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Bailey EJ, Tita ATN, Leach J, Boggess K, Dugoff L, Sibai B, Lawrence K, Hughes BL, Bell J, Aagaard K, Edwards RK, Gibson K, Haas DM, Plante L, Metz TD, Casey BM, Esplin S, Longo S, Hoffman M, Saade GR, Foroutan J, Tuuli MG, Owens MY, Simhan HN, Frey HA, Rosen T, Palatnik A, Baker S, August P, Reddy UM, Kinzler W, Su EJ, Krishna I, Nguyen N, Norton ME, Skupski D, El-Sayed YY, Ogunyemi D, Galis ZS, Harper L, Ambalavanan N, Oparil S, Kuo HC, Szychowski JM, Hoppe K. Perinatal Outcomes Associated With Management of Stage 1 Hypertension. Obstet Gynecol 2023; 142:1395-1404. [PMID: 37769314 PMCID: PMC10840706 DOI: 10.1097/aog.0000000000005410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/29/2023] [Indexed: 09/30/2023]
Abstract
OBJECTIVE To evaluate the association between maternal blood pressure (BP) below 130/80 mm Hg compared with 130-139/80-89 mm Hg and pregnancy outcomes. METHODS We conducted a planned secondary analysis of CHAP (Chronic Hypertension and Pregnancy), an open label, multicenter, randomized controlled trial. Participants with mean BP below 140/90 mm Hg were grouped as below 130/80 mm Hg compared with 130-139/80-89 mm Hg by averaging postrandomization clinic BP throughout pregnancy. The primary composite outcome was preeclampsia with severe features, indicated preterm birth before 35 weeks of gestation, placental abruption, or fetal or neonatal death. The secondary outcome was small for gestational age (SGA). RESULTS Of 2,408 patients in CHAP, 2,096 met study criteria; 1,328 had mean BP 130-139/80-89 mm Hg and 768 had mean BP below 130/80 mm Hg. Participants with mean BP below 130/80 mm Hg were more likely to be older, on antihypertensive medication, in the active treatment arm, and to have lower BP at enrollment. Mean clinic BP below 130/80 mm Hg was associated with lower frequency of the primary outcome (16.0% vs 35.8%, adjusted relative risk 0.45; 95% CI 0.38-0.54) as well as lower risk of severe preeclampsia and indicated birth before 35 weeks of gestation. There was no association with SGA. CONCLUSION In pregnant patients with mild chronic hypertension, mean BP below 130/80 mm Hg was associated with improved pregnancy outcomes without increased risk of SGA. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov , NCT02299414.
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Affiliation(s)
- Erin J Bailey
- Departments of Obstetrics and Gynecology, University of Wisconsin, Madison, and Medical College of Wisconsin, Milwaukee, Wisconsin, University of Alabama at Birmingham, Birmingham, and University of South Alabama, Mobile, Alabama, University of North Carolina at Chapel Hill, Chapel Hill, and Duke University, Durham, North Carolina, University of Pennsylvania and Drexel University College of Medicine, Philadelphia, St. Luke's University Health Network, Fountain Hill, and Magee Women's Hospital and University of Pittsburgh, Pittsburgh, Pennsylvania, University of Texas at Houston, Baylor College of Medicine, and Texas Children's Hospital, Houston, UTSouthwestern Medical Center, Dallas, and University of Texas Medical Branch, Galveston, Texas, Columbia University, New York, NYU Langone Hospital-Long Island, Mineola, and NewYork-Presbyterian Queens Hospital, Queens, New York, University of Oklahoma Health Sciences, Oklahoma City, Oklahoma, Indiana University, Indianapolis, Indiana, University of Utah Health, Salt Lake City, Utah, Washington University in St. Louis, St. Louis, Missouri, University of Mississippi Medical Center, Jackson, Mississippi, The Ohio State University, Columbus, Ohio, Rutgers University-Robert Wood Johnson Medical School, New Brunswick, New Jersey, Yale University, New Haven, Connecticut, University of Colorado, Aurora, and Denver Health, Denver, Colorado, Emory University, Atlanta, Georgia, University of California, San Francisco, San Francisco, Stanford University, Palo Alto, and Arrowhead Regional Medical Center, Colton, California, and Beaumont Hospital, Royal Oak, Michigan; the Department of Biostatistics, the Division of Neonatology, Department of Pediatrics, the Division of Cardiovascular Disease, Department of Medicine, and the Center for Women's Reproductive Health, University of Alabama at Birmingham, Birmingham, Alabama; MetroHealth System, Cleveland, Ohio; Intermountain Healthcare, Salt Lake City, Utah; Ochsner Baptist Medical Center, New Orleans, Louisiana; Christiana Care Health Services, Newark, Delaware; St. Peter's University Hospital, New Brunswick, New Jersey; Weill Cornell Medicine, New York, New York; Zuckerberg San Francisco General Hospital, San Francisco, California; the Division of Cardiovascular Sciences, NHLBI, Bethesda, Maryland; and the Department of Women's Health, University of Texas at Austin, Austin, Texas
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Identifying the Early Signs of Preterm Birth from U.S. Birth Records Using Machine Learning Techniques. INFORMATION 2022. [DOI: 10.3390/info13070310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Preterm birth (PTB) is the leading cause of infant mortality in the U.S. and globally. The goal of this study is to increase understanding of PTB risk factors that are present early in pregnancy by leveraging statistical and machine learning (ML) techniques on big data. The 2016 U.S. birth records were obtained and combined with two other area-level datasets, the Area Health Resources File and the County Health Ranking. Then, we applied logistic regression with elastic net regularization, random forest, and gradient boosting machines to study a cohort of 3.6 million singleton deliveries to identify generalizable PTB risk factors. The response variable is preterm birth, which includes spontaneous and indicated PTB, and we performed a binary classification. Our results show that the most important predictors of preterm birth are gestational and chronic hypertension, interval since last live birth, and history of a previous preterm birth, which explains 10.92, 5.98, and 5.63% of the predictive power, respectively. Parents' education is one of the influential variables in predicting PTB, explaining 7.89% of the predictive power. The relative importance of race declines when parents are more educated or have received adequate prenatal care. The gradient boosting machines outperformed with an AUC of 0.75 (sensitivity: 0.64, specificity: 0.73) for the validation dataset. In this study, we compare our results with seminal and most related studies to demonstrate the superiority of our results. The application of ML techniques improved the performance measures in the prediction of preterm birth. The results emphasize the importance of socioeconomic factors such as parental education as one of the most important indicators of preterm birth. More research is needed on these mechanisms through which socioeconomic factors affect biological responses.
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Bone JN, Sandhu A, Abalos ED, Khalil A, Singer J, Prasad S, Omar S, Vidler M, von Dadelszen P, Magee LA. Oral Antihypertensives for Nonsevere Pregnancy Hypertension: Systematic Review, Network Meta- and Trial Sequential Analyses. Hypertension 2022; 79:614-628. [PMID: 35138877 PMCID: PMC8823910 DOI: 10.1161/hypertensionaha.121.18415] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND We aimed to address which antihypertensives are superior to placebo/no therapy or another antihypertensive for controlling nonsevere pregnancy hypertension and provide future sample size estimates for definitive evidence. METHODS Randomized trials of antihypertensives for nonsevere pregnancy hypertension were identified from online electronic databases, to February 28, 2021 (registration URL: https://www.crd.york.ac.uk/PROSPERO/; unique identifier: CRD42020188725). Our outcomes were severe hypertension, proteinuria/preeclampsia, fetal/newborn death, small-for-gestational age infants, preterm birth, and admission to neonatal care. A Bayesian random-effects model generated estimates of direct and indirect treatment comparisons. Trial sequential analysis informed future trials needed. RESULTS Of 1246 publications identified, 72 trials were included; 61 (6923 women) were informative. All commonly prescribed antihypertensives (labetalol, other β-blockers, methyldopa, calcium channel blockers, and mixed/multi-drug therapy) versus placebo/no therapy reduced the risk of severe hypertension by 30% to 70%. Labetalol decreased proteinuria/preeclampsia (odds ratio, 0.73 [95% credible interval, 0.54-0.99]) and fetal/newborn death (odds ratio, 0.54 [0.30-0.98]) compared with placebo/no therapy, and proteinuria/preeclampsia compared with methyldopa (odds ratio, 0.66 [0.44-0.99]) and calcium channel blockers (odds ratio, 0.63 [0.41-0.96]). No other differences were identified, but credible intervals were wide. Trial sequential analysis indicated that 2500 to 10 000 women/arm (severe hypertension or safety outcomes) to >15 000/arm (fetal/newborn death) would be required to provide definitive evidence. CONCLUSIONS In summary, all commonly prescribed antihypertensives in pregnancy reduce the risk of severe hypertension, but labetalol may also decrease proteinuria/preeclampsia and fetal/newborn death. Evidence is lacking for many other safety outcomes. Prohibitive sample sizes are required for definitive evidence. Real-world data are needed to individualize care.
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Affiliation(s)
- Jeffrey N. Bone
- Department of Obstetrics and Gynaecology, University of British Columbia (UBC), Canada (J.N.B., A.S., S.P., S.O., M.V.)
| | - Akshdeep Sandhu
- Department of Obstetrics and Gynaecology, University of British Columbia (UBC), Canada (J.N.B., A.S., S.P., S.O., M.V.)
| | - Edgardo D. Abalos
- Centro Rosarino de Estudios Perinatales, Rosario, Argentina (E.D.A.)
| | - Asma Khalil
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, St George’s University Hospitals, NHS Foundation Trust, United Kingdom (A.K.).,Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George’s University of London, United Kingdom (A.K.)
| | - Joel Singer
- School of Population and Public Health, UBC, Canada (J.S.)
| | - Sarina Prasad
- Department of Obstetrics and Gynaecology, University of British Columbia (UBC), Canada (J.N.B., A.S., S.P., S.O., M.V.)
| | - Shazmeen Omar
- Department of Obstetrics and Gynaecology, University of British Columbia (UBC), Canada (J.N.B., A.S., S.P., S.O., M.V.)
| | - Marianne Vidler
- Department of Obstetrics and Gynaecology, University of British Columbia (UBC), Canada (J.N.B., A.S., S.P., S.O., M.V.)
| | - Peter von Dadelszen
- Department of Women and Children’s Health, King’s College London, United Kingdom (P.v.D., L.A.M.)
| | - Laura A. Magee
- Department of Women and Children’s Health, King’s College London, United Kingdom (P.v.D., L.A.M.)
