Table 3 Renal mass complexity according to R.E.N.A.L. NS in relation to outcome parameters
From: Modified R.E.N.A.L nephrometry score for predicting the outcome following partial nephrectomy
Complexity level according to R.E.N.A.L. | p | |||
|---|---|---|---|---|
Low (4–6) 11 patients | Moderate (7–9) 20 patients | High (10–12) 20 patients | ||
Age (years) | 48.1 ± 13.1 (20–59) | 50.3 ± 10.1 (34–65) | 51.1 ± 16.2 (20–80) | .861 |
BMI (kg/m2) | 32 ± 6.7 (22–42) | 28.5 ± 4.3 (22–36) | 29.6 ± 4.9 (21–39) | .117 |
ASA Score | 1 (1–2) | 1 (1–2) | 2 (1–2) | .441 |
Pre-Op eGFR (ml/min/1.73m2) | 86.1 ± 20.9 (55–141) | 76.9 ± 18.6 (43–126) | 91 ± 30 (40–140) | .183 |
Pre-Op Hb (gm/dl) | 14.1 ± 1.05 (13–15.9) | 13.2 ± 1.8 (10.5–16.4) | 12.6 ± 1.7 (9.1–15.5) | .064 |
Sex: male/female | 7 (63.6%)/4 (36.4%) | 13 (65%)/7 (35%) | 9/(45%)/11 (55%) | .388 |
Side: right/left | 8 (72.7%)/3 (27.3%) | 12 (60%)/8 (40%) | 10 (50%)/10 (50%) | .465 |
CKD (ml/min/1.73m2) | .104 | |||
> 90 | 4/11 (36.4%) | 3/20 (15%) | 10/20 (50%) | |
60–89 | 6/11 (54.5%) | 14/20 (70%) | 6/20 (30%) | |
30–59 | 1/11 (9.1%) | 3/20 (15%) | 4/20 (20%) | |
Clinical T | .095 | |||
T1 | 10/11 (90.9%) | 15/20 (75%) | 11/20 (55%) | |
T2 | 1/11 (9.1%) | 5/20 (25%) | 9/20 (45%) | |
OR time (h) | 2.6 ± 0.57 (1.7–3.5) | 3.1 ± 0.78 (2–5) | 3.03 ± 0.65 (2–4.5) | .174 |
WIT (min) | 14 (0–20) | 15 (0–30) | 19 (0–40) | .343 |
LOS (days) | 4 (3–9) | 5 (4–29) | 5 (4–11) | .109 |
Hb loss (gm/dl) | 1 (0.4–3.5) | 1 (0.2–3.7) | 1 (0.1–5.3) | .788 |
Blood loss (ml) | 150 (50–1500) | 300 (100–900) | 300 (50–1100) | .272 |
Ischemia type | .251 | |||
Warm ischemia | 7/11 (63.6%) | 18/20 (90%) | 15/20 (75%) | |
No ischemia | 4/11 (36.4%) | 2/20 (10%) | 5/20 (25%) | |
Hilar position | 0/11 | 3/20 (5.9%) | 7/20 (13.7%) | .053 |
RPS | ||||
Intrarenal/extrarenal | 7 (63.6%)/4 (36.4%) | 14 (70%)/6 (30%) | 14 (70%)/6 (30%) | .922 |
PCS entry | 5/11 (45.5%) | 8/20 (40%) | 13/20 (65%) | .263 |
Post-Op Hb (gm/dl) | 12.6 ± 1.5 (10 - 14.3) | 11.9 ± 1.6 (9 - 15.8) | 11.3 ± 2 (7.1–15) | .148 |
Total complications | 2/11 (18.2%) | 9/20 (52.9%) | 6/20 (30%) | .292 |
Secondary intervention | 2/11 (18.2%) | 7/20 (35%) | 1/20 (5%) | .039* |
VC | 1/11 (9.1%) | 2/20 (10%) | 1/20 (5%) | 1 |
Ureteric injury | 0/11 | 2/20 (10%) | 0/20 | .341 |
Blood transfusion | 2/11 (18.2%) | 3/20 (15%) | 4/20 (20%) | 1 |
Leakage | 0/11 | 5/20 (25%) | 1/20 (5%) | .124 |
Drain removal (d) | 4 (3–8) | 4.5 (3–28) | 5 (4–7) | .243 |
Conversion to RN | 1/11 (9.1%) | 1/20 (5%) | 2/20 (10%) | 1 |
RF impairment | 1/11 (9.1%) | 2/20 (10%) | 3/20 (11.8%) | 1 |
Positive margin | 0/11 | 1/20 (5%) | 2/20 (10%) | .789 |
Post-Op eGFR 3mo (ml/min/1.73m2) | 78.6 ± 17.5 (60–114.3) | 74.8 ± 19.3 (32–117) | 80.1 ± 27 (21.8–130) | .750 |