The use of gianturco self-expanding metallic urethral stent in the field of urology.
- Author:
Sang Bong LEE
1
;
Young Kyung PARK
Author Information
1. Departmet of Urology, Medical School, Chonbuk National University, Chonbuk, Korea.
- Publication Type:Original Article
- Keywords:
Self-expanding;
Urethral stent
- MeSH:
Anesthesia, Local;
Catheters, Indwelling;
Dysuria;
Follow-Up Studies;
Granulation Tissue;
Hematuria;
Humans;
Phenobarbital;
Prostatic Hyperplasia;
Stainless Steel;
Stents*;
Urethra;
Urethral Obstruction;
Urethral Stricture;
Urology*;
Urothelium
- From:Korean Journal of Urology
1993;34(3):494-502
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Self expending metallic stents are emerging as an effective alternative treatment procedure in the management of urethral obstruction. Author described the use of gold coating expandable urethral stents implicated into 13 patients with urinary obstruction due to inoperable benign prostatic hypertrophy (11 cases) and complicated urethral stricture(2 cases) respectively. The stents made of stainless steel in the form of cylindrical zigzag pattern and coated with 24 carat gold, were inserted via delivery device using fluomscopic control under local anesthesia. The treatment was successful in 9 patients. All 9 patients were able to void satisfactorily. The mean peak rate of flow measured with umflometry was 14-24 ml, sec (mean 19.5 ml/sec). In one patient, gross hematuria, frequency and dysuria were so severe that removal of the stent and insertion of an indwelling catheter was done. No sent migration was noted during follow-up. The stente reached 70-80% of their fully expanded diameter immediately on placement. By 1 week after placement 100% expansion was achieved on all cases and maintained for the duration of the study. Luminal narrowings due to overgrowing of granulation tissue were occurred 1 week and 1 month after insertion of the stent in urethral stricture patients. And the luminal narrowings were man-aged with insertion of more complexed and Wall stent. Urethroscopy has demonstrated complete covering of the stent with urothelium at 4 to 6 months. Our experience suggests that placement of Gianturco self-expanding metallic stents may be a useful method of dilating and maintaining the luminal diameter of the prostatic urethra and complicated urethral stricture.