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Toward personalized management of chronic hypertension in pregnancy. Am J Obstet Gynecol 2022; 226:S1196-S1210. [PMID: 32687817 PMCID: PMC7367795 DOI: 10.1016/j.ajog.2020.07.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/27/2020] [Accepted: 07/15/2020] [Indexed: 12/15/2022]
Abstract
Chronic hypertension complicates 1% to 2% of pregnancies, and it is increasingly common. Women with chronic hypertension are an easily recognized group who are in touch with a wide variety of healthcare providers before, during, and after pregnancy, mandating that chronic hypertension in pregnancy be within the scope of many practitioners. We reviewed recent data on management to inform current care and future research. This study is a narrative review of published literature. Compared with normotensive women, women with chronic hypertension are at an increased risk of maternal and perinatal complications. Women with chronic hypertension who wish to be involved in their care can do by measuring blood pressure at home. Accurate devices for home blood pressure monitoring are now readily available. The diagnostic criteria for superimposed preeclampsia remain problematic because most guidelines continue to include deteriorating blood pressure control in the definition. It has not been established how angiogenic markers may aid in confirmation of the diagnosis of superimposed preeclampsia when suspected, over and above information provided by routinely available clinical data and laboratory results. Although chronic hypertension is a strong risk factor for preeclampsia, and aspirin decreases preeclampsia risk, the effectiveness specifically among women with chronic hypertension has been questioned. It is unclear whether calcium has an independent effect in preeclampsia prevention in such women. Treating hypertension with antihypertensive therapy halves the risk of progression to severe hypertension, thrombocytopenia, and elevated liver enzymes, but a reduction in preeclampsia or serious maternal complications has not been observed; however, the lack of evidence for the latter is possibly owing to few events. In addition, treating chronic hypertension neither reduces nor increases fetal or newborn death or morbidity, regardless of the gestational age at which the antihypertensive treatment is started. Antihypertensive agents are not teratogenic, but there may be an increase in malformations associated with chronic hypertension itself. At present, blood pressure treatment targets used in clinics are the same as those used at home, although blood pressure values tend to be inconsistently lower at home among women with hypertension. Although starting all women on the same antihypertensive medication is usually effective in reducing blood pressure, it remains unclear whether there is an optimal agent for such an approach or how best to use combinations of antihypertensive medications. An alternative approach is to individualize care, using maternal characteristics and blood pressure features beyond blood pressure level (eg, variability) that are of prognostic value. Outcomes may be improved by timed birth between 38 0/7 and 39 6/7 weeks' gestation based on observational literature; of note, confirmatory trial evidence is pending. Postnatal care is facilitated by the acceptability of most antihypertensives (including angiotensin-converting enzymes inhibitors) for use in breastfeeding. The evidence base to guide the care of pregnant women with chronic hypertension is growing and aligning with international guidelines. Addressing outstanding research questions would inform personalized care of chronic hypertension in pregnancy.
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Lai J, Syngelaki A, Nicolaides KH, von Dadelszen P, Magee LA. Impact of new definitions of preeclampsia at term on identification of adverse maternal and perinatal outcomes. Am J Obstet Gynecol 2021; 224:518.e1-518.e11. [PMID: 33166504 DOI: 10.1016/j.ajog.2020.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/24/2020] [Accepted: 11/02/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Any definition of preeclampsia should identify women and babies at greatest risk of adverse outcomes. OBJECTIVE This study aimed to investigate the ability of the American College of Obstetricians and Gynecologists and International Society for the Study of Hypertension in Pregnancy definitions of preeclampsia at term gestational age (≥37 0/7 weeks) to identify adverse maternal and perinatal outcomes. STUDY DESIGN In this prospective cohort study at 2 maternity hospitals in England, women attending a routine hospital visit at 35 0/7 to 36 6/7 weeks' gestation underwent assessment that included history; ultrasonographic estimated fetal weight; Doppler measurements of the pulsatility index in the uterine, umbilical, and fetal middle cerebral arteries; and serum placental growth factor-to-soluble fms-like tyrosine kinase-1 ratio. Obstetrical records were examined for all women with chronic hypertension and those who developed new-onset hypertension, with preeclampsia (de novo or superimposed on chronic hypertension) defined in 5 ways: traditional, based on new-onset proteinuria; American College of Obstetricians and Gynecologists 2013 definition; International Society for the Study of Hypertension in Pregnancy maternal factors definition; International Society for the Study of Hypertension in Pregnancy maternal factors plus fetal death or fetal growth restriction definition, defined according to the 35 0/7 to 36 6/7 weeks' gestation scan as either estimated fetal weight <3rd percentile or estimated fetal weight at the 3rd to 10th percentile with any of uterine artery pulsatility index >95th percentile, umbilical artery pulsatility index >95th percentile, or middle cerebral artery pulsatility index <5th percentile; and International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance definition, defined as placental growth factor <5th percentile or soluble fms-like tyrosine kinase-1-to-serum placental growth factor >95th percentile. Detection rates for outcomes of interest (ie, severe maternal hypertension, major maternal morbidity, perinatal mortality or major neonatal morbidity, neonatal unit admission ≥48 hours, and birthweight <10th percentile) were compared using the chi-square test, and P<.05 was considered significant. RESULTS Among 15,248 singleton pregnancies, the identification of women with preeclampsia varied by definition: traditional, 15 of 281 (1.8%; 248); American College of Obstetricians and Gynecologists, 15 of 326 (2.1%; 248); International Society for the Study of Hypertension in Pregnancy maternal factors, 15 of 400 (2.6%; 248); International Society for the Study of Hypertension in Pregnancy maternal-fetal factors, 15 of 434 (2.8%; 248); and International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance, 15 of 500 (3.3%; 248). Compared with the traditional definition of preeclampsia, the International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance best identified the adverse outcomes: severe hypertension (40.6% [traditional] vs 66.9% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance, P<.0001], 59.2% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors, P=.004], 56.2% [International Society for the Study of Hypertension in Pregnancy maternal factors, P=.013], 46.1% [American College of Obstetricians and Gynecologists, P=.449]); P<.0001); composite maternal severe adverse event (72.2% [traditional] vs 100% for all others; P=.046); composite of perinatal mortality and morbidity (46.9% [traditional] vs 71.1% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance, P=.002], 62.2% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors, P=.06], 59.8% [International Society for the Study of Hypertension in Pregnancy maternal factors, P=.117], 49.4% [American College of Obstetricians and Gynecologists, P=.875]); neonatal unit admission for ≥48 hours (51.4% [traditional] vs 73.4% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance, P=.001], 64.5% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors, P=.070], 60.7% [International Society for the Study of Hypertension in Pregnancy maternal factors, P=.213], 53.3% [American College of Obstetricians and Gynecologists, P=.890]); birthweight <10th percentile (40.5% [traditional] vs 78.7% [International Society for the Study of Hypertension in Pregnancy maternal-fetal factors plus angiogenic imbalance, P<.0001], 70.1% [International Society for the Study of Hypertension in Pregnancy maternal-fetal, P<.0001], 51.3% [International Society for the Study of Hypertension in Pregnancy maternal factors, P=.064], 46.3% [American College of Obstetricians and Gynecologists, P=.349]). CONCLUSION Our findings present an evidence base for the broad definition of preeclampsia. Our data suggest that compared with a traditional definition, a broad definition of preeclampsia can better identify women and babies at risk of adverse outcomes. Compared with the American College of Obstetricians and Gynecologists definition, the more inclusive International Society for the Study of Hypertension in Pregnancy definition of maternal end-organ dysfunction seems to be more sensitive. The addition of uteroplacental dysfunction to the broad definition optimizes the identification of women and babies at risk, particularly when angiogenic factors are included.
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Magee LA, Singer J, Lee T, Rey E, Asztalos E, Hutton E, Helewa M, Logan AG, Ganzevoort W, Welch R, Thornton JG, Woo Kinshella ML, Green M, Tsigas E, von Dadelszen P. The impact of pre-eclampsia definitions on the identification of adverse outcome risk in hypertensive pregnancy - analyses from the CHIPS trial (Control of Hypertension in Pregnancy Study). BJOG 2021; 128:1373-1382. [PMID: 33230924 DOI: 10.1111/1471-0528.16602] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To examine the association between pre-eclampsia definition and pregnancy outcome. DESIGN Secondary analysis of Control of Hypertension in Pregnancy Study (CHIPS) trial data. SETTING International multicentre randomised controlled trial (RCT). POPULATION In all, 987 women with non-severe non-proteinuric pregnancy hypertension. METHODS We evaluated the association between pre-eclampsia definitions and adverse pregnancy outcomes, stratified by hypertension type and blood pressure control. MAIN OUTCOME MEASURES Main CHIPS trial outcomes: primary (perinatal loss or high-level neonatal care for >48 hours), secondary (serious maternal complications), birthweight <10th centile, severe maternal hypertension, delivery at <34 or <37 weeks, and maternal hospitalisation before birth. RESULTS Of 979/987 women with informative data, 280 (28.6%) progressed to pre-eclampsia defined restrictively by new proteinuria, and 471 (48.1%) to pre-eclampsia defined broadly as proteinuria or one/more maternal symptoms, signs or abnormal laboratory tests. The broad (versus restrictive) definition had significantly higher sensitivities (range 62-79% versus 36-50%), lower specificities (range 53-65% versus 72-82%), and similar or higher diagnostic odds ratios and 'true-positive' to 'false-positive' ratios. Stratified analyses showed similar results. Addition of available fetoplacental manifestations (stillbirth or birthweight <10th centile) to the broad pre-eclampsia definition improved sensitivity (74-87%). CONCLUSIONS A broad (versus restrictive) pre-eclampsia definition better identifies women who develop adverse pregnancy outcomes. These findings should be replicated in a prospective study within routine healthcare to ensure that the anticipated increase in surveillance and intervention in a larger number of women with pre-eclampsia is associated with improved outcomes, reasonable costs and congruence with women's values. TWEETABLE ABSTRACT A broad (versus restrictive) pre-eclampsia definition better identifies the risk of adverse pregnancy outcomes.
