What does this research mean for the field?

The Accutracker II ambulatory blood pressure monitor provides accurate blood pressure measurements comparable to mercury column and intra-arterial methods at rest and during exercise, and performs reliably during 24-hour outpatient monitoring. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To assess the measurement accuracy of the Accutracker II ambulatory blood pressure monitor relative to mercury sphygmomanometry and intra-arterial lines, and to evaluate its 24-hour clinical performance.

December 1, 1989Journal of Hypertension

Clinical evaluation of the Accutracker II ambulatory blood pressure monitor: assessment of performance in two countries and comparison with sphygmomanometry and intra-arterial blood pressure at rest and during exercise

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Why the study?

Is the Accutracker II ambulatory blood pressure monitor accurate compared to mercury column sphygmomanometry and intra-arterial recordings in hypertensive subjects?

Population

119 hypertensive subjects (84 in Norway and 35 in the USA)

Comparison

Accutracker II ambulatory blood pressure monitor vs Mercury column sphygmomanometer and…

Design

Cross-sectional

Follow-up

24 h

Authors

WWWilliam B. WhiteUniversidad Católica de Córdoba PLPer Lund‐JohansenUppsala University EMEllen J. McCabeUniversity of Connecticut

Discussion

Member takes

Implication

Alerts clinicians to possible diastolic underestimation with Accutracker II; leaves open need for prospective device validation in broader cohorts.

Key Points

To assess the measurement accuracy of the Accutracker II ambulatory blood pressure monitor relative to mercury sphygmomanometry and intra-arterial lines, and to evaluate its 24-hour clinical performance.
Compared Accutracker II measurements against clinician-guided mercury column sphygmomanometry and intra-arterial blood pressure recordings at rest and during isometric and 100-watt bicycle exercise.
Assessed 24-hour ambulatory monitoring performance and error rates across 119 hypertensive subjects in Norway (n=84) and the USA (n=35).
Systolic blood pressure values matched reference standards, while diastolic readings were lower by 2.8 ± 4.2 mmHg (P < 0.001) versus mercury sphygmomanometry and by 2.0 ± 4.7 mmHg (P < 0.02) versus intra-arterial lines.
Limits of agreement between device and intra-arterial readings widened during exercise, but the discrepancies were no greater than clinician-versus-arterial differences.
The 24-hour data return was good to excellent in both countries, with significantly fewer arm-motion error codes recorded in Norway than in the USA.

Structured PICO

Is the Accutracker II ambulatory blood pressure monitor accurate compared to mercury column sphygmomanometry and intra-arterial recordings in hypertensive subjects?

Population

119 hypertensive subjects (84 in Norway and 35 in the USA)

Intervention

Accutracker II ambulatory blood pressure monitor

Comparator

Mercury column sphygmomanometer and intra-arterial recordings

Outcome

Accuracy of systolic and diastolic blood pressure measurements compared to standard methodssurrogate

The Accutracker II ambulatory blood pressure monitor provides accurate systolic BP measurements but slightly underestimates diastolic BP compared to standard methods, and performs well during 24-hour outpatient monitoring.

Cite This Study

White et al. (1989) studied this question.

synapsesocial.com/papers/6a1981f45d70402e70d964c2 https://doi.org/10.1097/00004872-198912000-00007

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Implication

Alerts clinicians to possible diastolic underestimation with Accutracker II; leaves open need for prospective device validation in broader cohorts.

Clinical evaluation of the Accutracker II ambulatory blood pressure monitor: assessment of performance in two countries and comparison with sphygmomanometry and intra-arterial blood pressure at rest and during exercise

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Clinical evaluation of the Accutracker II ambulatory blood pressure monitor: assessment of performance in two countries and comparison with sphygmomanometry and intra-arterial blood pressure at rest and during exercise

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider