Table 4.
Confounding factors affecting shunt thrombosis
| Factor | Thrombosed shunt (n = 27) | Patent shunt (n = 57) | p-value |
|---|---|---|---|
| Diagnosis (EHPVO : NCPF) | 13 : 14 | 26 : 31 | 0.83a) |
| Grade of esophageal varices at presentation (≤ II : > II) | 13 : 14 | 25 : 32 | 0.89a) |
| SV diameter (mm) | 12 (8–16) | 11 (8–16) | 0.21b) |
| Shunt diameter (mm) | 10 (8–13) | 10 (8–13) | 0.49b) |
| Interval between shunt surgery & evaluation for thrombosis (yr) | 1 (0.9–3.0) | 1.2 (0.7–3.0) | 0.38b) |
| Post splenectomy platelet count (lakhs/mm3) | 3.08 (1.0–9.0) | 2.85 (1.0–7.0) | 0.75b) |
Values are presented as number only or median (range).
EHPVO, extrahepatic portal vein obstruction; NCPF, noncirrhotic portal fibrosis; SV, splenic vein.
a)χ2 test; b)Mann–Whitney U test.