心電図R-R間隔の図形化による自律神経機能の評価法

概要

論文の詳細を見る
Evaluating the function of autonomic nervous system with the CV% value for R-R interval on ECG involves some problems. To resolve these problems, we have devised a method whereby variations in R-R intervals with time are treated by a computer and shown in diagram. The subjects were 29 cases of orthostatic dysregulation (OD) due entirely to the autonomic dysfunction. The R-R interval of 100 beats was measured at 4 points in time, namely, at 20 minutes bed rest, immediately after orthostatism,5 and 10 minutes after orthostatism. And the diagrammatic description was compared with evaluation on the CV% value for study. The pathological findings obtained on OD could be classified by the diagrammatic description into 4 groups as follows. 1) Flat without rhythm both at rest and after erect standing. 2) Rhythmical variations both at rest and after orthostatism. 3) Flat at rest but getting gradually rhythmical after erect standing. 4) Rhythmical at rest but becoming flat simultaneously with erect standing. These findings cannot be analyzed by the conventional evaluation on the CV%value which was varying without any clinical significance through the test. We have shown the diagrammatic description method to be excellent in that the evaluation is hardly affected by arrhythmia and noise.
耳鼻咽喉科臨床学会の論文