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Slade LJ, Syngelaki A, Wilson M, Mistry HD, Akolekar R, von Dadelszen P, Nicolaides KH, Magee LA. Blood pressure cutoffs at 11-13 weeks of gestation and risk of preeclampsia. Am J Obstet Gynecol 2024:S0002-9378(24)00558-1. [PMID: 38697334 DOI: 10.1016/j.ajog.2024.04.032] [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: 11/17/2023] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND A parallel has been drawn between first-trimester placental vascular maturation and maternal cardiovascular adaptations, including blood pressure. Although 140/90 mm Hg is well-accepted as the threshold for chronic hypertension in the general obstetric population in early pregnancy, a different threshold could apply to stratify the risk of adverse outcomes, such as preeclampsia. This could have implications for interventions, such as the threshold for initiation of antihypertensive therapy and the target blood pressure level. OBJECTIVE We evaluated the relationship between various blood pressure cutoffs at 11-13 weeks of gestation and the development of preeclampsia, overall and according to key maternal characteristics. STUDY DESIGN This secondary analysis was of data from a prospective nonintervention cohort study of singleton pregnancies delivering at ≥24 weeks, without major anomalies, at 2 United Kingdom maternity hospitals, 2006-2020. Blood pressure at 11-13 weeks of gestation was classified according to American College of Cardiology/American Heart Association categories (mm Hg) as (1) normal blood pressure (systolic <120 and diastolic <80), (2) elevated blood pressure (systolic ≥120 and diastolic <80), stage 1 hypertension (systolic ≥130 or diastolic 80-89), and stage 2 hypertension (systolic ≥140 or diastolic ≥90). For blood pressure category thresholds and the outcome of preeclampsia, the following were calculated overall and across maternal age, body mass index, ethnicity, method of conception, and previous pregnancy history: detection rate, screen-positive rate, and positive and negative likelihood ratios, with 95% confidence intervals. A P value of <.05 was considered significant. RESULTS There were 137,458 pregnancies screened at 11-13 weeks of gestation. The population was ethnically diverse, with 15.9% of Black ethnicity, 6.7% of South or East Asian ethnicity, and 2.7% of mixed ethnicity, with the remainder of White ethnicity. Compared with normal blood pressure, stage 2 hypertension was associated with both preterm preeclampsia (0.3% to 4.9%) and term preeclampsia (1.0% to 8.3%). A blood pressure threshold of 140/90 mm Hg was good at identifying women at increased risk of preeclampsia overall (positive likelihood ratio, 5.61 [95% confidence interval, 5.14-6.11]) and across maternal characteristics, compared with elevated blood pressure (positive likelihood ratio, 1.70 [95% confidence interval, 1.63-1.77]) and stage 1 hypertension (positive likelihood ratio, 2.68 [95% confidence interval, 2.58-2.77]). There were 2 exceptions: a blood pressure threshold of 130/80 mm Hg was better for the 2.1% of women with body mass index <18.5 kg/m2 (positive likelihood ratio, 5.13 [95% confidence interval, 3.22-8.16]), and a threshold of 135/85 mm Hg better for the 50.4% of parous women without a history of preeclampsia (positive likelihood ratio, 5.24, [95% confidence interval, 4.77-5.77]). There was no blood pressure threshold below which reassurance could be provided against the development of preeclampsia (all-negative likelihood ratios ≥0.20). CONCLUSION The traditional blood pressure threshold of 140/90 mm Hg performs well to identify women at increased risk of preeclampsia. Women who are underweight or parous with no prior history of preeclampsia may be better identified by lower thresholds; however, a randomized trial would be necessary to determine any benefits of such an approach if antihypertensive therapy were also administered at this threshold. No blood pressure threshold is reassured against the development of preeclampsia, regardless of maternal characteristics.
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Affiliation(s)
- Laura J Slade
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia; Department of Obstetrics and Gynaecology, Women's and Children's Hospital, Adelaide, South Australia, Australia
| | - Argyro Syngelaki
- Fetal Medicine Research Institute, King's College Hospital, London, United Kingdom
| | - Milly Wilson
- Department of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, United Kingdom
| | - Hiten D Mistry
- Department of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, United Kingdom
| | - Ranjit Akolekar
- Fetal Medicine Unit, Medway Maritime Hospital, Gillingham, United Kingdom; Institute of Medical Sciences, Canterbury Christ Church University, Chatham, United Kingdom
| | - Peter von Dadelszen
- Fetal Medicine Research Institute, King's College Hospital, London, United Kingdom
| | - Kypros H Nicolaides
- Fetal Medicine Research Institute, King's College Hospital, London, United Kingdom
| | - Laura A Magee
- Department of Women and Children's Health, School of Life Course and Population Sciences, King's College London, London, United Kingdom.
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Gosse P, Sentilhes L, Boulestreau R, Doublet J, Gaudissard J, Azizi M, Cremer A. Endovascular ultrasound renal denervation to lower blood pressure in young hypertensive women planning pregnancy: study protocol for a multicentre randomised, blinded and sham controlled proof of concept study. BMJ Open 2023; 13:e071164. [PMID: 37775290 PMCID: PMC10546167 DOI: 10.1136/bmjopen-2022-071164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 09/08/2023] [Indexed: 10/01/2023] Open
Abstract
INTRODUCTION A major issue confronting clinicians treating hypertension in pregnancy is the limited number of pharmacological options. Endovascular catheter-based renal denervation (RDN) is a new method to lower blood pressure (BP) in patients with hypertension by reducing the activity of the renal sympathetic nervous system. Drugs that affect this system are safe in pregnant women. So there is reasonable evidence that RDN performed before pregnancy should not have deleterious effects for the fetus. Because the efficacy of RDN may be greater in younger patients and in women, we may expect a larger proportion of BP normalisation in young hypertensive women, but this remains to be proven. Our primary objective is to quantify the proportion of BP normalisation with RDN in this population. METHODS AND ANALYSIS WHY-RDN is a multicentre randomised sham-controlled trial conducted in six French hypertension centres that will include 80 women with essential hypertension treated or untreated, who are planning a pregnancy in the next 2 years and will be randomly assigned to RDN or classic renal arteriography and sham RDN in a ratio of 1:1. The primary outcome is the normalisation of 24-hour BP (<130/80 mm Hg) at 2-month post procedure off treatment. Sample size is calculated with the following assumptions: 5% one-sided significance level (α), 80% power (1-β), expected responder rates of 24% and 3% in the treatment and control group, respectively. Secondary outcomes include the absence of adverse outcomes for a future pregnancy, the variations of BP in ambulatory and home BP measurements and the evaluation of treatment prescribed. ETHICS AND DISSEMINATION WHY-RDN has been approved by the French Ethics Committee (Tours, Region Centre, Ouest 1- number 2021T1-28 HPS). This project is being carried out in accordance with national and international guidelines. The findings of this study will be disseminated by publication. TRIAL REGISTRATION NUMBER ClinicalTrials.gov, NCT05563337.
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Affiliation(s)
- Philippe Gosse
- Department of Cardiology/Hypertension, University Hospital Centre Bordeaux, Bordeaux, France
| | - Loïc Sentilhes
- University Hospital Centre Bordeaux, Bordeaux, France
- University of Bordeaux, Bordeaux, France
| | - Romain Boulestreau
- Cardiologie/Hypertension arterielle, University Hospital Centre Bordeaux, Bordeaux, France
| | - Julien Doublet
- Cardiologie/Hypertension arterielle, University Hospital Centre Bordeaux, Bordeaux, France
| | - Julie Gaudissard
- Cardiologie/Hypertension arterielle, University Hospital Centre Bordeaux, Bordeaux, France
| | - Michel Azizi
- Department of Hypertension, Hopital Europeen Georges Pompidou, Paris, France
| | - Antoine Cremer
- Cardiologie/Hypertension arterielle, University Hospital Centre Bordeaux, Bordeaux, France
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Louis JM, Parchem J, Vaught A, Tesfalul M, Kendle A, Tsigas E. Preeclampsia: a report and recommendations of the workshop of the Society for Maternal-Fetal Medicine and the Preeclampsia Foundation. Am J Obstet Gynecol 2022. [DOI: 10.1016/j.ajog.2022.06.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Affiliation(s)
- Laura A Magee
- From the Department of Women and Children's Health, School of Life Course Sciences, King's College London (L.A.M., K.H.N., P.D.), the Institute of Women and Children's Health, King's Health Partners Academic Health Science Centre (L.A.M., P.D.), and the Harris Birthright Research Centre for Fetal Medicine, King's College Hospital (K.H.N.) - all in London
| | - Kypros H Nicolaides
- From the Department of Women and Children's Health, School of Life Course Sciences, King's College London (L.A.M., K.H.N., P.D.), the Institute of Women and Children's Health, King's Health Partners Academic Health Science Centre (L.A.M., P.D.), and the Harris Birthright Research Centre for Fetal Medicine, King's College Hospital (K.H.N.) - all in London
| | - Peter von Dadelszen
- From the Department of Women and Children's Health, School of Life Course Sciences, King's College London (L.A.M., K.H.N., P.D.), the Institute of Women and Children's Health, King's Health Partners Academic Health Science Centre (L.A.M., P.D.), and the Harris Birthright Research Centre for Fetal Medicine, King's College Hospital (K.H.N.) - all in London
