The Journal of urology · 1997
The use of metallic stents to bypass ureteral strictures secondary to metastatic prostate cancer: experience with 8 patients.
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López-Martínez R A, Singireddy S, Lang E K
Аннотация
PURPOSE: We evaluated the middle term patency, incidence of infection and ability to preserve renal function using metallic stents to bypass ureteral obstruction secondary to metastatic prostate adenocarcinoma.
MATERIALS AND METHODS: We studied 8 patients with ureteral obstruction secondary to metastatic prostate adenocarcinoma at the pelvic ureter with up to 48 months of followup. Metallic Wallstents* 8 mm. in diameter and 64 mm. long were placed across the stricture after preliminary dilation with a high pressure balloon. Double-J catheters were left in all patients for at least 1 month or until mucosal edema had subsided. All stents were placed via an antegrade approach.
RESULTS: Average duration of stent patency was 19 months. All 6 patients at risk at 12 months had patent stents compared to 3 of 5 at 24 months, 2 of 2 at 36 months, and 1 of 1 at 48 months. Stent occlusion occurred in 2 patients at 8 and 12 months, respectively, and additional stents were placed telescopically to achieve recanalization. Renal function was preserved in all patients. Two patients died of disease at 1 month and 1 at 26 months after stent placement.
CONCLUSIONS: The use of metallic stents to bypass malignant ureteral obstruction is a safe and effective method.
MATERIALS AND METHODS: We studied 8 patients with ureteral obstruction secondary to metastatic prostate adenocarcinoma at the pelvic ureter with up to 48 months of followup. Metallic Wallstents* 8 mm. in diameter and 64 mm. long were placed across the stricture after preliminary dilation with a high pressure balloon. Double-J catheters were left in all patients for at least 1 month or until mucosal edema had subsided. All stents were placed via an antegrade approach.
RESULTS: Average duration of stent patency was 19 months. All 6 patients at risk at 12 months had patent stents compared to 3 of 5 at 24 months, 2 of 2 at 36 months, and 1 of 1 at 48 months. Stent occlusion occurred in 2 patients at 8 and 12 months, respectively, and additional stents were placed telescopically to achieve recanalization. Renal function was preserved in all patients. Two patients died of disease at 1 month and 1 at 26 months after stent placement.
CONCLUSIONS: The use of metallic stents to bypass malignant ureteral obstruction is a safe and effective method.