Table 1 Preoperative demographic data of the patients and characteristics of the renal masses

Age (years)

50.19 ± 13.25 (20–80)

Sex: male/female

29 (56.9%)/22 (43.1%)

Medical disease (DM, HTN, IHD and/or stroke)

25 (49%)

CKD (ml/min/1.73 m²): > 90/60–89/30–59

17 (33.3%)/26 (51%)/8 (15.7%)

Solitary kidney

2 (3.9%)

Side: right/left

30 (58.8%)/21 (41.2%)

Clinical T

 1a

11 (21.6%)

 1b

25 (49%)

 2a

13 (25.5%)

 2b

2 (3.9%)

Position: anterior/posterior/“X”

15 (29.4%)/28 (54.9%)/8 (15.7%)

Hilar position

10 (19.6%)

Renal Pelvic Score: extrarenal/intrarenal

16 (31.4%)/35 (68.6%)

Complexity: low/moderate/high

11 (21.6%)/20 (39.2%)/20 (39.2%)

Modified complexity: low/moderate/high

15 (29.4%)/20 (39.2%)/16 (31.4%)

Indications for PN

 CKD

3 (5.9%)

 Medical disease (HTN + DM)

14 (27.4%)

 CKD + medical disease

4 (7.8%)

 SRM/peripheral mass

24 (47.0%)

 AML with bleeding

3 (5.9%)

 Solitary

1 (2%)

 Bilateral masses

2 (3.9)

BMI (kg/m²)

29.8 ± 5.2 (21–42)

ASA Score

1 (1–2)

Pre-Op eGFR (ml/min/1.73 m²)

84.6 ± 24.5 (40–141)

Pre-Op Hb (gm/dl)

13.2 ± 1.7 (9.1–16.4)

R.E.N.A.L.

9 (4–12)

MNS

12 (6–22)