{"title":"Clinical Trials That Have Changed Obstetric Practice: The Chronic Hypertension and Pregnancy (CHAP) Trial.","authors":"Ayodeji A Sanusi, Rachel G Sinkey, Alan T N Tita","doi":"10.1097/GRF.0000000000000857","DOIUrl":null,"url":null,"abstract":"<p><p>We describe the evolution of treatment recommendations for chronic hypertension (CHTN) in pregnancy, the CHTN and pregnancy (CHAP) trial, and its impact on obstetric practice. The US multicenter CHAP trial showed that antihypertensive treatment for mild CHTN in pregnancy [blood pressures (BP)<160/105 mm Hg] to goal<140/90 mm Hg, primarily with labetalol or nifedipine compared with no treatment unless BP were severe reduced the composite risk of superimposed severe preeclampsia, indicated preterm birth <35 weeks, placental abruption, and fetal/neonatal death. As a result of this trial, professional societies in the United States recommended treatment of patients with CHTN in pregnancy to BP goal<140/90 mm Hg.</p>","PeriodicalId":10415,"journal":{"name":"Clinical obstetrics and gynecology","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11062801/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical obstetrics and gynecology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/GRF.0000000000000857","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/3/11 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"OBSTETRICS & GYNECOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
We describe the evolution of treatment recommendations for chronic hypertension (CHTN) in pregnancy, the CHTN and pregnancy (CHAP) trial, and its impact on obstetric practice. The US multicenter CHAP trial showed that antihypertensive treatment for mild CHTN in pregnancy [blood pressures (BP)<160/105 mm Hg] to goal<140/90 mm Hg, primarily with labetalol or nifedipine compared with no treatment unless BP were severe reduced the composite risk of superimposed severe preeclampsia, indicated preterm birth <35 weeks, placental abruption, and fetal/neonatal death. As a result of this trial, professional societies in the United States recommended treatment of patients with CHTN in pregnancy to BP goal<140/90 mm Hg.
期刊介绍：
Each issue of Clinical Obstetrics and Gynecology is a complete symposium on one or two timely topics of interest in obstetrics and gynecology. For each quarterly issue, two prominent guest editors solicit contributions on key clinical topics of interest to practicing physicians. Procedures, current clinical problems, medical and surgical treatments, and effective diagnostic aids are all carefully reviewed in original articles. The result is an instructive resource that dispenses trustworthy clinical guidance that enhances your understanding of key areas of your practice.
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