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Affiliation(s)
- L A Magee
- Department of Women and Children's Health, King's College London, London, UK
| | - J Singer
- School of Population and Public Health, Centre for Health Evaluation and Outcome Science, Providence Health Care Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - T Lee
- Centre for Health Evaluation and Outcome Science, Providence Health Care Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - E Rey
- Department of Medicine, Université de Montreal, Montreal, QC, Canada.,Department of Obstetrics and Gynaecology, Université de Montreal, Montreal, QC, Canada
| | - E Asztalos
- Pediatrics, University of Toronto, Toronto, ON, Canada
| | - E Hutton
- Midwifery, McMaster University, Hamilton, ON, Canada
| | - M Helewa
- Obstetrics and Gynaecology, University of Manitoba, Winnipeg, MB, Canada
| | - A G Logan
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - W Ganzevoort
- Department of Obstetrics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - R Welch
- University of Plymouth, Plymouth, UK
| | - J G Thornton
- Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK
| | | | - M Green
- Action on Pre-eclampsia Charity (APEC), Evesham, UK
| | - E Tsigas
- Preeclampsia Foundation, Melbourne, FL, USA
| | - P von Dadelszen
- Department of Women and Children's Health, King's College London, London, UK
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Li X, Zhang W, Lin J, Liu H, Yang Z, Teng Y, Huang J, Peng Q, Lin X, Zhang J, Xie L, Xie Y, Li Y, Luo J, Duan W, Chen J, Duan S. Hypertensive disorders of pregnancy and risks of adverse pregnancy outcomes: a retrospective cohort study of 2368 patients. J Hum Hypertens 2020; 35:65-73. [PMID: 32066825 DOI: 10.1038/s41371-020-0312-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 01/30/2020] [Accepted: 02/04/2020] [Indexed: 11/09/2022]
Abstract
Hypertensive disorders of pregnancy (HDP) comprise a group of hypertension-related diseases and represent the most common medical disorders in pregnancy. The aim of this study was to investigate the risks of adverse pregnancy outcomes in patients with different types of HDP, including gestational hypertension, chronic hypertension, preeclampsia (PE, early or late onset), PE superimposed on chronic hypertension (superimposed PE), eclampsia, and HELLP syndrome. Data from a multicenter retrospective patient cohort in China were analyzed. Seventeen adverse maternal or perinatal outcomes were evaluated. Logistic regression was used to estimate the risk of adverse outcomes for each HDP subgroups, using the gestational hypertension group as the reference. The final analysis included 2368 patients with HDP. Of these, 39.9% of patients reported at least one adverse pregnancy outcome. Patients with early onset PE had the highest risk for having both adverse maternal and perinatal outcomes (OR = 7.28, 95% CI: 2.68, 19.79). The risk of perinatal death significantly increased in HELLP syndrome, superimposed PE, and early onset PE, (OR = 13.81, 6.32, and 4.84, respectively, p < 0.05) groups. This study highlights that among patients with HDP, those with early onset PE had the highest risk for having both adverse maternal and perinatal outcomes, and patients with HELLP syndrome had the highest risk for perinatal death.
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Affiliation(s)
- Xun Li
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Weishe Zhang
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China. .,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China.
| | - Jianhua Lin
- Department of Obstetrics and Gynecology, Renji Hospital of Shanghai Jiaotong University School of Medicine, 145 Shandong Zhonglu, Shanghai, 20001, China.
| | - Huai Liu
- Department of Obstetrics, Jiangxi Maternal and Child Health Hospital, 318 BayiDadao, Nanchang, 330006, China
| | - Zujing Yang
- Department of Obstetrics, Xin Hua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Yincheng Teng
- Department of Obstetrics and Gynecology, Shanghai Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Jingrui Huang
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Qiaozhen Peng
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Xinxiu Lin
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Jiejie Zhang
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Liangqun Xie
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Yingming Xie
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Yuanqiu Li
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Jiefeng Luo
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Weifang Duan
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Jingfei Chen
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
| | - Si Duan
- Department of Obstetrics, Xiangya Hospital of Central South University, 87 Xiangya Road, Changsha, 410008, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, 87 Xiangya Road, Changsha, 410008, China
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Magee LA, Singer J, Lee T, McManus RJ, Lay-Flurrie S, Rey E, Chappell LC, Myers J, Logan AG, von Dadelszen P. Are blood pressure level and variability related to pregnancy outcome? Analysis of control of hypertension in pregnancy study data. Pregnancy Hypertens 2020; 19:87-93. [PMID: 31927325 DOI: 10.1016/j.preghy.2019.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 10/15/2019] [Accepted: 12/08/2019] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To examine the relationship between pregnancy outcomes and BP level and variability. DESIGN Secondary analysis of CHIPS trial data (Control of Hypertension In Pregnancy Study, NCT01192412). SETTING International. POPULATION OR SAMPLE Women with chronic or gestational hypertension. METHODS BP measurement was standardised in outpatient clinics. Adjusted (including for allocated group) mixed effects logistic regression was used to assess relationships between major CHIPS outcomes and both BP level (mean of clinic readings) and visit-to-visit within-participant BP variability (standard deviation and average real variability of absolute successive difference of BP values). BP values 7-28 days prior to outcomes (or birth for perinatal outcomes) were excluded in sensitivity analyses. MAIN OUTCOME MEASURES Major CHIPS outcomes. RESULTS Among 961 (97.4%) women, higher BP level was associated with more adverse maternal and perinatal outcomes (usually at p < 0.001) except for serious maternal complications. Among 913 (92.5%) women with at least two post-randomisation outpatient visits, higher BP variability was associated with increased odds of severe hypertension and pre-eclampsia (usually at p < 0.01). Sensitivity analyses suggested reverse causality for these maternal outcomes, but greater diastolic BP variability may have been associated with fewer adverse perinatal outcomes. CONCLUSIONS Higher BP is an adverse prognostic marker, regardless of target BP. While the association between higher BP variability and severe hypertension and pre-eclampsia may be related to higher BP at diagnosis, our results suggest a possible advantage of BP variability for the fetus, through undefined mechanisms. TWEETABLE ABSTRACT Higher blood pressure (BP) is associated with more adverse pregnancy outcomes, but higher BP variability may be good for the baby.
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Affiliation(s)
- Laura A Magee
- Department of Women and Children's Health, King's College London, UK.
| | - Joel Singer
- School of Population and Public Health, Centre for Health Evaluation and Outcome Science, Providence Health Care Research Institute, University of British Columbia, Vancouver, Canada
| | - Terry Lee
- Centre for Health Evaluation and Outcome Science, Providence Health Care Research Institute, University of British Columbia, Vancouver, Canada
| | - Richard J McManus
- Nuffield Department of Primary Care Health Sciences, University of Oxford, UK
| | - Sarah Lay-Flurrie
- Nuffield Department of Primary Care Health Sciences, University of Oxford, UK
| | - Evelyne Rey
- Departments of Medicine and Obstetrics and Gynaecology, Université de Montreal, Canada
| | - Lucy C Chappell
- Department of Women and Children's Health, King's College London, UK
| | - Jenny Myers
- Division of Developmental Biology and Medicine, Manchester Maternal & Fetal Health Research Centre, UK
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9
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Affiliation(s)
- Rachel G Sinkey
- From the Department of Obstetrics and Gynecology (R.G.S.), University of Alabama at Birmingham
| | - Suzanne Oparil
- Vascular Biology and Hypertension Program, Division of Cardiovascular Disease, Department of Medicine (S.O.), University of Alabama at Birmingham
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10
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Women's views and postpartum follow-up in the CHIPS Trial (Control of Hypertension in Pregnancy Study). Eur J Obstet Gynecol Reprod Biol 2016; 206:105-113. [DOI: 10.1016/j.ejogrb.2016.07.509] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 07/11/2016] [Accepted: 07/26/2016] [Indexed: 11/19/2022]
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Roberts RP, Refuerzo JS, Ferrari F, Ontiveros AE, Tamayo EH, Sibai BM, Blackwell SC, Longo M. Sildenafil treatment in a nonsevere hypertensive murine model lowers blood pressure without reducing fetal growth. Am J Obstet Gynecol 2016; 215:386.e1-8. [PMID: 27177526 DOI: 10.1016/j.ajog.2016.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Treatment of nonsevere hypertension during pregnancy is controversial. Sildenafil is a phosphodiesterase inhibitor that potentiates nitric oxide by promoting vasodilation. Nitric oxide plays a vital role in mediating the vascular adaptations during pregnancy. OBJECTIVE The objective of the study was to determine whether treatment with sildenafil during pregnancy would lower maternal systolic blood pressure without adversely affecting fetal growth. STUDY DESIGN Females with nonsevere hypertension (endothelial nitric oxide synthase(+/-)) were cross-bred with normotensive wild-type males. At gestational day 1, pregnant dams were randomized to either sildenafil (0.4 mg/mL per day, comparable dose used in human pregnancy) or water for 3 weeks. Four groups were then generated: wild type (n = 7), wild type-sildenafil (n = 11), endothelial nitric oxide synthase(+/-) (n = 8), and endothelial nitric oxide synthase(+/-)sildenafil (n = 7). On gestational day 18, systolic blood pressure was measured. Dams were killed, fetal and placental weights were obtained, and carotid arteries were dissected to measure in vitro vascular reactivity with a wire-myography system. Responses to phenylephrine, L-NG-nitroarginine methyl ester, acetylcholine, and sodium nitroprusside were studied. RESULTS Mean systolic blood pressure was elevated in the endothelial nitric oxide synthase(+/-) dams compared with wild-type controls (P = .03). Treatment with sildenafil decreased systolic blood pressure in the endothelial nitric oxide synthase(+/-)-treated dams compared with nontreated endothelial nitric oxide synthase(+/-) dams (P = .03). No differences were seen in the wild-type dams with or without sildenafil (P = .47). Fetuses from endothelial nitric oxide synthase(+/-) dams were smaller compared with wild-type controls (P < .001); however, when these endothelial nitric oxide synthase(+/-) dams were treated with sildenafil, fetal weight increased compared with the nontreated endothelial nitric oxide synthase(+/-) group (P < .001). No difference were seen in wild-type groups treated or not treated with sildenafil (P = .41). Placental weights were not significantly different among groups (endothelial nitric oxide synthase(+/-)sildenafil vs endothelial nitric oxide synthase(+/-) [P = .48]; wild-type-sildenafil vs wild type [P = .52]). Maximal vascular contraction induced by phenylephrine was blunted in endothelial nitric oxide synthase(+/-) dams treated with sildenafil compared with nontreated endothelial nitric oxide synthase(+/-) dams (P < .01). No change in contractile response was seen in wild-type groups treated or not treated (P = .53). When vessels were preincubated with L-NG-nitroarginine methyl ester, the contractile responses were similar among all groups (P = .54). In addition, maximal vascular relaxation induced by acetylcholine was improved in the endothelial nitric oxide synthase(+/-) dams treated with sildenafil compared with endothelial nitric oxide synthase(+/-) nontreated dams (P < .01). No change in relaxation response was seen in wild-type groups treated or not treated (P = .62). Sodium nitroprusside did not change the contractile response in any of the groups (P = .31). CONCLUSION Pregnant dams deficient in endothelial nitric oxide synthase, a nonsevere hypertensive murine model, treated with sildenafil had lower maternal systolic blood pressure, increased fetal growth, and improvement in vascular reactivity. Treatment with sildenafil may be beneficial in pregnancies complicated by nonsevere hypertension.
