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  • Title: Percutaneous nephrostomy versus ureteral stents for diversion of hydronephrosis caused by stones: a prospective, randomized clinical trial.
    Author: Mokhmalji H, Braun PM, Martinez Portillo FJ, Siegsmund M, Alken P, Köhrmann KU.
    Journal: J Urol; 2001 Apr; 165(4):1088-92. PubMed ID: 11257644.
    Abstract:
    PURPOSE: Urinary diversion with percutaneous nephrostomy or ureteral stent is indicated by symptoms, such as persistent colic, high temperature and uremia, of hydronephrosis caused by stones. We evaluate which of these 2 methods is superior concerning the course of procedure, relief of accompanying symptoms and quality of life in regard to patient age and sex. MATERIALS AND METHODS: A total of 40 patients with stone induced hydronephrosis were randomized into either percutaneous nephrostomy or stent insertion groups. These patients were then evaluated by procedure (use of analgesics, x-ray exposure, success of insertion), relief of accompanying symptoms (duration of diversion, intravenous administration of antibiotics for high temperature) and quality of life (questionnaire immediately and 2 to 4 weeks postoperatively). RESULTS: Two comparable groups of patients were formed, with an average age of 55 versus 49 years and a male-to-female ratio of 12:8 versus 9:11 for those who underwent percutaneous nephrostomy versus those who received a stent, respectively. Percutaneous nephrostomy was successfully completed in 100% of patients and stents were successful in 80%, with a 20% conversion to percutaneous nephrostomy. The x-ray exposure was shorter in the percutaneous nephrostomy group (p = 0.052). Administration of analgesics was more frequent in the stent group (p = 0.061). Percutaneous nephrostomy indwelling time was shorter (50% less than 2 weeks) than that of stents (25% less than 2 weeks, p = 0.043). Antibiotics were administered for greater than 5 days in 0% of patients who underwent percutaneous nephrostomy versus 64% in those with stents (p = 0.174). Reduction in quality of life was moderate but more pronounced in patients with stents compared to those who underwent percutaneous nephrostomy, and was more distinct in males and younger patients. The quality of life progressively improved in the course of diversion with percutaneous nephrostomy but deteriorated with stents. CONCLUSIONS: Our results demonstrated that percutaneous nephrostomy is superior to ureteral stents for diversion of hydronephrosis caused by stones, especially in patients with a high temperature, as well as in males and juveniles.
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