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August 1937

CONTINUOUS RECORDS OF SYSTOLIC AND DIASTOLIC BLOOD PRESSURE

Arch NeurPsych. 1937;38(2):365-370. doi:10.1001/archneurpsyc.1937.02260200137012
Abstract

Lack of a satisfactory method for recording continuous systolic and diastolic blood pressures without puncture of an artery has caused resort to various substitutes. Several methods have been devised to facilitate successive absolute readings by graphic or auscultatory procedures. These methods are without exception too slow to catch the more rapid fluctuations in pressure attending change in stimulating conditions. Furthermore, the stimulation of the patient by the repeated inflation and release of pressure which these methods entail is often itself more effective of change in blood pressure than the special physiologic or psychologic conditions which it is desired to investigate.

Mosso1 developed a method for obtaining continuous graphic records of relative changes in blood pressure by recording the fluctuations in the volume of the fingers when under pressure maintained in a glovelike arrangement by a column of mercury. Erlanger2 devised a method for recording continuously fluctuations in the

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