Central Line Infection

The goal of this type of study is to construct the continuous quality promotion project "ICU-NO CRBSI(Catheter-Related Bloodstream Infection , CRBSI)" based on improvement science, and to verify its effect in the prevention of central venous catheter-related bloodstream infection and continuous quality improvement in ICU ( Intensive Care Unit , ICU) through multi-center implementation and two rounds of improvement. The main question\[s\] it aims to answer are: What is the incidence of catheter-related bloodstream infection in the ICU of participating units? How compliant are health care providers in the ICU with evidence-based sensory control practices for the prevention of catheter-associated bloodstream infection? Participants will be provided with the hospital's routine CVC (Central Venous Catheter ,CVC) care practices and CVC quality improvement measures based on evidence-based guidelines What technical and cultural support is needed to implement quality and safety improvement measures?