Healthy Volunteers
Conditions
Keywords
Axillary vein ultrasound, Subclavian vein ultrasound
Brief summary
The main objective of this study is the demonstration of an increase of over 50% of the surface visible on ultrasound (mm2) of the axillary vein and subclavian vein in arm abduction (90 °) and external rotation (90 °) with respect to the surface of the subclavian vein along the arm body.
Detailed description
The secondary objective of this study is to investigate the anatomical relationships of these veins with the subclavian artery, the brachial plexus and the pleura, and assess the depth of the vein to the skin. Specifically, the following will be assessed: * the depth of the vein (mm) * the length of the minor axis (mm) * the length of the major axis (mm) * artery-vein distance (mm) * vein-pleural distance (mm) * the distance of the brachial plexus (mm)
Interventions
PROCEDUREUltrasound measures
Ultrasound will be used to measure the surfaces of the axillary and subclavian veins with the arms in different positions. Our goal is to compare the vein surface area available among different vein-position combinations. Our goal does not include testing specific devices.
Sponsors
Centre Hospitalier Universitaire de Nīmes
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* The volunteer must have given his/her informed and signed consent * The volunteer must be insured or beneficiary of a health insurance plan * The volunteer is 18 to 50 years old
Exclusion criteria
* The volunteer is participating in another study * The volunteer is in an exclusion period determined by a previous study * The volunteer is under judicial protection, under tutorship or curatorship * The volunteer refuses to sign the consent * It is impossible to correctly inform the volunteer * The volunteer is pregnant, parturient, or breastfeeding * The volunteer has a contraindication for the exams in this study * Volunteer with a history of trauma or surgery in the axilla or the shoulder girdle * Volunteer with a known history of venous thrombosis in the axillary and / or subclavian veins
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| vein surface (mm^2), subclavian vein with arm along side the body | baseline (transversal); Day 0 |
| vein surface (mm^2), subclavian vein with arm in abduction and external rotation | baseline (transversal); Day 0 |
| vein surface (mm^2), axillary vein with arm along side the body | baseline (transversal); Day 0 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Artery-vein distance is displayed in the section plane? yes/no | baseline (transversal); Day 0 | Ultrasound of subclavian vein with arm along side the body. |
| Artery-vein distance (mm) | baseline (transversal); Day 0 | Ultrasound of subclavian vein with arm along side the body. Artery-vein distance is displayed in the section plane? = yes |
| The vein-pleura distance is displayed in the section plane? yes/no | baseline (transversal); Day 0 | Ultrasound of subclavian vein with arm along side the body. |
| Vein-pleura distance (mm) | baseline (transversal); Day 0 | Ultrasound of subclavian vein with arm along side the body. The vein-pleura distance is displayed in the section plane? = yes |
| The distance to the brachial plexus is visualized in the sectional plane? yes/no | baseline (transversal); Day 0 | Ultrasound of subclavian vein with arm along side the body. |
| Distance to brachial plexus (mm) | baseline (transversal); Day 0 | Ultrasound of subclavian vein with arm along side the body. The distance of the brachial plexus is visualized in the sectional plane? = yes |
| Vein depth (mm), subclavian vein with arms along side the body | baseline (transversal); Day 0 | — |
| Length of minor axis (mm), subclavian vein with arm in abduction and external rotation | baseline (transversal); Day 0 | — |
| Length of major axis (mm), subclavian vein with arm in abduction and external rotation | baseline (transversal); Day 0 | — |
| Vein depth (mm), axillary vein with arm along side the body | baseline (transversal); Day 0 | — |
| Length of minor axis (mm), axillary vein with arm along side the body | baseline (transversal); Day 0 | — |
| Length of major axis (mm), axillary vein with arm along side the body | baseline (transversal); Day 0 | — |
| Vein depth (mm), subclavian vein with arm in abduction and external rotation | baseline (transversal); Day 0 | — |
| Length of minor axis (mm), subclavian vein with arms along side the body | baseline (transversal); Day 0 | — |
| Length of major axis (mm), subclavian vein with arms along side the body | baseline (transversal); Day 0 | — |
Countries
France
Outcome results
None listed