Prevalence of Masked Hypertension in Untreated and Treated Patients With Office Blood Pressure Below 130/80 mm Hg
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The recently released American College of Cardiology (ACC)/American Heart Association (AHA) hypertension guidelines1 proposed new values for defining hypertension: office blood pressure (BP) ≥130 systolic or ≥80 mm Hg diastolic. Furthermore, BP goals for hypertensive patients under pharmacological treatment have been recommended <130/80 mm Hg. New BP limits for office BP have been extended to define corresponding normal values for ambulatory BP monitoring (ABPM). Values of 125/75 mm Hg, 130/80 mm Hg, and 110/65 mm Hg have been proposed for 24-hour, daytime, and nighttime periods corresponding to the office cut-off of 130/80 mm Hg.1
The same guideline has introduced the recommendation of using out-of-office BP measurements for both confirmation of hypertension diagnosis and for titration of antihypertensive drugs.1 Specific recommendations include the screening of masked hypertension (MH) in untreated patients with office systolic BP 120 to 129 mm Hg or office diastolic BP 75 to 79 mm Hg, and the surveillance for masked uncontrolled hypertension (MUCH) in treated patients with office BP <130/80 mm Hg if target organ damage or high cardiovascular risk is present.1
In this report we sought to estimate the prevalence of MH and MUCH, defined by …