NDLI: Tolerance-hyperbaric test for the early detection of gestational hypertension and preeclampsia

Content Provider	IEEE Xplore Digital Library
Author	Hermida, R.C. Ayala, D.E. Mojon, A. Fernandez, J.R. Alonso, I. Silva, I. Ucieda, R. Iglesias, M.
Copyright Year	1997
Description	Author affiliation: ETSI Telecomunicacion, Vigo Univ., Spain (Hermida, R.C.)
Abstract	The authors have examined prospectively whether the combined approach of establishing tolerance intervals for the circadian variability of blood pressure (BP) as a function of gestational age, and then computing the hyperbaric index (HBI) by comparison of any patient's BP profile (obtained by ambulatory BP monitoring, ABPM) with those intervals, provides a new high sensitivity test for the early detection of pregnant women who subsequently will develop gestational hypertension or preeclampsia. The authors analyzed 503 BP series from 71 women with healthy pregnancies, and 256 series from 42 complicated pregnancies. BP was sampled for about 48 hours once every 4 weeks from the first visit to the hospital to delivery. 90% tolerance limits were computed for each trimester of gestation from 497 series previously obtained from a reference group of 189 normotensive pregnant women. The HBI was then computed for each individual BP series in the validation sample. Sensitivity of this tolerance-hyperbaric test was 90% in the first trimester, and increased up to 99% in the third trimester. The positive predictive value was above 97% in all trimesters, providing, on the average, an early identification of gestational hypertension or preeclampsia 23 weeks prior to the clinical confirmation of the disease. The approach presented here, now validated prospectively, represents a simple, reproducible, noninvasive, and high sensitivity test for the very early identification of gestational hypertension and preeclampsia.
Starting Page	36
Ending Page	39
File Size	490798
Page Count	4
File Format	PDF
ISBN	0780342623
ISSN	1094687X
DOI	10.1109/IEMBS.1997.754456
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-10-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Hypertension Pregnancy Biomedical engineering Chronobiology Telecommunication standards Hospitals Electronic mail Blood pressure Biomedical monitoring
Content Type	Text
Resource Type	Article

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