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Khowaja AR, Qureshi RN, Sawchuck D, Oladapo OT, Adetoro OO, Orenuga EA, Bellad M, Mallapur A, Charantimath U, Sevene E, Munguambe K, Boene HE, Vidler M, Bhutta ZA, von Dadelszen P. The feasibility of community level interventions for pre-eclampsia in South Asia and Sub-Saharan Africa: a mixed-methods design. Reprod Health 2016; 13 Suppl 1:56. [PMID: 27357579 PMCID: PMC4943500 DOI: 10.1186/s12978-016-0133-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Globally, pre-eclampsia and eclampsia are major contributors to maternal and perinatal mortality; of which the vast majority of deaths occur in less developed countries. In addition, a disproportionate number of morbidities and mortalities occur due to delayed access to health services. The Community Level Interventions for Pre-eclampsia (CLIP) Trial aims to task-shift to community health workers the identification and emergency management of pre-eclampsia and eclampsia to improve access and timely care. Literature revealed paucity of published feasibility assessments prior to initiating large-scale community-based interventions. Arguably, well-conducted feasibility studies can provide valuable information about the potential success of clinical trials prior to implementation. Failure to fully understand the study context risks the effective implementation of the intervention and limits the likelihood of post-trial scale-up. Therefore, it was imperative to conduct community-level feasibility assessments for a trial of this magnitude. METHODS A mixed methods design guided by normalization process theory was used for this study in Nigeria, Mozambique, Pakistan, and India to explore enabling and impeding factors for the CLIP Trial implementation. Qualitative data were collected through participant observation, document review, focus group discussion and in-depth interviews with diverse groups of community members, key informants at community level, healthcare providers, and policy makers. Quantitative data were collected through health facility assessments, self-administered community health worker surveys, and household demographic and health surveillance. RESULTS Refer to CLIP Trial feasibility publications in the current and/or forthcoming supplement. CONCLUSIONS Feasibility assessments for community level interventions, particularly those involving task-shifting across diverse regions, require an appropriate theoretical framework and careful selection of research methods. The use of qualitative and quantitative methods increased the data richness to better understand the community contexts. TRIAL REGISTRATION NCT01911494.
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Affiliation(s)
- Asif Raza Khowaja
- />Division of Women & Child Health, Aga Khan University, Karachi, Pakistan
- />Department of Obstetrics and Gynaecology, and the Child and Family Research Institute, University of British Columbia, Vancouver, Canada
| | | | - Diane Sawchuck
- />Department of Obstetrics and Gynaecology, and the Child and Family Research Institute, University of British Columbia, Vancouver, Canada
| | - Olufemi T. Oladapo
- />Centre for Research in Reproductive Health (CRRH), Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State Nigeria
| | - Olalekan O. Adetoro
- />Centre for Research in Reproductive Health (CRRH), Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State Nigeria
| | - Elizabeth A. Orenuga
- />Centre for Research in Reproductive Health (CRRH), Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State Nigeria
| | - Mrutyunjaya Bellad
- />KLE University’s JN Medical College, Belgaum & SN Medical College, Bagalkot, India
| | - Ashalata Mallapur
- />KLE University’s JN Medical College, Belgaum & SN Medical College, Bagalkot, India
| | - Umesh Charantimath
- />KLE University’s JN Medical College, Belgaum & SN Medical College, Bagalkot, India
| | - Esperança Sevene
- />Manhiça Health Research Centre (CISM), Mozambique and Faculty of Medicine, Universidade Eduardo Mondlane (UEM), Maputo, Mozambique
| | - Khátia Munguambe
- />Manhiça Health Research Centre (CISM), Mozambique and Faculty of Medicine, Universidade Eduardo Mondlane (UEM), Maputo, Mozambique
| | - Helena Edith Boene
- />Manhiça Health Research Centre (CISM), Mozambique and Faculty of Medicine, Universidade Eduardo Mondlane (UEM), Maputo, Mozambique
| | - Marianne Vidler
- />Department of Obstetrics and Gynaecology, and the Child and Family Research Institute, University of British Columbia, Vancouver, Canada
| | - Zulfiqar A. Bhutta
- />Division of Women & Child Health, Aga Khan University, Karachi, Pakistan
| | - Peter von Dadelszen
- />Department of Obstetrics and Gynaecology, and the Child and Family Research Institute, University of British Columbia, Vancouver, Canada
| | - CLIP Working Group
- />Division of Women & Child Health, Aga Khan University, Karachi, Pakistan
- />Department of Obstetrics and Gynaecology, and the Child and Family Research Institute, University of British Columbia, Vancouver, Canada
- />Centre for Research in Reproductive Health (CRRH), Olabisi Onabanjo University Teaching Hospital, Sagamu, Ogun State Nigeria
- />KLE University’s JN Medical College, Belgaum & SN Medical College, Bagalkot, India
- />Manhiça Health Research Centre (CISM), Mozambique and Faculty of Medicine, Universidade Eduardo Mondlane (UEM), Maputo, Mozambique
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13
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Magee LA, von Dadelszen P, Singer J, Lee T, Rey E, Ross S, Asztalos E, Murphy KE, Menzies J, Sanchez J, Gafni A, Gruslin A, Helewa M, Hutton E, Lee SK, Logan AG, Ganzevoort W, Welch R, Thornton JG, Moutquin JM. Can adverse maternal and perinatal outcomes be predicted when blood pressure becomes elevated? Secondary analyses from the CHIPS (Control of Hypertension In Pregnancy Study) randomized controlled trial. Acta Obstet Gynecol Scand 2016; 95:763-76. [PMID: 26915709 PMCID: PMC5021204 DOI: 10.1111/aogs.12877] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/02/2016] [Indexed: 01/19/2023]
Abstract
Introduction For women with chronic or gestational hypertension in CHIPS (Control of Hypertension In Pregnancy Study, NCT01192412), we aimed to examine whether clinical predictors collected at randomization could predict adverse outcomes. Material and methods This was a planned, secondary analysis of data from the 987 women in the CHIPS Trial. Logistic regression was used to examine the impact of 19 candidate predictors on the probability of adverse perinatal (pregnancy loss or high level neonatal care for >48 h, or birthweight <10th percentile) or maternal outcomes (severe hypertension, preeclampsia, or delivery at <34 or <37 weeks). A model containing all candidate predictors was used to start the stepwise regression process based on goodness of fit as measured by the Akaike information criterion. For face validity, these variables were forced into the model: treatment group (“less tight” or “tight” control), antihypertensive type at randomization, and blood pressure within 1 week before randomization. Continuous variables were represented continuously or dichotomized based on the smaller p‐value in univariate analyses. An area‐under‐the‐receiver‐operating‐curve (AUC ROC) of ≥0.70 was taken to reflect a potentially useful model. Results Point estimates for AUC ROC were <0.70 for all but severe hypertension (0.70, 95% CI 0.67–0.74) and delivery at <34 weeks (0.71, 95% CI 0.66–0.75). Therefore, no model warranted further assessment of performance. Conclusions CHIPS data suggest that when women with chronic hypertension develop an elevated blood pressure in pregnancy, or formerly normotensive women develop new gestational hypertension, maternal and current pregnancy clinical characteristics cannot predict adverse outcomes in the index pregnancy.
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Affiliation(s)
- Laura A Magee
- St. George's University of London, London, UK.,St. George's University Hospitals NHS Trust, London, UK.,Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada.,Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Peter von Dadelszen
- St. George's University of London, London, UK.,St. George's University Hospitals NHS Trust, London, UK.,Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada.,Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joel Singer
- Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada.,School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Terry Lee
- Centre for Health Evaluation and Outcome Sciences (CH_EOS), Providence Health Care Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Evelyne Rey
- Medicine and Obstetrics and Gynaecology, University of Montreal, Montreal, Quebec, Canada
| | - Susan Ross
- Obstetrics and Gynaecology, University of Alberta, Edmonton, Alberta, Canada
| | - Elizabeth Asztalos
- Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Obstetrics and Gynaecology, University of Toronto, Toronto, Ontario, Canada.,The Centre for Mother, Infant and Child Research, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Kellie E Murphy
- Obstetrics and Gynaecology, University of Toronto, Toronto, Ontario, Canada.,The Centre for Mother, Infant and Child Research, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Jennifer Menzies
- Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Johanna Sanchez
- The Centre for Mother, Infant and Child Research, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Amiram Gafni
- Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
| | - Andrée Gruslin
- Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
| | - Michael Helewa
- Obstetrics and Gynaecology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Eileen Hutton
- Obstetrics and Gynaecology, McMaster University, Hamilton, Ontario, Canada
| | - Shoo K Lee
- Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | | | - Wessel Ganzevoort
- Obstetrics and Gynaecology, University of Amsterdam, Amsterdam, the Netherlands
| | - Ross Welch
- Obstetrics and Gynaecology, Derriford Hospital, Plymouth, UK
| | - Jim G Thornton
- Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK
| | - Jean Marie Moutquin
- Obstetrics and Gynaecology, Sherbrooke University, Sherbrooke, Quebec, Canada
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Antunes NDJ, Cavalli RC, Marques MP, Moisés ECD, Lanchote VL. Influence of gestational diabetes on the stereoselective pharmacokinetics and placental distribution of metoprolol and its metabolites in parturients. Br J Clin Pharmacol 2015; 79:605-16. [PMID: 25291152 DOI: 10.1111/bcp.12523] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/19/2014] [Indexed: 12/26/2022] Open
Abstract
AIM To investigate the influence of gestational diabetes mellitus (GDM) on the kinetic disposition and transplacental and amniotic fluid distribution of metoprolol and its metabolites O-desmethylmetoproloic acid and α-hydroxymetoprolol stereoisomers in hypertensive parturients receiving a single dose of the racemic drug. METHODS The study was conducted on hypertensive parturients with well-controlled GDM (n = 11) and non-diabetic hypertensive parturients (n = 24), all receiving a single 100 mg oral dose of racemic metoprolol tartrate before delivery. Serial maternal blood samples (0-24 h) and umbilical blood and amniotic fluid samples were collected for the quantitation of metoprolol and its metabolite stereoisomers using LC-MS/MS or fluorescence detection. RESULTS The kinetic disposition of metoprolol and its metabolites was stereoselective in the diabetic and control groups. Well-controlled GDM prolonged tmax for both enantiomers of metoprolol (1.5 vs. 2.5 h R-(+)-MET; 1.5 vs. 2.75 h S-(-)-MET) and O-desmethylmetoproloic acid (2.0 vs. 3.5 h R-(+)-AOMD; 2.0 vs. 3.0 h S-(-)-OAMD), and for the four stereoisomers of α-hydroxymetoprolol (2.0 vs. 3.0 h for 1'S,2R-, 1'R,2R- and 1'R,2S-OHM; 2.0 vs. 3.5 h for 1'S,2S-OHM) and reduced the transplacental distribution of 1'S,2S-, 1'R,2R-, and 1'R,2S-OHM by approximately 20%. CONCLUSIONS The kinetic disposition of metoprolol was enantioselective, with plasma accumulation of the S-(-)-MET eutomer. Well-controlled GDM prolonged the tmax of metoprolol and O-desmethylmetoproloic acid enantiomers and the α-hydroxymetoprolol stereoisomers and reduced by about 20% the transplacental distribution of 1'S,2S-, 1'R,2R-, and 1'R,2S-OHM. Thus, well-controlled GDM did not change the activity of CYP2D6 and CYP3A involved in metoprolol metabolism.
