Table 1.
Characteristics of patients and tumors for percutaneous cryoablation
| Patient characteristics | Result |
|---|---|
| Patients (n) | 18 |
| Mean age (range) | 62 (41–89) |
| Sex (n male/female) | 12/6 |
| Body mass index (kg/m2) | 22.2 ± 3.7 |
| The combined surgical risk factors: | |
| Receiving treatment for other cancers | 3 |
| Age >85 years old and refusal of surgery | 4 |
| Hemophilia | 1 |
| Coronary heart disease | 6 |
| End-stage renal disease receiving hemodialysis | 2 |
| Dilated cardiomyopathy with heart failure | 2 |
| Mean follow-up (range), months | 26.8 (12–56) |
| Mean tumor size (range), cm | 3.3 (1.4–4.6) |
| Tumor location (right/left) | 10/8 |
| Pathology: | |
| Clear cell RCC | 14 |
| Papillary RCC | 3 |
| Chromophobe RCC | 1 |
| Operative time (min) | 67 ± 18 |
| Complication | |
| Nausea | 3 |
| Pain | 4 |
| Subcapsular hemorrhage | 1 |
| Retroperitoneal errhysis | 1 |