Research Article
Guy’s Stone Score (GSS) Based on Intravenous Pyelogram (IVP) Findings Predicting Upper Pole Access Percutaneous Nephrolithotomy (PCNL) Outcomes
Table 4
Outcomes of supracostal upper pole access operations (
).
| | | GSS1 | GSS2 | GSS3 | GSS4 | value | | | | |
| | 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 (%) | 5 (83.33)
| 6 (66.66)
| 16 (64.0)
| 14 (34.14)
| <0.01
| | Blood transfusion (%) | 1 (16.67) | 1 (11.11) | 2 (8.00) | 2 (4.88) | 0.41 | | Complications, (%) | | | 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, (%) | 1 (16.67) | 0 (0) | 8 (32.00) | 15 (36.58) | 0.21 |
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