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Affiliation(s)
- Natalícia de Jesus Antunes
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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15
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Mathur P, Mathur P, Maru L, Dave A. A Prospective Study of Placental Growth Factor Assay as a Novel Biomarker in Predicting Early-Onset Preeclampsia in High-Risk Patients. J Obstet Gynaecol India 2015; 66:98-103. [PMID: 27651586 DOI: 10.1007/s13224-015-0793-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 09/21/2015] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Preeclampsia is a leading cause of maternal and perinatal mortality and morbidity, but signs and symptoms are non-specific and may vary. The root cause is imbalance of circulating angiogenic factors of placental (syncytiotrophoblast) origin, with consequent low levels of placental growth factor (PlGF) which may aid in diagnosis and prediction of disease. AIMS AND OBJECTIVES To study the incidence of women at risk of developing early-onset preeclampsia by plasma placental growth factor biomarker assay in high-risk patients, to assess the maternal outcome in patients with PlGF values below cutoff for presenting gestational age, to calculate sensitivity, specificity, positive predictive value and negative predictive value of PlGF assay in predicting preeclampsia and to conclude whether PlGF biomarker assay can be an effective screening test in high-risk patients for prediction of early-onset preeclampsia. MATERIALS AND METHODS The study was carried out in the Department of Obstetrics and Gynecology at a tertiary care center. It is a prospective study, and study period extended from April 2012 to October 2013. One hundred pregnant women with 20- to 34-week gestational age with possible high risk of developing preeclampsia attending the antenatal clinics and high-risk OPDs were screened in the present study after explaining the nature of the study. PLGF concentration was quantitated using plasma and processed in Triage kit device (fluorescence immunoassay device). PLGF concentration was categorized against a specific range for specific gestation, and values below the range or <12 pg/ml were considered screened positives. The cases were followed up till delivery. RESULTS Twenty-two cases were screened positive, of which 20 developed preeclampsia with a strong positive prediction value of more than 90 %. CONCLUSION PLGF is a strong predictor and a useful assay for early-onset preeclampsia.
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Affiliation(s)
- Pooja Mathur
- MGM Medical College Indore, F-5 Radio Colony, Residency Area, Indore, 452001 India
| | - Poonam Mathur
- MGM Medical College Indore, F-5 Radio Colony, Residency Area, Indore, 452001 India
| | - Laxmi Maru
- MGM Medical College Indore, F-5 Radio Colony, Residency Area, Indore, 452001 India
| | - Anupama Dave
- MGM Medical College Indore, F-5 Radio Colony, Residency Area, Indore, 452001 India
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16
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Magee LA, Namouz-Haddad S, Cao V, Koren G, von Dadelszen P. Labetalol for hypertension in pregnancy. Expert Opin Drug Saf 2015; 14:453-61. [PMID: 25692529 DOI: 10.1517/14740338.2015.998197] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Labetalol is one of the most commonly used antihypertensive medications for the treatment of hypertension during pregnancy, an increasingly common and leading cause of maternal mortality and morbidity worldwide. AREAS COVERED The literature reviewed included the 2014 Canadian national pregnancy hypertension guideline and its references. The additional published literature was retrieved through searches of Medline, CINAHL, and The Cochrane Library using appropriate controlled vocabulary (e.g., pregnancy, hypertension, pre-eclampsia, pregnancy toxemias) and key words (e.g., diagnosis, evaluation, classification, prediction, prevention, prognosis, treatment, and postpartum follow-up).Results were restricted to systematic reviews, randomized controlled trials, controlled clinical trials, and observational studies published in French or English, Jan-Mar/14. The unpublished literature was identified by searching websites of health technology assessment and health technology-related agencies, clinical practice guideline collections, clinical trial registries, and national and international medical specialty societies. We evaluated the impact of interventions on substantive clinical outcomes for mothers and babies. EXPERT OPINION Labetalol is a reasonable choice for treatment of severe or non-severe hypertension in pregnancy. However, we should continue our search for other therapeutic options.
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Affiliation(s)
- Laura A Magee
- University of British Columbia, BC Women's Hospital and Health Centre , 4500 Oak Street, Room 1U59, Vancouver, BC V6H 3N1 , Canada +1 604 875 3054; +1 604 875 2424; Ext: 6012 ; +1 604 875 3212 ;
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17
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Oude Rengerink K, Logtenberg S, Hooft L, Bossuyt PM, Mol BW. Pregnant womens' concerns when invited to a randomized trial: a qualitative case control study. BMC Pregnancy Childbirth 2015; 15:207. [PMID: 26341516 PMCID: PMC4560072 DOI: 10.1186/s12884-015-0641-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 08/28/2015] [Indexed: 02/05/2023] Open
Abstract
Background Pregnant women were excluded from clinical trials until the 1990s, but the Food and Drug Administration nowadays allows - and even encourages - responsible inclusion of pregnant women in trials with adequate safety monitoring. Still, randomized trials in pregnant women face specific enrolment challenges. Previous studies have focused on barriers to trial participation in studies that had failed to recruit sufficient participants. Our aim was to identify barriers and motivators for participation in a range of clinical trials being conducted in the Netherlands, regardless of recruitment performance. Methods We performed a qualitative case control study in women who had been asked in 2010 to participate in one of eight clinical trials during pregnancy or shortly after giving birth. Both participants and non-participants of these clinical trials were invited for a face-to-face interview that addressed motives for participation and non-participation. We started the interview in an open fashion, asking the women for their main motive for participation or non-participation. When no new information emerged in this open part, we continued with a semi-structured interview, guided by a topic list. Transcripts of the interviews were analysed using a constant-comparative approach. Two researchers identified barriers and facilitators for participation, conjoined into main themes. Results Of 28 women invited for the interview, 21 agreed to be interviewed (12 participants and 9 non-participants). For 5 of the 12 participants, contribution to scientific research was their main motive, while 5 had participated because the intervention seemed favorable and was not available outside the trial. Key motives for non-participation (n = 9) were a negative association or a dislike of the intervention, either because it might do harm (n = 6) or for practical reasons (n = 3). Combining the open and topic list guided interviews we constructed seven main themes that influence the pregnant women’s decision to participate: external influence, research and healthcare, perception own situation, study design, intervention, information and counselling, and uncertainty. Conclusions Among seven main themes that influence pregnant women’s decision to participate, uncertainty about scientific research or the intervention was reported to be of considerable importance. Measures should be taken to habituate pregnant women more to scientific research, and further evaluation of opt-out consent deserves attention. Electronic supplementary material The online version of this article (doi:10.1186/s12884-015-0641-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katrien Oude Rengerink
- Academic Medical Center, Department of Obstetrics and Gynaecology, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Sabine Logtenberg
- Onze Lieve Vrouwen Gasthuis, Department of Obstetrics and Gynaecology, Oosterpark 9, 1091 AC, Amsterdam, The Netherlands.
| | - Lotty Hooft
- Department of Epidemiology, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - Patrick M Bossuyt
- Academic Medical Center, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam, The Netherlands.
| | - Ben Willem Mol
- The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, Adelaide, Australia.
