Endourology & Stone Disease(구연) (E-172) 요관 부목 교환 수술이 정말로 안전하고 쉬운 수술인가? 단일 기관에서 장기간 요관 부목을 거치하는 환자들에서 관찰 가능한 임상 결과 ; 장기간 요관 부목 설치 환자에 대한 관찰 연구 가톨릭대학교 의정부성모병원 비뇨기과학 교실,건국대학교 충주병원 김은재, 최우석, 박봉희, 정홍, 이용석, 한창희, 배상락 Objectives : The purpose of this study is to examine the clinical aspects of patients undergoing ureteral stents and to perform repeated replacements for a long time and to investigate possible side effects. Materials and Methods : From March 2014 to June 2020, clinical results were retrospectively analyzed for patients who had undergone ureteral stent for 6 months or longer and had at least one replacement. Patients underwent ureteral splint replacement approximately every 3 months from the date of first ureteral splint via percutaneous or endoscopy, and the patient was tested for urine in renal pelvis during the procedure and cultured. The medical records of all patients confirmed the underlying disease, type of splint, length and thickness, and whether complications including urinary tract infection occurred. Results : During the period, a total of 52 patients underwent ureteral stent replacement for more than 6 months, and at least one ureteral stent replacement was performed. A total of 32 patients had ureteral stents inserted as a symptom of a tumor caused by urogynecologic malignancy, and 20 patients had ureteral stents due to tuberculosis including multiple stenosis and urinary tract infection. The mean age was 66.1 years old, 43 females and 9 males. Patients had stent for an average of 1071 days. There were 16 cases on both, 21 cases on left, and 15 cases on right. UTI occurred in 28 cases (54%) during the follow-up period. In 13 cases the patient was febrile UTI, which has been 8 cases of hospitalized two or more times, five patients have been in progress to sepsis were used inotripics. Severe complications included 6 cases including sepsis, 5 cases of sepsis from infection, 1 case of death due to sepsis, and 1 case of shock due to ureteral aortic fistula formation. Sepsis has been restored by conservative treatment such as antibiotics, and shock patients following the ureter-aortic fistula are undergoing follow-up after an intravascular stent procedure. Conclusion : Urinary ureter replacement is a relatively common surgery in urology. However, it can cause a variety of complications, , including uretero-aortic fistula, infection-related complications, sepsis, and pain, the period of indwelling must be kept to a minimum, and even inevitably, special attention is required. keywords : ureteral stent, complication, UTI