Diagnosis of White Coat Hypertension by Ambulatory Blood Pressure Monitoring
- 1 August 1999
- journal article
- research article
- Published by Wolters Kluwer Health in Hypertension
- Vol. 34 (2) , 267-272
- https://doi.org/10.1161/01.hyp.34.2.267
Abstract
Abstract —White coat hypertension (WCH) is common in referred hypertensive patients. Ambulatory blood pressure monitoring (ABPM) is not free from the white coat syndrome. We examined the use of the elevation of the first and last measurements of ABPM for diagnosis of WCH in a hypertensive population that had been referred to a hospital-based hypertension unit. Data were obtained on 1350 patients for clinic and ABPM parameters. WCH, as diagnosed by conventional clinic blood pressure (BP) measurement, was compared with a variety of alternative methods determined from ABPM. In all cases, mean daytime pressure was P P 1 +V 5 , 21±7 mV versus 18±6 mV). Elevation of BP above 140 mm Hg systolic or 90 mm Hg diastolic in the first or last hour of monitoring diagnoses patients with a white coat response in whom there is a higher BP profile than in patients with classic white coat response alone. We suggest, therefore, that this is a better measure of the white coat phenomenon.Keywords
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