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. 2021 Jul 14;13(3):226–231. doi: 10.4103/UA.UA_10_20

Table 5.

Comparison with other studies

Variable Sabnis et al.[15] Knoll et al.[11] Lee et al.[19] Pan et al.[18] Our study





Mini-PCNL RIRS Mini-PCNL RIRS Mini-PCNL RIRS Mini-PCNL RIRS Mini-PCNL RIRS P
Renal units 32 32 25 21 35 33 59 56 40 40
Age (years) 44.48 49.28 56 53 59.3 55.8 49.32 49.37 35.6 40.45 0.447
Sex (male:female) 19:13 25:7 15:10 9:12 28:7 28:5 37:22 36:20 25:15 32:8 0.069
BMI - - 27 31 23.52 23.69 23 25.09
Stone size (cm) 1.52 1.42 18 19 39.1 28.9 22.37 22.28 12.35 12.9 0.449
OT time (min) 40.81 50.63 59 106 76.1 99.6 62.39 73.07 51.58 69.75 0.003
Fluoroscopy time (s) - - - - 56.78 40.20 0.012
Intraoperative comp 1 0 1 1 2 0
Postoperative comp 1 3 3 4 7 9 9 16
Pain POD1 2.74 2 - - 2.7 3.1 4.45 3.20 0.005
Pain POD2 1.9 1.22 - - 2.70 1.05 <0.001
Hb drop 1.43 0.40 - - 0.69 0.38 0.128 0.04 0.88 0.42 <0.001
Hospital stay 2.07 1.94 - - 1.6 1.5 4.47 1.95 2.85 2.45 0.155
SFR (%) - POD1 - - 96 71.5 77.5 45 0.003
1 month 100 96.88 100 85.8 96.6 71.4 90 85 0.615
3 months - - - - 92.5 87.5 0.338
Second surgery 0 1 - - 3 5
DJ stent removal 23 19 33 33 6 35
QOL Same Same

Mini-PCNL: Minimally invasive percutaneous nephrolithotomy, RIRS: Retrograde intrarenal surgery, BMI: Body mass index, POD: Postoperative day, Hb: Hemoglobin, QOL: Quality of life, DJ: Double J, OT- Operative Time.Lee et al [17], SFR: Stone-free rate