Accession Number:

ADA002939

Title:

Indirect Measurement of Systolic Blood pressure during +G sub z Acceleration

Descriptive Note:

Corporate Author:

SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX

Personal Author(s):

Report Date:

1974-01-28

Pagination or Media Count:

6.0

Abstract:

Determination of systolic blood pressure Psa with noninvasive techniques is more desirable than arterial invasion due to vascular complications and subject discomfort associated with the latter procedure 1, 2, 9. In high, sustained Gz environments, accurate determination of this physiological parameter by indirect Korotkoff sound detection becomes inadequate due to biological noise artifact induced by increased skeletal muscle straining during performance of the M-1 maneuver necessary to prevent blackout and unconsciousness. This report describes a new technique utilizing a transcutaneous Doppler ultrasonic flow probesphygmomanometer system for noninvasive determination of Psa during Gz environments. Noninvasive Psa determinations were confirmed by simultaneous invasive Psa determinations in the contralateral arm. Author

Subject Categories:

  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE