Postpartum management of the hypertensive disorders of pregnancy

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This systematic review evaluated the effectiveness and safety of interventions to reduce blood pressure in people with postpartum hypertension, using randomized controlled trials found through searches of the Cochrane Pregnancy and Childbirth Trials Register (with an additional update in 2024). Across 39 included trials, overall evidence was low/very low certainty, and there were no safety concerns noted; diuretics (mostly furosemide) showed improved BP control compared with placebo/no therapy, but the review noted antihypertensives were given to both groups in those trials. For antihypertensive comparisons, data were insufficient for several placebo comparisons, and across non-severe versus severe hypertension trials, BP reductions varied by drug class (e.g., lower BP with diltiazem vs nifedipine for severe hypertension), while uterine curettage produced small lab improvements of unclear clinical importance and models including BP self-monitoring/management or lifestyle change reduced BP at eight months postpartum. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Abstract Objective: To assess the effectiveness and safety of management strategies for postpartum hypertension. Data sources: We searched the Cochrane Pregnancy and Childbirth’s Trials Register in collaboration with their Information Specialist, on 20/October/2022. As the Pregnancy and Childbirth Review Group closed (2023), we updated our literature search on 17/September/2024, using a strategy developed with an information specialist from the Royal College of Physicians, United Kingdom. Study eligibility criteria: We included randomised controlled trials (RCTs) assessing any intervention (pharmacological, surgical, or models of care) used to reduce maternal blood pressure (BP) in participants with postpartum hypertension. Study appraisal and synthesis methods: Search results were screened independently by two authors, with any disagreement resolved by consensus. Data were extracted independently, onto a Cochrane-based bespoke form which included Cochrane’s Trustworthiness Screening Tool. Random-effects meta-analysis was performed in RevMan. Results: Of 538 studies identified, 39 were included. Evidence was low/very low certainty. There were no safety concerns. In seven trials (n=1113 participants) of diuretics (primarily furosemide) vs. placebo/no therapy, BP control was better, due to trials administering antihypertensives to both groups. In three trials (n=96) of antihypertensive vs. placebo, data were insufficient to inform effectiveness. In eight trials (n=749) of antihypertensive (4 types) vs. another (2 types) for non-severe hypertension, additional antihypertensive need was similar in comparisons with either nifedipine or methyldopa, but greater when amlodipine or enalapril were compared with nifedipine. In eight trials (n=403) of antihypertensive vs. another for severe hypertension, BP was lower with diltiazem (vs. nifedipine). In four trials (n=668) of uterine curettage vs. usual care, small improvements in some laboratory parameters were of unclear clinical importance. In nine trials (n=1263) of models of postnatal care (usually BP self-monitoring/management, N=6) vs. usual care, BP was lower eight months postpartum following BP self-monitoring/management or lifestyle change. Conclusions: Diuretics cannot be recommended as monotherapy. There is little to guide choice of antihypertensive. Of greatest relevance to current practice is whether enalapril and amlodipine are as effective as nifedipine, and the role of BP self-measurement/management and lifestyle change in preventing longer-term cardiovascular outcomes.
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Postpartum management of the hypertensive disorders of pregnancy | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Systematic Review Postpartum management of the hypertensive disorders of pregnancy Isabel D Tol, Asma Khalil, Alexandra E Cairns, Richard J McManus, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7434430/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Objective : To assess the effectiveness and safety of management strategies for postpartum hypertension. Data sources : We searched the Cochrane Pregnancy and Childbirth’s Trials Register in collaboration with their Information Specialist, on 20/October/2022. As the Pregnancy and Childbirth Review Group closed (2023), we updated our literature search on 17/September/2024, using a strategy developed with an information specialist from the Royal College of Physicians, United Kingdom. Study eligibility criteria: We included randomised controlled trials (RCTs) assessing any intervention (pharmacological, surgical, or models of care) used to reduce maternal blood pressure (BP) in participants with postpartum hypertension. Study appraisal and synthesis methods: Search results were screened independently by two authors, with any disagreement resolved by consensus. Data were extracted independently, onto a Cochrane-based bespoke form which included Cochrane’s Trustworthiness Screening Tool. Random-effects meta-analysis was performed in RevMan. Results : Of 538 studies identified, 39 were included. Evidence was low/very low certainty. There were no safety concerns. In seven trials (n=1113 participants) of diuretics (primarily furosemide) vs. placebo/no therapy, BP control was better, due to trials administering antihypertensives to both groups. In three trials (n=96) of antihypertensive vs. placebo, data were insufficient to inform effectiveness. In eight trials (n=749) of antihypertensive (4 types) vs. another (2 types) for non-severe hypertension, additional antihypertensive need was similar in comparisons with either nifedipine or methyldopa, but greater when amlodipine or enalapril were compared with nifedipine. In eight trials (n=403) of antihypertensive vs. another for severe hypertension, BP was lower with diltiazem (vs. nifedipine). In four trials (n=668) of uterine curettage vs. usual care, small improvements in some laboratory parameters were of unclear clinical importance. In nine trials (n=1263) of models of postnatal care (usually BP self-monitoring/management, N=6) vs. usual care, BP was lower eight months postpartum following BP self-monitoring/management or lifestyle change. Conclusions : Diuretics cannot be recommended as monotherapy. There is little to guide choice of antihypertensive. Of greatest relevance to current practice is whether enalapril and amlodipine are as effective as nifedipine, and the role of BP self-measurement/management and lifestyle change in preventing longer-term cardiovascular outcomes. Obstetrics & Gynecology postpartum hypertension randomized trial diuretic antihypertensive uterine curettage blood pressure self-monitoring lifestyle Full Text Additional Declarations The authors declare no competing interests. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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