Abstract
Masked hypertension, defined as discordant in-office normotension versus out-of-office hypertension, is present in approximately 10 % to 40 % of patients not receiving antihypertensive treatment. Not only are persons with prehypertension more likely to have masked hypertension, but they also frequently develop target organ damage before transitioning to established sustained hypertension. Moreover, the percentage of persons with masked hypertension increases in the presence of cardiovascular disease, diabetes, or chronic renal failure. The gold standard for diagnosing masked hypertension is the 24-hour ambulatory BP monitor (ABPM), but home BP monitoring (HBPM) has also been a useful alternative procedure. Importantly, initiating antihypertensive treatment exclusively with the use of in-office BP monitoring may result in almost one-third of patients remaining with high-risk masked uncontrolled hypertension, which underscores the importance of HBPM and ABPM as supplements to in-office BP monitoring for the effective treatment of hypertension.
Similar content being viewed by others
References
Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
Pickering TG, Davidson K, Gerin W, Schwartz JE. Masked hypertension. Hypertension. 2002;40:795–6.
O’Brien E, Parati G, Stergiou G, Asmar R, Beilin L, Bilo G, et al. European Society of Hypertension position paper on ambulatory blood pressure monitoring. J Hypertens. 2013;31:1731–68. These are the latest European guidelines for ABPM, with excellent summaries of important clinical issues.
Bobrie G, Clerson P, Menard J, Postel-Vinay N, Chatellier G, Plouin PF. Masked hypertension: a systolic review. J Hypertens. 2008;26:1715–25.
Franklin SS, Thijs L, Li Y, Hansen TW, Boggia J, Liu Y, et al. Masked hypertension in Diabetes. Treatment implications for clinical practice. Hypertension. 2013;61:964–71. This study explains the rationale for the increased prevalence of masked hypertension with antihypertensive treatment.
Ohkubo T, Kikuya M, Metoki H, Asayama K, Obara T, Hashimoto J, et al. Prognosis of “masked “hypertension and “white-coat” hypertension detected by 24-h ambulatory blood pressure monitoring. Am Coll Cardiol. 2005;46:508–15.
Alwan H, Pruijm M, Ponte B, Ackermann D, Guessous I, Ehret G, et al. Epidemiology of masked and white-coat hypertension: The Family-Based SKIPOGH study. PLoS One. 2014;9:1–9.
Cacciolati C, Tzourio C, Hanon O. Blood pressure variability in elderly persons with white-coat and masked hypertension compared to those with normotension and sustained hypertension. Am J Hypertens. 2013;26:367–72.
Grassi G, Seravalle G, Trevano FQ, Dell’Oro R, Bolla G, Cuspidi C, et al. Neurogenic abnormalities in masked hypertension. Hypertension. 2007;50:537–42.
Koroboki E, Manios E, Psaltopoulou T, Vemmos K, Michas F, Alexaki E, et al. Circadian variation of blood pressure and heart rate in normotensives, white-coat, masked, treated and untreated hypertensives. Hell J Cardiol. 2012;53:432–8. This is the first study to use ABPM for evaluating circadian patterns of white-coat and masked hypertension.
Lurbe E, Torro I, Alvarez V, Nawrot T, Paya R, Redon J, et al. Prevalence, Persistence, and clinical significance of masked hypertension in youth. Hypertension. 2005;45:493–8.
Lurbe E, Thijs L, Torro MI, Alvarez J, Staessen JA, Redon J. Sexual dimorphism in the transition from masked to sustained hypertension in healthy youths. Hypertension. 2013;62:410–4. Masked hypertension was shown to be a frequent precursor to sustained hypertension, but predominantly in boys.
Lee SH, Kim JH, Kang MJ, Lee YA, Yang SW, Shin CH. Implications of nocturnal hypertension in children and adolescents with type 1 diabetes. Diabet Care. 2011;34:2180–5. This study showed the value of ABPM to detect nocturnal hypertension as a sign of masked hypertension in young juvenile diabetics, frequently with early evidence of hypertensive target organ damage.
