Clinical trial NCT03128944: Feasibility Assessment of the Blood Pressure Imager, a Continuous Blood Pressure Monitor
Official title: Development of the Blood Pressure Imager
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Blood Pressure
Hypertension
Lead sponsor: Tufts University
Sponsor class: OTHER
First posted: 2017-04-25
Enrollment: 100
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: CASE_ONLY
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Study accepts adult (age of 18 years and above) volunteers with or without high blood pressure who are physically and mentally able to consent.

Brief summary: The investigators are developing Blood Pressure Imager (BPI), which is a new technology that does not require cuffs or expensive equipment, and can be used by untrained individuals in underserved, low-resource environments at their own homes or regional care settings. Over the last one-year the investigators have developed the BPI prototype, which is ready for testing. BPI is a wrist device that includes a camera, color lights and soft membrane with a reflective coating. In this device feasibility study, the BPI will be placed over the radial artery at the wrist with the help of a wrist strap. The primary purpose of this feasibility study is to compare the BPI with a commercially available cuff-based blood pressure measuring devices.

Detailed description: If the participant volunteers to participate in this study, after signing the informed consent, responses to background data - age, gender, height, weight, wrist circumference of dominant arm, history of high blood pressure, diabetes, high cholesterol and cardiovascular disease - will be collected; The BPI will be strapped to the right or left wrist making sure it is comfortable to the participant and the readings from the BPI will be recorded in a computer. The continuous BPI readings will be recorded for 2 minutes. Simultaneously, blood pressure readings will be obtained from a cuff-based, commercially available blood pressure measuring device placed in the same arm. The research team will take a minimum 3 and maximum 6 sets of readings. At the end of the BPI readings, we will place an ultrasound probe of the wrist at the level of the wrist to assess the size of the radial artery and depth of the artery from the skin.

Participant Timeline: The collection of the background data will take 5 to 10 mins. The placement of the BPI and cuff-blood pressure device and the data collection will take about 15 to 20 mins. The ultrasound image collection will 10 to 15 mins. Overall, the study procedures will be less than an hour.

Eligibility criteria: Inclusion Criteria:

* Tests will be performed with any adult volunteer who is physically and mentally able to perform the experimental tasks.

Exclusion Criteria:

* We will restrict the experiments to adult volunteers who are physically and mentally able to consent.

Primary outcomes:
measure: Comparison of BPI measurements with reference blood pressure measurements
timeFrame: 1 hour
Secondary outcomes:
Other outcomes:
Locations:
city: Boston
country: United States
facility: Tufts University
state: Massachusetts
Study officials:
affiliation: Tufts University
name: Mohan Thanikachalam
role: PRINCIPAL_INVESTIGATOR
References: