Résumé
Urinary tract infection is one of the most common nosocomial infections that mainly occurs after instrumentation in urinary tract, particularly after urinary catheterization. This clinical trail was conducted to assess disinfection effects of the meatus and urinary catheter on incidence of CAUTI in hospitalized patients of neurological unit of Shohadaye Tajrish hospital. 70 stroke patients [Ischemic or Hemorrhagic] catheterized by urologic experts were selected by convenience sampling and randomly divided into two groups [experimental group: 35 patients, control group: 35 patients]. At first, one urine sample of all subjects was obtained aseptically and sent to lab for culture. After 24 hours, if initial result of culture was negative, the study would be followed up. In the experimental group, the meatus and catheter drainage tube junction were disinfected daily and the spigot was disinifected two times a day by PVP1O% ointment. In the control group, normal saline was used. It is necessary to explain that in the study group, residual of ointment was washed by saline and then disinfected by PVP daily. In the two groups, the meatus, catheter drainage tube junction and the spigot were covered by a layer of sterile gauze. In days 2,8,11 and 14, a urine sample was sent to lab for culture. Data were gathered by a form, NIHS scale, and urine culture medium. Incidences of CAUTI in experimental and control groups were 20% and 42.9% respectively. Relative risk was 2.14; thus, disinfection by PVP could decrease the incidence of CAUTI. The most common microorganism was e-coli [experimental group: 40%, control group: 57.1%]. Clinical symptoms of UTI were observed 28.6% in the experimental group and 33.3% in the control group. In this study, the relation between UTI and severity of disease was significant [experimental group: P=0.028, control group: P=0.048]. The relation between UTI and length of catheterization was also significant [experimental group: P=0.022, control group: P=0.047]. : It seems that necessaiy precautions should be taken to prevent infections especially at hospitals