Withings Study to Analyze the Accuracy of Pulse Wave Velocity Measurement With Bathroom Scales (WIVOP-Scales)

Study Overview
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Brief Summary
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The aim of this study is to evaluate the diagnostic performance of Withings bathroom scales WBS08 and WBS12 to measure PWV (Pulse Wave Velocity).

Detailed Description
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Patients likely to have a high PWV (having hypertension, sleep apnea or chronic obstructive pulmonary disease) are included in hospitals. Each patient will have his PWV measured with Withings WBS08 and WBS12 and its reference the SphygmoCor CvMS.

Official Title
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Withings Study to Analyze the Accuracy of Pulse Wave Velocity Measurement With Bathroom Scales

Conditions
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Vascular Stiffness

Intervention / Treatment
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* Other: PWV measurement


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The subject is an adult, man or woman (18 years old or more), Subjects affiliated or eligible to a social security system, Subjects having expressed their consent to take part in the study. Two subsets of patients will be included in the study : Hypertensive patient Patient having sleep apnea or COPD (Chronic obstructive pulmonary disease) Exclusion Criteria: Minors under 18 years old, Subject is pregnant, Subjects having a pacemaker or an ICD (Implantable cardioverter defibrillator), Subjects having refused to give their consent, Vulnerable subjects according to the French regulation in force: Individuals deprived of liberty by a court, medical or administrative order, Individuals legally protected or unable to express their consent to take part in the study, Individuals unaffiliated to or not beneficiary of a social security system, Individuals who fit in multiple categories above, Individuals linguistically or mentally unable to express their consent, Individuals having a lower limb amputation bigger than toes, Individuals not able to stand still for a few minutes.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Hypertension<br>Hypertensive patient | Other: PWV measurement<br>* Patient will have its PWV measured with the reference (the SphygmoCor) and by stepping on Withings bathroom scales WBS08 and WBS12.<br>|
| Sleep apnea or COPD<br>Patient having sleep apnea or COPD (Chronic obstructive pulmonary disease) | Other: PWV measurement<br>* Patient will have its PWV measured with the reference (the SphygmoCor) and by stepping on Withings bathroom scales WBS08 and WBS12.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| PWV measurement bias | Difference between the PWV measured and the PWV reference (m.s-1) | 1 year | 
| PWV measurement deviation | The standard deviation of the difference between the PWV measured and the PWV reference (m.s-1) | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Safety use | The percentage of participant having adverse effects over the total number of participant included. | 1 year |