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Vestgaard M, Al-Saudi E, Ásbjörnsdóttir B, Nørgaard LN, Pedersen BW, Ekelund CK, Ringholm L, Andersen LLT, Jensen DM, Tabor A, Damm P, Mathiesen ER. The impact of anti-hypertensive treatment on foetal growth and haemodynamics in pregnant women with pre-existing diabetes - An explorative study. Diabet Med 2022; 39:e14722. [PMID: 34653280 DOI: 10.1111/dme.14722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 10/13/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To explore the impact of anti-hypertensive treatment of pregnancy-induced hypertension on foetal growth and hemodynamics in women with pre-existing diabetes. METHODS A prospective cohort study of 247 consecutive pregnant women with pre-existing diabetes (152 type 1 diabetes; 95 type 2 diabetes), where tight anti-hypertensive treatment was initiated and intensified (mainly with methyldopa) when office blood pressure (BP) ≥135/85 mmHg and home BP ≥130/80 mmHg. Foetal growth was assessed by ultrasound at 27, 33 and 36 weeks and foetal hemodynamics were assessed by ultrasound Doppler before and 1-2 weeks after initiation of anti-hypertensive treatment. RESULTS In 215 initially normotensive women, anti-hypertensive treatment for pregnancy-induced hypertensive disorders was initiated in 42 (20%), whilst 173 were left untreated. Chronic hypertension was present in 32 (13%). Anti-hypertensive treatment for pregnancy-induced hypertensive disorders was not associated with foetal growth deviation (linear mixed model, p = 0.681). At 27 weeks, mainly before initiation of anti-hypertensive treatment, the prevalence of small foetuses with an estimated foetal weight <10th percentile was 12% in women initiating anti-hypertensive treatment compared with 4% in untreated women (p = 0.054). These numbers were close to the prevalence of birth weight ≤10th percentile (small for gestational age (SGA)) (17% vs. 4%, p = 0.003). Pulsatility index in the umbilical and middle cerebral artery remained stable after the onset of anti-hypertensive treatment in a representative subgroup (n = 12, p = 0.941 and p = 0.799, respectively). CONCLUSION There is no clear indication that antihypertensive treatment causes harm in this particular at-high-risk group of pregnant women with diabetes, such that a larger well-designed study to determine the value of tight antihypertensive control would be worthwhile.
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Affiliation(s)
- Marianne Vestgaard
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Elaf Al-Saudi
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Björg Ásbjörnsdóttir
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lone N Nørgaard
- Department of Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Lene Ringholm
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | - Dorte M Jensen
- Department of Obstetrics, Odense University Hospital, Odense, Denmark
- Steno Diabetes Center, Odense University Hospital, Odense, Denmark
| | - Ann Tabor
- Department of Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Peter Damm
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Elisabeth R Mathiesen
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/15/2021] [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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7
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Magee LA, Brown MA, Hall DR, Gupte S, Hennessy A, Karumanchi SA, Kenny LC, McCarthy F, Myers J, Poon LC, Rana S, Saito S, Staff AC, Tsigas E, von Dadelszen P. The 2021 International Society for the Study of Hypertension in Pregnancy classification, diagnosis & management recommendations for international practice. Pregnancy Hypertens 2022; 27:148-169. [DOI: 10.1016/j.preghy.2021.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 12/13/2022]
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Magee LA, Khalil A, Kametas N, von Dadelszen P. 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] [MESH Headings] [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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Affiliation(s)
- Laura A Magee
- Department of Women and Children's Health, King's College London, London, United Kingdom.
| | - Asma Khalil
- Department of Obstetrics and Gynecology, St. George's, University of London, London, United Kingdom
| | - Nikos Kametas
- Harris Birthright Centre, King's College Hospital, London, United Kingdom
| | - Peter von Dadelszen
- Department of Women and Children's Health, King's College London, London, United Kingdom
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Ardissino M, Slob EA, Millar O, Reddy RK, Lazzari L, Patel KHK, Ryan D, Johnson MR, Gill D, Ng FS. Maternal Hypertension Increases Risk of Preeclampsia and Low Fetal Birthweight: Genetic Evidence From a Mendelian Randomization Study. Hypertension 2022; 79:588-598. [DOI: 10.1161/hypertensionaha.121.18617] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Maternal cardiovascular risk factors have been associated with adverse maternal and fetal outcomes. Given the difficulty in establishing causal relationships using epidemiological data, we applied Mendelian randomization to explore the role of cardiovascular risk factors on risk of developing preeclampsia or eclampsia, and low fetal birthweight.
Methods:
Uncorrelated single-nucleotide polymorphisms associated systolic blood pressure (SBP), body mass index, type 2 diabetes, LDL (low-density lipoprotein) with cholesterol, smoking, urinary albumin-to-creatinine ratio, and estimated glomerular filtration rate at genome-wide significance in studies of 298 957 to 1 201 909 European ancestry participants were selected as instrumental variables. A 2-sample Mendelian randomization study was performed with primary outcome of preeclampsia or eclampsia (PET). Risk factors associated with PET were further investigated for their association with low birthweight.
Results:
Higher genetically predicted SBP was associated increased risk of PET (odds ratio [OR] per 1-SD SBP increase 1.90 [95% CI=1.45–2.49];
P
=3.23×10
−6
) and reduced birthweight (OR=0.83 [95% CI=0.79–0.86];
P
=3.96×10
−18
), and this was not mediated by PET. Body mass index and type 2 diabetes were also associated with PET (respectively, OR per 1-SD body mass index increase =1.67 [95% CI=1.44–1.94];
P
=7.45×10
−12
; and OR per logOR increase type 2 diabetes =1.11 [95% CI=1.04–1.19];
P
=1.19×10
−3
), but not with reduced birthweight.