Veerabhadrappa P, Diaz KM, Feairheller DL, Sturgeon KM, Williamson ST, Crabbe DL, et al. Endothelial-dependent flow-mediated dilation in African Americans with masked-hypertension. Am J Hypertens. 2011;24:1102–7. African-Americans with prehypertension have a high prevalence of masked hypertension in association with early evidence of vascular disease.
Mezick EJ, Hall M, Matthews KA. Sleep duration and ambulatory blood pressure in black and white adolescents. Hypertension. 2012;59:747–52.
Pogue V, Rahman M, Lipkowitz M, Toto R, Miller E, Faulkner M, et al. Disparate estimates of hypertension control from ambulatory and clinic blood pressure measurements in hypertensive kidney disease. Hypertension. 2009;53:20–7. African-Americans participating in the AASK trial had a high percentage of masked uncontrolled hypertension in association with nocturnal non-dipping or rising BP patterns.
Hänninen MR, Niiranen TJ, Puukka PJ, Kesäniemi YA, Kähönen M, Jula AM. Target organ damage and masked hypertension in the general population: the Finn-Home study. J Hypertens. 2013;31:1136–43.
Takeno K, Mita T, Nakayama S, Goto H, Komiya K, Abe H, et al. Masked hypertension, endothelial dysfunction, and arterial stiffness in type 2 diabetes mellitus: a pilot study. Am J Hypertens. 2012;45:165–70.
Leitão CB, Canani LH, Kramer CK, Boza JC, Pinotti AF, Gross JL. Masked hypertension, urinary albumin excretion rate, and echocardiographic parameters in putatively normotensive type 2 diabetic patients. Diabet Care. 2007;30:1255–60.
Mitsnefes M, Flynn J, Cohn S, Samuels J, Blydt-Hansen T, Saland J, et al. Masked hypertension associates with left ventricular hypertrophy in children with CKD. J Am Soc Nephrol. 2010;21:137–44.
Agarwal R, Sinha AD, Light RP. Toward a definition of masked hypertension and white-coat hypertension among hemodialysis patients. Clin J Am Soc Nephrol. 2011;6:2003–8. There is high risk of cardiovascular events in dialysis patients, especially in the presence of masked or sustained hypertension.
Sega R, Trocino G, Lanzarotti A, Carugo S, Cesana G, Schiavina R, et al. Alterations in cardiac structure in patients with isolated office, ambulatory, or home hypertension. Circulation. 2001;104:1385–92.
Myers MG, Godwin M, Dawes M, Kiss A, Tobe SW, Grant FC, et al. Conventional versus automated measurement of blood pressure in primary care patients with systolic hypertension: randomized parallel design controlled trial. BMJ. 2011;342:286–94. Myers and colleagues pioneered the use of animated measurements of BP in primary care offices as more accurate than manual methods.
Myers MG, Godwin M. Automated office blood pressure. Can J Cardiol. 2012;28:341–6.
Myers MG, Godwin M, Dawes M, Kiss A, Tobe SW, Kaczorowski J. The conventional versus automated measurement of blood pressure in the office (CAMBO) trial: masked hypertension sub-study. J Hypertens. 2012;30:1937–41.
Pickering TG, Gerin W, Schwartz, Spruill TM, Davidson KW. Franz Volhard lecture: should doctors still measure blood pressure? The missing patients with masked hypertension. J Hypertens. 2008;26:2259–67. This is a classic presentation by Pickering and colleagues that defines the natural history of masked hypertension.
Lovibond K, Jowett S, Barton P, Caulfield M, Heneghan C, Hobbs FD, et al. Cost-effectiveness of options for the diagnosis of high blood pressure in primary care: a modeling study. Lancet. 2011;378:1219–30.
Pierdomenico SD, Pannarale G, Rabbia F, Lapenna D, Licitra R, Zito M, et al. Prognostic relevance of masked hypertension in subjects with prehypertension. Am J Hypertens. 2008;21:679–883.
Shimbo D, Newman JD, Schwartz JE. Masked hypertension and prehypertension: diagnostic overlap and interrelationships with left ventricular mass: the Masked Hypertension study. Am J Hypertens. 2012;25:664–71. This study clearly showed that detection of masked hypertension was substantially higher when screening persons with high-normal BP versus normotensives.
