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Preoperative characteristics
| No. of patients | 19 |
| Mean age ± (SD) | 56.7 ± (16.0) yrs |
| Mean ASA | 2.4 |
| No. of patients with 2 masses ablated | 2 |
| Mean tumour diameter ± (SD) | 2.6 ± (0.7) cm |
| Distribution of tumours | |
| Lower pole | 37% |
| Interpolar | 37% |
| Upper pole | 26% |
| No. of patients with solitary kidneys | 3 |
SD = standard deviation; ASA = American Society of Anesthesiologists score.
