Central venous catheters (CVCs) are essential in modern healthcare but are associated with significant risks, particularly catheter-related bloodstream infections (CRBSIs). Current guidelines do not recommend routine replacement of CVCs based on time alone. However, recent evidence challenges this recommendation. A comprehensive literature review was conducted, focusing on studies exploring the risk-factors of short-term, non-hemodialysis CVCs, that were published in the last two decades while including seminal older works for context. The guidelines regarding scheduled CVC-replacement are not based on sufficiently convincing data. Current literature establishes the significance of CVC-duration as a major risk-factor for CRBSI occurrence, especially after 9-14 days of catheter-dwelling. The daily CRBSI risk is probably not constant, and the cumulative risk may reach high rates after 9-14 days, especially for femoral and jugular insertions compared to the subclavian site, suggesting potential benefits of scheduled CVC replacement, especially for non-subclavian catheters.

Cohen R. Reassessing the need for scheduled replacement of short term central venous catheters: A narrative comprehensive review. Infect Prev Pract. 2024 Nov 7;6(4):100420. doi: 10.1016/j.infpip.2024.100420. PMID: 39639937; PMCID: PMC11617858.