Laparoscopy + Robotic Surgery

Laparoscopic Pyeloplasty in a case of a crossing vesse

9 stages · 17 October 2026

Laparoscopic pyeloplasty with a crossing vessel is technically more demanding than a straightforward UPJ obstruction. The main challenge is safely dissecting the vessel and choosing the correct reconstruction. During dissection, avoid excessive traction, thermal injury, or inadvertent vessel injury, which can cause significant bleeding or compromise renal perfusion. The new uretero-pelvic junction must be tension-free, dependent, and well vascularized. The reconstructed ureter should generally lie anterior to the crossing vessel when a dismembered transposition repair is indicated In this case, a crossing vessel was present, which was supplying the lower pole (only functional parenchyma), was identified intraoperatively and safely preserved