ObjectiveTo assess efficacy, comfort, & symptoms of a novel ureteral stent (RELIEF) substituting the distal semirigid coil of a traditional double-J (DJ) for a floating, monofilament tether allowing coaptation of the ureteral orifice. Ureteral instrumentation notoriously cause discomfort, urgency, frequency, dysuria & hematuria; prolonged morbidity is likely related to stent-associated vesicoureteral reflux (VUR). We hypothesized this design would eliminate VUR, be safe & provide comfort following intervention. Methods28 patients within a single institution were enrolled. Passive cystography was performed pre- & post-stent placement assessing VUR. Patients completed Ureteric Stent Symptoms Questionnaires (USSQ) before placement (baseline), post-op day 1, & day of removal. Results20 RELIEF stents were placed (11 female and 9 male). 95% demonstrated no VUR following placement. No unexpected adverse complications occurred; 1 patient opted for early stent removal for significant discomfort. Average total USSQ scores demonstrated statistically significant improvement between first and third surveys (p<0.001). Statistically significant improvement in body pain, general health & work performance scores were noted as well (p<0.05). ConclusionsThe RELIEF stent eliminates VUR with similar stent-related morbidity and overall well-tolerance. RELIEF associated USSQ scores were below published mean symptom scores for standard DJ stents and appear safe in this preliminary clinical trial.
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