肺結核心電図にかんする研究 : とくに立体的ベクトル分析について
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In the former chapter, the electrocardiograms before and after various sorts of pulmonary collapse therapy were investigated with special reference to the influences upon the changes of heart position. Thoracoplasty was made in 102 cases, pneumoperitoneum in 36 cases. 1. The deviation of electrical axis and the displacement of heart position due to thoracoplasty were generally of slight degree. Most of change of ST-T recovered within about two weeks. 2. Left axis deviation of QRS and T, accompanied by a deep Q_<III> was found in pneumoperitoneum, where deflection of the cardiac currents through the non-conducting air masses might also play a part in intensifying the left axis deviation. In right as well as left pneumothorax the QRS axis deviates to the right; this deviation is more constant and intense with left pneumothorax. 3. The changes of QRS before and after lobectomy were also discussed. In the latter chapter, the spatial vector analysis of ecg. before and after the surgical treatments was performed. In consideration of the opinions, mentioned by Bayley; Grant; Woodson, Hurst and Urshel, the spatial vector analysis was made with the use of ecg., taken by routine twelve leads. Spatial mean QRS, T-vector, QRS-loop, direction of deflection, ventricular gradient, spatial QRS-T angle and so on were measured and investigated particularly from viewpoint of the polarity. 1. Ecg. before and after lobectomy (r:3 cases, 1:2 cases) and regional resection (r:10 cases, 1:10 cases) were analyzed with special reference to the changes of electrical axis. The symmetrical changes were observed both in lobectomy and regional resection. There could not be found any constant tendency of the changes about size of QRS-vector, angle of spatial QRS-T, and state of ventricular gradient : all fluctuations, were limited within normal range. 2. The spatil vector analysis was performed in six cases with dexrocardia. According to Mandelstamm and Reinberg's classification, 3 cases among them were of I Type, one case II Type, Two cases III Type. The direction of ventricular gradient showed distinctly the difference of each type, QRS-loop served effectively in order to decide the arrangement of chamber in each type. 3. The right ventricular hypertrophy curve was analyzed in ten patients suffering from severe pulmonary tuberculosis, accompanied with pulmonary insufficiency; the results were compared with them from ten normal cases and four left ventricular hypertrophy cases. Mean axis of QRS, mean axis of T wave (A^^^T), the loop of QRS were opposed to each other in left and right ventricular hypertrophy curves.
- 千葉大学の論文
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- 肺結核心電図にかんする研究 : とくに立体的ベクトル分析について