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Magee LA, Dadelszen P, Singer J, Lee T, Rey E, Ross S, Asztalos E, Murphy KE, Menzies J, Sanchez J, Gafni A, Gruslin A, Helewa M, Hutton E, Koren G, Lee SK, Logan AG, Ganzevoort JW, Welch R, Thornton JG, Moutquin J. Control of Hypertension In Pregnancy Study randomised controlled trial—are the results dependent on the choice of labetalol or methyldopa? BJOG 2015; 123:1135-41. [DOI: 10.1111/1471-0528.13568] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2015] [Indexed: 12/01/2022]
Affiliation(s)
- LA Magee
- Medicine University of British Columbia Vancouver BC Canada
- Obstetrics and Gynaecology University of British Columbia Vancouver BC Canada
- School of Population and Public Health University of British Columbia Vancouver BC Canada
| | - P Dadelszen
- Obstetrics and Gynaecology University of British Columbia Vancouver BC Canada
- School of Population and Public Health University of British Columbia Vancouver BC Canada
| | - J Singer
- School of Population and Public Health University of British Columbia Vancouver BC Canada
- Centre for Health Evaluation and Outcome Sciences (CHÉOS) Providence Health Care Research Institute UBC Vancouver BC Canada
| | - T Lee
- Centre for Health Evaluation and Outcome Sciences (CHÉOS) Providence Health Care Research Institute UBC Vancouver BC Canada
| | - E Rey
- Medicine and Obstetrics and Gynaecology University of Montreal Montreal QC Canada
| | - S Ross
- Obstetrics and Gynaecology University of Alberta Edmonton AB Canada
| | - E Asztalos
- Paediatrics University of Toronto Toronto ON Canada
- Obstetrics and Gynaecology University of Toronto Toronto ON Canada
- The Centre for Mother Infant and Child Research Sunnybrook Research Institute University of Toronto Toronto ON Canada
| | - KE Murphy
- Obstetrics and Gynaecology University of Toronto Toronto ON Canada
- The Centre for Mother Infant and Child Research Sunnybrook Research Institute University of Toronto Toronto ON Canada
| | - J Menzies
- Obstetrics and Gynaecology University of British Columbia Vancouver BC Canada
| | - J Sanchez
- The Centre for Mother Infant and Child Research Sunnybrook Research Institute University of Toronto Toronto ON Canada
| | - A Gafni
- Clinical Epidemiology and Biostatistics McMaster University Hamilton ON Canada
| | - A Gruslin
- Obstetrics and Gynaecology University of Ottawa Ottawa ON Canada
| | - M Helewa
- Obstetrics and Gynaecology University of Manitoba Winnipeg MB Canada
| | - E Hutton
- Obstetrics and Gynaecology McMaster University Hamilton ON Canada
| | - G Koren
- Paediatrics University of Toronto Toronto ON Canada
| | - SK Lee
- Paediatrics University of Toronto Toronto ON Canada
| | - AG Logan
- Medicine University of Toronto Toronto ON Canada
| | - JW Ganzevoort
- Obstetrics and Gynaecology University of Amsterdam Amsterdam the Netherlands
| | - R Welch
- Obstetrics and Gynaecology Derriford Hospital Plymouth UK
| | - JG Thornton
- Obstetrics and Gynaecology University of Nottingham Nottingham UK
| | - J‐M Moutquin
- Obstetrics and Gynaecology Universite de Sherbrooke Sherbrooke QC Canada
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Magee LA, Pels A, Helewa M, Rey E, von Dadelszen P, Audibert F, Bujold E, Côté AM, Douglas MJ, Eastabrook G, Firoz T, Gibson P, Gruslin A, Hutcheon J, Koren G, Lange I, Leduc L, Logan AG, MacDonell KL, Moutquin JM, Sebbag I. The hypertensive disorders of pregnancy (29.3). Best Pract Res Clin Obstet Gynaecol 2015; 29:643-57. [DOI: 10.1016/j.bpobgyn.2015.04.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 04/02/2015] [Accepted: 04/02/2015] [Indexed: 11/28/2022]
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Magee LA, von Dadelszen P, Rey E, Ross S, Asztalos E, Murphy KE, Menzies J, Sanchez J, Singer J, Gafni A, Gruslin A, Helewa M, Hutton E, Lee SK, Lee T, Logan AG, Ganzevoort W, Welch R, Thornton JG, Moutquin JM. Less-tight versus tight control of hypertension in pregnancy. N Engl J Med 2015; 372:407-17. [PMID: 25629739 DOI: 10.1056/nejmoa1404595] [Citation(s) in RCA: 360] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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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Affiliation(s)
- Laura A Magee
- From the Departments of Medicine (L.A.M.) and Obstetrics and Gynaecology (L.A.M., P.D., J.M.), the School of Population and Public Health (L.A.M., P.D., J. Singer), and the Centre for Health Evaluation and Outcome Sciences, Providence Health Care Research Institute (J. Singer, T.L.), University of British Columbia, Vancouver; the Departments of Medicine and Obstetrics and Gynaecology, University of Montreal, Montreal (E.R.); the Department of Obstetrics and Gynaecology, University of Alberta, Edmonton (S.R.); the Departments of Obstetrics and Gynaecology (E.A., K.E.M.), Paediatrics (E.A., S.K.L.), and Medicine (A.G.L.) and the Centre for Mother, Infant, and Child Research, Sunnybrook Research Institute (E.A., K.E.M., J. Sanchez), University of Toronto, Toronto; the Departments of Clinical Epidemiology and Biostatistics (A. Gafni) and Obstetrics and Gynaecology (E.H.), McMaster University, Hamilton, ON; the Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa (A. Gruslin); the Department of Obstetrics and Gynaecology, University of Manitoba, Winnipeg (M.H.); and the Department of Obstetrics and Gynaecology, Université de Sherbrooke, Sherbrooke, QC (J.-M.M.) - all in Canada; the Department of Obstetrics and Gynecology, University of Amsterdam, Amsterdam (W.G.); and the Department of Obstetrics and Gynaecology, Derriford Hospital, Devon (R.W.), and the Department of Obstetrics and Gynaecology, University of Nottingham, Nottingham (J.G.T.) - both in the United Kingdom
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21
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Gillon TER, Pels A, von Dadelszen P, MacDonell K, Magee LA. Hypertensive disorders of pregnancy: a systematic review of international clinical practice guidelines. PLoS One 2014; 9:e113715. [PMID: 25436639 PMCID: PMC4249974 DOI: 10.1371/journal.pone.0113715] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/28/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Clinical practice guidelines (CPGs) are developed to assist health care providers in decision-making. We systematically reviewed existing CPGs on the HDPs (hypertensive disorders of pregnancy) to inform clinical practice. METHODOLOGY & PRINCIPAL FINDINGS MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Cochrane Methodology Register, Health Technology Assessments, and Database of Abstracts of Reviews of Effects (Ovid interface), Grey Matters, Google Scholar, and personal records were searched for CPGs on the HDPs (Jan/03 to Nov/13) in English, French, Dutch, or German. Of 13 CPGs identified, three were multinational and three developed for community/midwifery use. Length varied from 3-1188 pages and three guidelines did not formulate recommendations. Eight different grading systems were identified for assessing evidence quality and recommendation strength. No guideline scored ≧80% on every domain of the AGREE II, a tool for assessing guideline methodological quality; two CPGs did so for 5/6 domains. Consistency was seen for (i) definitions of hypertension, proteinuria, chronic and gestational hypertension; (ii) pre-eclampsia prevention for women at increased risk: calcium when intake is low and low-dose aspirin, but not vitamins C and E or diuretics; (iii) antihypertensive treatment of severe hypertension; (iv) MgSO4 for eclampsia and severe pre-eclampsia; (v) antenatal corticosteroids at <34 wks when delivery is probable within 7 days; (vi) delivery for women with severe pre-eclampsia pre-viability or pre-eclampsia at term; and (vii) active management of the third stage of labour with oxytocin. Notable inconsistencies were in: (i) definitions of pre-eclampsia and severe pre-eclampsia; (ii) target BP for non-severe hypertension; (iii) timing of delivery for women with pre-eclampsia and severe pre-eclampsia; (iv) MgSO4 for non-severe pre-eclampsia, and (v) postpartum maternal monitoring. CONCLUSIONS Existing international HDP CPGs have areas of consistency with which clinicians and researchers can work to develop auditable standards, and areas of inconsistency that should be addressed by future research.
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Affiliation(s)
| | - Anouk Pels
- Academic Medical Center, Amsterdam, The Netherlands
| | - Peter von Dadelszen
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada
- Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Karen MacDonell
- College of Physicians and Surgeons of British Columbia, Vancouver, British Columbia, Canada
| | - Laura A. Magee
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada
- Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Medicine, BC Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
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Kumar S, Bansal D, Hota D, Jain M, Singh P, Pandey BL. Assessment of clinical outcomes and prescribing behavior among inpatients with severe preeclampsia and eclampsia: an Indian experience. Indian J Pharmacol 2014; 46:18-23. [PMID: 24550579 PMCID: PMC3912801 DOI: 10.4103/0253-7613.125159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 04/23/2013] [Accepted: 11/21/2013] [Indexed: 11/07/2022] Open
Abstract
Objectives: The study aims to evaluate the management, maternal-fetal outcomes, and prescription behavior among inpatients with severe preeclampsia and eclampsia. Materials and Methods: This prospective cohort study in a tertiary referral center was conducted in 164 inpatient pregnant women who fulfilled the inclusion criteria. The study was conducted between November 2005 and February 2007. The patients were followed-up till delivery. Antepartum and intrapartum care and maternal and perinatal outcome were noted. Chief outcome measures were maternal and perinatal mortality and drug use indicators. Results: Median age at delivery of the women was 25 (22-28) years. Majority were suffering from antepartum eclampsia (52.5%), followed by preeclampsia (31%) and postpartum eclampsia (16.5%). Nulliparity (61.6%) was more common in eclampsia, while multiparity in preclamptic group. A total of 48% had preterm delivery. Most presented with headache (50%) and hyperreflexia (29%). Only 15% presented with all three prodromal symptoms and 86% had hypertension. There was increased morbidity, operative intervention, and admission to intensive care unit. Most babies (67%) weighed <2.5 kg and had poor outcome. The maternal mortality was 0.4/1000. Average number of drugs prescribed in patients of preeclampsia, antepartum eclampsia, and postpartum eclampsia were 13.2, 14.9, and 14.2, respectively. Antibiotics (24.6%) were the most common class of the drugs prescribed in all the groups, followed by vitamin and calcium supplements (22.7%) and antihypertensives (13.5%). Most common antihypertensive used were calcium channel blockers and anticonvulsant magnesium sulphate. Conclusions: There was increased maternal and perinatal morbidity. Protocols for the management of eclampsia, including antihypertensive and anticonvulsant therapies, should be available and reviewed regularly to improve the standard of care and reduce the prevalence of this dangerous condition.
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Affiliation(s)
- Shefalika Kumar
- Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Dipika Bansal
- Department of Pharmacy Practice, Clinical Research Unit, National Institute of Pharmaceutical Education and Research, Mohali, India
| | - Debasish Hota
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhu Jain
- Department of Obstetrics and Gynecology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Pawan Singh
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - B L Pandey
- Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Abstract
Hypertensive disorders of pregnancy represent the second commonest cause of direct maternal death and complicate an estimated 5-10 % of pregnancies. Classification systems aim to separate hypertension similar to that seen outside pregnancy (chronic and gestational hypertension) from the potentially fatal pregnancy-specific conditions. Preeclampsia, HELLP syndrome, and eclampsia represent increasing severities of this disease spectrum. The American College of Obstetricians and Gynecologists' 2013 guidelines no longer require proteinuria as a diagnostic criterion, because of its variable appearance in the disease spectrum. The cause involves inadequate cytotrophoblastic invasion of the myometrium, resulting in placental hypoperfusion and diffuse maternal endothelial dysfunction. Changes in angiogenic and antiangiogentic peptide profiles precede the onset of clinical preeclampsia. Women with preeclampsia should be closely monitored and receive magnesium sulfate intravenously if severe features, HELLP syndrome, or eclampsia occur. Definitive therapy is delivery of the fetus. Hypertension in pregnancy increases future maternal risk of hypertension and cardiovascular disorders.
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Affiliation(s)
- Amanda R Vest
- Heart Failure Fellow, Heart and Vascular Institute, Cleveland Clinic, Ohio, 9500 Euclid Avenue, Cleveland, OH, 44195, USA,
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24
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Abstract
Hypertensive disorders represent major causes of pregnancy-related maternal mortality worldwide. Similar to the non-pregnant population, hypertension is the most common medical disorder encountered during pregnancy and is estimated to occur in about 6-8 % of pregnancies. A recent report highlighted hypertensive disorders as one of the major causes of pregnancy-related maternal deaths in the USA, accounting for 579 (12.3 %) of the 4,693 maternal deaths that occurred between 1998 and 2005. In low-income and middle-income countries, preeclampsia and its convulsive form, eclampsia, are associated with 10-15 % of direct maternal deaths. The optimal timing and choice of therapy for hypertensive pregnancy disorders involves carefully weighing the risk-versus-benefit ratio for each individual patient, with an overall goal of improving maternal and fetal outcomes. In this review, we have compared and contrasted the recommendations from different treatment guidelines and outlined some newer perspectives on management. We aim to provide a clinically oriented guide to the drug treatment of hypertension in pregnancy.
