Best Rest: Rest Time Before Blood Pressure Measurement Trial

Johns Hopkins University

Status: Completed

Conditions: Hypertension; Cardiovascular Diseases; Cardiovascular Risk Factor; Blood Pressure

Treatments: Other: Timing of rest prior to blood pressure measurement

Study type: Interventional

Funder types: Other

Identifiers

NCT04031768

IRB00214827

Details and patient eligibility

About

The objectives of this study are to:

1. Determine the impact of wait time before initiating BP measurement on BP variability
2. Determine the difference in BP variability between measurements by amount of initial rest.

The investigators also aim to:

1. To determine the total time required to obtain a BP measurement.

Full description

Hypertension guidelines recommend a minimum of five minute rest time prior to blood pressure (BP) measurements obtained for screening, diagnosis and management of hypertension. This recommended wait time is often not adhered to and is cited as a barrier to regular screening due to length of time, clinic workflow and provider burden. It is unclear if BPs obtained at different rest intervals would provide clinically similar measurements. This study therefore aims to determine if BPs obtained immediately or after 2 minutes are rest are non-inferior to the BPs obtained after the guideline recommended 5 minutes of rest. It also aims to determine the time required to measure BP from start to finish, to allow for easier identification of other potential barriers to regular BP screening practices in busy clinical settings.

Enrollment: 116 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age 18-80 years

Exclusion criteria

• Presence of the following on both arms: rashes, gauze dressings, casts, edema, paralysis, tubes, open sores or wounds, withered arms, A-V shunts, or if blood has been drawn from arm within last week.
• Being mentally impaired, pregnant.
• Arm circumference exceeding 50 cm.

Trial design

Primary purpose: Screening

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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116 participants in 6 patient groups

0-2-5-5 minutes rest group

Other group

Description:

The order of rest periods for participants randomized to this arm will be: 0 minutes 2 minutes 5 minutes 5 minutes

Treatment:

Other: Timing of rest prior to blood pressure measurement

0-5-2-5 minutes rest group

Other group

Description:

The order of rest periods for participants randomized to this arm will be: 0 minutes 5 minutes 2 minutes 5 minutes

Treatment:

Other: Timing of rest prior to blood pressure measurement

2-0-5-5 minutes rest group

Other group

Description:

The order of rest periods for participants randomized to this arm will be: 2 minutes 0 minutes 5 minutes 5 minutes

Treatment:

Other: Timing of rest prior to blood pressure measurement

5-0-2-5 minutes rest group

Other group

Description:

The order of rest periods for participants randomized to this arm will be: 5 minutes 0 minutes 2 minutes 5 minutes

Treatment:

Other: Timing of rest prior to blood pressure measurement

2-5-0-5 minutes rest group

Other group

Description:

The order of rest periods for participants randomized to this arm will be: 2 minutes 5 minutes 0 minutes 5 minutes

Treatment:

Other: Timing of rest prior to blood pressure measurement

5-2-0-5 minutes rest group

Other group

Description:

The order of rest periods for participants randomized to this arm will be: 5 minutes 2 minutes 0 minutes 5 minutes

Treatment:

Other: Timing of rest prior to blood pressure measurement