Blood pressure measurement: an evaluation of direct and indirect methods.
In order to evaluate the differences between the blood pressure values obtained by direct intraarterial (DM) and indirect sphygmomanometer (IM) measurements, both systems were employed in 30 patients during their immediate postoperative period (24 hours) at our Intensive Care Unite after open heart surgery. The total number of determinations was 355. The statistical study of data lead us to the following conclusions: 1. There are significant differences between arterial pressure values obtained by DM and IM falling within an acceptable range of error for clinical purposes 2. Both methods of measurement, direct and indirect, are highly influenced by technical details that have to be carefully standardised if suitable research values are to be obtained.
Asiain
M C
MC
Montes
Y
Y
Costa-Ramos
M L
ML
Imizcoz
P
P
D001795:Blood Pressure Determination / Q000295:instrumentation / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D015203:Reproducibility of Results