{'fraction_non_alphanumeric': 0.02570694087403599, 'fraction_numerical': 0.02313624678663239, 'mean_word_length': 5.3478260869565215, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Treatment of ureteral stenosis complicated by endourethral prosthesis. Long-term results].

OBJECTIVE
To evaluate the long-term results obtained in the treatment of urethral stenosis complicated with urethral endoprosthesis.


MATERIAL AND METHODS
Between March 1991 and December 1996, 40 endourethral prosthesis were implanted in 36 patients; 2 prosthesis were placed in 4 patients. Of the 40 prosthesis implanted, 37 were UroLume and 3 Ultraflex. All, with the exception of 2, were patients with recurrent stenosis after earlier failures of prior internal urethrotomy and/or repeat urethral dilations.


RESULTS
Immediate post-operative symptomatic relief was achieved in 97.2% patients. Only one patient required removal of the endoprosthesis. In 4 patients (11.1%) urethral restenosis develop distal or proximal to the endoprosthesis. No patient developed restenosis due to endoprosthetic fibrosis.


CONCLUSIONS
The long-term results obtained in the treatment of bulbar urethral stenosis complicated with endoprosthesis demonstrate the efficacy and stability over time of this technique, which shows a low complications rate when patients are strictly selected.