Clinical Study Of Catheter-related Infections In Critically Ill Patients In Intensive Care Unit

Objective:To investigate the characterisrics of etiology and influential factor of catheter-related infections(CRI)in Medical Department intensive care unit.Methods:Patients with catheters in our hospital from Jan 2006 to Jan 2007, including 268 cases who have been intubated catheters,were enrolled in the study. The incidence of CRI,the characterisrics of etiology,the duration of catheter,location of intubated catheters,times of intubation,the original illness and using antibiotics were analyzed.Results:The incidence of CRI was 17.91%in intensive care unit.The major pathogens of CRI were fungi(16 strains,26.7%),Staphylococcus epidermidis(14 strains,23.3%),Staphylococcus aureus(12 strains,20%)and Acinetobacter(6 strains, 10%).The incidence of CBC was 18.66%.Staphylococcus epidermidis(16 strains, 28.6%),Staphylococcus aureus(11 strains,19.6%),fungi(8 strains,14.3%)and Micrococcus(7 strains,12.5%)were the major pathogens in cases who have been diagnosed CBC.the duration of catheter,location of intubated catheters,times of intubation,the original illness,indwelling multilateral lumen catheter were the independent risk factors.Conclusions:The incidence of CRI was 17.91%in intensive care unit.The major pathogens of CRI were fungi,Staphylococcus epidermidis,Staphylococcus aureus and Acinetobacter.Long duration,more times of intubation,the long period of using antibiotic,indwelling multilateral lumen catheter and catheter placed in femoral vein can increase risks of CRI.The incidence of catheter-related infections by tracheal intubation was the most(21%),but the constituent ratio of venous duct was the most(39.6%)...