™ Modern thin ureteroscopes allow direct intubation of the ureteric orifice without prior dilation in most cases. ™ If primary intubation is not possible with reliable forces, stenting and later URS after 7-14 days offers a safe alternative to mechanical dilation. ™ If ureter dilation is necessary, several types such as balloons or plastic bougies are available. However, pre-stenting for 7 days before a second attempt is less traumatic and should be preferred.

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