A Novel Visual Grading for Ureteral Encrusted Stent Classification to Help Decide the Endourologic Treatment.
J Endourol
; 35(9): 1314-1319, 2021 Sep.
Article
in En
| MEDLINE
| ID: mdl-33730863
ABSTRACT
Objective:
The aim of the study is to propose a visual classification for encrusted stents (ESs) to help choose the appropriate endourologic treatment. Materials andMethods:
A multicenter, retrospective, and descriptive study was performed. A total of 140 patients with encrusted Double-J stents were enrolled from 5 different institutions. The novel visual grading for ureteral encrusted stent (V-GUES) classification system ranges from A to D, increasing with severity of encrustation.Results:
ESs could be removed with a single intervention in 112 patients (86.8%). Type A and B ESs could be removed in all patients (100% success). Type D stents had minor retrieval and stone-free rates (p = 0.006 and p < 0.0001, respectively). Flexible ureteroscopy had a low success rate (77.7%) for type C stents (odds ratio [OR] 0.21). Combined access had a 100% success rate for retrieval of type C ESs and a 92.9% success rate for type D ESs (OR 9.18). Type D stents were associated with patients requiring more than one session to retrieve the stent (OR 0.11) and stones (OR 0.21).Conclusions:
The V-GUES system is associated with treatment success rates of ES retrieval and stone-free status. It is also associated with the complication rate and the number of sessions needed for patients to be stent and stone free. The V-GUES classification could help counsel patients about the best treatment options and their outcomes. Further prospective studies will be needed to provide external validation.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ureter
/
Nephrostomy, Percutaneous
/
Lithotripsy
/
Ureteral Calculi
Type of study:
Observational_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
J Endourol
Journal subject:
UROLOGIA
Year:
2021
Type:
Article