Clinical evaluation of the Copal UA-251 and the Dinamap 1848 automatic blood-pressure monitors.
The Copal UA-251 is a small automatic blood-pressure monitor, which relies on a piezo-electric microphone for detection of Korotkoff sounds. The Dinamap 1848 automatic monitor uses the oscillometric method for blood-pressure determination. When compared with the Hawksley random-zero sphygmomanometer, the Copal UA-251 recorded higher systolic blood-pressure, with this discrepancy widening at the upper end of the systolic pressure range. The agreement between these machines was reasonable for diastolic blood-pressure. The Dinamap 1848 had a tendency to consistently over-read systolic and under-read diastolic blood-pressure compared with the Hawksley sphygmomanometer, with median differences of 7 mmHg and -2.5 mmHg respectively.
Maheswaran
R
R
University Department of Medicine, Dudley Road Hospital, Birmingham, UK.
Zezulka
A V
AV
Gill
J S
JS
Beevers
M
M
Davies
P
P
Beevers
D G
DG
D001795:Blood Pressure Determination / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans