Association of three different techniques to measure blood pressure in the first trimester with the development of hypertensive disorders of pregnancy
Acta Obstetricia et Gynecologica Scandinavica, 08/08/2012
Clinical Article
Vollebregt KC et al. – Blood pressure in the first trimester was associated with the development of hypertensive disorders of pregnancy. No significant differences were found between measurements by automatic devices compared to conventional sphygmomanometry.
Methods- At 8–11 weeks of pregnancy blood pressure was measured with two different automated devices (continuous finger arterial pressure waveform registration and ambulatory blood pressure monitoring) and with conventional sphygmomanometry.
- Preeclampsia and gestational hypertension.
- Blood pressure in the first trimester, as measured with all three methods, was significantly higher in women who developed preeclampsia or gestational hypertension.
- After adjustment for previous preeclampsia the point estimate of the odds ratios for association with later preeclampsia for both automated devices were comparable and higher than conventional sphygmomanometry, however, differences were not statistically significant.
- The odds ratio (95% confidence intervals) for every 1 mmHg pressure increase of mean arterial pressure was 1.08 (1.02–1.15) for sphygmomanometry, 1.17 (1.09–1.27) for finger arterial pressure waveform registration, and 1.17 (1.07–1.27) for ambulatory blood pressure monitoring.
- Results were comparable if preeclampsia and gestational hypertension were analysed together.
