Table 2 Surgical outcomes of patients with Urexel™ according to ureter units

Number of stents, n (%)

 1

6 (46.2)

 2

7 (53.8)

Length of the stent-indwelled segment, n (%)

 6 cm

4 (30.8)

 8 cm

4 (30.8)

 14 cm

1 (7.7)

 16 cm

11 (84.6)

Balloon dilation before stent insertion, n (%)

5 (38.5)

Stent placed across the ureterovesical junction, n (%)

12 (92.3)

Postoperative creatinine, mg/dL (range)^*

 Postoperative 1-month creatinine

0.69 (0.57–1.48)

 Postoperative 3-month creatinine

0.77 (0.48–4.14)

Postoperative eGFR, mL/min/1.73m²(range)^*

 Postoperative 1-month eGFR

96.4 (40.7-112.4)

 Postoperative 3-month eGFR

89.4 (10.4-122.2)

Success rate, %^*

 6-month success rate

83.3

 1-year success rate

70

 2-year success rate

44.4

Reason for failure, n (%)

 Migration & encrustation

2 (15.4)

 Encrustation

2 (15.4)

 Migration

1 (7.7)

 Hyperplasia

1 (7.7)