TREATMENT OF ROUTINE RECURRENT URINARY TRACT INFECTIONS

摘要

Ascent of bacteria is the most common origin of bacteria in UTI. Fecal flora from the patient contaminates the perineum, ascend the urethra, and enter the bladder. Organisms that successfully gain entry into the bladder then have the potential to ascend the ureters, cross the renal pelvic epithelium, and enter renal parenchymal tissue. Vaginal, preputial, and distal urethral flora occasionally are the source of ascending bacteria. Ascending organisms can also come from the environment, including from hospital flora. Introduction of normal flora during catheterization and contamination with fecal or hospital flora also is possible. Migration of bacteria around an indwelling urinary catheter or through the catheter lumen occurs at times.