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Table 2 Perioperative outcomes according to preoperative ureteral stenting

From: The effect of preoperative ureteral stenting in retrograde Intrarenal surgery: a multicenter, propensity score-matched study

 

After propensity score-matching

Variables

Non-stented group

(n = 339)

Preoperatively stented group

(n = 113)

p-value

Operative time (min)

70.2 ± 53.0

65.1 ± 47.4

0.452

Access sheath placement

297 (87.6%)

106 (93.8%)

0.038

Access sheath size (Fr)

  

0.223

 11/13

147 (49.5%)

49 (46.2%)

 

 12/14

150 (50.5%)

56 (52.8%)

 

 14/16

0 (0.0%)

1 (0.9%)

 

Stone-free rate (0 mm)

282 (83.2%)

97 (85.8%)

0.498

Clinically insignificant residual fragments (<  4 mm)

315 (92.9%)

103 (91.2%)

0.806

Hospitalization period (days)

1.4 ± 1.7

1.3 ± 0.7

0.279

Additional treatment

11 (3.2%)

6 (5.3%)

0.421