Conclusions:
Our results provide evidence for causal effects of SBP, body mass index, and type 2 diabetes on PET and identify that SBP is associated with reduced birthweight independently of PET. The results provide insight into the pathophysiological basis of PET and identify hypertension as a potentially modifiable risk factor amenable to therapeutic intervention.
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Affiliation(s)
- Maddalena Ardissino
- National Heart and Lung Institute (M.A., O.M., R.K.R., L.L., K.H.K.P., F.S.N.)
- Imperial College London, United Kingdom. Nuffield Department of Population Health, University of Oxford, United Kingdom (M.A.)
| | - Eric A.W. Slob
- MRC Biostatistics Unit, University of Cambridge, United Kingdom (E.A.W.S.)
| | - Ophelia Millar
- National Heart and Lung Institute (M.A., O.M., R.K.R., L.L., K.H.K.P., F.S.N.)
| | - Rohin K. Reddy
- National Heart and Lung Institute (M.A., O.M., R.K.R., L.L., K.H.K.P., F.S.N.)
| | - Laura Lazzari
- National Heart and Lung Institute (M.A., O.M., R.K.R., L.L., K.H.K.P., F.S.N.)
| | | | - David Ryan
- St George’s University Hospitals NHS Foundation Trust, London, United Kingdom (D.R., D.G.)
| | - Mark R. Johnson
- Division of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction (M.R.J.)
| | - Dipender Gill
- Department of Biostatistics and Epidemiology, School of Public Health (D.G.)
- St George’s University Hospitals NHS Foundation Trust, London, United Kingdom (D.R., D.G.)
| | - Fu Siong Ng
- National Heart and Lung Institute (M.A., O.M., R.K.R., L.L., K.H.K.P., F.S.N.)
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Pregnancy and delivery in women receiving maintenance hemodialysis in Japan: analysis of potential risk factors for neonatal and maternal complications. J Nephrol 2021; 34:1599-1609. [PMID: 34591251 PMCID: PMC8494660 DOI: 10.1007/s40620-021-01146-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 08/16/2021] [Indexed: 11/18/2022]
Abstract
Introduction Average dialysis vintage in Japan is among the longest in the world, providing a unique opportunity to characterize pregnancy under conditions of long dialysis vintage. In 2017, we carried out a nationwide survey following up on a similar survey in 1996, in which we investigated the prevalence and outcomes of pregnancy in women undergoing dialysis and assessed risk factors associated with neonatal and maternal complications. Methods The target population was women aged 15–44 years undergoing maintenance dialysis between 2012 and 2016. The survey was conducted in 2693 dialysis units. Results A response was obtained from 951 dialysis units, yielding a target population of 1992 women of childbearing age receiving hemodialysis or peritoneal dialysis. Pregnancy occurred only among women receiving hemodialysis, with 25 pregnancies (1.26% in 5 years) being reported for 20 women. Detailed information about 19 pregnancies (mean age 34.6 ± 5.7 years at conception, mean dialysis vintage 8.4 ± 7.3 years) indicated 4 spontaneous abortions, 1 elective abortion, no neonatal deaths, and 14 surviving infants, including 5 full-term (≥ 37 weeks at birth), 2 late preterm (34–36), and 3 extremely preterm (< 28) cases. Neonatal complications occurred in the offspring of 3 mothers who had end-stage renal disease (ESRD) caused by primary glomerulonephritis and serum albumin levels (sAlb) ≤ 3.2 mg/dL in the first trimester. These mothers had started dialysis at 12, 17, and 30 years of age. ESRD caused by diabetic nephropathy or primary glomerulonephritis, age at conception ≥ 38 years, and sAlb ≤ 3.2 mg/dL were associated with maternal complications, although not significantly. Conclusions In this study, the pregnancy rate of Japanese women with ESRD was 0.25% per year. The study generates the hypothesis that ESRD caused by diabetic nephropathy and age at conception ≥ 38 years are potential risk factors for maternal complications but not for neonatal complications in dialysis patients, and that hypoalbuminemia is a potential risk factor for both kinds of complications. Graphic Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1007/s40620-021-01146-3.
