Ho-YAG-laser radiation with wave length 2.09 microns is a perspective line in high-energy laser treatment of urinary diseases. The authors have performed 24 operations in 23 patients with ureteral strictures. The antegrade approach was used in 11 patients while the retrograde one in 12 cases. Primary or secondary strictures occurred in 8 and 15 patients, respectively. Dissection and ablation of the scar tissues were conducted in 15 patients with secondary strictures. Cut of the stricture only was made in 8 patients with primary strictures. Ho-YAG-laser endoscopic treatment of secondary and primary ureteral strictures reached 93.3%(14 patients) and 75%(6 patients), respectively. Overall efficacy was 88.2%(20 patients). Ho-YAG-laser endopyeloplasty promoted quicker recovery of urodynamic and functional parameters of the upper urinary tract.
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