AJP - Heart and Circulatory Physiology, Vol 242, Issue 1 127-H130, Copyright © 1982 by American Physiological Society
Noninvasive measurement of systolic and diastolic blood pressure in swine
B. C. Hodgkin, D. E. Burkett and E. B. Smith
Arterial blood pressure was measured noninvasively using Doppler ultrasound
and an occluding cuff. The subjects were 28 domestic pigs (10-49 kg)
anesthetized with pentobarbital sodium (25 mg/kg). Indirect pressure
measurements were made with the Doppler unit placed over the radial or the
ulnar artery proximal to the carpal joint. Comparison was made with
directly measured pressure to determine the reliability and reproducibility
of the indirect method. Direct systolic pressures between 73 and 230 mmHg
and diastolic pressures between 52 and 165 mmHg were measured. There was no
significant difference between directly and indirectly measured systolic
pressure (P greater than 0.20). Indirectly measured diastolic pressure
tended to be lower than direct diastolic pressure, the difference by the
paired t test being significant to P = 0.06. For systolic pressure the
sample correlation coefficient was 0.94, and for diastolic pressure, 0.88.
Both systolic and diastolic blood pressure can be accurately measured in
the anesthetized pig using Doppler ultrasound and an occluding cuff.
