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Malignant hilar obstruction-1 stent or 2
| Group A | Group B | Group C | |
| n | 32 | 29 | 37 |
| Early cholangitis | 6% | 0% | 32% |
| 30-d mortality | 0% | 3% | 30% |
| Survival (d) | 145 | 225 | 45 |
Group A: One lobe opacified and the same lobe drained; Group B: Both lobes opacified and both lobes drained; Group C: Both lobes opacified with just one lobe drained. Available from Chang et al[18].
