Validation of the Microlife WatchBP O3 device for clinic, home, and ambulatory blood pressure measurement, according to the International Protocol

Ragazzo, Fabio; Saladini, Francesca; Palatini, Paolo

doi:10.1097/mbp.0b013e32833531ca

Cited by 53 publications

(28 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11,12 The monitors were programmed to measure BP at 20-min intervals for 24 h and were applied on a routine working day. Subjects were instructed to follow their usual daily activities but to avoid extremely strenuous physical activities and to remain still with the forearm extended during each BP reading.…”

Section: Methodsmentioning

confidence: 99%

Assessment of the Diurnal Blood Pressure Profile and Detection of Non-Dippers Based on Home or Ambulatory Monitoring

et al. 2012

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Assessment of the Diurnal Blood Pressure Profile and Detection of Non-Dippers Based on Home or Ambulatory Monitoring

et al. 2012

View full text Add to dashboard Cite

“…BP was measured at the clinic with validated oscillometric devices [23][24][25] or calibrated mercury sphygmomanometers after 5 minutes of rest in a sitting position using standardized recommended procedures. 21,22 Clinic BP values were calculated as the mean of 2 readings.…”

Section: Bp Measurementmentioning

confidence: 99%

Clinic Versus Daytime Ambulatory Blood Pressure Difference in Hypertensive Patients

et al. 2017

View full text Add to dashboard Cite

C onventional blood pressure (BP) determined in the clinic has been the standard of defining BP status for many decades.1 However, out-of-clinic BP (eg, ambulatory BP monitoring [ABPM]) can provide a more accurate estimate of the true BP and better predict clinical outcomes than conventional BP.1-3 The Framingham Heart Study showed that clinic systolic BP (SBP) rises from adolescence through most of adulthood. 4 In contrast, diastolic BP (DBP) initially increases in young adulthood, levels off at age 50 to 55 years, and then usually decreases after age 60 to 65. BP trajectories obtained using ABPM also increase with age, but the age gradients are less steep than those from conventional BP. 5 It has long been reported that seated clinic BP is usually higher than daytime ambulatory or home-measured BP, mostly in hypertensive patients. [5][6][7][8][9][10][11] The difference in clinic-ambulatory BP values has been used to quantify the so-called whitecoat effect (WCE), which has been related, at least in part, to the alert reaction and transient increase in BP that often occurs during the clinic visit.12,13 Some studies have reported that the clinic-daytime BP differences increase progressively both Abstract-Clinic blood pressure (BP) is usually higher than daytime ambulatory BP in hypertensive patients, but some recent studies have challenged this view, suggesting that this relationship is strongly influenced by age. We used the Spanish ambulatory BP monitoring cohort to examine differences between clinic and daytime BP by age among 104 639 adult hypertensive patients (office systolic/diastolic BP ≥140/90 mm Hg or treated) in usual primary-care practice, across the wide age spectrum. To assess the impact of age, cardiovascular variables, and clinic BP on the clinic-daytime BP differences, we built multivariable regression models of the average BP differences, white-coat hypertension (high clinic BP and normal daytime BP), and masked hypertension (normal clinic BP and high daytime BP). In most patients, mean clinic BP values were higher than daytime BP at all ages. Some 36.7% of patients had white-coat hypertension (amounting to 50% at clinic systolic BP of 140-159 mm Hg) and 3.9% had masked hypertension (amounting to 18% at clinic systolic BP of 130-139 mm Hg). Age explained 0.1% to 1.7% of the variance of quantitative or categorical BP differences (P<0.001). Cardiovascular variables explained an additional 1.6% to 3.4% of the variance (P<0.001). Finally, clinic BP generally explained ≥20% more of the variance (P<0.01). In this large study in usual clinical practice, clinic BP misclassified hypertension status in >40% of patients. This misclassification was not importantly influenced by age but was more evident in patients with borderline/grade 1 hypertension. These findings reinforce the importance of ambulatory BP monitoring for defining BP status in routine clinical practice. (Hypertension. 2017;69:211-219.

show abstract

“…In the analyses, BP was calculated as the mean of the last two of the three readings. Thereafter, 24-hour ABPM was performed using a validated automated non-invasive oscillometric device (Microlife® WatchBPO3 monitor), 31 We have used these terms for the sake of simplicity. However, among untreated patients, the terms normotension, whitecoat hypertension, masked hypertension, and sustained hypertension would be more correct, and among treated patients, the terms controlled hypertension, white-coat uncontrolled hypertension, masked uncontrolled hypertension, and uncontrolled hypertension would be appropriate.…”

Section: Study Variablesmentioning

confidence: 99%

Short-term variability and nocturnal decline in ambulatory blood pressure in normotension, white-coat hypertension, masked hypertension and sustained hypertension: a population-based study of older individuals in Spain

et al. 2017

View full text Add to dashboard Cite

El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription Three observer-measured home BPs and 24-hour ambulatory blood pressure monitoring (ABPM) were performed under standardized conditions. BP variability was defined as BP standard deviation and coefficient of variation. Differences in BP variability and nocturnal BP decrease between groups were adjusted for sociodemographic and clinical covariates using generalized linear models. Of the cohort, 21.7% had white-coat hypertension, 7.0% had masked hypertension, 21.4% had sustained hypertension, and 49.9% were normotensive. Twenty-four hour, daytime, and nighttime systolic BP standard deviations and coefficients of variation were significantly higher in subjects with white-coat hypertension than those with normotension (p<0.05) and were similar to subjects with sustained hypertension. In untreated subjects, 24-hour but not daytime or nighttime BP variability indexes were significantly higher in subjects with white-coat hypertension than in those with normotension (p<0.05). Percentage decrease in nocturnal systolic and diastolic BP was greatest in the white-coat hypertension group and lowest in the masked hypertension group in all patients and untreated patients (p<0.05). Lack of nocturnal decline in systolic blood pressure was observed in 70.2% of subjects with normotension, 57.8% of subjects with white-coat hypertension, 78.1% of subjects with masked hypertension, and 72.2% of subjects with sustained hypertension (p<0.001). In conclusion, 24-hour BP variability was higher in subjects with white-coat hypertension and blunted nocturnal BP decrease was observed more frequently in subjects with masked hypertension. These findings may help to explain the reports of increased cardiovascular risk in patients with white-coat hypertension and poor prognosis in those with masked hypertension, highlighting the importance of ABPM.

show abstract

Validation of the Microlife WatchBP O3 device for clinic, home, and ambulatory blood pressure measurement, according to the International Protocol

Cited by 53 publications

References 8 publications

Assessment of the Diurnal Blood Pressure Profile and Detection of Non-Dippers Based on Home or Ambulatory Monitoring

Assessment of the Diurnal Blood Pressure Profile and Detection of Non-Dippers Based on Home or Ambulatory Monitoring

Clinic Versus Daytime Ambulatory Blood Pressure Difference in Hypertensive Patients

Short-term variability and nocturnal decline in ambulatory blood pressure in normotension, white-coat hypertension, masked hypertension and sustained hypertension: a population-based study of older individuals in Spain

Contact Info

Product

Resources

About