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MINERVA UROLOGICA E NEFROLOGICA
A Journal on Nephrology and Urology
Indexed/Abstracted in: EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,536
Minerva Urologica e Nefrologica 2000 December;52(4):195-9
language: English, Italian
Use of small calibre JJ ureteral stent with anti-reflux valve in uretero-vesical anastomosis during renal transplantation
Lasaponara F., Catti M., Morabito F., Volpe A., Manassero F., Ferrando U.
From the Dipartimento di Nefro-Urologia, UOA Urologia, Ospedale San Giovanni Battista - Torino (Dirigente Medico I livello Dott. Ugo Ferrando)
Background. We report our experience in transplantation proceedings with the use of small caliber JJ ureteral stent with antireflux valve during uretero-vesical anastomosis.
Methods. During renal transplantations we usually perform an uretero-cystoneostomy with antireflux technique according to Lich Gregoir. In the past we used to intubate the uretero-vesical anastomosis only in particular cases; since April 1998 we performed 112 single and 8 double transplants and in all cases we positioned a 12 cm long paediatric 4.8 Ch JJ ureteral stent with antireflux valve, in order to reduce urologic complications. The vesical catheter was usually removed in 6º-7º day and the ureteral stent 40-60 days after transplantation.
Results. We have performed 129 uretero-vesical anastomoses and we complained only one case of early dehiscence of the anastomosis (unilateral in a double transplant) and two cases of late stents’ displacement. We noticed no stenosis of the anastomosis and no dysfunction in urine outflow from the upper urinary ways.
Conclusions. The routinary use of paediatric JJ ureteral stents with antireflux valve was decisive in drastically reducing early urologic complications after renal transplantation. Furthermore, the risk of vesico-ureteral reflux is almost completely reduced, thanks to the technique adopted for the anastomosis which allows a physiologic-like antireflux mechanism, to the presence of the antireflux valve and to the early recovery of the physiologic ureteral peristalsis, which is promoted by the small calibre of the stent. These factors lead to a faster recovery of the renal function, with excellent results from the nephrologic and urologic points of view.