Novel Everting Urologic Access Sheath: Decreased Axial Forces during Insertion

Abstract

This novel introduction sheath markedly decreased the axial forces applied to an artificial urethral luminal wall. It is possible that the clinical use of this technology will decrease the discomfort and potential complications associated with lower urinary-tract endoscopy.

Minimally invasive treatment of urethral strictures in men

“…To improve urethral dilation with a coaxial system, a novel urethral access sheath that dispenses a protective fluorocarbon film during introduction has decreased axial forces in an experimental model (Cystoglide; Percutaneous Systems, Mountain View, CA) [15]. To further improve this process, single-use S-shaped dilators with hydrophilic coating were shaped like the normal male urethra to permit smooth advancement proximally [16].…”

“…A urethral catheter was left indwelling for 3-6 weeks. Of the 17 patients who were followed for 20 months (range, [14][15][16][17][18][19][20][21][22][23][24][25][26][27], two required repeat dilation or OIU/DVIU for stricture recurrence and four patients had complications of fever, transient incontinence, urinary extravasation, and acute epididymitis. Olschewski et al [32] reported experience with high-dose-rate (HDR) brachytherapy with iridium-192 in 10 men with strictures.…”

“…A urethral catheter was left indwelling for 1 week. Of the 10 patients followed for a mean of 14.8 months (range, [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], two required repeat OIU/DVIU for stricture recurrence with one subsequently requiring open urethroplasty. Like the small series reported by Sun et al [31], the results were not reported according to stricture location, stricture etiology, or other defining characteristics, except for length, making interpretation of the results very problematic.…”