Relationship Between Optimal Time Duration to Use Peripheral Vein Catheter and Bacterium Colonization in Summer Season / 中华医院感染学杂志

ABSTRACT

OBJECTIVE To study the relationship between how long to use peripheral vein catheter and bacterium colonization,then to make an approach to the optimal time duration of using peripheral vein catheter in summer season from infection prevention viewpoint.METHODS To divide the patients into four groups according to the different time duration of using peripheral vein catheter,and select 20 samples at random in every group.Make bacterial culture from skin(before sterilization,after sterilization and withdrawal of needles) and the catheter,and compare the colony number and strain distribution.RESULTS There was bacterium colonization on punctured skin after using peripheral vein catheter for a long time.The longer it was,the higher the positive rate was.After 96 hours there was bacterium colonization in vein catheter(10%) and after 120 hours positive rate was obviously higher(40%).CONCLUSIONS After using peripheral vein catheter for 96 hours in summer season,there is bacterium colonization in catheter,increasing the risk for infection,so the optimal time duration of using peripheral vein catheter in summer is 72-96 hours.