Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
Copyright © 2024 by the Korean Cancer Association
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Ethical Statement
This study was performed in accordance with the applicable laws and regulations, good clinical practice, and ethical principles described in the Declaration of Helsinki. The Institutional Review Board of the Samsung Medical Center approved this study (IRB No. 2023-10-016). The board waived the requirement for informed consent.
Author Contributions
Conceived and designed the analysis: Lee JH, Sung HH.
Collected the data: Lee JH, Lee CU, Chung JH, Song W, Kang M, Jeon HG, Jeong BC, Seo SI, Jeon SS, Sung HH.
Contributed data or analysis tools: Lee JH, Sung HH.
Performed the analysis: Lee JH, Sung HH.
Wrote the paper: Lee JH, Sung HH.
Conflicts of Interest
Conflict of interest relevant to this article was not reported.
Characteristic | EPI group (n=51) | Control group (n=116) | p-value |
---|---|---|---|
Sex | |||
Male | 38 (74.5) | 77 (66.4) | 0.296 |
Female | 13 (25.5) | 39 (33.6) | |
Age (yr) | |||
< 70 | 29 (56.9) | 65 (56.0) | 0.921 |
≥ 70 | 22 (43.1) | 51 (44.0) | |
ASA classification | |||
Ⅰ | 3 (5.9) | 6 (5.2) | 0.940 |
Ⅱ | 38 (74.5) | 88 (75.9) | |
Ⅲ | 9 (17.6) | 21 (18.1) | |
Ⅳ | 1 (2.0) | 1 (0.9) | |
Tumor side | |||
Right | 17 (33.3) | 57 (49.1) | 0.058 |
Left | 34 (66.7) | 59 (50.9) | |
Tumor grade | |||
Ⅰ | 1 (2.0) | 3 (2.6) | 0.968 |
Ⅱ | 26 (51.0) | 58 (50.0) | |
Ⅲ | 24 (47.1) | 55 (47.4) | |
Tumor location | |||
Ureter only | 25 (49.0) | 49 (42.2) | 0.869 |
Ureter multiple | 1 (2.0) | 3 (2.6) | |
Pelvis only | 23 (45.1) | 58 (50.0) | |
Ureter and pelvis | 2 (3.9) | 6 (5.2) | |
pT category | |||
pTa or pTis | 7 (13.7) | 9 (7.8) | 0.554 |
pT1 | 15 (29.4) | 44 (37.9) | |
pT2 | 10 (19.6) | 22 (19.0) | |
pT3 | 19 (37.3) | 41 (35.3) | |
pN category | |||
Nx, N0 | 48 (94.1) | 111 (95.6) | 0.661 |
N1, N2 | 3 (5.9) | 5 (4.3) | |
LVI | |||
No | 44 (86.3) | 101 (87.1) | 0.889 |
Yes | 7 (13.7) | 15 (12.9) | |
Concomitant CIS | |||
No | 50 (98.0) | 112 (96.6) | > 0.99 |
Yes | 1 (2.0) | 4 (3.4) | |
Bladder cuffing | |||
Intravesical | 44 (86.3) | 79 (68.1) | 0.014 |
Extravesical | 7 (13.7) | 37 (31.9) | |
Preoperative URS | |||
No | 40 (78.4) | 55 (47.4) | < 0.001 |
Yes | 11 (21.6) | 61 (52.6) | |
Adjuvant chemotherapy | |||
No | 32 (62.7) | 82 (70.7) | 0.310 |
Yes | 19 (37.3) | 34 (29.3) |
Variable | Univariate |
Multivariate |
||||
---|---|---|---|---|---|---|
HR | 95% CI | p-value | HR | 95% CI | p-value | |
EPI instillation | 0.48 | 0.23-0.98 | 0.044 | 0.43 | 0.20-0.93 | 0.033 |
Sex | ||||||
Male vs. female | 0.90 | 0.49-1.68 | 0.749 | 0.70 | 0.35-1.40 | 0.311 |
Age (yr) | ||||||
< 70 vs. ≥ 70 | 1.23 | 0.70-2.15 | 0.479 | 1.30 | 0.70-2.43 | 0.407 |
ASA classification | ||||||
Ⅰ Ⅱ vs. Ⅲ Ⅳ | 1.16 | 0.58-2.33 | 0.677 | 0.83 | 0.37-1.84 | 0.643 |
Tumor side | ||||||
Right vs. left | 1.13 | 0.94-2.00 | 0.679 | 1.31 | 0.69-2.49 | 0.404 |
Tumor grade | ||||||
Ⅰ Ⅱ vs. Ⅲ | 0.93 | 0.53-1.63 | 0.794 | 1.11 | 0.56-2.19 | 0.767 |
Presence of ureter tumor | 1.06 | 0.61-1.86 | 0.839 | 0.99 | 0.53-1.86 | 0.985 |
pT category | ||||||
Ta T1 vs. T2 T3 | 1.08 | 0.62-1.91 | 0.783 | 2.05 | 0.89-4.74 | 0.092 |
pN category | ||||||
Nx N0 vs. N1-2 | 0.88 | 0.22-3.64 | 0.865 | 0.81 | 0.18-3.58 | 0.782 |
Lymphovascular invasion | 1.70 | 0.82-3.51 | 0.152 | 2.01 | 0.87-4.66 | 0.104 |
Bladder cuffing | ||||||
Intravesical vs. extravesical | 0.64 | 0.32-1.29 | 0.210 | 0.53 | 0.25-1.12 | 0.098 |
Preoperative ureteroscopy | 1.67 | 0.95-2.93 | 0.075 | 1.42 | 0.79-2.58 | 0.245 |
Adjuvant chemotherapy | 0.46 | 0.23-0.93 | 0.030 | 0.29 | 0.13-0.65 | 0.003 |
Values are presented as number (%). ASA, American Society of Anesthesiologists; CIS, carcinoma
ASA, American Society of Anesthesiologists; CI, confidence interval; EPI, epirubicin; HR, hazard ratio.