Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients

Introduction A significant percentage of patients admitted to hospital have undiagnosed hypertension. However, present hypertension guidelines in the UK, Europe and USA do not define a blood pressure threshold at which hospital inpatients should be considered at risk of hypertension, outside of the...

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Main Authors: Peter J Watkinson, Andrew J Farmer, Lionel Tarassenko, Laura C Armitage, Adam Mahdi, Beth K Lawson, Cristian Roman, Thomas Fanshawe
Format: Article
Language:English
Published: BMJ Publishing Group 2019-12-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/9/12/e033792.full
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author Peter J Watkinson
Andrew J Farmer
Lionel Tarassenko
Laura C Armitage
Adam Mahdi
Beth K Lawson
Cristian Roman
Thomas Fanshawe
author_facet Peter J Watkinson
Andrew J Farmer
Lionel Tarassenko
Laura C Armitage
Adam Mahdi
Beth K Lawson
Cristian Roman
Thomas Fanshawe
author_sort Peter J Watkinson
collection DOAJ
description Introduction A significant percentage of patients admitted to hospital have undiagnosed hypertension. However, present hypertension guidelines in the UK, Europe and USA do not define a blood pressure threshold at which hospital inpatients should be considered at risk of hypertension, outside of the emergency setting. The objective of this study is to identify the optimal in-hospital mean blood pressure threshold, above which patients should receive postdischarge blood pressure assessment in the community.Methods and analysis Screening for Hypertension in the INpatient Environment is a prospective diagnostic accuracy study. Patients admitted to hospital whose mean average daytime blood pressure after 24 hours or longer meets the study eligibility threshold for mean daytime blood pressure (≥120/70 mm Hg) and who have no prior diagnosis of, or medication for hypertension will be eligible. At 8 weeks postdischarge, recruited participants will wear an ambulatory blood pressure monitor for 24 hours. Mean daytime ambulatory blood pressure will be calculated to assess for the presence or absence of hypertension. Diagnostic performance of in-hospital blood pressure will be assessed by constructing receiver operator characteristic curves from participants’ in-hospital mean systolic and mean diastolic blood pressure (index test) versus diagnosis of hypertension determined by mean daytime ambulatory blood pressure (reference test).Ethics and dissemination Ethical approval has been provided by the National Health Service Health Research Authority South Central—Oxford B Research Ethics Committee (19/SC/0026). Findings will be disseminated through national and international conferences, peer-reviewed journals and social media.
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spelling doaj-art-7d44bd2f93e047d4b93243d615f950432025-08-20T02:50:38ZengBMJ Publishing GroupBMJ Open2044-60552019-12-0191210.1136/bmjopen-2019-033792Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patientsPeter J Watkinson0Andrew J Farmer1Lionel Tarassenko2Laura C Armitage3Adam Mahdi4Beth K Lawson5Cristian Roman6Thomas Fanshawe7Oxford University Hospitals NHS Foundation Trust, Oxford, UK4 Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK3 Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, Oxfordshire, UK1 Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK2 Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, Oxfordshire, UK1 Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UKDepartment of Engineering Science, Institute of Biomedical Engineering, University of Oxford Mathematical, Physical and Life Sciences Division, Oxford, UK1 Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UKIntroduction A significant percentage of patients admitted to hospital have undiagnosed hypertension. However, present hypertension guidelines in the UK, Europe and USA do not define a blood pressure threshold at which hospital inpatients should be considered at risk of hypertension, outside of the emergency setting. The objective of this study is to identify the optimal in-hospital mean blood pressure threshold, above which patients should receive postdischarge blood pressure assessment in the community.Methods and analysis Screening for Hypertension in the INpatient Environment is a prospective diagnostic accuracy study. Patients admitted to hospital whose mean average daytime blood pressure after 24 hours or longer meets the study eligibility threshold for mean daytime blood pressure (≥120/70 mm Hg) and who have no prior diagnosis of, or medication for hypertension will be eligible. At 8 weeks postdischarge, recruited participants will wear an ambulatory blood pressure monitor for 24 hours. Mean daytime ambulatory blood pressure will be calculated to assess for the presence or absence of hypertension. Diagnostic performance of in-hospital blood pressure will be assessed by constructing receiver operator characteristic curves from participants’ in-hospital mean systolic and mean diastolic blood pressure (index test) versus diagnosis of hypertension determined by mean daytime ambulatory blood pressure (reference test).Ethics and dissemination Ethical approval has been provided by the National Health Service Health Research Authority South Central—Oxford B Research Ethics Committee (19/SC/0026). Findings will be disseminated through national and international conferences, peer-reviewed journals and social media.https://bmjopen.bmj.com/content/9/12/e033792.full
spellingShingle Peter J Watkinson
Andrew J Farmer
Lionel Tarassenko
Laura C Armitage
Adam Mahdi
Beth K Lawson
Cristian Roman
Thomas Fanshawe
Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients
BMJ Open
title Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients
title_full Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients
title_fullStr Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients
title_full_unstemmed Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients
title_short Screening for Hypertension in the INpatient Environment(SHINE): a protocol for a prospective study of diagnostic accuracy among adult hospital patients
title_sort screening for hypertension in the inpatient environment shine a protocol for a prospective study of diagnostic accuracy among adult hospital patients
url https://bmjopen.bmj.com/content/9/12/e033792.full
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