Table 4.
Percentage changes in total bilirubin values after stenting, survival and primary stent patency duration in patients with different types of obstruction treated with unilobar or bilobar stenting and partial- or whole-liver drainage. Similar table design was used in a study by Brountzos et al. [4].
| Obstruction type | No. | Decrease in TBIL levels after stenting, % | P value | Survival | P value | Primary patency | P value | |
|---|---|---|---|---|---|---|---|---|
| Distal | 77 | 52.4 | (32.7–65.4) | – | 86.7±13.9 | – | 81.2±13.1 | – |
| Bismuth I | 69 | 52.9 | (22–68.2) | – | 187.3±44 | – | 155.3±35.1 | – |
| Bismuth II Unilobar stenting Bilobar stenting |
22 19 3 |
34.5 33.8 39.1 |
(7.9–57) (27.6–52.2) (19.2–58.3) |
0.948 | 225.9±98.6 164.2±83 249.2 |
0.340 | 161.9±77.1 118.9±63.6 176.9 |
0.424 |
| Bismuth III Unilobar stenting Bilobar stenting |
37 25 12 |
38.5 37.2 43.4 |
(8.8–60.6) (16.1–60.9) (12.1–61.9) |
0.357 | 134.4±23 98.1±28 200.7±98.1 |
0.032 | 106.9±21 70±21.2 178.8±22 |
0.007 |
| Bismuth IV Unilobar stenting Bilobar stenting |
17 11 6 |
35.3 22.0 72.4 |
(2.2–72.7) (7.4–67.3) (65–82.6) |
< 0.001 | 80.9±22.6 47±12 123±54.2 |
0.257 | 65.8±20.8 47±13.9 123±54.2 |
0.280 |
| Method of liver parenchyma drainage | ||||||||
| Partial-liver Whole-liver |
55 167 |
35.6 52.5 |
(0.5–60.9) (26.2–70) |
< 0.001 | 115.2±31.1 153.2±24.6 |
0.035 | 77.5±22.2 125.2±18 |
0.044 |
TBIL – total bilirubin. Percentage changes in bilirubin values after stenting are expressed as median (interquartile range). Survival and primary stent patency are expressed as estimated mean ± standard error. The decrease in serum bilirubin levels was statistically significant for all types of obstruction according to the Bismuth-Corlette classification (P<0.05).