Estudio comparativo de tres tipos de esfingomanómetro, en sujetos con diferentes cifras de presión arterial

Abstract

The blood pressure measurement procedure is a key aspect for an acute screening and control of blood hypertension, which is considered a major problem both at a national and international level. Although the implementation of such procedure takes place as part of the daily responsibilities of the nurse, it is  of utmost importance to go beyond its simple execution and to analyze its technical dimension in greater depth in order to provide the research team with parameters to adjust the outcome figures according to a gold standard.

The objective:of this study is to estimate the variations in the outcome figures resulting from the use of different methods in the blood pressure measurement, such as diverse sphygmomanometers (the auscultatory and the oscillometric).

Five sphygmomanometers were evaluated, two of them of the oscillometric type, and the other three of the auscultatory type (Random zero Hawksley & Sons),. Measurement were carried out in 25 women and 6 men by a skilled and standardized nurse. 

Result: showed that variations were higher in the systolic pressure as compared to the diastolic one; also, the last measurement carried out with a mercury sphygmomanometer was alway the closest to the remaining measurements with other sphygmomanometers as compared to the first one.

In all cases, R2 was high and coefficient B, as well as confidence intervals, showed a strong correlation between the outcome figures from the mercury  sphygmomanometers and the those from other sphygmomanometers.

When obtaining information about variations, nursing staff will be able to adjust the measurement taken by different sphygmomanometers in different localities.