Myers MG, Stergiou GS. Reporting bias: Achilles’ heel of home blood pressure monitoring. J Am Soc Hypertens. 2014;8:350–7.
Niiranen TJ, Hanninen MR, Johansson J, Reunanen A, Jula AM. Home-measured blood pressure is a stronger predictor of cardiovascular risk than office blood pressure: the Finn-Home study. Hypertension. 2010;55:1346–51.
Hänninen MR, Niiranen TJ, Puukka PJ, Mattila AK, Jula AM. Determinants of masked hypertension in the general population: the Finn-Home study. J Hypertens. 2011;29:1880–8.
Stergiou GS, Asayama K, Thijs L, Kollias A, Niiranen TJ, Hozawa A, et al. Prognosis of white-coat and masked hypertension. International Database of Home Blood Pressure in Relation to Cardiovascular Outcome. Hypertension. 2014;63;(on line). This five-population longitudinal study demonstrated that HBPM is comparable to ABPM in predicting cardiovascular outcome in masked and white-coat hypertension.
Stergiou GS, Salgami EV, Tzamouranis DG, Roussias LG. Masked hypertension assessed by ambulatory blood pressure versus home blood pressure monitoring: is it the same phenomenon? Am J Hypertens. 2005;18:772–8.
Gaborieau V, Delarche N, Gosse P. Ambulatory blood pressure monitoring versus self-measurement of blood pressure at home: correlation with target organ damage. J Hypertens. 2008;26:1919–27.
Kario K. Diagnosis of true uncontrolled hypertension using both home and ambulatory blood pressure monitoring. J Hum Hypertens. 2013;28:176–9.
Hodgkinson J, Mant J, Martin U, Guo B, Hobbs FD, Deeks JJ, et al. Relative effectiveness of clinic and home blood pressure monitoring compared with ambulatory blood pressure monitoring in diagnosis of Hypertension: systematic review. BMJ. 2011;342:3621–38. This meta-analysis showed that in comparison to ABPM, neither in-office measurement of BP nor HBPM had sufficient sensitivity or specificity to be recommended as a single diagnostic test for making hypertension treatment decisions.
Stergiou GS, Karpettas N, Destounis A, Tzamouranis D, Nasothimiou E, Kollias A, et al. Home blood pressure monitoring alone vs. combined clinic and ambulatory measurements in following treatment-induced changes in blood pressure and organ damage. Am J Hypertens. 2014;27:184–92. This is a novel randomized controlled trial comparing two different BP monitoring techniques on the treatment-induced regression of left ventricular hypertrophy.
Ishikawa J, Hoshide S, Eguchi K, Ishikawa S, Shimada K, Kario K, et al. Nighttime home blood pressure and the risk of hypertensive target organ damage. Hypertension. 2012;60:921–8. This is the first study to show that HBPM, using a monitor with a timer function to measure nighttime BP, was comparable to ABPM in assessing hypertensive target organ damage.
Banegas JR, Ruilope LM, de la Sierra A, de la Cruz JJ, Gorostidi M, Segura JS, et al. High prevalence of masked uncontrolled hypertension in people with treated hypertension. Eur Heart J. 2014;10:(on line). This large population study supports ABPM as the diagnostic test of choice to ensure that high-risk patients are properly treated to goal.
Acknowledgment
A special thank you to Dr. Kei Asayama for taking the time to review this manuscript.
Compliance with Ethics Guidelines
ᅟ
Conflict of Interest
Stanley S. Franklin and Nathan D. Wong declare that they have no conflict of interest.
Human and Animal Rights and Informed Consent
This article does not contain any studies with human or animal subjects performed by any of the authors.
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is part of the Topical Collection on Blood Pressure Monitoring and Management
Rights and permissions
About this article
Cite this article
Franklin, S.S., Wong, N.D. The Complexity of Masked Hypertension: Diagnostic and Management Challenges. Curr Hypertens Rep 16, 474 (2014). https://doi.org/10.1007/s11906-014-0474-4
Published:
DOI: https://doi.org/10.1007/s11906-014-0474-4