医学
支架
耐火材料(行星科学)
单中心
中心(范畴论)
外科
泌尿科
天体生物学
化学
物理
结晶学
作者
Yi‐Fan Wu,Te-Yen Chuang,Yi-Horng Lai,Chung‐Cheng Wang
标识
DOI:10.1097/us9.0000000000000009
摘要
Purpose: This study aims to investigate the efficacy and safety of Allium metallic ureteral stents in treating patients with refractory ureteral strictures. Materials and methods: A total of 13 patients with refractory ureteral strictures were prospectively enrolled in the study. After ureteral balloon dilation, an Allium stent was inserted into the ureter through the stricture. Serum blood urea nitrogen and creatinine levels, kidney-ureter-bladder x-ray, and renal ultrasonography reports were evaluated preoperatively, 3 months after the procedure, and at the last outpatient visit. Treatment success was defined as improvement in both renal function and the grade of hydronephrosis. Improvement was defined as the enhancement of renal function without the resolution of hydronephrosis. Adverse events were recorded. Results: The median (interquartile range [IQR]) age of the patients was 63 (46–76) years. The median (IQR) follow-up was 15 (13.5–21) months. Treatment success and improvement were noted in 9 (69.2%) and 3 (23.1%) patients, respectively. Compared with the preoperative levels, the median (IQR) serum creatinine levels were significantly improved at 3 months after the operation (1.6 [1.25–2.85] versus 1.2 [1.05–2.05]; P = 0.02) and at the last visit (1.6 [1.25–2.85] versus 1.2 [1.05–1.8]; P = 0.02). Stent migration and encrustation were noted in 3 (23.1%) and 1 (7.7%) patients, respectively. Conclusion: Allium ureteral stents are safe and effective for patients with refractory ureteral strictures.
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