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What ' s known on the subject? and What does the study add? New techniques and instrumentation in laparoscopy including the use of ' single-port ' devices and natural orifi ce transluminal endoscopic surgery have been proposed to reduce the invasiveness of these procedures. The introduction of small laparoscopic instruments ( < 3 mm) continues to further the fi eld. To date, mini-laparoscopic instruments have been used in many urological procedures, e.g. pyeloplasty in the paediatric population. However, data of pure mini-laparoscopic pyeloplasty (mLP) for the treatment of pelvi-ureteric junction obstruction in the adult population are lacking.In a selected adult population mLP is feasible and safe. Perioperative and 1-year functional results are comparable with those of standard LP, while cosmetic results of mLP are more appreciated by the patients.

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Up to the present laparoscopic surgery is the best approach for GN treatment.

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Introduction: The Lithocatch TM basket is a immobilization device commercialized by Boston Scientific. It allows to collect multiple stone fragments from the ureter. The ability of the basket to capture a large number of stone fragments, is however responsible for a problem connected to its usage: the entrapment of the basket inside the ureter. In this video we explain how to use it and how to solve this problem. Material and Methods: After positioning the Lithocatch TM over the fragments, the basket is opened and it is rotated through a special handle to collect stones. One frequent problem occurs when too many fragments are collected at once, preventing the extraction of the device. We research our archives to extrapolate the total number of procedures carried out with the Lithocatch TM in the last two years and the total number of complications occurred. Results: We experienced the above mentioned complication in 16 procedures (14% of the total) of 114 surgeries performed. The way described to solve this complication was efficient and did not produce any damage to the ureter or to the basket. Conclusion: The Lithocatch TM has an excellent ability to capture small stones so it allows to reduce the length of the procedure. Paying attention to limit the amount of fragments collected, it is possible to avoid the entrapment of the basket. If this complication occurs, the problem can be solved by reducing the size of the stone fragments. The preferable type of energy is the ballistic one.

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