What question did this study set out to answer?

To compare the accuracy of automated office blood pressure measurement to manual office measurement using ambulatory blood pressure as a standard.

November 24, 2011Family Practice

Conventional versus automated measurement of blood pressure in the office (CAMBO) trial

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Why the study?

Does automated office blood pressure measurement improve the accuracy of blood pressure assessment compared to manual measurement in patients with systolic hypertension?

Population

461 patients with systolic hypertension from 67 primary care practices in Eastern Canada.

Comparison

Automated office blood pressure measurement… vs Manual office blood pressure measurement in…

Design

RCT, Cluster randomization by primary care practice

Follow-up

2 years

Authors

MMMartin G. MyersGeneral Cardiology MGMarshall GodwinMemorial University of Newfoundland MDMartin DawesGeneral / Preventive / Lipids

Discussion

Member takes

Implication

AOBP aligns more closely with ambulatory BP than MOBP at the initial visit; supports preference for automated over manual office measurement in primary care hypertension assessment.

Key Points

To compare the accuracy of automated office blood pressure measurement to manual office measurement using ambulatory blood pressure as a standard.
Cluster randomized allocation of primary care practices in Eastern Canada to automated (36 practices) or manual blood pressure measurement (31 practices)
Patients with systolic hypertension had their blood pressure measured at enrollment and after 2 years of follow-up
Comparison of mean differences in blood pressure between the different measurement techniques.
AOBP patients experienced a greater decrease in systolic blood pressure at the first visit compared to MOBP patients [-14.3 vs -8.0, P < 0.001]
At Year 2, AOBP decreased by -16.3 while MOBP decreased by -12.4 (P = 0.02)
AOBP showed a smaller mean difference from ambulatory blood pressure compared to MOBP at two years (P = 0.13).

Structured PICO

Does automated office blood pressure measurement improve the accuracy of blood pressure assessment compared to manual measurement in patients with systolic hypertension?

Population

461 patients with systolic hypertension from 67 primary care practices in Eastern Canada (252 in AOBP group, 209 in MOBP group).

Intervention

Automated office blood pressure (AOBP) measurement using the BpTRU device in routine clinical practice.

Comparator

Manual office blood pressure (MOBP) measurement in routine clinical practice.

Outcome

Mean difference between awake ambulatory blood pressure (AABP) and MOBP versus AOBP.surrogate

Automated office blood pressure measurement virtually eliminates office-induced hypertension and provides readings that are significantly closer to awake ambulatory blood pressure than manual office measurements.

Cite This Study

Myers et al. (2011) studied this question.

synapsesocial.com/papers/6a7100ad35aa2c282ce252d7 https://doi.org/10.1093/fampra/cmr113

Topics

Hypertension management

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Implication

AOBP aligns more closely with ambulatory BP than MOBP at the initial visit; supports preference for automated over manual office measurement in primary care hypertension assessment.

Conventional versus automated measurement of blood pressure in the office (CAMBO) trial

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Conventional versus automated measurement of blood pressure in the office (CAMBO) trial

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Topics

Also Consider