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Darwin KC, Federspiel JJ, Schuh BL, Baschat AA, Vaught AJ. ACC-AHA Diagnostic Criteria for Hypertension in Pregnancy Identifies Patients at Intermediate Risk of Adverse Outcomes. Am J Perinatol 2021; 38:e249-e255. [PMID: 32446257 PMCID: PMC8923636 DOI: 10.1055/s-0040-1709465] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE The aim of the study is to compare maternal and neonatal outcomes among patients who are normotensive, hypertensive by Stage I American College of Cardiology-American Heart Association (ACC-AHA) criteria, and hypertensive by American College of Obstetricians and Gynecologists (ACOG) criteria. STUDY DESIGN Secondary analysis of a prospective first trimester cohort study between 2007 and 2010 at three institutions in Baltimore, MD, was conducted. Blood pressure at 11 to 14 weeks' gestation was classified as (1) normotensive (systolic blood pressure [SBP] <130 mm Hg and diastolic blood pressure [DBP] <80 mm Hg); (2) hypertensive by Stage I ACC-AHA criteria (SBP 130-139 mm Hg or DBP 80-89 mm Hg); or (3) hypertensive by ACOG criteria (SBP ≥140 mm Hg or DBP ≥90 mm Hg). Primary outcomes included preeclampsia, small for gestational age (SGA) neonate, and preterm birth. RESULTS Among 3,422 women enrolled, 2,976 with delivery data from singleton pregnancies of nonanomalous fetuses were included. In total, 20.2% met hypertension criteria (Stage I ACC-AHA n = 254, 8.5%; ACOG n = 347, 11.7%). The Stage I ACC-AHA group's risk for developing preeclampsia was threefold higher than the normotensive group (adjusted relative risk [aRR] 3.70, 95% confidence interval [CI] 2.40-5.70). The Stage I ACC-AHA group had lower preeclampsia risk than the ACOG group but the difference was not significant (aRR 0.87, 95% CI 0.55-1.37). The Stage I ACC-AHA group was more likely than the normotensive group to deliver preterm (aRR 1.44, 95% CI 1.02-2.01) and deliver an SGA neonate (aRR 1.51, 95% CI 1.07-2.12). The Stage I ACC-AHA group was less likely to deliver preterm compared with the ACOG group (aRR 0.65, 95% CI 0.45-0.93), but differences in SGA were not significant (aRR 1.31, 95% CI 0.84-2.03). CONCLUSION Pregnant patients with Stage I ACC-AHA hypertension in the first trimester had higher rates of preeclampsia, preterm birth, and SGA neonates compared with normotensive women. Adverse maternal and neonatal outcomes were numerically lower in the Stage I ACC-AHA group compared with the ACOG group, but these comparisons only reached statistical significance for preterm birth. Optimal pregnancy management for first trimester Stage I ACC-AHA hypertension requires active study. KEY POINTS · Women with first trimester American College of Cardiology-American Heart Association (ACC-AHA) Stage I hypertension were more likely to develop preeclampsia, deliver preterm, and deliver a small-for-gestational age neonate than normotensive women.. · Women with first trimester American College of Obstetricians and Gynecologists (ACOG) hypertension (consistent with stage II ACC-AHA hypertension) had the highest numeric rate of adverse outcomes; however, compared with Stage I ACC-AHA hypertension, there was only statistically significant difference for preterm delivery.. · The risk profile for pregnant women with Stage I ACC-AHA hypertension and women with hypertension by conventional ACOG criteria may be more similar than previously understood..
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Affiliation(s)
- Kristin C. Darwin
- Department of Gynecology and Obstetrics, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jerome J. Federspiel
- Department of Gynecology and Obstetrics, The Johns Hopkins University School of Medicine, Baltimore, Maryland,Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina
| | - Brittany L. Schuh
- Department of Gynecology and Obstetrics, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ahmet A. Baschat
- Department of Gynecology and Obstetrics, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Arthur J. Vaught
- Department of Gynecology and Obstetrics, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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Zhang L, Sun L, Wei T. Correlation between MTHFR gene polymorphism and homocysteine levels for prognosis in patients with pregnancy-induced hypertension. Am J Transl Res 2021; 13:8253-8261. [PMID: 34377314 PMCID: PMC8340186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 03/28/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE This research was designed to probe into the correlation between MTHFR gene polymorphisms and homocysteine levels in regard to the prognosis of pregnancy-induced hypertension. METHODS A total of 180 patients with pregnancy-induced hypertension who were admitted in the gynecology and obstetrics department of our hospital were collected as the observation group, and 180 normal pregnant women were selected as the control group. The homocysteine (Hcy) level, polymorphism expression of methylenetetrahydrofolate reductase (MTHFR) gene C677T locus and A1298C locus and the correlation between the different gene loci, Hcy level and pregnancy outcome were observed. RESULTS The Hcy level in the observation group was 18.1±6.2 (100 mmol/L) which was higher than that in the control group (8.6±3.9 mmol/L) (P<0.001). The C677T polymorphism of the MTHFR gene, and the proportion of CC in the observation group was lower than that in the control group, while that of CT and TT in the observation group was significantly higher (P<0.001). The T allele in the observation group was higher than that in the control group, while the C allele was lower than that in the control group (P<0.001). Hcy of TT type in pregnancy-induced hypertension group was higher than that in CC and CT groups (P<0.05). The incidence of adverse pregnancy outcomes in pregnancy-induced hypertension patients was obviously higher than that in normal control group (P<0.01). The incidence of TT type adverse pregnancy outcomes in MTHFR gene C677T polymorphism in patients with gestational hypertension was significantly higher than that in CC and TC groups (P<0.01). CONCLUSION The Hcy level in pregnancy-induced hypertension patients and the proportion of CT and TT in the MTHFR gene C677T locus rose; having the TT-type increased the incidence of abnormal pregnancy, which may be related to the increase of Hcy level.
