"Delayed air entrainment may occur in the presence of fibrin sheath formation via reinforcement of a vein-to-dermis fistula, which can lead to air embolism several hours after line removal" Kanga et al (2026).
Air embolism 7 hours after central line removal

Abstract:

Venous air embolism is a rare complication of central venous catheter insertion that can have devastating consequences. Delayed air entrainment may occur in the presence of fibrin sheath formation via reinforcement of a vein-to-dermis fistula, which can lead to air embolism several hours after line removal.

Reference:

Kanga B, Udeh C, Masood P, Andre H, Anthony D. A Rare Case of Delayed Cerebral Air Embolism Occurring 7 H After Central Line Removal. Clin Case Rep. 2026 Mar 5;14(3):e72200. doi: 10.1002/ccr3.72200. PMID: 41797749; PMCID: PMC12962839.