Using the Blood Pressure TRU in Clinical Settings: a Knowledge Translation Study

Using the Bp TRU in Clinical Settings: a Knowledge Translation Study

Context: Use of automated blood pressure (BP) measurement devices in the office setting is increasingly recognized as superior to manual BP measurement. Current recommendations are to have the patient alone in a quiet room, with no interactions with health care professionals during the readings. However, this may not be practical in primary care offices where the exam rooms are constantly being used.

Objective: To compare measurements with an automated BP device in private examination rooms with measurements in non-private areas of a primary care office.

Design: Randomized controlled trial with cross-over.

Setting: Community based primary care office participating in the NorTReN Practice Based Research Network in Toronto, Ontario.

Participants: Fifty consecutive consenting patients over the age of 18 having their BP checked as part of their routine care.

Intervention: Patients will be randomly allocated to either automated BP measurement in an exam room, or in a non-private area of the clinic. After being tested in the first location they will subsequently be tested in the second location with the same device.

Main outcome measure: The primary outcome measure is a comparison between the mean systolic values of the automated BP measurements in the two office areas. The investigators will use the t-test for paired samples. The secondary outcome is a comparison of systolic values for patients with previously documented hypertension. The investigators define a clinically meaningful result as a difference of 5 mmHg or more in systolic BP.

Conclusion: New technology is more readily adopted if barriers to use are minimized. If the investigators find no differences in BP readings between office locations, physicians will then have the convenience of an additional office area to implement the automated BP measurement device.

Study Overview

• Status: Completed
• Conditions: Blood Pressure

• Study Type: Observational
• Enrollment (Actual): 50

Contacts and Locations

Study Locations

• Canada
  • Ontario
    • North York, Ontario, Canada, M3B 3S6
      • North York Family Health Team

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Patients presenting to a community-based primary care office for routine blood pressure measurement.

Description

Inclusion Criteria:

• Able to consent
• Over the age of 18

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Crossover
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
All patients over the age of 18

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Automated Blood Pressure measurements in two different environments	Comparison of the mean systolic values of the automated blood pressure measurement in the private exam room and the common area (laboratory area).	Day of consent

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Automated Blood Pressure values of hypertensive patients in two different environments	Comparison of the mean systolic blood pressure measurements for patients with previously documented hypertension in the private exam room and the common area (laboratory area).	Day of consent

Collaborators and Investigators

• Sponsor: North Toronto Primary Care Research Network
• Investigators: Principal Investigator: Michelle Greiver, MD, North Toronto Primary Care Research Network

Study record dates

Study Major Dates

• Study Start: May 1, 2011
• Primary Completion (Actual): January 1, 2012
• Study Completion (Actual): January 1, 2012

Study Registration Dates

• First Submitted: May 18, 2011
• First Submitted That Met QC Criteria: May 19, 2011
• First Posted (Estimate): May 20, 2011

Study Record Updates

• Last Update Posted (Estimate): April 26, 2012
• Last Update Submitted That Met QC Criteria: April 25, 2012
• Last Verified: January 1, 2012

More Information

Terms related to this study

• Keywords: measurement in two environments
• Other Study ID Numbers: 11-0519