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Affiliation(s)
- Linjing Zhang
- Department of Obstetrics and Gynecology, Hainan Province Women and Children Medical CenterHaikou, Hainan Province, China
| | - Lili Sun
- Department of Obstetrics and Gynecology, Hainan Province Women and Children Medical CenterHaikou, Hainan Province, China
| | - Tao Wei
- Library, Kunming Medical UniversityKunming, Yunnan Province, China
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von Dadelszen P, Vidler M, Tsigas E, Magee LA. Management of Preeclampsia in Low- and Middle-Income Countries: Lessons to Date, and Questions Arising, from the PRE-EMPT and Related Initiatives. MATERNAL-FETAL MEDICINE 2021. [DOI: 10.1097/fm9.0000000000000096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Abstract
The prevalence of diabetes in reproductive age women has been reported to be as high as 6.8%, with pregestational diabetes affecting 2% of all pregnancies. As cases of diabetes in children and adolescents rise, more patients will be entering reproductive age and pregnancy with diagnoses of obesity, prediabetes, type 2 diabetes. Early interventions of diet modification and exercise to maintain healthy weights can delay or even prevent these complications. It is critical for health care providers to emphasize the importance of preconception counseling in this high-risk patient population to reduce the morbidities associated with obesity and diabetes in pregnancy.
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Hypertensive Disorders of Pregnancy and Medication Use in the 2015 Pelotas (Brazil) Birth Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17228541. [PMID: 33217917 PMCID: PMC7698775 DOI: 10.3390/ijerph17228541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/05/2020] [Accepted: 11/13/2020] [Indexed: 12/20/2022]
Abstract
Hypertensive disorders of pregnancy account for approximately 22% of all maternal deaths in Latin America and the Caribbean. Pharmacotherapies play an important role in preventing and reducing the occurrence of adverse outcomes. However, the patterns of medications used for treating women with hypertensive disorders of pregnancy (HDP) living in this country is unclear. A population-based birth cohort study including 4262 women was conducted to describe the pattern of use of cardiovascular agents and acetylsalicylic acid between women with and without HDP in the 2015 Pelotas (Brazil) Birth Cohort. The prevalence of maternal and perinatal outcomes in this population was also assessed. HDP were classified according to Ministry of Health recommendations. Medications were defined using the Anatomical Therapeutic Chemical Classification System and the substance name. In this cohort, 1336 (31.3%) of women had HDP. Gestational hypertension was present in 636 (47.6%) women, 409 (30.6%) had chronic hypertension, 191 (14.3%) pre-eclampsia, and 89 (6.7%) pre-eclampsia superimposed on chronic hypertension. Approximately 70% of women with HDP reported not using any cardiovascular medications. Methyldopa in monotherapy was the most frequent treatment (16%), regardless of the type of HDP. Omega-3 was the medication most frequently reported by women without HDP. Preterm delivery, caesarean section, low birth weight, and neonatal intensive care admissions were more prevalent in women with HDP. Patterns of use of methyldopa were in-line with the Brazilian guidelines as the first-line therapy for HDP. However, the large number of women with HDP not using medications to manage HDP requires further investigation.
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Dominiczak AF, Meyer TJ. Hypertension: Update 2020. Hypertension 2019; 75:3-4. [PMID: 31786975 DOI: 10.1161/hypertensionaha.119.14352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Magee LA, Rey E, Asztalos E, Hutton E, Singer J, Helewa M, Lee T, Logan AG, Ganzevoort W, Welch R, Thornton JG, von Dadelszen P. Management of non-severe pregnancy hypertension – A summary of the CHIPS Trial (Control of Hypertension in Pregnancy Study) research publications. Pregnancy Hypertens 2019; 18:156-162. [DOI: 10.1016/j.preghy.2019.08.166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/12/2019] [Accepted: 08/24/2019] [Indexed: 10/25/2022]
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Ringholm L, Damm P, Mathiesen ER. Improving pregnancy outcomes in women with diabetes mellitus: modern management. Nat Rev Endocrinol 2019; 15:406-416. [PMID: 30948803 DOI: 10.1038/s41574-019-0197-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Women with pre-existing (type 1 or type 2) diabetes mellitus are at increased risk of pregnancy complications, such as congenital malformations, preeclampsia and preterm delivery, compared with women who do not have diabetes mellitus. Approximately half of pregnancies in women with pre-existing diabetes mellitus are complicated by fetal overgrowth, which results in infants who are overweight at birth and at risk of birth trauma and, later in life, the metabolic syndrome, cardiovascular disease and type 2 diabetes mellitus. Strict glycaemic control with appropriate diet, use of insulin and, if necessary, antihypertensive treatment is the cornerstone of diabetes mellitus management to prevent pregnancy complications. New technology for managing diabetes mellitus is evolving and is changing the management of these conditions in pregnancy. For instance, in Europe, most women with pre-existing diabetes mellitus are treated with insulin analogues before and during pregnancy. Furthermore, many women are on insulin pumps during pregnancy, and the use of continuous glucose monitoring is becoming more frequent. In addition, smartphone application technology is a promising educational tool for pregnant women with diabetes mellitus and their caregivers. This Review covers how modern diabetes mellitus management with appropriate diet, insulin and antihypertensive treatment in patients with pre-existing diabetes mellitus can contribute to reducing the risk of pregnancy complications such as congenital malformations, fetal overgrowth, preeclampsia and preterm delivery.
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Affiliation(s)
- Lene Ringholm
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark.
- Department of Endocrinology, Rigshospitalet, Copenhagen, Denmark.
- Steno Diabetes Center Copenhagen, Gentofte, Denmark.
| | - Peter Damm
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
| | - Elisabeth R Mathiesen
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Hypertension Editors' Picks Preeclampsia. Hypertension 2019; 74:e6-e21. [PMID: 31154866 DOI: 10.1161/hypertensionaha.119.13233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
IMPORTANCE The presence of preexisting type 1 or type 2 diabetes in pregnancy increases the risk of adverse maternal and neonatal outcomes, such as preeclampsia, cesarean delivery, preterm delivery, macrosomia, and congenital defects. Approximately 0.9% of the 4 million births in the United States annually are complicated by preexisting diabetes. OBSERVATIONS Women with diabetes have increased risk for adverse maternal and neonatal outcomes, and similar risks are present with type 1 and type 2 diabetes. Both forms of diabetes require similar intensity of diabetes care. Preconception planning is very important to avoid unintended pregnancies and to minimize risk of congenital defects. Hemoglobin A1c goals are less than 6.5% at conception and less than 6.0% during pregnancy. It is also critical to screen for and manage comorbid illnesses, such as retinopathy and nephropathy. Medications known to be unsafe in pregnancy, such as angiotensin-converting enzyme inhibitors and statins, should be discontinued. Women with obesity should be screened for obstructive sleep apnea, which is often undiagnosed and can result in poor outcomes. Blood pressure goals must be considered carefully because lower treatment thresholds may be required for women with nephropathy. During pregnancy, continuous glucose monitoring can improve glycemic control and neonatal outcomes in women with type 1 diabetes. Insulin is first-line therapy for all women with preexisting diabetes; injections and insulin pump therapy are both effective approaches. Rates of severe hypoglycemia are increased during pregnancy; therefore, glucagon should be available to the patient and close contacts should be trained in its use. Low-dose aspirin is recommended soon after 12 weeks' gestation to minimize the risk of preeclampsia. The importance of discussing long-acting reversible contraception before and after pregnancy, to allow for appropriate preconception planning, cannot be overstated. CONCLUSIONS AND RELEVANCE Preexisting diabetes in pregnancy is complex and is associated with significant maternal and neonatal risk. Optimization of glycemic control, medication regimens, and careful attention to comorbid conditions can help mitigate these risks and ensure quality diabetes care before, during, and after pregnancy.
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Affiliation(s)
| | - Rachel Blair
- Brigham and Women’s Hospital, Boston, Massachusetts, United States
| | - Anne L. Peters
- Keck School of Medicine of the University of Southern California, Los Angeles, California, United States
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Salama M, Rezk M, Gaber W, Hamza H, Marawan H, Gamal A, Abdallah S. Methyldopa versus nifedipine or no medication for treatment of chronic hypertension during pregnancy: A multicenter randomized clinical trial. Pregnancy Hypertens 2019; 17:54-58. [PMID: 31487657 DOI: 10.1016/j.preghy.2019.05.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/27/2019] [Accepted: 05/08/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To assess the maternal and fetal outcome in women with mild to moderate chronic hypertension on antihypertensive drug (methyldopa or nifedipine) therapy compared to no medication. METHODS This multicenter randomized clinical trial was conducted at Menoufia University hospital, Shibin El-kom Teaching hospital and 11 Central hospitals at Menoufia governorate, Egypt.490 pregnant women with mild to moderate chronic hypertension were randomized into three groups; methyldopa group (n = 166), nifedipine group (n = 160) and control or no medication group (n = 164) who were followed from the beginning of pregnancy till the end of puerperium to record maternal and fetal outcome. RESULTS Mothers in the control (no medication) group were more prone for the development of severe hypertension, preeclampsia, renal impairment, ECG changes, placental abruption and repeated hospital admissions (p < 0.001) when compared to mothers in both treatment groups (methyldopa and nifedipine). Neonates in the control (no medication) group were more prone for prematurity and admission to neonatal ICU (p < 0.001). CONCLUSION Antihypertensive drug therapy is advisable in mild to moderate chronic hypertension during pregnancy to decrease maternal and fetal morbidity. When considering which agents to use for treatment, oral methyldopa and nifedipine are valid options.
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Affiliation(s)
- Mohamed Salama
- Department of Obstetrics and Gynecology, Faculty of Medicine, Menoufia University, Egypt
| | - Mohamed Rezk
- Department of Obstetrics and Gynecology, Faculty of Medicine, Menoufia University, Egypt.
