Abstract Abstract objectives To examine the safety and effectiveness of the use of a stent with a string attached after ureteroscopy (URS) for self-removal of the stent by the patient. Patients and methods After Institutional Review Board approval, a retrospective chart review was performed concerning patients who underwent URS and received an indwelling stent with or without a string attached to the stent (94 vs 349, respectively). Amongst the string group patients received a single- or a double-arm-stringed stent (31 vs 63, respectively). Statistical analyses included chi-squared and Student's t -tests. Results The string group consisted of 94 procedures, in which 59.6% of the patients were male with a mean (SD) age of 50.0 (16.5) years. In the no-string group, 51.3% of the 349 procedures were performed in males and the mean (SD) age was 54.9 (18.1) years. Complication rates were 12.8% in the string group and 14.0% in the no-string group (P = 0.867). In the string group, 17.0% of the patients returned to the Emergency Department, whilst 15.8% of the no-string patients returned (P = 0.753). The complication rate in the single- and double-arm groups were 12.9% and 12.7%, respectively (P > 0.910). Self-removal of stents was successful in 94.7% of patients (89/94). Conclusions The use of a stent with a string after URS appears safe and effective. Few patients had difficulty removing their stents and complication rates were similar in the groups with and without a string attached to their stents. Single- and double-arm-stringed stents have similar complication rates. [ABSTRACT FROM AUTHOR]
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