Cited by 680Pregnancy and preeclampsia studiesBlood Pressure and Hypertension StudiesGestational Diabetes Research and Management

The DOI matches its Crossref record; 22 of the 23 references it cites were found in a registry or an index.

Less-Tight versus Tight Control of Hypertension in Pregnancy

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Abstract

BACKGROUND: The effects of less-tight versus tight control of hypertension on pregnancy complications are unclear. METHODS: We performed an open, international, multicenter trial involving women at 14 weeks 0 days to 33 weeks 6 days of gestation who had nonproteinuric preexisting or gestational hypertension, office diastolic blood pressure of 90 to 105 mm Hg (or 85 to 105 mm Hg if the woman was taking antihypertensive medications), and a live fetus. Women were randomly assigned to less-tight control (target diastolic blood pressure, 100 mm Hg) or tight control (target diastolic blood pressure, 85 mm Hg). The composite primary outcome was pregnancy loss or high-level neonatal care for more than 48 hours during the first 28 postnatal days. The secondary outcome was serious maternal complications occurring up to 6 weeks post partum or until hospital discharge, whichever was later. RESULTS: Included in the analysis were 987 women; 74.6% had preexisting hypertension. The primary-outcome rates were similar among 493 women assigned to less-tight control and 488 women assigned to tight control (31.4% and 30.7%, respectively; adjusted odds ratio, 1.02; 95% confidence interval [CI], 0.77 to 1.35), as were the rates of serious maternal complications (3.7% and 2.0%, respectively; adjusted odds ratio, 1.74; 95% CI, 0.79 to 3.84), despite a mean diastolic blood pressure that was higher in the less-tight-control group by 4.6 mm Hg (95% CI, 3.7 to 5.4). Severe hypertension (≥160/110 mm Hg) developed in 40.6% of the women in the less-tight-control group and 27.5% of the women in the tight-control group (P<0.001). CONCLUSIONS: We found no significant between-group differences in the risk of pregnancy loss, high-level neonatal care, or overall maternal complications, although less-tight control was associated with a significantly higher frequency of severe maternal hypertension. (Funded by the Canadian Institutes of Health Research; CHIPS Current Controlled Trials number, ISRCTN71416914; ClinicalTrials.gov number, NCT01192412.).

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Research works printed but not linked: 3

  1. Abalos E, 2014, Cochrane Database Syst Rev, 2, CD002252
  2. Magee LA, 2003, Cochrane Database Syst Rev, CD002863
  3. Arguedas JA, 2009, Cochrane Database Syst Rev, CD004349

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Items 301–400 of 680

Metadata

Authors
Magee, L. A., von Dadelszen, P., Rey, E., Ross, S., Asztalos, E., Murphy, K. E., Menzies, J., Sanchez, J., Singer, J., Gafni, A., Gruslin, A., Helewa, M., Hutton, E., Lee, S. K., Lee, T., Logan, A. G., Ganzevoort, W., Welch, R., Thornton, J. G., & Moutquin, J.-M.
Affiliations
  • University of British Columbia (CA)
  • University of Alberta (CA)
  • University of Toronto (CA)
  • McMaster University (CA)
  • University of Ottawa (CA)
  • University of Manitoba (CA)
  • University of Amsterdam (NL)
  • Derriford Hospital (GB)
  • University of Nottingham (GB)
  • Université de Sherbrooke (CA)
Venue
New England Journal of Medicine
Published
2015-01-29
Volume
372
Issue
5
Pages
407-417
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2135528524
Cited by
672
References
23
Citations by year
2026: 37 · 2025: 52 · 2024: 47 · 2023: 67 · 2022: 76 · 2021: 56 · 2020: 56 · 2019: 65 · 2018: 74 · 2017: 57 · 2016: 52 · 2015: 31
FWCI
81.17
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Repository@Nottingham (University of Nottingham) (publishedVersion, other-oa)
  • St George's Online Research Archive (St George's University of London) (acceptedVersion)
  • Repository@Nottingham (University of Nottingham) (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Nottingham ePrints (University of Nottingham) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion, other-oa)
Funders
Canadian Institutes of Health Research (87522_1)
Topics
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Obstetrics and Gynecology › Gestational Diabetes Research and Management
Keywords
hypertension in pregnancy, blood pressure control, tight blood pressure control, gestational hypertension, pre-existing hypertension, miscarriage, neonatal intensive care, maternal complications, severe hypertension in pregnancy, antihypertensive therapy, postpartum complications, preeclampsia, eclampsia
MeSH terms
Abortion, Spontaneous, Adult, Antihypertensive Agents, Blood Pressure, Female, Humans, Infant, Newborn, Pregnancy, Pregnancy Complications, Pregnancy Outcome, Puerperal Disorders, Intensive Care, Neonatal, Hypertension, Pregnancy-Induced, Perinatal Death

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