| | - Wael Gaber
- Department of Obstetrics and Gynecology, Faculty of Medicine, Menoufia University, Egypt
| | - Haitham Hamza
- Department of Obstetrics and Gynecology, Faculty of Medicine, Menoufia University, Egypt
| | - Hala Marawan
- Department of Community Medicine and Public Health, Faculty of Medicine, Menoufia University, Egypt
| | - Awni Gamal
- Department of Cardiology, Faculty of Medicine, Menoufia University, Egypt
| | - Sameh Abdallah
- Department of Pediatrics, Faculty of Medicine, Menoufia University, Egypt
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Braunthal S, Brateanu A. Hypertension in pregnancy: Pathophysiology and treatment. SAGE Open Med 2019; 7:2050312119843700. [PMID: 31007914 PMCID: PMC6458675 DOI: 10.1177/2050312119843700] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 03/22/2019] [Indexed: 12/14/2022] Open
Abstract
Hypertensive disorders of pregnancy, an umbrella term that includes preexisting and gestational hypertension, preeclampsia, and eclampsia, complicate up to 10% of pregnancies and represent a significant cause of maternal and perinatal morbidity and mortality. Despite the differences in guidelines, there appears to be consensus that severe hypertension and non-severe hypertension with evidence of end-organ damage need to be controlled; yet the ideal target ranges below 160/110 mmHg remain a source of debate. This review outlines the definition, pathophysiology, goals of therapy, and treatment agents used in hypertensive disorders of pregnancy.
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Affiliation(s)
| | - Andrei Brateanu
- Department of Internal Medicine, Cleveland Clinic, Cleveland, OH, USA
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Chen J, Bhattacharya S, Sirota M, Laiudompitak S, Schaefer H, Thomson E, Wiser J, Sarwal MM, Butte AJ. Assessment of Postdonation Outcomes in US Living Kidney Donors Using Publicly Available Data Sets. JAMA Netw Open 2019; 2:e191851. [PMID: 30977847 PMCID: PMC6481454 DOI: 10.1001/jamanetworkopen.2019.1851] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 02/12/2019] [Indexed: 12/30/2022] Open
Abstract
Importance There are limited resources providing postdonation conditions that can occur in living donors (LDs) of solid-organ transplant. Consequently, it is difficult to visualize and understand possible postdonation outcomes in LDs. Objective To assemble an open access resource that is representative of the demographic characteristics in the US national registry, maintained by the Organ Procurement and Transplantation Network and administered by the United Network for Organ Sharing, but contains more follow-up information to help to examine postdonation outcomes in LDs. Design, Setting, and Participants Cohort study in which the data for the resource and analyses stemmed from the transplant data set derived from 27 clinical studies from the ImmPort database, which is an open access repository for clinical studies. The studies included data collected from 1963 to 2016. Data from the United Network for Organ Sharing Organ Procurement and Transplantation Network national registry collected from October 1987 to March 2016 were used to determine representativeness. Data analysis took place from June 2016 to May 2018. Data from 20 ImmPort clinical studies (including clinical trials and observational studies) were curated, and a cohort of 11 263 LDs was studied, excluding deceased donors, LDs with 95% or more missing data, and studies without a complete data dictionary. The harmonization process involved the extraction of common features from each clinical study based on categories that included demographic characteristics as well as predonation and postdonation data. Main Outcomes and Measures Thirty-six postdonation events were identified, represented, and analyzed via a trajectory network analysis. Results The curated data contained 10 869 living kidney donors (median [interquartile range] age, 39 [31-48] years; 6175 [56.8%] women; and 9133 [86.6%] of European descent). A total of 9558 living kidney donors with postdonation data were analyzed. Overall, 1406 LDs (14.7%) had postdonation events. The 4 most common events were hypertension (806 [8.4%]), diabetes (190 [2.0%]), proteinuria (171 [1.8%]), and postoperative ileus (147 [1.5%]). Relatively few events (n = 269) occurred before the 2-year postdonation mark. Of the 1746 events that took place 2 years or more after donation, 1575 (90.2%) were nonsurgical; nonsurgical conditions tended to occur in the wide range of 2 to 40 years after donation (odds ratio, 38.3; 95% CI, 4.12-1956.9). Conclusions and Relevance Most events that occurred more than 2 years after donation were nonsurgical and could occur up to 40 years after donation. Findings support the construction of a national registry for long-term monitoring of LDs and confirm the value of secondary reanalysis of clinical studies.
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Affiliation(s)
- Jieming Chen
- Bakar Computational Health Sciences Institute, University of California, San Francisco
- Department of Pediatrics, University of California, San Francisco
- Now with the Department of Bioinformatics and Computational Biology, Genentech, Inc, South San Francisco, California
| | - Sanchita Bhattacharya
- Bakar Computational Health Sciences Institute, University of California, San Francisco
- Department of Pediatrics, University of California, San Francisco
| | - Marina Sirota
- Bakar Computational Health Sciences Institute, University of California, San Francisco
- Department of Pediatrics, University of California, San Francisco
| | - Sunisa Laiudompitak
- Bakar Computational Health Sciences Institute, University of California, San Francisco
| | | | | | - Jeff Wiser
- Northrop Grumman Information Systems Health IT, Rockville, Maryland
| | - Minnie M. Sarwal
- Department of Pediatrics, University of California, San Francisco
- Division of MultiOrgan Transplant, Department of Surgery and Medicine, University of California, San Francisco
| | - Atul J. Butte
- Bakar Computational Health Sciences Institute, University of California, San Francisco
- Department of Pediatrics, University of California, San Francisco
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