The Effect of Head and Shoulder Positioning on the Cross-sectional Area of the Subclavian Vein in Obese Adults

The Effect of Head and Shoulder Positioning on the Cross-sectional Area and Location of the Subclavian Vein in Obese Adults

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03993587

Enrollment

Registered

2019-06-20

Start date

2019-08-20

Completion date

2020-06-30

Last updated

2021-03-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Normal Volunteers

Brief summary

In the present study, the cross-sectional area of subclavian vein, and the depth of the SCV from the skin are assessed in different head positions (neutral, rotation to ipsilateral or contralateral sides) and different shoulder positions (neutral or lowered) in spontaneous breathing obese adults.

Interventions

OTHERUltrasound assessment of vessels

Subclavian vein and related structures are examined using ultrasonography

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

19 Years to No maximum

Inclusion criteria

* Healthy obese adults (BMI ≥ 30)

Exclusion criteria

* Medication affecting vascular elasticity History of central venous catheterization or clavicle fracture History of lung surgery, operation of chest cage

Design outcomes

Primary

Measure	Time frame	Description
Cross-sectional area of subclavian vein	through the completion of assessment, an average of 1 hr	Cross-sectional area of subclavian vein is assessed.

Secondary

Measure	Time frame	Description
Depth of subclavian vein from skin	through the completion of assessment, an average of 1 hr	Depth of subclavian vein from skin is assessed.

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026