Risk Factors for Febrile Urinary Tract Infection after Transurethral Ureterolithotripsy : ANALYSIS of Treatment Outcomes of 1, 235 Patients at a Single Center

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  • 経尿道的腎尿管砕石術における術後有熱性尿路感染症のリスク因子の検討 --単一施設1,235例の後方視的解析--
  • ケイ ニョウドウテキジンニョウカン サイセキジュツ ニ オケル ジュツゴユウネッセイ ニョウロ カンセンショウ ノ リスク インシ ノ ケントウ : タンイツ シセツ 1,235レイ ノ コウホウ シテキ カイセキ

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Abstract

Recently, ureteroscopic lithotripsy remains the standard treatment for urolithiasis, with postoperative febrile upper urinary tract infection (fUTI) being one of its most significant complications. The current study sought to investigate the treatment outcomes of ureterorenoscopy (URS), morbidity and risk factors of postoperative fUTI at our hospital. A total of 1, 235 patients who underwent URS (including those who underwent only semi-rigid URS) for upper urinary tract stones at our hospital between October 2011 and December 2019 were retrospectively analyzed. Patients had a median age of 63 years and a median stone length of 11.4 mm. F-URS was performed in 1, 188 cases (96.2%) among whom 92.1% were stone-free or had stones that fractured into dust. Postoperative fUTI and sepsis occurred in 127 (10.3%) and 18 (1.5%) patients, respectively. Multivariate analysis identified female sex, American Society of Anesthesiologists (ASA) score ≥ 3, calculus length ≥ 20 mm, history of diabetes mellitus, and history of obstructive pyelonephritis as risk factors for postoperative fUTI. The scoring system (range 0-4) were positively correlated with the postoperative fUTI rate (score 0 : 3.1%, 1 : 12.4%, 2 : 14.1%, 3 : 23.7%, 4 : 40%). A significant difference in the rates was noted between those with a score of 0 (low-risk group), 1-2 (intermediate-risk group), and 3-4 scores (high-risk group). In conclusion, the overall incidence of postoperative fUTI was 10.3%, which was associated with sex, poor ASA scores, stone size, presence of diabetes mellitus, and history of pyelonephritis. The scoring system created using these factors can be useful in predicting postoperative fUTI.

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  • 泌尿器科紀要

    泌尿器科紀要 68 (6), 171-178, 2022-06-30

    泌尿器科紀要刊行会

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