Masked Nocturnal Hypertension: A Complex Phenomenon to Detect in Clinical Practice

Fabio Angeli, Gianpaolo Reboldi, Paolo Verdecchia

Research output: Contribution to journalArticlepeer-review


Masked hypertension is generally defined as normal clinic
blood pressure (BP) combined with elevated out-of-clinic
BP, the latter assessed using either self-measured BP or am-
bulatory BP monitoring (ABPM). In other words, masked
hypertension is present when in-office normotension turns
into out-of-office hypertension.1,2 The definition of masked
hypertension should be restricted to untreated hypertensive
patients. Indeed, in patients treated with BP-lowering drugs,
a normal office BP associated with a high BP out of the
clinic (masked uncontrolled hypertension) does not identify
“masked” hypertension because these subjects had already
been diagnosed as having hypertension.1,2
Masked hypertension is present in a considerably high
percentage of untreated persons and it is an insidious and
prognostically adverse condition.1,3
Original languageEnglish
Pages (from-to)578-580
Number of pages3
JournalAmerican Journal of Hypertension
Issue number6
Publication statusPublished - Jun 22 2021


  • Blood Pressure Monitoring, Ambulatory
  • Humans
  • Masked Hypertension/diagnosis


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