電気容量脈波計の応用に関する研究

抄録

Pulse wave records were made of cases with infantile orthostatic dysregulation on a standing test based upon the O. D. diagnostic standard and with a newly devised electric capacito-plethysmography. The cases observed consisted of 19 out-patients with suggested O. D. on history,5 convalescent in-patients with over a week's bed rest, and 3 out-patients showing marked O. D. liks symptoms. The above 19 member group was injected with Efforil to have the patients' vascular reactions observed. The results obtained were as follows:
(1) Of the O. D. symptoms d (fatigue or easy fatigability) which belongs to a minor symptom category, occupied the highest, being found in about 50%, of the patients.
(2) About 60% of the out-patients were reconfirmed as genuine O. D.. About 40% of these genuine cases were confirmed O. D. positive additionally on a standing-test basis; about less than half the convalescent patiets were O. D. positive.
(3) Of the results of the O. D. standing-test narrowness of pulse pressure was the most conspicuous occupying about 60% of the out-patients and 90% of the in-patients, followed by an increase in pulse rate. An increase in systolic blood pressure and changes in E. C. G. findings were observed in a small number of the cases.
(4) Of the changes in pulse waves, those of the wave height were most marked. About half the cases showed a decrease of the height of over 50%, associated with a narrowness of pulse pressure of over 21mmHG. Changes in e elevation and f elevation were not so marked. It was noticeable that following intravenous injection of Effortil considerable changes in e-elevation were observed.
(5) As effects of Effortil on the circulatory system, there developed an increase in systolic pressure following standing, a marked increase in pulse pressure and a trend of a marked increase in pulse rate.
(6) Observations of pulse waves revealed that following administration of Effortil there developed an increse in cardiac ont-put which was certained by a marked increase in eelevation which was caused by the Effortil administered.