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Masked Hypertension in Diabetes Mellitus Treatment Implications for Clinical Practice
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2013 (English)In: Hypertension, ISSN 0194-911X, E-ISSN 1524-4563, Vol. 61, no 5, 964-+ p.Article in journal (Refereed) Published
Abstract [en]

Although distinguishing features of masked hypertension in diabetics are well known, the significance of antihypertensive treatment on clinical practice decisions has not been fully explored. We analyzed 9691 subjects from the population-based 11-country International Database on Ambulatory Blood Pressure in Relation to Cardiovascular Outcomes. Prevalence of masked hypertension in untreated normotensive participants was higher (P<0.0001) among 229 diabetics (29.3%, n=67) than among 5486 nondiabetics (18.8%, n=1031). Over a median of 11.0 years of follow-up, the adjusted risk for a composite cardiovascular end point in untreated diabetic-masked hypertensives tended to be higher than in normotensives (hazard rate [HR], 1.96; 95% confidence interval [CI], 0.97-3.97; P=0.059), similar to untreated stage 1 hypertensives (HR, 1.07; CI, 0.58-1.98; P=0.82), but less than stage 2 hypertensives (HR, 0.53; CI, 0.29-0.99; P=0.048). In contrast, cardiovascular risk was not significantly different in antihypertensive-treated diabetic-masked hypertensives, as compared with the normotensive comparator group (HR, 1.13; CI, 0.54-2.35; P=0.75), stage 1 hypertensives (HR, 0.91; CI, 0.49-1.69; P=0.76), and stage 2 hypertensives (HR, 0.65; CI, 0.35-1.20; P=0.17). In the untreated diabetic-masked hypertensive population, mean conventional systolic/diastolic blood pressure was 129.2 +/- 8.0/76.0 +/- 7.3 mm Hg, and mean daytime systolic/diastolic blood pressure 141.5 +/- 9.1/83.7 +/- 6.5 mm Hg. In conclusion, masked hypertension occurred in 29% of untreated diabetics, had comparable cardiovascular risk as stage 1 hypertension, and would require considerable reduction in conventional blood pressure to reach daytime ambulatory treatment goal. Importantly, many hypertensive diabetics when receiving antihypertensive therapy can present with normalized conventional and elevated ambulatory blood pressure that mimics masked hypertension.

Place, publisher, year, edition, pages
2013. Vol. 61, no 5, 964-+ p.
Keyword [en]
ambulatory blood pressure, conventional blood pressure, diabetes mellitus, masked hypertension, population study
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-200668DOI: 10.1161/HYPERTENSIONAHA.111.00289ISI: 000317718200021OAI: oai:DiVA.org:uu-200668DiVA: diva2:624943
Available from: 2013-06-03 Created: 2013-06-03 Last updated: 2013-06-03Bibliographically approved

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Björklund-Bodegard, KristinaLind, Lars
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