Abstract
to compare blood pressure values obtained by auscultatory and oscillometric methods in different gestational periods, considering cuff width. it is a cross-sectional and quasi-experimental study approved by the Research Ethics Committee. The sample consisted of 108 low-risk pregnant women. Blood pressure measurements were performed in gestational periods of 10-14, 19-22 and 27-30 weeks. The oscillometric device presented values similar to the auscultatory method in systolic blood pressure, but overestimated diastolic blood pressure. Underestimation of blood pressure occurred when using the standard width cuff rather than the correct width cuff in both measuring methods. Verification of brachial circumference and use of adequate cuffs in both methods are indispensable to obtain reliable blood pressure values in pregnant women. We recommend performance of additional studies to evaluate diastolic blood pressure overestimation by the Microlife 3BTO-A.
Highlights
According to the World Health Organization, arterial hypertension (AH) affects around 10% pregnancies worldwide, besides contributing significantly to high rates of neonatal morbidity[1]
The Hypertensive Disorders of Pregnancy (HDP) were classified into four types: Chronic arterial hypertension (CAH); Preeclampsia (PE)/eclampsia; PE superimposed on CAH; and pregnancy-induced hypertension (PIH)(2)
We found statistically significant differences between Groups 1 and 3 only in the auscultatory method with the correct width cuff (CWC)
Summary
According to the World Health Organization, arterial hypertension (AH) affects around 10% pregnancies worldwide, besides contributing significantly to high rates of neonatal morbidity[1]. The 7th Brazilian Guideline of Arterial Hypertension brings that AH affects some 7.5% pregnancies in Brazil, accounting for 20% to 25% of all causes of maternal death. Data from the Unified Health System (SUS) show a tendency of stagnation of these levels[3]. The importance of measuring blood pressure (BP) during pregnancy has been emphasized for more than a century, and it is an essential part of prenatal care. PE diagnosis has important implications for the treatment and prognosis of both mother and fetus, and this depends on an accurate BP measurement, since its elevation is often the only imminent PE sign[4]
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