Abstract
With an intention of clarifying the relationship of functions between autonomic nerves and oirculatory organs at the time of pregnacy, Bickenbach test, Aschner test and cold pressure test were applied on a total of 69 pregnant women of normal pregnancy, pregnancy hypertension and pregnancy toxemia in combination with the recording of the blood pressure wave of the brachial artey and electrocardiogram for the observation of the autonomic nerve functions at the time of pregnancy as well as the changes produced by the loading of tests mentioned above on their circulatory functions.
1. As the result of Bickenbach test, the patients of pregnancy hypertension and pregnancy toxemia were frequently found to have vasomotor nerve disturbance.
2. Frequent appearance of abnormality in the arterial blood pressure waves of pregnancy toxemia indicated the increase in the cardiac load, increase in the peripheral resistance, lowering in the cardiac functions and the presence of spasms or sclerosis in the patients of this disease.
3. Aschner test positive cases were predominant among the patients of pregnacy toxemia and the influence of this test on the arterial blood pressure wave was the elongation of diastolic stage and the lowering of the minimum pressure resulting in the elevation of various portions of the wave.
4. Cold pressure test positive cases were predominant among the patients of pregnancy toxemia, especially, eclampsia. The main effect of this test on the arterial blood pressure wave was the appearance of the wave of elastic or the diminution of the diastolic stage.
In view of the findings stated above, the patients of pregnancy toxemia were found to show a marked increase in the peripheral resistance and the instability of vasomotoric nerves.
5. As for the relationship with electrocardiogram, the time of wave transmission was found to be retard by the cold pressure test.
