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Table 4 Renal mass complexity according to newly modified score in relation to outcome parameters

From: Modified R.E.N.A.L nephrometry score for predicting the outcome following partial nephrectomy

 

Complexity according to MNS

p

Low (5–9)

15 patient

Moderate (10–14)

20 patient

High (15–23)

16 patient

Age (years)

49.3 ± 12.3 (20–63)

51.9 ± 13.7 (30–80)

48.8 ± 13.9 (20–65)

.941

BMI (kg/m2)

31.4 ± 6.2 (22–42)

27.3 ± 4.1 (21–36)

31.4 ± 4.5 (25–39)

.022*

ASA Score

1 (1–2)

1 (1–2)

2 (1–2)

.404

Pre-Op eGFR (ml/min/1.73m2)

84.9 ± 18.7 (55–141)

81.7 ± 25.3 (43–130)

87.3 ± 29.1 (40–140)

.788

Pre-Op Hb (gm/dl)

14 ± 1.3 (11.4–16.4)

12.7 ± 1.9 (9.1–15.8)

13 ± 1.5 (10.1–15.6)

.091

Sex: male/female

8 (53.3%)/7 (46.7%)

11 (55%)/9 (45%)

10 (56.9%)/6 (37.5%)

.856

Side: right/left

11 (73.3%)/4 (26.7%)

8 (40%)/12 (60%)

11 (68.8%)/5 (31.3%)

.087

CKD (ml/min/1.73m2)

   

.583

  > 90

5/15 (33.3%)

5/20 (25%)

7/16 (43.8%)

 60–89

9/15 (60%)

11/20 (55%)

6/16 (37.5%)

 30–59

1/15 (6.7%)

4/20 (20%)

3/16 (18.8%)

Clinical T

   

.216

 T1

13/15 (86.7%)

14/20 (70%)

9/16 (56.2%)

 T2

2/15 (13.3%)

6/20 (30%)

7/16 (43.8%)

OR time (h)

2.7 ± 0.67 (1.7–4.25)

3 ± 0.79 (2–5)

3.1 ± 0.57 (2.25–4)

.153

WIT (min)

14 (0–20)

18.5 (0–40)

16.5 (0–27)

.070

LOS (day)

4 (3–9)

5 (4–29)

5 (4–14)

.077

Hb loss (gm/dl)

1 (0.2–3.5)

1 (0.10–3.7)

1 (0.1–5.3)

.937

Blood loss (ml)

150 (50–1500)

275 (50–900)

475 (50–1100)

.081

Ischemia type

   

.317

 Warm ischemia

11/15 (73.3%)

18/20 (90%)

11/16 (68.8%)

 No ischemia

4/15 (26.7%)

2/20 (10%)

5/16 (31.2%)

Hilar position

0/10

0/10

10/10 (100%)

<.001*

RPS

   

.049*

 Intrarenal/extrarenal

7 (46.7%)/8 (53.3%)

14 (70%)/6 (30%)

14 (87.5%)/2 (12.5%)

PCS entry

5/15 (33.3%)

11/20 (55%)

10/16 (62.5%)

.241

Post-Op Hb (gm/dl)

12.7 ± 1.5 (10–15.8)

11.4 ± 1.8 (7.1–14.5)

11.5 ± 1.7 (8.6–15)

.074

Total complications

2/15 (13.3%)

6/20 (30%)

9/16 (56.3%)

.037*

Secondary intervention

2/15 (13.3%)

5/20 (25%)

3/16 (18.8%)

.757

VC

1/15 (6.7%)

2/20 (10%)

1/16 (6.3%)

1

Ureteric injury

0/15

1/20 (5%)

1/16 (6.3%)

1

Blood Transfusion

2/15 (13.3%)

2/20 (10%)

5/16 (31.3%)

.269

Leakage

0/15

4/20 (20%)

2/16 (12.5%)

.255

Drain removal (d)

4 (3–8)

4.5 (4–28)

5 (3–14)

.200

Conversion to RN

1/15 (6.7%)

1/20 (5%)

2/16 (12.5%)

.818

RF impairment

1/15 (6.7%)

2/20 (10%)

3/16 (18.8%)

.647

Positive margin

0/15

0/20

3/16 (18.8%)

.049*

Post-Op eGFR 3mo (ml/min/1.73m2)

79.6 ± 15.4 (60–114)

78.3 ± 23.1 (27–117)

75.3 ± 26.7 (21.8–130)

.856

  1. Values are presented as mean ± SD (range), Median (range) or number of patients (%) as appropriate
  2. AML angiomyolipoma, ASA American society of anesthesiology, BMI body mass index, CKD chronic kidney disease, eGFR estimated glomerular filtration rate, Hb hemoglobin, LOS length of hospital stay, MNS newly modified nephrometry score, OR operative, PCS pelvi-calyceal system, Post-Op postoperative, Pre-Op preoperative, RF renal function, RN radical nephrectomy, RPS renal pelvic score, VC vascular complications, WIT warm ischemia time
  3. *Significant