Table 1 Patient and tumor characteristics
From: Long-term outcomes of cryoablation for biopsy-proven T1 stage renal cell carcinoma
Patient characteristics | N(%) | Tumor characteristics | N(%) |
|---|---|---|---|
Age (years) | Maximum tumor diameter (cm) | ||
Mean ± SD | 69 ± 15 | Mean ± SD | 2.9 ± 1.4 |
Range | 37–84 | Range | 1.5–4.9 |
Sex | Tumor histology | ||
Male | 91(56) | Clear cell RCC | 119(73) |
Female | 72(44) | Papillary RCC | 24(15) |
Previous nephrectomy | Chromophobe RCC | 20(12) | |
No | 154(94) | Laterality | |
Yes | 9(6) | Right | 84(51) |
ECOG performance status | Left | 76(47) | |
0 | 118(72) | Bilateral | 3(2) |
1 | 45(28) | Tumor location | |
Comorbidities | Exophytic | 89(54) | |
Hypertension | 95(58) | Parenchymal | 52(32) |
Diabetes | 48(29) | Mixed | 17(11) |
Cardiac disease | 37(23) | Central | 5(3) |
Chronic kidney disease | 33(20) | R.E.N.A.L. score | |
Cryoablation approach | 4–6 | 67(41) | |
LCA | 59(36) | 7–9 | 88(54) |
PCA | 104(64) | 10–12 | 8(5) |
T stage | |||
T1a | 142(87) | ||
T1b | 21(13) |