RecruitingNot ApplicableNCT06916741

Effect of a Sacral Lift on Femoral Vein Size and Exposure

Examining the Effect of a Sacral Lift on Femoral Vein Size and Exposure in the Emergency Department

Sponsor

Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)

Enrollment

35 participants

Start Date

Jul 23, 2025

Study Type

INTERVENTIONAL

Conditions

Femoral Artery Cannulation

Summary

The goal of this clinical trial is to learn if a sacral lift can improve femoral vein size and exposure, which may be clinically helpful during femoral vein cannulation among emergency department patients. The main questions it aims to answer are: Does a sacral lift increase femoral vein size compared to no sacral lift in both straight and frog-leg positions? Does a sacral lift improve femoral vein exposure (reduce overlap by the femoral artery) compared to no sacral lift in both straight and frog-leg positions? Researchers will compare femoral vein size and exposure measurements with and without a sacral lift in both straight and frog-leg leg positions to see if the sacral lift improves vein size and reduces artery overlap. Participants will: Undergo femoral vein ultrasound scans. Maintain a straight leg position with and without a sacral lift. Maintain a frog-leg position with and without a sacral lift.

Eligibility

Min Age: 18 YearsMax Age: 85 Years

Inclusion Criteria1

Adult emergency department patients.

Exclusion Criteria6

\<18 or \>85 years-old
Anyone with a history of: deep venous thrombosis (DVT), May-Thurner syndrome, lower extremity vein harvesting, arterial or venous surgery of the lower leg (e.g., peripheral arterial stent placement or sclerotherapy of lower extremity varicose veins), or peripheral vascular disease.
Anyone with a medical condition that could impact their physical ability to lay supine or abduct and externally rotate their hips safely (e.g., hip fracture).
Anyone whose femoral vessels cannot be clearly identified using a linear transducer
Anyone whose femoral vein is not compressible on the study ultrasound (indicating a DVT).
Vulnerable populations such as pregnant women and those who cannot consent.

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