SHM Converge Scientific Abstract ePoster Gallery-Does a Catheter-to-Vein Ratio >45 Increase Picc-Related Venous Thromboembolism

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This study examined whether a catheter-to-vein ratio (CVR) of 45% is linked to complications from peripherally inserted central catheters (PICCs), especially venous thromboembolism (VTE) and catheter occlusion.

Researchers reviewed 6,630 PICC placements from 52 hospitals in Michigan between August 2020 and April 2022. Adult patients on general medical units or in ICUs were included and followed until PICC removal, death, or 30 days. About 7% of PICCs had a CVR of 45% (470 catheters), while 93% had a CVR below 45% (6,160 catheters).

The main finding was that a CVR of 45% was <strong>not associated</strong> with higher rates of PICC-related VTE or catheter occlusion. In other words, using the 45% threshold did not appear to predict these complications.

However, catheter thickness mattered. When PICCs were analyzed by French size, larger catheters were associated with more VTE and catheter occlusion. This suggests that catheter size may be more important than the CVR threshold alone in determining risk.

The authors concluded that a CVR of 45% does not increase PICC-related VTE or occlusion, but further studies are needed to determine the best CVR cutoff and to better understand how catheter size affects complication risk.

Asset Subtitle

David Paje

Meta Tag

Author List David Paje, Elizabeth McLaughlin, Jennifer K. Horowitz, Megan Heath, Scott A. Flanders, Scott Kaatz, Steven J. Bernstein, Vineet Chopra

Category Research

Concept Catheter-to-Vein Ratio

Concept PICC Line

Concept Venous Thromboembolism

Concept Catheter Occlusion

Concept French Size

Distinguished Non-Finalist

Presenter Organization University of Michigan

Presenting Author David Paje

Track Patient Safety

Keywords

peripherally inserted central catheter

PICC

catheter-to-vein ratio

CVR 45%

venous thromboembolism

VTE

catheter occlusion

catheter size

French size

complication risk

Catheter-to-Vein Ratio

PICC Line

Venous Thromboembolism

Catheter Occlusion

French Size