Efficacy of povidone-iodine intervention to reduce catheter-associated urinary tract infections

OBJECTIVE To explore the efficacy of povidone-iodine as is injected to the urinary tract and its effect on reducing the catheter-associated urinary tract infections.METHODS A total of 196 patients who intended to the indwelling urethral catheter before the surgery were randomly divided into the control group and the study group with 98 cases in each,the urinary catheters were inserted in the control group who received the disinfection of external orifice of urethra and its surrounding skin according to routine aseptic technique protocol,while the test group received the extra-disinfection of the whole urethral using povidone-iodine besides routine aseptic technique protocol before the urinary catheters were inserted.and then the urinary specimens were taken out regularly from two groups respectively for urine routine examination and microbial culture.RESULTS The incidence rates of UTI were 2.27%,7.69% and 22.73%,respectively in the study group on the 5th,7th and 10th day,which were significantly lower than 10.11%,25.49% and 66.67% respectively of the control group,the differences were statistically significant(P0.05);the difference in the incidence rate of urinary tract infections on the 2nd,13th and 16th day was not statistically significant.CONCLUSION The application of the povidone-iodine for disinfection is a simple and valid method to prevent the catheter-associated urinary tract infections in the early stage.