直径。在血液透析期间，除X导联的R波外，所有考虑的电压均显著增加。它们与体重、血压、收缩和舒张直径呈负相关，与血细胞比容呈正相关（容量依赖性参数）。左矢状面上的最大向量和Z导联的R波振幅代表左心室后外侧壁激活，显示出最大的增加。当在血液透析结束时补充300至800毫升液体时，这些心脏电压随着左心室直径的增加而降低。总之，这些结果表明心脏电压和容量呈负相关。
