Table 1 Comparison of clinical and pathologic features by need of resection of IVC
Feature | In total N = 86 | No. of IVC resection N = 42 | IVC resection N = 44 | P value |
|---|---|---|---|---|
Median (IQRs) | ||||
Age, years | 61.0 (53.8–67.3) | 60.5 (53.8–68.0) | 61.0 (53.3–67.0) | 0.383 |
BMI, kg/m2 | 23.1 (21.1–26.1) | 22.0 (19.4–24.3) | 23.9 (22.3–27.7) | 0.001 |
Preoperative SCr, μmol/L | 97.5 (83.5–113.0) | 92.0 (78.3–113.8) | 102.0 (89.0–112.8) | 0.074 |
Tumor diameter, cm | 8.4 (6.9–10.4) | 9.3 (7.1–11.3) | 8.3 (5.8–10.0) | 0.016 |
TT width, cm | 22.0(12.8–27.3) | 21.0 (18.0–25.0) | 24.5 (19.3–28.8) | 0.032 |
N (%) | ||||
Sex | ||||
Male | 61 (70.9) | 26 (61.9) | 35 (79.5) | 0.072 |
Female | 25 (29.1) | 16 (38.1) | 9 (20.5) | |
Side | ||||
Left | 21 (24.4) | 9 (21.4) | 12 (27.3) | 0.528 |
Right | 65 (75.6) | 33 (78.6) | 32 (72.7) | |
ASA score | ||||
1 | 4 (4.7) | 3 (7.1) | 1 (2.3) | 0.113 |
2 | 67 (77.9) | 35 (83.3) | 32 (72.7) | |
3 | 15 (17.4) | 4 (9.5) | 11 (25.0) | |
cN stage | ||||
cN0 | 41 (47.7) | 22 (52.4) | 19 (43.2) | 0.393 |
cN1 | 45 (52.3) | 20 (47.6) | 25 (56.8) | |
cM stage | ||||
cM0 | 58 (67.4) | 25 (59.5) | 33 (75.0) | 0.126 |
cM1 | 28 (32.6) | 17 (40.5) | 11 (25.0) | |
Mayo classification | ||||
1 | 26 (30.2) | 18 (42.9) | 8 (18.2) | 0.048 |
2 | 26 (30.2) | 12 (28.6) | 14 (31.8) | |
3 | 21 (24.4) | 6 (14.3) | 15 (34.1) | |
4 | 13 (15.1) | 6 (14.3) | 7 (15.9) | |
Width of thrombus/width of IVC | ||||
≤ 2/3 | 33 (38.4) | 20 (47.6) | 13 (29.5) | 0.225 |
2/3–1 | 38 (44.2) | 16 (38.1) | 22 (50.0) | |
>1 | 15 (17.4) | 6 (14.3) | 9 (20.5) | |
IVC occlusion | ||||
Yes | 30 (34.9) | 10 (23.8) | 20 (45.5) | 0.035 |
No | 56 (65.1) | 32 (76.2) | 24 (54.5) | |
Pathology type | ||||
Clear cell | 68 (79.1) | 36 (85.7) | 32 (72.7) | 0.139* |
Papillary | 12 (14.0) | 3 (7.1) | 9 (20.5) | |
Chromophobe | 1 (1.2) | 0 | 1 (2.3) | |
Ewing’s sarcoma | 1 (1.2) | 1 (2.4) | 0 | |
Squamous carcinoma | 1 (1.2) | 0 | 1 (2.3) | |
Unclassified | 3 (3.5) | 2 (4.8) | 1 (2.3) | |
Furman’s classification | ||||
1–2 | 29 (33.7) | 15 (35.7) | 14 (31.8) | 0.702 |
3–4 | 57 (66.3) | 27 (64.3) | 30 (68.2) | |