Jf. Siegel et Ad. Smith, THE IDEAL URETERAL STENT FOR ANTEGRADE AND RETROGRADE ENDOPYELOTOMY -WHAT WOULD IT BE LIKE, Journal of endourology, 7(2), 1993, pp. 151-154
Current endopyelotomy stents are composed of polyurethane, which is an
adequate biomaterial for 6 to 8 weeks of dwell time. It is easy to in
sert, has good internal now, and resists encrustation. Several designs
are available. External designs have the advantage of providing easy
access, while the internal designs appeal to patients because no exter
nal dressing is required. On the basis of our experience, we continue
to advocate the tapering external endopyelotomy stent (14F to 8F) for
6 weeks of postoperative intubation. Although urologic catheters have
progressed, the perfect endopyelotomy stent has yet to be produced.