Table 4.
Outcomes of supracostal upper pole access operations (N = 81).
| GSS1 | GSS2 | GSS3 | GSS4 | P value | |
|---|---|---|---|---|---|
| N = 6 | N = 9 | N = 25 | N = 41 | ||
| Operative time (min) | |||||
| Mean (SD) | 50.57 (20.31) | 67 (24.50) | 68.46 (23.00) | 78.71 (35.09) | 0.17 |
| Number of access tracts | |||||
| 1 | 6 (100.00) | 8 (88.89) | 23 (92.00) | 39 (95.12) | 0.68 |
| >1 | 0 (0.00) | 1 (11.11) | 2 (8.00) | 2 (4.88) | |
| Immediate success rate n (%) | 5 (83.33) |
6 (66.66) |
16 (64.0) |
14 (34.14) |
<0.01 |
| Blood transfusion n (%) | 1 (16.67) | 1 (11.11) | 2 (8.00) | 2 (4.88) | 0.41 |
| Complications, n (%) | |||||
| Minor (Clavien 1-2) | 0 (0) | 4 (33.33) | 8 (32.00) | 5 (12.19) | |
| Major (Clavien 3–5) | 0 (0) | 1 (11.11) | 5 (20.00) | 12 (29.20) | 0.03 |
| Sepsis | 0 | 0 | 2 | 4 | |
| Pulmonary complication | 0 | 1 | 1 | 6 | |
| Other | 0 | 0 | 2 | 2 | |
| Auxiliary treatment and re-PCNL, n (%) | 1 (16.67) | 0 (0) | 8 (32.00) | 15 (36.58) | 0.21 |