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IntroductionThe rapid development and invention of ever more technologically advanced ureterorenoscopes as well as other instruments used in fragmenting ureteral stones have made the traditional surgical treatment of ureterolithiasis very rare.Material and methodsWe investigated 727 patients treated for ureterolithiasis. 769 ureteroscopic lithotripsies (URSL) with the holmium laser were performed. We evaluated the relation of the stone size, the section of the ureter involved, length of time of the stone within the ureter and the condition of the urinary tract to the results of the ureterolithiasis treatment.ResultsA good result of breaking up the stone and passing its fragments out of the ureter within 3 months following the first URSL was observed in 642 (90.9%) out of 706 patients. The remaining 64 (9.1%) patients required additional procedures: ESWL was performed on 44 patients; URSL was repeated for 20 patients. The most serious early post-URSL complications involved: urinary tract infection with symptoms of urosepsis in 10 patients, leading to death in 1 case, ureteral perforation in 3 patients, including 1 case presenting a periureteral leak that necessitated a surgical intervention.ConclusionsURSL with the holmium laser is an effective and safe method for treating ureterolithiasis.

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312Foreign bodies in the bladder are quite common disorders of the lower urinary tract. Most of them originate from various surgical procedures but rarely are a consequence of transurethral selfinsertion, as a result of sexual curiosity or autoerotic stimulation. From 2006 to 2015, in our center the prevalence of this condition was 0.05%, but only six (0.02%) of the cases were due to sexual curiosity. Transurethral endoscopic procedures as well as open or laparoscopic, or single-port techniques, have been successfully applied to remove bladder foreign bodies. We present the case of using the transvesical laparoendoscopic single-port surgery (T-LESS) for removal of an unusual metallic foreign body. In October 2015, we carried out the T-LESS access on a 45-year old man to remove an erotic urethral device with a long metallic cable that migrated into and spontaneously knotted in the bladder. The procedure was performed transvesically (percutaneous intraluminal approach) with a single-port device (Tri-Port+, Olympus, Germany) via a 1.2-cm incision made 2 cm above the pubic symphysis. A standard 10-mm optic and straight laparoscopic instruments were used. The metallic device and metallic wire were removed intact through the