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Screening for hypertension in adults during emergency department consultation: a systematic review

Supplemental Digital Content is available in the text. A large proportion of patients affected with hypertension go undetected. A systematic review was conducted to assess the performance of a screening strategy in adults using blood pressure measurement at the time of an emergency department consultation. A systematic literature search on Embase, CINHAL and Medline was carried out. This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses–Diagnostic Test Accuracy. Intervention studies with adults including at least one blood pressure measurement for all participants were included. A repeat blood pressure assessment had to have been carried out to assess the validity of the elevated blood pressure value within the next few days after the emergency department initial visit. Out of 1030 articles identified, published between 1985 and 2018, 10 articles met the inclusion criteria. There were no randomized clinical trials. Mean age of participants was 51.6 years. A single study reports that blood pressure screening was measured according to hypertension guidelines referred to in the study. The average follow-up rate was 61.9% (95% confidence interval 45.5–78.3). For diagnostic confirmation, four studies used a blood pressure measurement method based on the reported guidelines. Half of the patients (50.2%) with elevated blood pressure during the emergency department visit had blood pressure corresponding to uncontrolled elevated blood pressure at follow-up measurement. The contribution of emergency department to the screening for hypertension, by recognizing the presence of elevated blood pressure and then making a referral for diagnostic confirmation, could provide an opportunity to detect a large number of people with hypertension.