S01E43 | EDTA for CVADs: Can a Line Lock Reduce ICU Catheter Complications?

In this episode of PRISM Rounds, we discuss the JAMA 2026 randomized clinical trial by Ornowska and colleagues testing whether 4% tetrasodium EDTA, or t-EDTA, used as a locking fluid for inactive central venous access device lumens, can reduce CVAD-associated complications in adult ICU patients. This pragmatic, triple-blind, multicenter, cluster-randomized crossover trial included 1468 ICU patients across 6 Canadian hospitals. The primary composite outcome—CVAD-associated bloodstream infection, catheter occlusion requiring alteplase, or catheter removal due to occlusion—occurred at 13.1 vs 19.9 events per 1000 catheter-days with t-EDTA versus control. The main signal was fewer catheter occlusions requiring alteplase; infection and thrombosis events were uncommon and should not be overinterpreted. Article link: https://jamanetwork.com/journals/jama... (https://jamanetwork.com/journals/jama...) Tags Critical Care, ICU, Central Line, CVAD, EDTA, t-EDTA, CLABSI, Catheter Occlusion, Alteplase, Venous Thrombosis, Infection Prevention, Vascular Access, JAMA, Randomized Trial, Pulmonary Critical Care, FOAMed, PRISMRounds