Factors affecting blood pressure measurement validations

Not Applicable

Completed

• Conditions: Blood pressure measurement; Not Applicable

• Registration Number: ISRCTN69536660
• Lead Sponsor: Omron Healthcare UK

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Completion: 2019-03-31
• Study Start: 2020-04-29
• Last Update Posted: 11 May 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

1. Healthy volunteers aged between 18 and 85 years of age
2. Willing to have repeated blood pressure measured whilst sitting silently in four sequences of 9 readings in any one sequence
3. Resting heart rate between 50-110 bpm
4. Upper arm circumference = 22 cm and = 42 cm
5. Resting systolic blood pressure = 90 and = 180 mm Hg

Exclusion Criteria

Participants who:
1. Take anticoagulants
2. Bruise easily
3. Have circulatory problems (e.g. have an arterial shunt or arterial narrowing)
4. Have a pacemaker
5. Have atrial fibrillation
6. Have any other marked pulse irregularity
7. Have a resting heart rate < 50 or > 110 bpm
8. Have systolic and/or diastolic blood pressure sounds in either arm which are not easily heard by the observers
9. Have initial systolic and/or diastolic blood pressures in either arm which differ by > 4 mmHg
10. Have systolic blood pressure at rest < 90 or > 180 mmHg
11. Have blood pressure differences between arms at rest of = 20 mmHg systolic and/or = 10 mmHg diastolic
12. Have disorders of upper arm anatomy, muscle tone, tremor or power
13. Take medications or substances likely to cause short term changes in blood flow or pressure
14. Those who have had caffeine-containing drinks, alcohol or nicotine within 4 hours of the beginning of the study
15. Those lacking capacity to provide informed consent

Study & Design

• Study Type: Observational
• Study Design: Not specified