Zero to Five Automated Oscillometric Office Blood Pressure (AOBP) Measurement
Study Details
Study Description
Brief Summary
The Hypertension Canada Clinical Practice Guidelines for blood pressure measurement using AOBP recommend against any wait time prior to commencing the measurement. The recent AHA guidelines however call for a 5-minute rest first. In uncontrolled hypertension, AOBP is typically higher than the daytime readings from ambulatory blood pressure monitoring (ABPM), but this is not the case for patients with controlled hypertension.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
Objective:
Does a 5 minute rest or no rest before measurement using AOBP provide the most accurate reading in patients with controlled and uncontrolled hypertension, and in patients with white coat hypertension compared to daytime ABPM?
Implications:
Through this study, we hope to:
(i) Advance the understanding of the role of AOBP in measuring blood pressure. (ii) Determine whether a 5-minute rest, or no rest at all is needed prior to AOBP measurement.
(iii) Assess the relationship of AOBP to daytime ABPM for patient with controlled and uncontrolled hypertension and in patients with white coat hypertension.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Five minute rest
|
Diagnostic Test: Zero to Five Automated Oscillometric Office Blood Pressure (AOBP) Measurement
To compare the difference between the daytime ABPM and AOBP with zero or five minutes wait time.
|
| Active Comparator: Zero minute rest
|
Diagnostic Test: Zero to Five Automated Oscillometric Office Blood Pressure (AOBP) Measurement
To compare the difference between the daytime ABPM and AOBP with zero or five minutes wait time.
|
Outcome Measures
Primary Outcome Measures
- Difference in systolic and diastolic BP in patients randomized to zero or five minutes wait before the AOBP measurement. [4 months - 1 yr]
difference in blood pressure
Secondary Outcome Measures
- Difference in systolic and diastolic BP between the AOBP and daytime ABPM in patients randomized to zero or five minutes wait before the AOBP measurement. [4 months - 1yr]
difference in blood pressure
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Age 18 years or older
-
Referred for ABPM
-
Written informed consent
Exclusion Criteria:
- Unable to perform AOBP or ABPM for some reason
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Sunnybrook & Women's College Health Sciences Centre | Toronto | Ontario | Canada | M4N 3M5 |
Sponsors and Collaborators
- Sunnybrook Health Sciences Centre
- KMH Cardiology and Diagnostic Centres
Investigators
- Principal Investigator: Sheldon W Tobe, MD, Sunnybrook Research Institute
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 181-2018