THE AEROMEDICAL ASSESSMENT OF HUMAN SYSTOLIC AND DIASTOLIC BLOOD-PRESSURE TRANSIENTS WITHOUT DIRECT ARTERIAL PUNCTURE.
OFFICE OF AVIATION MEDICINE FEDERAL AVIATION AGENCY WASHINGTON D C
Pagination or Media Count:
A system for virtually continuous measurement of both systolic and diatolic blood pressures without recourse to direct arterial puncture has been effected by the modification of already existing standard equipment. This system entails the measurement of systolic blood pressure with a digital pressure cuff on one arm simultaneously with the measurement of diastolic blood pressure from a bracial cuff mounted on the other arm. The systolic-pressure device was used virtually unmodified. The diastolic-pressure device was originally designed to measure both systolic and diastolic pressures automatically. The modification consisted mainly in the elimination of the systolic portion of the automatic cycle. The combined system is capable of routinely obtaining measurement frequencies in the order of 20 per minute for protracted time periods. The system functions well under all resting-subject conditions and under some body-movement conditions. This system is currently in routine use in all our aeromedically oriented research involving the assessment of cardiopulmonary function. Author
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