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Federación Mexicana de Ginecología y Obstetricia, A.C.

2017, Number 10

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Ginecol Obstet Mex 2017; 85 (10)

Auscultation and automated electronic blood pressure device interchangeability in non-hypertensive pregnant women. A pilot study

Oviedo-Cruz H, Reyes-Mendoza MÁ, Cortés-Martínez MA

Language: Spanish
References: 7
Page: 653-658
PDF size: 526.04 Kb.


ABSTRACT

Objetive: To define the sample size needed to evaluate exchangeability between the auscultation method and the automated electronic device for MAP measurement in pregnancies without hypertension.
Materials and Methods: A standardized blood pressure measurement on both arms, and by both methods was performed on 30 pregnancies without hypertension; the combined MAP correlation coefficient was calculated, using the lower CI95% for final sample size needed.
Results: Correlation between methods was r = 0.557 (CI95% = 0.246; 0.763, p = 0.001 and r2 = 0.3097).
Conclusions: The statistically significant correlation between methods could be clinically unacceptable for exchangeability; a sample size of n = 127 is needed to prove it.


REFERENCES

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  5. Pomini F, Scavo M, Ferrazzani S, De Carolis S, Caruso A, et al. There is poor agreement between manual auscultatory and automated oscillometric methods for the measurement of blood pressure in normotensive pregnant women. J Matern Fetal Med 2001;10:398-403.

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