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Affiliation(s)
- Catherine M Brown
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN, 55905, USA
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25
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Magee LA, Pels A, Helewa M, Rey E, von Dadelszen P. Diagnosis, evaluation, and management of the hypertensive disorders of pregnancy. Pregnancy Hypertens 2014; 4:105-45. [PMID: 26104418 DOI: 10.1016/j.preghy.2014.01.003] [Citation(s) in RCA: 245] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 01/17/2014] [Indexed: 02/05/2023]
Abstract
OBJECTIVE This guideline summarizes the quality of the evidence to date and provides a reasonable approach to the diagnosis, evaluation and treatment of the hypertensive disorders of pregnancy (HDP). EVIDENCE The literature reviewed included the previous Society of Obstetricians and Gynaecologists of Canada (SOGC) HDP guidelines from 2008 and their reference lists, and an update from 2006. Medline, Cochrane Database of Systematic Reviews (CDSR), Cochrane Central Registry of Controlled Trials (CCRCT) and Database of Abstracts and Reviews of Effects (DARE) were searched for literature published between January 2006 and March 2012. Articles were restricted to those published in French or English. Recommendations were evaluated using the criteria of the Canadian Task Force on Preventive Health Care and GRADE.
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Affiliation(s)
| | - Anouk Pels
- Academic Medical Centre, Amsterdam, The Netherlands
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26
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Huda SS, Freeman DJ, Nelson SM. Short- and long-term strategies for the management of hypertensive disorders of pregnancy. Expert Rev Cardiovasc Ther 2014; 7:1581-94. [DOI: 10.1586/erc.09.147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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27
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[How to manage a patient with chronic arterial hypertension during pregnancy and the postpartum period]. Rev Med Interne 2013; 36:191-7. [PMID: 24075628 DOI: 10.1016/j.revmed.2013.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 08/01/2013] [Indexed: 11/22/2022]
Abstract
The management of chronic arterial hypertension during pregnancy and postpartum requires first to estimate the risk of the pregnancy, linked with the severity of hypertension, with cardiac and renal involvement, with its cause as well as with the background (obesity, diabetes, possible history of placental vascular pathology). On a very practical approach, antihypertensive drug has to be started or increased if systolic pressure reaches or exceeds 160 mmHg or if diastolic pressure reaches or exceeds 105 mmHg. Below this level, there are no evidence-based medicine data, but it seems reasonable to treat if pressure increases over 150/100 mmHg (140/90 mmHg in case of ambulatory monitoring). Excessive pressure figures control must be avoided as much as insufficient ones: in practice, it is necessary to decrease the treatment dose if figures are below 130/80 mmHg. Three antihypertensive drugs are consensually recommended today: alphametyldopa, calcium-channel blockers and labetalol. Monotherapy is most often sufficient; if needed, two of these drugs can easily be associated, and even three if necessary. Converting enzyme inhibitors and angiotensin receptor II antagonists should not be prescribed to pregnant women. Betablockers and diuretics are not recommended. Whatever is the antihypertensive drug used, it is necessary to detect the signs of bad placenta blood circulation with uterine Doppler ultrasound and regular controls of fetal growth, and to check for appearance of proteinuria, defining then over-imposed pre-eclampsia needing immediate admission to the maternity. After delivery, lacatation suppresion with bromocriptin should not be prescribed.
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Moser M, Brown CM, Rose CH, Garovic VD. Hypertension in pregnancy: is it time for a new approach to treatment? J Hypertens 2012; 30:1092-100. [PMID: 22573074 DOI: 10.1097/hjh.0b013e3283536319] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hypertensive disorders represent major causes of pregnancy-related maternal mortality worldwide. The current definition and treatment recommendations for elevated blood pressure (BP) during pregnancy in the United States have remained unchanged for many years, unlike the recommendations for hypertension treatment in the general population. Clinical studies have provided convincing evidence that women with hypertensive pregnancy disorders are at both immediate and long-term risk for cardiovascular complications; these findings suggest that consideration be given to lowering the presently recommended BP thresholds, both for the initiation of therapy and for therapeutic targets, and to simplifying the approach to the management of elevated BP in pregnancy. This review focuses on the current treatment strategies for hypertensive pregnancy disorders, new developments in the field of hypertension, in general, and in pregnant patients, in particular, and their potential impact on contemporary BP goals and the use of specific antihypertensive medications in pregnancy.
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Affiliation(s)
- Marvin Moser
- Department of Medicine/Cardiology, Yale University School of Medicine, New Haven, Connecticut, USA
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29
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Abstract
Hypertension in pregnancy is diagnosed on systolic blood pressure greater than or equal to 140 mm Hg and/or diastolic greater than or equal to 90 mm Hg. The classification systems separate chronic and gestational hypertension from preeclampsia. Significant uncertainty regarding optimal management is reflected in the differing major international society recommendations. Blood pressure treatment is designed to minimize maternal end-organ damage. Methyldopa, labetalol, hydralazine, and nifedipine are oral options; angiotensin-converting enzyme inhibitors and angiotensin receptor antagonists are contraindicated. Women with preeclampsia should be closely monitored and receive intravenous magnesium sulfate.
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30
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Kernaghan D, Duncan AC, McKay GA. Hypertension in pregnancy: a review of therapeutic options. Obstet Med 2012; 5:44-9. [PMID: 27579135 PMCID: PMC4989617 DOI: 10.1258/om.2011.110061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2011] [Indexed: 11/18/2022] Open
Abstract
Hypertensive disorders in pregnancy are common and can occur as a result of pre-existing hypertension or as new onset hypertension usually in the second half of pregnancy. In either situation there is potential for considerable perinatal and maternal morbidity and mortality. This review article aims to compare therapeutic options outlined in a selection of national guidelines and to look in more detail at the most commonly prescribed drugs - labetalol, methyldopa and nifedipine - with respect to their pharmacology and the evidence for their use in pregnancy. We will also consider the rationale for identifying and treating hypertension in pregnancy and the effect this can have on short- and long-term maternal and neonatal outcomes.
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Affiliation(s)
- D Kernaghan
- Princess Royal Maternity Hospital, 16 Alexandra Parade, Glasgow G31 2ER
| | - A C Duncan
- Princess Royal Maternity Hospital, 16 Alexandra Parade, Glasgow G31 2ER
| | - G A McKay
- Glasgow Royal Infirmary, Castle Street, Glasgow, UK
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Spezielle Arzneimitteltherapie in der Schwangerschaft. ARZNEIMITTEL IN SCHWANGERSCHAFT UND STILLZEIT 2012. [PMCID: PMC7271212 DOI: 10.1016/b978-3-437-21203-1.10002-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Hypertension is a common complication of pregnancy. Preeclampsia, in particular, is associated with substantial risk to both the mother and the fetus. Several risk factors have been recognized to predict risk for preeclampsia. However, at present no biomarkers have sufficient discriminatory ability to be useful in clinical practice, and no effective preventive strategies have yet been identified. Commonly used medications for the treatment of hypertension in pregnancy include methyldopa and labetalol. Blood pressure thresholds for initiating antihypertensive therapy are higher than outside of pregnancy. Women with prior preeclampsia are at increased risk of hypertension, cardiovascular disease, and renal disease.
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Affiliation(s)
- Caren G Solomon
- Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
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Benton SJ, Hu Y, Xie F, Kupfer K, Lee SW, Magee LA, von Dadelszen P. Angiogenic factors as diagnostic tests for preeclampsia: a performance comparison between two commercial immunoassays. Am J Obstet Gynecol 2011; 205:469.e1-8. [PMID: 21903191 DOI: 10.1016/j.ajog.2011.06.058] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 03/10/2011] [Accepted: 06/15/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Placental growth factor and soluble Fms-like tyrosine kinase-1 may be potential diagnostic markers of preeclampsia. We compared performances of 2 immunoassays, the Triage placental growth factor assay and the Elecsys soluble Fms-like tyrosine kinase-1/placental growth factor ratio in diagnosing preeclampsia. STUDY DESIGN A single site, case-control study of 44 patients with preeclampsia and 84 matched normal pregnant controls. Samples were collected at the time of diagnosis. Assays were performed according to product inserts. RESULTS Both assays had optimal performance in diagnosing early-onset preeclampsia with area under the receiver operating characteristic curves of 0.99 (Triage: 100% sensitivity, 96% specificity; Elecsys: 64% sensitivity, 100% specificity for early-onset preeclampsia). Reassignment of the Elecsys cutoff for a positive test based on receiver operating characteristic curves increased sensitivity to 92%. CONCLUSION Using product insert cutoffs, Triage appears to have greater sensitivity at only a small reduction in specificity compared with Elecsys in the diagnosis of early-onset preeclampsia. A different cutoff may improve Elecsys sensitivity.
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Ganzevoort W, Sibai BM. Temporising versus interventionist management (preterm and at term). Best Pract Res Clin Obstet Gynaecol 2011; 25:463-76. [DOI: 10.1016/j.bpobgyn.2011.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Accepted: 01/13/2011] [Indexed: 10/18/2022]
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35
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Payne B, Magee LA, von Dadelszen P. Assessment, surveillance and prognosis in pre-eclampsia. Best Pract Res Clin Obstet Gynaecol 2011; 25:449-62. [DOI: 10.1016/j.bpobgyn.2011.02.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 01/25/2011] [Accepted: 02/04/2011] [Indexed: 01/16/2023]
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36
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Arterial hypertension in pregnancy: Experience from outpatient clinic for cardiovascular diseases in pregnancy. COR ET VASA 2011. [DOI: 10.33678/cor.2011.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nabhan AF, Elsedawy MM. Tight control of mild-moderate pre-existing or non-proteinuric gestational hypertension. Cochrane Database Syst Rev 2011:CD006907. [PMID: 21735406 DOI: 10.1002/14651858.cd006907.pub2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND The question of the target blood pressure in pregnant women with mild-moderate hypertension continues to be an area of debate. OBJECTIVES To compare tight versus very tight control of mild-moderate pre-existing or non-proteinuric gestational hypertension for improving outcomes SEARCH STRATEGY We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (31 March 2011), CENTRAL (The Cochrane Library 2011, Issue 3), MEDLINE (January 1966 to March 2011), and the metaRegister of Controlled Trials (31 March 2011). We handsearched citation lists of relevant publications, review articles, and included studies. SELECTION CRITERIA Randomized controlled trials of tight versus very tight control in pregnant women with mild or moderate pre-existing or non-proteinuric gestational hypertension. DATA COLLECTION AND ANALYSIS Two authors independently assessed trial quality and extracted data. We expressed results as risk ratio (RR) or mean differences, together with their 95% confidence intervals (CI). MAIN RESULTS We included two studies (256 participants) with mild-moderate pre-existing or non-proteinuric gestational hypertension. There was no evidence of a difference between tight and very tight control groups regarding severe pre-eclampsia (risk ratio (RR) 1.28, 95% CI 0.97 to 1.70; two trials, 256 participants). More women in the tight group were hospitalized during their pregnancy (RR 2.53, 95% CI 1.14 to 5.63; one trial, 125 participants). There was no evidence of a difference in other outcome measures including fetal distress, IUGR, neonatal admission to a NICU, perinatal deaths, induction of labor and cesarean delivery between the tight and the very tight control groups. Gestational age at delivery had a non-significant mean difference (MD) of -0.15 weeks between the tight and very tight control groups (MD -0.15, 95% CI -1.52 to 1.21, random-effects, T² = 0.75, I² = 77%; two trials, 256 participants). The MD in birthweight between the tight and the very tight control group was not significant (MD -100.00 grams, 95% CI -363.69 to 163.69; one trial, 125 participants). AUTHORS' CONCLUSIONS For pregnant women with non-severe pre-existing or non-proteinuric gestational hypertension, there is insufficient evidence to determine how tight control of hypertension should be achieved to improve maternal and fetal-neonatal outcomes.
