Challenges in robotic assisted pyeloplasty in a partial duplex system
2020
Abstract Introduction Pelvic-ureteric junction obstruction (PUJO) in a duplex system is an nusual entity that commonly involves the lower moiety [1] , [2] , [3] . The surgical management in such cases may be very challenging due to anatomical issues. We report our experience with robot assisted pyeloplasty in a case of partial duplex system with lower moiety PUJO. Materials and methods A 59-year old woman presented with a recurrent right flank pain of a 3 years duration. Ultrasonography showed hydronephrosis of the right kidney and CT scan revealed a right partial duplex system. A UPJO was confirmed as having originated from the extensive dilated lower moiety of the duplex system. MAG-3 renogram showed a 53% kidney function in the right kidney. We planned a robot assisted laparoscopic pyeloplasty previous to a Contour stent positioning according with the “window technique” [ 4 , 5 ]. Results Total operative time was 167 minutes with a total blood loss of about 20 cc. The post-operative course was uncomplicated and the patient was discharged on postoperative day four. The double J stent was removed six weeks after surgery. The post-operative MAG-3 renogram performed at 4-month from surgery did not show significant modification in terms of kidney function. Conclusions Robotic-assisted pyeloplasty for lower moiety UPJ obstruction in a partial duplex system is feasible, safe and effective. The experience of the surgical equipe and a good preoperative plan are the key to success.
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