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Affiliation(s)
- Ashraf F Nabhan
- Department of Obstetrics and Gynecology, Ain Shams University, 16 Ali Fahmi Kamel Street, Heliopolis, Cairo, Egypt, 11351
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Magee LA, Lowe S, Douglas MJ, Kathirgamanathan A. Therapeutics and anaesthesia. Best Pract Res Clin Obstet Gynaecol 2011; 25:477-90. [PMID: 21478058 DOI: 10.1016/j.bpobgyn.2011.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Accepted: 01/31/2011] [Indexed: 10/18/2022]
Abstract
Many aspects of hypertension care outside pregnancy may be applied in pregnancy, but little information is available on which to base decision-making. It would seem reasonable to continue previous dietary salt restriction and physical activity in women with pre-existing (and controlled) hypertension, encourage a heart-healthy diet in all women with a hypertension disorder of pregnancy, and take patient preference into account when deciding on place of care. Although bed rest has become a key part of obstetric practice and for care of women with a hypertension disorder of pregnancy, in particular, the evidence is lacking to support this practice. This may also increase thromboembolic risk. Antihypertensive treatment is strongly advised for women with severe hypertension. The most common agents are parenteral labetalol, hydralazine, or oral nifedipine capsules. Clinicians should familiarise themselves with multiple agents. Until the role of antihypertensive treatment for non-severe hypertension in pregnancy is clarified by ongoing research, clinicians should explicitly state an individual patient's blood pressure goal, which could reasonably be anywhere between 130/80 and 155/105 mmHg. Labetalol and methyldopa are used most commonly. Breastfeeding should be encouraged. Many risk factors for hypertension (e.g. obesity), as well as hospitalisation and pre-eclampsia, all increase the thromboembolic risk for pregnant women, and care providers should consider thromboprophylaxis in the appropriate setting. Finally, anaesthetists play a critical role in the management of women with a hypertension disorder of pregnancy, and should be involved earlier rather than later in the course of their care.
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Affiliation(s)
- Laura A Magee
- Department of Medicine, University of British Columbia, Vancouver, Canada.
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Moffatt FW, Hodnett E, Esplen MJ, Watt-Watson J. Effects of guided imagery on blood pressure in pregnant women with hypertension: a pilot randomized controlled trial. Birth 2010; 37:296-306. [PMID: 21083721 DOI: 10.1111/j.1523-536x.2010.00424.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Hypertension occurs in nearly 10 percent of pregnancies, and is associated with higher risk of infant and maternal morbidity and mortality than in normal pregnancies. Previous studies have suggested that relaxation therapies reduce blood pressure in nonpregnant adults. The objectives of this pilot randomized trial were to provide preliminary evidence of whether relaxation by means of guided imagery would reduce blood pressure in hypertensive pregnant women, and to assess the feasibility of a larger trial. METHODS A total of 69 pregnant women with hypertension were randomized to periods of guided imagery or of quiet rest, twice daily for 4 weeks or until delivery, whichever came first. Daytime ambulatory mean arterial pressure, systolic and diastolic blood pressure, and anxiety were measured weekly for up to 4 weeks. RESULTS Women allocated to guided imagery had lower mean arterial pressure elevations over time than those allocated to quiet rest (guided imagery: M = 1.58 mmHg, SD = 7.63; quiet rest: M = 5.93 mmHg, SD = 6.55; t = 2.36, p = 0.02). However, when adjusted for baseline mean arterial pressure and gestation, the effect was not significant (p = 0.14). Numbers of women prescribed antihypertensive medication postrandomization were similar (guided imagery: n = 16; quiet rest: n = 13, χ(2) = 0.74, p = 0.46). There was also no evidence of an effect on women's anxiety. Nearly 90 percent (n = 26) of the guided imagery group indicated that they would use it again. CONCLUSIONS Further rigorous study is warranted to determine effects of guided imagery on maternal blood pressure and perinatal health outcomes.
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Preexisting hypertension in pregnancy. Hypertens Pregnancy 2010. [DOI: 10.1017/cbo9780511902529.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Magee LA, Abalos E, von Dadelszen P, Sibai B, Walkinshaw SA. Control of hypertension in pregnancy. Curr Hypertens Rep 2010; 11:429-36. [PMID: 19895754 DOI: 10.1007/s11906-009-0073-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The hypertensive disorders of pregnancy are a leading cause of maternal mortality and morbidity. Complications are not limited to preeclampsia but also complicate both preexisting hypertension and isolated gestational hypertension. Blood pressure (BP) management is important but is only one aspect of management of the hypertensive disorders of pregnancy, which may be caused or exacerbated by underlying uteroplacental mismatch between maternal supply and fetal demand. BP treatment thresholds and goals vary in international guidelines, largely reflecting differences in opinion rather than differences in published data. Because of short-term maternal risks, there is consensus that BP should be treated when sustained at greater than or equal to 160 to 170 mm Hg systolic and/or 110 mm Hg diastolic. There is no consensus regarding management of nonsevere hypertension, and randomized controlled trials involving just over 3000 women have not clarified the relative maternal and perinatal risks and benefits. Although antihypertensive therapy may decrease transient severe maternal hypertension, therapy may also impair fetal growth and perinatal health and outcomes. The CHIPS Trial (Control of Hypertension In Pregnancy Study) is recruiting to answer this question.
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Affiliation(s)
- Laura A Magee
- BC Women's Hospital and Health Centre and the Child and Family Research Institute, University of British Columbia, 4500 Oak Street, Room D213, Vancouver, BC V6H 3N1, Canada.
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Magee LA, Ramsay G, von Dadelszen P. What is the Role of Out-of-Office BP Measurement in Hypertensive Pregnancy? Hypertens Pregnancy 2009; 27:95-101. [DOI: 10.1080/10641950801950197] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Magee LA, von Dadelszen P, Chan S, Gafni A, Gruslin A, Helewa M, Hewson S, Kavuma E, Lee SK, Logan AG, McKay D, Moutquin JM, Ohlsson A, Rey E, Ross S, Singer J, Willan AR, Hannah ME. Women's Views of Their Experiences in the CHIPS (Control of Hypertension in Pregnancy Study) Pilot Trial. Hypertens Pregnancy 2009; 26:371-87. [DOI: 10.1080/10641950701547549] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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von Dadelszen P, Menzies JM, Payne B, Magee LA. Predicting adverse outcomes in women with severe pre-eclampsia. Semin Perinatol 2009; 33:152-7. [PMID: 19464505 DOI: 10.1053/j.semperi.2009.02.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The reason pre-eclampsia matters so much to maternity care providers is that adverse maternal and perinatal events cluster around the diagnosis of proteinuric gestational hypertension. While that is true, most pre-eclampsia is mild and evanescent, resolving rapidly postpartum. Therefore, every effort must be made to identify those women at greatest personal risk, and those bearing fetuses at greatest risk, so that they can be offered closer surveillance and lower thresholds for the use of effective interventions, such as delivery and the use of MgSO(4). Conversely, as delivery remote from term can increase perinatal risks and as liberal MgSO(4) use is associated with maternal morbidity, it may be as important to identify those women who have "mild" disease and bear little personal and/or fetal actuarial risk. For women with "mild" disease at presentation, expectant management remote from term or nonuse of MgSO(4) would be appropriate. Through the PIERS (Pre-eclampsia Integrated Estimate of RiSk) model research program, we have determined that most criteria for "severe" disease perform poorly when operationalized to predict adverse maternal and/or perinatal outcomes. However, with standardized assessment and surveillance of women with suspected and confirmed pre-eclampsia it is possible to lower maternal risks both within individual institutions and across regions. In addition, the PIERS group developed, and is currently validating, 2 outcome prediction models (full-PIERS and mini-PIERS) that we hope will provide an evidence base for the definition of "severe" disease and guide clinical decision-making, especially remote from term when potential perinatal gains are so great.
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Affiliation(s)
- Peter von Dadelszen
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.
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El Guindy AA, Nabhan AF. A randomized trial of tight vs. less tight control of mild essential and gestational hypertension in pregnancy. J Perinat Med 2009; 36:413-8. [PMID: 18605968 DOI: 10.1515/jpm.2008.060] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To assess the effects of applying a tight vs. a less tight control of mild chronic essential or gestational non-proteinuric hypertension in pregnancy. METHODS A randomized trial was conducted in 2006-2007 in the University of Ain Shams, Egypt. Eligible participants (n=125) were randomly assigned to either tight or less tight control of mild chronic (essential) or gestational (non-proteinuric) hypertension. The primary outcome measure was the development of severe hypertension during follow-up. Analysis was by intention-to-treat. RESULTS In the tight target group, adjustment of the dose with an increment of 191 mg yielded a mean dose of methyldopa of 1267+/-406 mg. Both systolic and diastolic BP levels were significantly less than in the tight target group. More women in the less tight group had severe hypertension during follow up (RR 3.167 and 95% CI 1.36-7.37). The rate of antenatal hospitalization was significantly higher in the less tight target group with a relative risk of 2.57 and 95% CI 1.16-5.70. The gestational age at delivery was significantly better in the tight target group. Preterm delivery and birth weight were not significantly different between the study groups. CONCLUSION Tight control of blood pressure reduces the rate of antenatal hospitalization and does not adversely affect perinatal outcomes in women with mild essential or gestational hypertension.
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Affiliation(s)
- Alaa A El Guindy
- Department of Obstetrics and Gynecology, University of Ain Shams, Egypt
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Seasonal trends of blood pressure during pregnancy in Japan: the Babies and their Parents' Longitudinal Observation in Suzuki Memorial Hospital in Intrauterine Period study. J Hypertens 2008; 26:2406-13. [DOI: 10.1097/hjh.0b013e32831364a7] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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What matters in preeclampsia are the associated adverse outcomes: the view from Canada. Curr Opin Obstet Gynecol 2008; 20:110-5. [PMID: 18388808 DOI: 10.1097/gco.0b013e3282f733a2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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